Online metering and monitoring device of gas meter system

Abstract

The utility model relates to the technical field of measuring instrument monitoring, in particular to an online measuring and monitoring device of a gas meter system, which comprises a control box, a hard pipeline, a flexible pipeline, a first gas sensor, a second gas sensor, a bidirectional fan, a detection mechanism, a filter and an electromagnetic flow regulating valve. The leakage monitoring device is simple in structure and convenient to use, leakage of the gas meter and accessory equipment of the gas meter can be automatically monitored, the metering value of the gas meter can be detected, the quality of the gas meter can be monitored, the electromagnetic flow regulating valve can be closed in time according to the leakage condition, an alarm can be given, and the exhaust fan can be opened to purify and exhaust air; and aiming at the self-quality problem of the gas meter, hidden dangers caused by the self-quality problem of the gas meter can be avoided through monitoring.

Description

Technical Field

[0001] The invention relates to the technical field of metering instrument monitoring, and in particular to an online metering monitoring device for a gas meter system. Background Art

[0002] Gas is a general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, and coal-to-gas. The main components of liquefied petroleum gas are one or two of propane, propylene, butane, and butene, and it is also mixed with a small amount of pentane, pentene, and trace sulfide impurities. During use, liquefied petroleum gas is a colorless gas or a yellow-brown oily liquid with a special odor and is flammable and explosive. When the concentration of liquefied gas in the air reaches 25%-30%, it can cause headaches, dizziness, fatigue, inattention, accelerated breathing and heartbeat. If not kept away from it in time, it can cause suffocation and death. If it leaks and is not closed in time, it is likely to cause casualties or even an explosion.

[0003] Gas meters are widely used as household gas measuring instruments. They are connected to gas stoves or other gas-using tools such as gas water heaters through pipes. Leakage of the gas meter itself and the equipment connected to it pose a huge safety risk.

[0004] Therefore, leakage monitoring of gas meters and their ancillary equipment is related to the safety of people's lives and property. The existing patent application CN202410958726 discloses a gas meter controller, including a meter display mechanism, including a gas meter body, a mounting hoop arranged on the gas meter body, and a body component arranged on the gas meter body; a control mechanism, including a housing component arranged on the gas meter body, and a monitoring component arranged in the housing component; through the built-in monitoring component and gas cut-off component, it can automatically start when the gas leakage reaches a predetermined concentration, and quickly cut off the gas supply through a mechanical device, effectively preventing possible safety accidents caused by users' failure to discover in time, while reducing the laying of external lines, making the gas use environment safer; in addition, the overall design takes into account ease of use, safety and intelligent control, enhances the reliability of gas use and user safety, and the design based on mechanical parts can greatly save costs. However, this application has the following defects:

[0005] 1. Although the application can monitor gas meter leaks, it has the defects of complex structure and inconvenience in use. This is reflected in the fact that although the gas shut-off component can cut off the gas meter by pressing the button, the response speed is slow and the button on the plate is easy to slip.

[0006] 2. This application can only monitor gas leaks at the gas meter. However, among household gas, gas stoves are a greater source of danger, and it is impossible to monitor gas leaks from gas stoves.

[0007] 3. This application can only detect gas meters with obvious leaks. It is difficult to detect trace leaks in gas meters, resulting in the inability to monitor the working status of the gas meter and the inability to identify whether the measurement value of the gas meter is accurate. In turn, it lacks the function of monitoring the quality of the gas meter itself. Utility Model Content

[0008] The present invention provides an online metering and monitoring device for a gas meter system, the purpose of which is to solve the problems (1)-(3) described in the prior art.

[0009] In order to achieve the above purpose, the new technical solution is:

[0010] A gas meter system online metering and monitoring device includes a control box, a hard pipe, a flexible pipe, a first gas sensor, a second gas sensor, and a two-way fan. The control box is arranged below the gas meter and is fixedly connected to the outer casing of the gas meter through a hanger. The hard pipe passes through the control box in the longitudinal direction. The lower end of the hard pipe is connected to the upper port of the flexible pipe. The lower port of the flexible pipe is arranged in a cabinet or on the ground below the gas stove. The lower end of the hard pipe is fixedly provided with a two-way fan. The upper part of the inner wall of the hard pipe is provided with a first gas sensor, and the upper part of the inner wall of the flexible pipe is provided with a second gas sensor. The control box is provided with a battery and a controller that are electrically connected to each other. The controller is electrically connected to the two-way fan, the first gas sensor, and the second gas sensor through wires.

