CN218381150U - Gas meter - Google Patents
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- CN218381150U CN218381150U CN202222623504.1U CN202222623504U CN218381150U CN 218381150 U CN218381150 U CN 218381150U CN 202222623504 U CN202222623504 U CN 202222623504U CN 218381150 U CN218381150 U CN 218381150U
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Abstract
The application relates to a gas meter, which comprises a shell, wherein the shell is provided with a gas inlet and a gas outlet, and a valve is arranged at the gas inlet of the shell; the metering device is arranged in the shell, and gas can be discharged from the gas outlet through the metering device; a first insulation pressure sensor is arranged in the shell; a second absolute pressure sensor is arranged outside the shell and used for measuring atmospheric pressure; and the control module is in signal connection with the first absolute pressure sensor, the second absolute pressure sensor and the valve, and can control the opening and closing of the valve. The gas meter provided by the technical scheme is characterized in that a first absolute pressure sensor is arranged in the shell, the first absolute pressure sensor can measure the pressure of gas in the shell, a second absolute pressure sensor can measure the atmospheric pressure of the gas meter, the measurement values of the two absolute pressure sensors are used for calculating, and whether the gas in the meter has abnormal pressure or not can be judged according to the calculation result.
Description
Technical Field
The application relates to the technical field of gas delivery, in particular to a gas meter.
Background
With the development of economy and the progress of society, the safety requirement on gas utilization of gas is higher and higher, so that the gas accidents are avoided, and the life and property loss of people is avoided.
Although there is a gas meter with pressure monitoring at present, it only measures the absolute pressure of the gas passing through the gas meter, and the current gas meter pressure monitoring mode cannot monitor the absolute pressure and the relative pressure in the pipeline at the same time. The pressure applied by natural gas field conveying natural gas is different from the pressure of natural gas in the pipeline in the user's house, if the absolute pressure and the relative pressure of the gas pipeline in the user's house can not be measured at the same time, the judgment of whether the gas pressure in the pipeline is abnormal or not can not be realized.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a gas meter for realize simultaneously monitoring relative pressure and absolute pressure in the table.
A gas meter, comprising:
the air inlet of the shell is provided with a valve;
the metering device is arranged in the shell, and gas can be discharged from the gas outlet through the metering device;
a first insulation pressure sensor is arranged in the shell; a second absolute pressure sensor is arranged outside the shell and used for measuring atmospheric pressure;
and the control module is in signal connection with the first absolute pressure sensor, the second absolute pressure sensor and the valve, and can control the opening and closing of the valve.
The gas meter provided by the technical scheme is characterized in that a first absolute pressure sensor is arranged in the shell, the first absolute pressure sensor can measure the absolute pressure of gas in the shell, the second absolute pressure sensor can measure the atmospheric pressure of the position where the gas meter is located, and the difference between the measurement value of the first absolute pressure sensor and the measurement value of the second absolute pressure sensor is relative pressure. The control module can calculate through the measured values of the two absolute pressure sensors, can judge whether the gas in the gas meter has abnormal pressure conditions according to the calculation result, and can automatically close the valve through the control module under the abnormal pressure conditions. Because each user needs to install a gas meter, if the user selects the gas meter provided by the technical scheme, the safety in the gas using process can be improved, the user can find abnormal conditions such as gas leakage in time, and the user can take corresponding safety measures according to the abnormal conditions.
Further, the housing has an interior cavity, the air inlet and the air outlet communicating the interior cavity with the exterior of the housing; the metering device is provided with a first through hole, and the first end of the first through hole is connected with the air outlet; the second end of the first through hole is communicated with the air inlet through the inner cavity.
Further, the valve is disposed inside the housing.
Further, the control module is in signal connection with a gas alarm.
The gas alarm can detect the gas of revealing, through setting up gas alarm and control module signal connection, detects the gas at the gas alarm and reveals the back, can send the signal to control module, makes control module close the valve, avoids the gas further to reveal.
Further, a control box is arranged on the outer side surface of the shell, and the second absolute pressure sensor and the control module are arranged in the control box.
Furthermore, the control module is also connected with a display module; the display module can display the relative pressure and the absolute pressure of the gas in the gas meter, and the relative pressure is the pressure of the gas relative to the atmosphere.
Further, the display module comprises a display screen, and the display screen is arranged on the surface of the control box.
