CN112763131A - Gas pressure abnormity control system based on Internet of things intelligent gas meter - Google Patents
Gas pressure abnormity control system based on Internet of things intelligent gas meter Download PDFInfo
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- CN112763131A CN112763131A CN202110114269.2A CN202110114269A CN112763131A CN 112763131 A CN112763131 A CN 112763131A CN 202110114269 A CN202110114269 A CN 202110114269A CN 112763131 A CN112763131 A CN 112763131A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
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Abstract
The invention discloses a gas pressure abnormity control system based on an Internet of things intelligent gas meter, which comprises the existing Internet of things intelligent gas meter, wherein a pressure detection device is arranged on the Internet of things intelligent gas meter, the pressure detection device comprises an arc-shaped hollow spring pipe, one end of the spring pipe is opened and fixed, the other end of the spring pipe is closed and freely stretches, the opening is communicated with a gas channel to obtain gas pressure, signal switches are arranged on two sides of the free end of the spring pipe, the pressure detection device monitors the pressure condition of the gas pipeline in real time, when an overpressure or undervoltage abnormal condition occurs, the switching signal is transmitted to the signal storage processing device, the valve control device is instructed to cut off the gas pipeline, and the command communication device wirelessly sends the abnormal gas pressure alarm information, realizes automatic control and remote alarm, can also distinguish the abnormal pressure type, and has the advantages of low cost and high pressure detection precision.
Description
Technical Field
The invention relates to a gas pressure abnormity control alarm system, in particular to a gas pressure abnormity control system based on an Internet of things intelligent gas meter.
Background
Natural gas is a high-quality, high-efficiency, green and clean low-carbon energy, and is widely applied to the life of urban residents, but natural gas has the characteristics of flammability and explosiveness, indoor safety accidents occur in some cases, safe gas consumption has specific requirements on gas supply pressure, and the natural gas combustion working condition is abnormal due to overpressure or underpressure, even a gas leakage accident is caused, so that alarm and valve closing are required to be carried out on the condition of ultrahigh or underpressure of gas supply pressure, and the gas consumption safety is ensured, in reality, some internet of things gas meters on the market are formed by means of the existing chips and modern communication technology, functions such as remote meter reading, payment recharging, gas leakage monitoring and the like are realized, the management efficiency of gas enterprises is improved, and convenient service is also brought to users, referring to fig. 5, the main principle structure of the gas meter is provided with a metering device, a model storage processing device, a, the metering device is used for collecting gas metering signals, the valve control device is used for controlling the on-off of a gas valve, the communication device sends alarm information when abnormal conditions are detected, the model storage processing device carries out calculation processing according to data detected outside and sends out on-off control and communication alarm instructions of the gas valve, and therefore a gas meter metering system or some Internet of things gas meters do not have the function of detecting and controlling overpressure or underpressure of gas supply pressure.
The existing overpressure/decompression cut-off device is installed in a pipeline, overpressure/underpressure shutoff is realized by mechanically setting the balance between external force and gas pressure in the pipeline, the structure is complex, the cost is high, the pipeline resistance is increased, overpressure or underpressure cannot be distinguished, automatic alarm cannot be realized, a specific balance relationship is formed between magnetic force and gas pressure in the pipeline through a film and atmospheric pressure, when the gas pressure is ultrahigh or underpressure, the balance of the dead weight of the original valve body is broken, and valve shutoff is realized, referring to FIG. 4, in a normal ventilation state, the pressure of the upper part and the lower part of the film 5 is balanced, the valve flap 6 is opened, when the gas pressure is underpressure, the film 5 is pressed downwards, the limiting device 7 is closed by pulling the valve flap 6, when the overpressure occurs, the film 5 is pulled upwards, the magnet 8 is separated, and the valve flap 6 is also pulled to be closed, but the structure of the device, greatly increase the gas resistance, influence normal gas consumption, and can't report to the police automatically and distinguish the unusual type of pressure.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a gas pressure abnormity control system based on an Internet of things intelligent gas meter.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a gas pressure anomaly control system based on thing networking intelligent gas table, includes thing networking intelligent gas table, thing networking intelligent gas table is provided with pressure measurement, pressure measurement includes the spring pipe, install signal switch on the spring pipe.
And the fixed end of the spring pipe is communicated with the pipe wall of the gas pipeline or the gas meter of the gas pipeline.
The signal switch is any one of a mechanical contact switch, a photoelectric contact switch or a magnetic contact switch.
The number of the signal switches is two, and the signal switches are symmetrically arranged on two sides of the free end of the spring tube.
The pipe body of the spring pipe is a hollow pipe with radian, and the section of the spring pipe is circular, oblate or elliptical.
The invention has the beneficial effects that: the pressure detection device monitors the pressure condition of the gas pipeline in real time, transmits a switching signal to the signal storage processing device when an overpressure or undervoltage abnormal condition occurs, instructs the valve control device to cut off the gas pipeline, and instructs the communication device to wirelessly send gas pressure abnormal alarm information, and the structure of the whole pressure detection device is not positioned in the gas pipeline, so that extra resistance cannot be generated in the pipeline, automatic control and remote alarm are realized, the type of pressure abnormality can be distinguished, and the pressure detection device has the advantages of low cost and high pressure detection precision.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic structural view of a spring tube;
FIG. 3 is a cross-sectional view of a spring tube;
FIG. 4 is a schematic view of a prior art over-or under-pressure cut-off device;
fig. 5 is a structural block diagram of an existing internet of things intelligent gas meter.