[0011] Preferably, an alarm is provided on the outer wall of the control box, and the controller is electrically connected to the alarm via a wire.

[0012] Preferably, the system further comprises a detection mechanism for verifying the measurement value of the gas meter, and the controller is electrically connected to the detection mechanism via a wire.

[0013] Preferably, the front end of the gas meter is connected to an air inlet pipe and the rear end is connected to an air outlet pipe. A main valve is provided on the air inlet pipe, and a detection mechanism is provided on the air inlet pipe and the air outlet pipe on the side of the main valve away from the gas meter.

[0014] Preferably, the detection mechanism includes a first gas flow sensor provided in the air inlet pipe and a second gas flow sensor provided on the air outlet pipe, and the gas meter, the first gas flow sensor and the second gas flow sensor are electrically connected to the controller via wires respectively.

[0015] Preferably, the air intake pipe is further provided with an electromagnetic flow regulating valve, and the electromagnetic flow regulating valve is electrically connected to the controller via a wire.

[0016] Preferably, the upper end of the rigid pipe is connected to a first air collecting hood, and the lower end of the flexible pipe is connected to a second air collecting hood.

[0017] Preferably, the controller is provided with a timing module, and the controller starts the bidirectional fan to rotate forward or reverse at regular intervals through the timing module.

[0018] Preferably, a branch pipe is connected to the side wall of the hard pipe, a filter is connected to the end of the branch pipe, an exhaust pipe is connected to the air outlet of the filter, and the exhaust pipe passes through the outer wall of the house where the gas meter is located and discharges the gas outdoors.

[0019] Preferably, the filter includes a shell and activated carbon arranged in the shell, the air inlet of the shell is connected to the end of the branch pipe, the air outlet of the shell is connected to the exhaust pipe, and the branch pipe is provided with an exhaust fan.

[0020] The beneficial effects of this new type of gas meter system online measurement and monitoring device:

[0021] This new device has a simple structure and is easy to use. It can automatically monitor the leakage of gas meters and their ancillary equipment, detect the measurement value of the gas meter itself, monitor the quality of the gas meter, and promptly close the electromagnetic flow regulating valve to give an alarm in case of leakage, and turn on the exhaust fan to purify the air and discharge it. For the quality problems of the gas meter itself, the hidden dangers caused by the quality problems of the gas meter itself can be avoided through monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 , a schematic diagram of the overall structure of the new model;

[0023] Figure 2 , a schematic diagram of the new second gas collecting hood installed under the gas stove to collect leaked gas;

[0024] Figure 3 , a schematic diagram of the top view of the novel control box;

[0025] 1. Control box; 2. Hanging rod; 3. Gas meter; 4. Inlet pipe; 5. Main valve; 6. Battery; 7. Controller; 8. Outlet pipe; 9. Alarm; 10. Hard pipe; 11. Flexible pipe; 12. First gas hood; 13. Second gas hood; 14. Filter; 15. Branch pipe; 16. Exhaust fan; 17. Exhaust pipe; 18. First gas sensor; 19. Second gas sensor; 20. First gas flow sensor; 21. Second gas flow sensor; 22. Bidirectional fan. DETAILED DESCRIPTION

[0026] The following describes in detail the implementation methods of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, they cannot be understood as a limitation on the present invention.

[0028] The following embodiments can be understood as part of the technical structure and principle of the present invention, and can also be understood as a combination of multiple embodiments to explain a wider range of structures and principles of the present invention.