Furthermore, a second through hole is formed in the shell, the first insulation pressure sensor is connected with the control module through a signal wire, the signal wire penetrates through the second through hole, and a sealing ring is arranged between the signal wire and the second through hole.
Further, the metering device is a mechanical membrane type movement or an ultrasonic meter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a gas meter provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a gas meter provided in an embodiment of the present application.
Icon: 1-a shell; 11-an air inlet; 12-air outlet; 2-a first absolute pressure sensor; 3-a second absolute pressure sensor; 4-a valve; 5-a control box; 6-a metering device; 61-first via hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
The inventor of the application finds that most of gas meters with pressure detection functions on the market can only detect the gas pressure in the meter, the detected pressure value can only reflect the pressure of the gas in the meter, the gas pressure in the gas meter can also change correspondingly along with the change of influence factors such as temperature and the like, and for a user, whether the pressure is abnormal or not can not be judged only according to the gas pressure in the meter. Based on this, the inventor of the present application provides a gas meter, which includes a housing 1, and a first absolute pressure sensor 2 disposed inside the housing 1 and a second absolute pressure sensor 3 disposed outside the housing 1, where the first absolute pressure sensor 2 is used to measure gas pressure in the gas meter, the second absolute pressure sensor 3 is used to measure atmospheric pressure of an environment where the gas meter is located, and a difference between a measurement value of the first absolute pressure sensor 2 and a measurement value of the second absolute pressure sensor 3 is a relative pressure of gas in the gas meter; the atmospheric pressure measured by the second absolute pressure sensor 3 can eliminate the interference of factors such as temperature, altitude and the like on the internal gas pressure of the gas meter, so that the measurement values of the first absolute pressure sensor 2 and the second absolute pressure sensor 3 can be conveniently calculated, and whether the pressure in the gas meter is abnormal or not can be judged according to the calculation result.
The housing 1 provided by the application comprises a gas inlet 11 and a gas outlet 12, wherein gas enters the gas meter from the gas inlet 11 and is discharged from the gas outlet 12. The housing 1 also has an interior cavity, with the air inlet 11 and the air outlet 12 communicating the interior cavity of the housing 1 with the atmosphere outside the housing 1. A metering device 6 is also provided in the housing 1 for measuring the gas usage by the user. The metering device 6 is provided with a first through hole 61, a first end of the first through hole 61 is in butt joint with the air outlet 12 on the shell 1, and a second end of the first through hole 61 is communicated with the air inlet 11 of the shell 1 through the inner cavity, so that the fuel gas enters from the air inlet 11 of the shell 1 and then is discharged from the air outlet 12 through the first through hole 61. The metering device 6 provided by the present application may be implemented using an existing mechanical diaphragm type movement or ultrasonic meter.
In some embodiments, a control module in signal connection with both the first absolute pressure sensor 2 and the second absolute pressure sensor 3 is arranged in the gas meter to receive the measurement values of the first absolute pressure sensor 2 and the second absolute pressure sensor 3; the program is used to automatically calculate the pressure according to the measurement data of the first absolute pressure sensor 2 and the second absolute pressure sensor 3. Specifically, the control module includes a device capable of storing and executing programs, such as a single chip microcomputer.
In some embodiments, the gas meter further comprises a valve 4, and the valve 4 is disposed at the position of the gas inlet 11 on the housing 1 and can cut off the supply of the gas. The valve 4 may be provided inside the housing 1 or outside the housing 1. One of the reasons for the abnormality of the pressure in the gas supply line is that gas leaks from the gas supply line, and by closing the valve 4, if the pressure measured by the first absolute pressure sensor 2 decreases gradually, gas leaks from the line or the gas meter to which the gas outlet 12 is connected.
In some embodiments, the control module may be used to perform the process of detecting whether the gas pressure is normal and closing the valve 4 for pressure-holding leakage detection.
Specifically, first absolute pressure sensor 2, second absolute pressure sensor 3 and valve 4 all with control module signal connection, judge that gas pressure exists when unusual after control module calculates according to first absolute pressure sensor and second absolute pressure sensor's measured data, send the signal of closing to valve 4 by control module, realize valve 4's self-closing, later gather first absolute pressure sensor 2's measured data by control module again, detect whether change appears in first absolute pressure sensor 2's measured value, realize the function of automatic pressurize leak detection.
