CN111947858A - Online intelligent detection Internet of things gas meter with leakage function - Google Patents
Online intelligent detection Internet of things gas meter with leakage function Download PDFInfo
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- CN111947858A CN111947858A CN202010950744.5A CN202010950744A CN111947858A CN 111947858 A CN111947858 A CN 111947858A CN 202010950744 A CN202010950744 A CN 202010950744A CN 111947858 A CN111947858 A CN 111947858A
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- connecting pipe
- pressure sensor
- differential pressure
- gas meter
- valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The invention relates to the technical field of Internet of things and discloses an online leakage intelligent detection Internet of things gas meter which comprises a device shell, wherein the left side and the right side of the upper end of the device shell are fixedly connected with a gas inlet connecting pipe and a gas outlet connecting pipe, the lower part of an inner cavity of the gas inlet connecting pipe is fixedly connected with a gas meter motor valve, the upper part of the inner cavity of the device shell is respectively connected with a micro differential pressure sensor and a pressure sensor, and the lower part of the gas outlet connecting pipe is fixedly connected with a flow measuring. This online intelligent detection thing networking gas table of revealing, through the overall structure of equipment, adopt little differential pressure and absolute pressure sensor to combine, open and close under two kinds of states at the valve, the change of differential pressure and original absolute pressure, judge the condition of revealing and reveal the rate, valve and differential pressure sensor cooperation design, differential pressure is zero before closing the valve, if reveal after closing the valve, then form differential pressure, the pressure condition before the judgement that absolute pressure can be convenient changes the reference condition after revealing.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to an online leakage intelligent detection Internet of things gas meter.
Background
The use of natural gas has been widespread among millions of households, but the incidence of explosions and deflagrations caused by the leakage of gas has increased each year. The problems of gas leakage and micro leakage cannot be fundamentally solved by means of regular safety inspection and post-treatment of gas insurance of a gas company, so that an online leakage intelligent detection Internet of things gas meter is provided
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the online leakage intelligent detection Internet of things gas meter, the micro differential pressure and the absolute pressure sensor are combined, the change of the differential pressure and the original absolute pressure under the two states of opening and closing of the valve is used for judging the leakage condition and the leakage rate, the valve and the differential pressure sensor are designed in a matching way, the differential pressure before closing the valve is zero, if leakage exists after closing the valve, the differential pressure is formed, the absolute pressure can be used for conveniently judging the pressure condition before the leakage and the change reference condition after the leakage, and the problem that the explosion and deflagration are caused by the leakage of gas in the running of the existing Internet of things gas meter every year is solved. The problems of gas leakage and micro leakage cannot be fundamentally solved by means of regular safety inspection of a gas company and post-remediation of gas insurance.
The invention provides the following technical scheme: an online leakage intelligent detection Internet of things gas meter comprises a device shell, wherein the left side and the right side of the upper end of the device shell are fixedly connected with an air inlet connecting pipe and an air outlet connecting pipe, the lower portion of an inner cavity of the air inlet connecting pipe is fixedly connected with a gas meter motor valve, the upper portion of an inner cavity of the device shell is respectively connected with a micro differential pressure sensor and a pressure sensor, the lower portion of the air outlet connecting pipe is fixedly connected with a flow measuring device, and the flow measuring device is connected with an Internet of things list integrating instrument through a.
Preferably, the gas meter motor valve and the networking meter integrating instrument are both externally connected with a power supply through a switch, and the micro differential pressure sensor and the pressure sensor are both connected with the networking meter integrating instrument through a switch.
Preferably, the device housing is a rigid sealed housing.
Preferably, the inner side and the outer side of the air inlet connecting pipe and the air outlet connecting pipe are both provided with threads.
Preferably, the inlet of the flow measuring device is provided with a solenoid valve.
Compared with the prior art, the invention has the following beneficial effects:
this online intelligent detection thing networking gas table of revealing, through the overall structure of equipment, adopt little differential pressure and absolute pressure sensor to combine, open and close under two kinds of states at the valve, the change of differential pressure and original absolute pressure, judge the condition of revealing and reveal the rate, valve and differential pressure sensor cooperation design, differential pressure is zero before closing the valve, if reveal after closing the valve, then form differential pressure, the pressure condition before the judgement that absolute pressure can be convenient changes the reference condition after revealing.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
In the figure: 1. a device housing; 2. an air inlet connecting pipe; 3. an air outlet connecting pipe; 4. a gas meter motor valve; 5. a micro differential pressure sensor; 6. a pressure sensor; 7. a flow measuring device; 8. a detection button; 9. and (4) an integrated calculating instrument of the internet of things.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention discloses an online leakage intelligent detection internet of things gas meter, which comprises a device shell 1, wherein the device shell 1 is a rigid sealing shell. The device casing 1's the upper end left and right sides fixedly connected with admit air connecting pipe 2 and the connecting pipe 3 of giving vent to anger, admit air connecting pipe 2 and pass through pipe connection mechanical locking mechanism, after equipment detects there to be the gas leakage, can trigger mechanical locking mechanism, must local manual or remote control, remove the locking, the gas valve can be opened, admit air connecting pipe 2 and the inside and outside of the connecting pipe 3 of giving vent to anger all are equipped with the screw thread. The inner chamber lower part fixedly connected with gas meter motor valve 4 of connecting pipe 2 admits air, and gas meter motor valve 4 adopts current motor valve on the market, the inner chamber upper portion of device casing 1 is connected with little differential pressure sensor 5 and pressure sensor 6 respectively, and little differential pressure sensor 5 and pressure sensor 6 all adopt current sensor on the market, the lower part fixedly connected with flow measuring device 7 of connecting pipe 3 of giving vent to anger, flow measuring device 7 adopt current gas flow measuring device on the market, flow measuring device 7's import is equipped with the solenoid valve. Flow measuring device 7 is through 8 connection thing allies oneself with netlist integrating instrument 9 of detection button, and thing allies oneself with netlist integrating instrument 9 adopts existing equipment on the market, and thing allies oneself with netlist integrating instrument 9 is the well accuse equipment of equipment, gas meter motor valve 4 and networking table integrating instrument 9 are all through switch external power supply, little differential pressure sensor 5 and pressure sensor 6 are all through switch connection thing allies oneself with netlist integrating instrument 9, are equipped with audible-visual annunciator on the thing allies oneself with netlist integrating instrument 9 for when detecting data anomaly, report to the police.