Detailed Description
Referring to fig. 1 to 3, a gas pressure abnormality control system based on an internet of things intelligent gas meter comprises the internet of things intelligent gas meter, the internet of things intelligent gas meter comprises a signal storage processing device, and a metering device, a valve control device and a communication device which are connected with the signal storage processing device, the signal storage processing device is connected with a pressure detection device, the pressure detection device comprises a spring pipe 1, a signal switch 2 is installed on the spring pipe 1, the whole pressure detection device is simple in structure and low in manufacturing cost, the spring pipe 1 is a C-shaped bourdon tube, the metering device is a gas meter for metering gas in a gas pipeline, the valve control device is an electromagnetic valve installed on the gas pipeline and used for controlling the on-off of the gas, the pressure detection device monitors the pressure condition of the gas pipeline in real time, and transmits a signal to the signal storage processing device when an abnormal condition of overpressure or under-pressure occurs, the valve control device is instructed to cut off the gas pipeline and the communication device is instructed to wirelessly send alarm information.
The fixed end 3 (the end is fixed and the opening) of the spring pipe 1 is communicated with the pipe wall of the gas pipeline or the gas meter of the gas pipeline to obtain gas pressure, namely, the gas is connected into the pipe wall of the gas pipeline or the gas meter, the structure of the whole pressure detection device is not positioned in the gas pipeline, extra resistance cannot be generated in the pipeline, the other end of the spring pipe 1 is a free end and is closed, and the spring pipe can be compressed, stretched and deformed to be deformed
The signal switches 2 (electrically connected with the signal storage processing device) are any one of a mechanical contact switch, a photoelectric contact switch or a magnetic contact switch, the number of the signal switches 2 is two, according to the compression deformation amplitude of the spring tube, the contacts are respectively arranged at the overpressure position and the undervoltage position at two sides of the free end 4, when the contacts are touched, an overvoltage or undervoltage signal is sent to the signal storage processing device, the shell 9 is sleeved outside the spring tube 1, the shell 9 can be replaced by a protective rubber sleeve, the opening of the fixed end of the spring tube 1 is connected with gas with pressure, the free end (closed end) is pressed and deformed, the pressure rises to extend outwards, the pressure falls to shrink inwards, when the spring tube 1 drives the signal switch 2 to touch the spring tube 1 or the shell 9, and sending an under-pressure or over-pressure signal to the signal processing unit to realize automatic alarm and pressure abnormality type identification.
The pipe body of the spring pipe 1 is a hollow pipe with radian, the section of the spring pipe 1 is circular, oblate or elliptical, and particularly when the section of the spring pipe 1 is oblate or elliptical, the spring pipe can be more sensitive to pressure change in a gas pipeline, and the pressure detection precision is enhanced.
It should be noted that, a signal storage processing device of the existing internet of things gas meter metering system generally adopts a signal processing chip on the market, and a communication device adopts communication devices such as WIFI and 3/4G, and in this embodiment, an NB-ioT module is adopted to construct the signal storage processing device and the communication device, so that after receiving a signal sent by the signal switch 2, the signal storage processing device has a corresponding signal processing function, and meanwhile, signal transmission with low power consumption can be performed.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.
Claims (5)
1. The utility model provides a gas pressure anomaly control system based on thing networking intelligent gas table, includes thing networking intelligent gas table, its characterized in that thing networking intelligent gas table is provided with pressure measurement, pressure measurement includes spring pipe (1), install signal switch (2) on spring pipe (1).
2. The gas pressure abnormity control system based on the Internet of things intelligent gas meter according to claim 1, characterized in that the fixed end (3) of the spring pipe (1) is communicated with the pipe wall of a gas pipeline or the gas meter of the gas pipeline.
3. The gas pressure abnormality control system based on the intelligent gas meter based on the internet of things according to claim 1, wherein the signal switch (2) is any one of a mechanical contact switch, a photoelectric contact switch or a magnetic contact switch.
4. The gas pressure abnormality control system based on the intelligent gas meter based on the internet of things as claimed in claim 1 or 3, wherein the number of the signal switches (2) is two, and the signal switches are symmetrically arranged on two sides of the free end (4) of the spring tube (1).
5. The gas pressure abnormality control system based on the internet of things intelligent gas meter according to claim 1, characterized in that the body of the spring tube (1) is a hollow tube with a radian, and the cross section of the spring tube (1) is circular, oblate or elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110114269.2A CN112763131A (en) | 2021-01-28 | 2021-01-28 | Gas pressure abnormity control system based on Internet of things intelligent gas meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110114269.2A CN112763131A (en) | 2021-01-28 | 2021-01-28 | Gas pressure abnormity control system based on Internet of things intelligent gas meter |
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| CN112763131A true CN112763131A (en) | 2021-05-07 |
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| CN202110114269.2A Pending CN112763131A (en) | 2021-01-28 | 2021-01-28 | Gas pressure abnormity control system based on Internet of things intelligent gas meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790912A (en) * | 2021-08-19 | 2021-12-14 | 上海卫星工程研究所 | Overpressure autonomous management test method and system for attitude and orbit control pipeline of spacecraft propulsion system |
| CN114646429A (en) * | 2022-03-17 | 2022-06-21 | 天津市金凤来仪科技有限公司 | Indoor combustible gas real-time detection early warning device of thing networking |
-
2021
- 2021-01-28 CN CN202110114269.2A patent/CN112763131A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790912A (en) * | 2021-08-19 | 2021-12-14 | 上海卫星工程研究所 | Overpressure autonomous management test method and system for attitude and orbit control pipeline of spacecraft propulsion system |
| CN113790912B (en) * | 2021-08-19 | 2024-03-19 | 上海卫星工程研究所 | Spacecraft propulsion system attitude and orbit control pipeline overpressure autonomous management test method and system |
| CN114646429A (en) * | 2022-03-17 | 2022-06-21 | 天津市金凤来仪科技有限公司 | Indoor combustible gas real-time detection early warning device of thing networking |
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