In order to facilitate observation of the pressure in the gas meter, a display module can be arranged outside the shell 1 and is in signal connection with the control module, and the control module sends the received data from the first absolute pressure sensor 2 to the display module, so that the purpose of displaying the pressure of the gas in the shell 1 is achieved.
In addition, can also use control module bluetooth signal connection can detect the gas alarm of gas, but the gas alarm independent mount in the wall body, detect the gas that reveals at the gas alarm after, can send the signal to control module, control module makes valve 4 close after receiving the signal, avoids the gas further to reveal.
The control module and the display module that this application embodiment adopted can be integrated in control box 5 to the production manufacturing of the gas table that this application provided.
Example 1
A gas meter is shown in fig. 1, and includes a housing 1, and the housing 1 is provided with a gas inlet 11 and a gas outlet 12. A valve 4 located inside the housing 1 is provided at the location of the air inlet 11 of the housing 1. The inside of the housing 1 is further provided with a metering device 6, as shown in fig. 2, the metering device 6 is provided with a first through hole 61, and the first through hole 61 is in butt joint with the air outlet 12, so that the fuel gas entering from the air inlet 11 passes through the first through hole 61 and then is discharged from the air outlet 12; the metering device 6 is capable of calculating the amount of gas passing through the first through hole 61. The first absolute pressure sensor 2 is provided on the metering device 6.
The gas alarm is characterized in that a control box 5 is arranged on the outer side of the shell 1, a control module and a display module are arranged in the control box 5, the control module is connected with the valve 4, the display module and the gas alarm in a signal connection mode, and the gas alarm is arranged on the wall surface. And a second absolute pressure sensor 3 for detecting atmospheric pressure is further arranged in the control box 5, and the first absolute pressure sensor 2 and the second absolute pressure sensor 3 are in signal connection with the control module.
The display module further comprises a display screen, and the display screen is arranged on the outer side surface of the control box 5 and used for displaying detection data of the first absolute pressure sensor 2 and the second absolute pressure sensor 3.
It should be noted that, in the case of no conflict, the features in the embodiments in the present application may be combined with each other.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A gas meter, comprising:
the air inlet of the shell is provided with a valve;
the metering device is arranged in the shell, and gas can be discharged from the gas outlet through the metering device;
a first insulation pressure sensor is arranged in the shell; a second absolute pressure sensor is arranged outside the shell and used for measuring atmospheric pressure;
and the control module is in signal connection with the first absolute pressure sensor, the second absolute pressure sensor and the valve, and can control the opening and closing of the valve.
2. A gas meter as claimed in claim 1, wherein the housing has an internal cavity, the gas inlet and the gas outlet communicating the internal cavity with the exterior of the housing; the metering device is provided with a first through hole, and the first end of the first through hole is connected with the air outlet; the second end of the first through hole is communicated with the air inlet through the inner cavity.
3. The gas meter of claim 1, wherein the valve is disposed inside the housing.
4. The gas meter according to claim 1, wherein the control module is connected with a gas alarm by signals.
5. A gas meter as claimed in claim 1, wherein a control box is provided on the outer surface of the housing, and the second absolute pressure sensor and the control module are provided in the control box.
6. The gas meter according to claim 5, wherein the control module is further connected with a display module; the display module can display the relative pressure and the absolute pressure of the gas in the gas meter, and the relative pressure is the pressure of the gas relative to the atmosphere.
7. The gas meter of claim 6, wherein the display module comprises a display screen, and the display screen is disposed on the surface of the control box.
8. The gas meter according to claim 1, wherein the housing is provided with a second through hole, the first absolute pressure sensor is connected with the control module through a signal line, the signal line passes through the second through hole, and a seal ring is arranged between the signal line and the second through hole.
9. A gas meter according to claim 1, wherein the metering device is a mechanical diaphragm type movement or an ultrasonic meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222623504.1U CN218381150U (en) | 2022-09-30 | 2022-09-30 | Gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222623504.1U CN218381150U (en) | 2022-09-30 | 2022-09-30 | Gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218381150U true CN218381150U (en) | 2023-01-24 |
Family
ID=84956936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222623504.1U Active CN218381150U (en) | 2022-09-30 | 2022-09-30 | Gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218381150U (en) |
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2022
- 2022-09-30 CN CN202222623504.1U patent/CN218381150U/en active Active
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