During operation, the detection button 8 is pressed, and under normal conditions (if the local atmospheric pressure is 101Kpa and the gas pressure is 2-3Kpa), the gas meter flow measuring device 7 preliminarily judges that no gas equipment uses gas (the flow is less than the initial flow), the measured micro differential pressure sensor 5 has a value of zero or close to zero, the pressure sensor 6 has a pressure sensor range of 102 and 105Kpa, and differential pressure and pressure data are stored. And closing the motor valve 4 of the gas meter after the testing conditions are met, starting timing, testing a group of differential pressure and absolute pressure every 10 seconds, collecting for 5 minutes in total, and then calculating and determining the micro-leakage condition according to the change values of the differential pressure and the absolute pressure.
If there is no leakage in the piping and equipment behind the meter, the micro differential pressure sensor 5 should be zero or close to zero before the valve is closed, while the pressure sensor 6 data should remain substantially unchanged from 102 Kpa to 105Kpa,
if there is leakage at the back end, the data of the pressure sensor 6 is reduced, the value of the micro differential pressure sensor 5 is increased, and the leakage rate can be estimated according to the rate and the size and the length of the pipeline.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Intelligent detection thing networking gas table is revealed to online, including device casing (1), its characterized in that: the device is characterized in that the upper end left and right sides of the device shell (1) are fixedly connected with an air inlet connecting pipe (2) and an air outlet connecting pipe (3), the inner cavity lower part of the air inlet connecting pipe (2) is fixedly connected with a gas meter motor valve (4), the inner cavity upper part of the device shell (1) is respectively connected with a micro differential pressure sensor (5) and a pressure sensor (6), the lower part of the air outlet connecting pipe (3) is fixedly connected with a flow measuring device (7), and the flow measuring device (7) is connected with a net list integrating instrument (9) through a detection button (8).
2. The online leakage intelligent detection Internet of things gas meter according to claim 1, characterized in that: the gas meter motor valve (4) and the networking meter integrating instrument (9) are externally connected with a power supply through a switch, and the micro differential pressure sensor (5) and the pressure sensor (6) are connected with the networking meter integrating instrument (9) through the switch.
3. The online leakage intelligent detection Internet of things gas meter according to claim 1, characterized in that: the device shell (1) is a rigid sealing shell.
4. The online leakage intelligent detection Internet of things gas meter according to claim 1, characterized in that: and the inner side and the outer side of the air inlet connecting pipe (2) and the air outlet connecting pipe (3) are both provided with threads.
5. The online leakage intelligent detection Internet of things gas meter according to claim 1, characterized in that: an inlet of the flow measuring device (7) is provided with an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950744.5A CN111947858A (en) | 2020-09-11 | 2020-09-11 | Online intelligent detection Internet of things gas meter with leakage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950744.5A CN111947858A (en) | 2020-09-11 | 2020-09-11 | Online intelligent detection Internet of things gas meter with leakage function |
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| Publication Number | Publication Date |
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| CN111947858A true CN111947858A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010950744.5A Pending CN111947858A (en) | 2020-09-11 | 2020-09-11 | Online intelligent detection Internet of things gas meter with leakage function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484292A (en) * | 2021-12-20 | 2022-05-13 | 天信仪表集团有限公司 | Combustible gas monitoring device and method |
| CN115019479A (en) * | 2022-02-22 | 2022-09-06 | 深圳市朗鑫智能科技有限公司 | Method and system for processing gas leakage by using gas detection alarm |
| CN115560921A (en) * | 2022-08-12 | 2023-01-03 | 荣成市宇翔实业有限公司 | Method for monitoring gas leakage, method for detecting abnormal installation and gas meter |
| CN114484292B (en) * | 2021-12-20 | 2024-05-10 | 天信仪表集团有限公司 | Combustible gas monitoring device and method |
-
2020
- 2020-09-11 CN CN202010950744.5A patent/CN111947858A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484292A (en) * | 2021-12-20 | 2022-05-13 | 天信仪表集团有限公司 | Combustible gas monitoring device and method |
| CN114484292B (en) * | 2021-12-20 | 2024-05-10 | 天信仪表集团有限公司 | Combustible gas monitoring device and method |
| CN115019479A (en) * | 2022-02-22 | 2022-09-06 | 深圳市朗鑫智能科技有限公司 | Method and system for processing gas leakage by using gas detection alarm |
| CN115560921A (en) * | 2022-08-12 | 2023-01-03 | 荣成市宇翔实业有限公司 | Method for monitoring gas leakage, method for detecting abnormal installation and gas meter |
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