[0029] Example 1

[0030] This embodiment discloses an online metering and monitoring device for a gas meter system. Figure 1 As shown, it includes a control box 1, a hard pipe 10, a flexible pipe 11, a first gas sensor 18, a second gas sensor 19, and a two-way fan 22. The control box 1 is arranged below the gas meter and is fixedly connected to the outer casing of the gas meter 3 through the hanger 2, so as to detect gas leakage at the gas meter through the hard pipe 10.

[0031] The hard pipe 10 passes through the control box 1 in the longitudinal direction. The lower end of the hard pipe 10 is connected to the upper end of the flexible pipe 11. The lower end of the flexible pipe 11 is set in the cabinet or on the ground below the gas stove to detect gas leakage of the gas stove through the flexible pipe. A two-way fan 22 is fixed at the lower end of the hard pipe 10, which collects gas leaked from the gas meter or gas stove for detection by intermittently pumping air upward or downward.

[0032] A first gas sensor 18 is provided on the upper part of the inner wall of the hard pipe 10, and a second gas sensor 19 is provided on the upper part of the inner wall of the flexible pipe 11. The control box 1 is provided with a battery 6 and a controller 7 which are electrically connected to each other. The controller 7 is electrically connected to the two-way fan 22, the first gas sensor 18, and the second gas sensor 19 through wires. When the two-way fan draws air upward, the second gas sensor first detects gas leakage information, which means that a leak has occurred at the gas stove. When the two-way fan draws air downward, the first gas tube sensor detects gas leakage information, which means that a leak has occurred at the gas meter.

[0033] Example 2

[0034] In this embodiment, Figure 1 As shown, an alarm 9 is provided on the outer wall of the control box 1, and the controller 7 is electrically connected to the alarm 9 through a wire. No matter if a leak occurs at the gas meter or the gas stove, an alarm is triggered and rescue is requested immediately.

[0035] In this embodiment, Figure 1 As shown, the system also includes a detection mechanism for verifying the measurement value of the gas meter 3. The controller 7 is electrically connected to the detection mechanism via a wire. Not only is leakage from the gas meter itself a risk factor, but inaccurate gas meter measurement is also a risk factor because it indicates that there is a quality problem with the gas meter and it needs to be repaired or replaced.

[0036] The front end of the gas meter 3 is connected to an inlet pipe 4, and the rear end is connected to an outlet pipe (not labeled in the figure). The inlet pipe is equipped with a main valve 5. Detection mechanisms are installed on the inlet and outlet pipes on the side of the main valve 5 away from the gas meter 3. The main valve is a mechanical valve that controls the opening and closing of the gas main pipe, i.e., the inlet pipe.

[0037] Example 3

[0038] In this embodiment, Figure 1 As shown, the detection mechanism includes a first gas flow sensor 20 provided in the air inlet pipe 4 and a second gas flow sensor 21 provided on the air outlet pipe. The gas meter 3, the first gas flow sensor 20 and the second gas flow sensor 21 are electrically connected to the controller 7 through wires.

[0039] The controller 7 compares the three values ​​through software: If the detection value of the first gas flow sensor 20 is greater than the detection value of the second gas flow sensor 21, it means that the gas meter has a hidden or obvious leak, and an alarm is issued, requiring the gas meter to be repaired or replaced. If the detection values ​​of the first gas flow sensor 20 and the second gas flow sensor 21 are consistent with the gas meter flow value, it means that the gas meter is leak-free and the measurement is accurate. At this time, if the first gas sensor 18 still detects a gas leak, the possibility of a leak in another location is considered. If the detection value of the first gas flow sensor 20 is equal to the detection value of the second gas flow sensor 21, but the gas meter flow value is greater than both, it means that the gas meter is faulty.

[0040] The air intake pipe 4 is also provided with an electromagnetic flow regulating valve (not marked in the figure), which is electrically connected to the controller 7 via a wire. The electromagnetic flow regulating valve is used to close the air intake pipe in an emergency.

[0041] Example 4

[0042] In this embodiment, Figure 1As shown, the upper end of the rigid pipe 10 is connected to a first gas collecting hood 12, and the lower end of the flexible pipe 11 is connected to a second gas collecting hood 13. The first gas collecting hood and the second gas collecting hood are used to collect leaked gas.

[0043] The controller 7 is provided with a timing module, and the controller 7 starts the bidirectional blower 22 to rotate forward or reverse at regular intervals through the timing module, thereby realizing gas leakage monitoring at the gas meter position and the gas stove position.

[0044] In this embodiment, Figure 1 As shown, a branch pipe 15 is also connected to the side wall of the hard pipe 10, the end of the branch pipe 15 is connected to a filter 14, the air outlet of the filter 14 is connected to an exhaust pipe 17, and the exhaust pipe 17 passes through the outer wall of the house where the gas meter 3 is located and discharges the gas outdoors.

[0045] Filter 14 includes a housing and activated carbon within it. The housing's air inlet is connected to the end of a branch pipe 15, and the housing's air outlet is connected to an exhaust pipe 17. Branch pipe 15 is equipped with an exhaust fan 16. To mitigate the risk of gas leaks, the exhaust fan is activated to collect the gas into the filter, achieving gas purification.

Claims

1. A gas meter system online metering and monitoring device, characterized by: It includes a control box, a hard pipe, a flexible pipe, a first gas sensor, a second gas sensor, and a two-way fan. The control box is arranged below the gas meter and is fixedly connected to the outer casing of the gas meter through a hanger. The hard pipe passes through the control box in the longitudinal direction. The lower end of the hard pipe is connected to the upper port of the flexible pipe. The lower port of the flexible pipe is arranged in a cabinet or on the ground below the gas stove. A two-way fan is fixedly provided at the lower end of the hard pipe. The upper part of the inner wall of the hard pipe is provided with a first gas sensor, and the upper part of the inner wall of the flexible pipe is provided with a second gas sensor. The control box is provided with a battery and a controller that are electrically connected to each other. The controller is electrically connected to the two-way fan, the first gas sensor, and the second gas sensor through wires.

2. The online metering and monitoring device for a gas meter system according to claim 1, characterized in that: An alarm is provided on the outer wall of the control box, and the controller is electrically connected to the alarm through a wire.

3. The online metering and monitoring device for a gas meter system according to claim 2, characterized in that: It also includes a detection mechanism for verifying the measurement value of the gas meter, and the controller is electrically connected to the detection mechanism through a wire.

4. The online measurement and monitoring device for a gas meter system according to claim 3, characterized in that: The front end of the gas meter is connected to an air inlet pipe, and the rear end is connected to an air outlet pipe. A main valve is provided on the air inlet pipe, and a detection mechanism is provided on the air inlet pipe and the air outlet pipe on the side of the main valve away from the gas meter.

5. The online measurement and monitoring device for a gas meter system according to claim 4, characterized in that: The detection mechanism includes a first gas flow sensor arranged in the air inlet pipe and a second gas flow sensor arranged on the air outlet pipe. The gas meter, the first gas flow sensor and the second gas flow sensor are electrically connected to the controller through wires.

6. The gas meter system online measurement and monitoring device according to claim 5, characterized in that: The air intake pipe is further provided with an electromagnetic flow regulating valve, which is electrically connected to the controller via a wire.

7. The online metering and monitoring device for a gas meter system according to claim 6, characterized in that: The upper end of the hard pipe is connected to a first air collecting hood, and the lower end of the flexible pipe is connected to a second air collecting hood.

8. The gas meter system online measurement and monitoring device according to claim 7, characterized in that: The controller is provided with a timing module, and the controller starts the bidirectional fan to rotate forward or reverse at regular intervals through the timing module.

9. The gas meter system online measurement and monitoring device according to claim 8, characterized in that: The side wall of the hard pipe is also connected to a branch pipe, the end of the branch pipe is connected to a filter, the air outlet of the filter is connected to an exhaust pipe, and the exhaust pipe passes through the outer wall of the house where the gas meter is located and discharges the gas outdoors.

10. The online measurement and monitoring device for a gas meter system according to claim 9, characterized in that: The filter comprises a shell and activated carbon arranged in the shell, the air inlet of the shell is connected to the end of the branch pipe, the air outlet of the shell is connected to the exhaust pipe, and the branch pipe is provided with an exhaust fan.

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