CN113029471A

CN113029471A - Intelligent gas pressure measuring method and device based on Internet of things

Info

Publication number: CN113029471A
Application number: CN202110206260.4A
Authority: CN
Inventors: 曾文勇; 宋柳; 陈雪华; 陈锐潮; 宗杰文; 何海萍; 李伟棠
Original assignee: Foshan Sanshui Gas Co ltd
Current assignee: Foshan Sanshui Gas Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-25

Abstract

The invention discloses an intelligent gas pressure measuring method and device based on the Internet of things; this pressure measurement method passes through the sensor in order to collect the gas instantaneous flow, then the result through instantaneous flow, close the valve again, open the valve, cooperation pressure test many times, with the gas pressure in the accurate gas pipeline that detects, thereby whether there is the leakage condition and the leakage degree in the accurate gas pipeline that detects, make the pressure measurement structure accurate, high reliability, and this pressure measurement device is through setting up the control motor, the sensor, whether there is gas leakage through the sensor real-time detection gas pipeline, then open or close according to the real-time automatic control ooff valve of data of sensor feedback through the control motor, with the cooperation gas pressure in the gas pipeline of accomplishing, the temperature, tests such as velocity of flow, overall structure is simple and practical, therefore, the clothes hanger is strong in practicability.

Description

Intelligent gas pressure measuring method and device based on Internet of things

Technical Field

The invention relates to the technical field of gas, in particular to an intelligent gas pressure measuring method and device based on the Internet of things.

Background

In city gas pipe network system, the gas pipeline uses a period of back, and the condition of leaking can appear in inevitable, nevertheless because gas pipeline is in large quantity, the staff can't learn the leakage department of gas pipeline fast in real time after appearing leaking, and can't learn the leakage degree of gas pipeline fast.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an intelligent gas pressure measuring method and a pressure measuring device based on the Internet of things, which have strong practicability.

In order to achieve the purpose, the scheme provided by the invention is as follows: an intelligent gas pressure measuring method based on the Internet of things comprises the following steps:

s1, collecting instantaneous gas flow data through a sensor, and if the instantaneous gas flow is detected to be generated, performing step S2;

s2, closing the switch valve for 4-6min, then opening the switch valve to collect instantaneous gas flow data, and if the instantaneous gas flow rises and then steadily drops to zero, performing step S3; if the instantaneous flow rate is instantly increased and not decreased, go to step S4;

s3, carrying out gas pressure test every 10-20s for 5 times continuously, and if the gas pressure does not decrease, judging that the gas pipeline system has no leakage; if the gas pressure drops, the step S2 is carried out again;

s4, carrying out gas pressure test every 4-6min for 3 times continuously, and if the pressure drop condition occurs for 1-2 times, carrying out step S5; if the pressure drop condition occurs for 3 times, judging that the gas pipeline system has leakage;

s5, after 8-12min, carrying out pressure test again, and if the gas pressure does not decrease, judging that the gas pipeline system has no leakage; and if the gas pressure is reduced, judging that the gas pipeline system has leakage.

The invention has the beneficial effects that: the pressure measuring method comprises the steps of collecting instantaneous gas flow through a sensor, closing a valve, opening the valve and matching with multiple pressure tests to accurately detect gas pressure in a gas pipeline through instantaneous flow results, so that whether the gas pipeline has leakage conditions and leakage degree or not is accurately detected, and the pressure measuring structure is accurate and high in reliability.

Further, the leakage degree of the gas pipeline is judged through the tested gas pressure depressurization rate.

Further, in step S2, after closing the on-off valve for 5min, opening the on-off valve again to collect instantaneous gas flow data.

Further, in step S3, a gas pressure test is performed every 15 seconds.

Further, in step S4, a gas pressure test is performed every 5 min.

Further, in step S5, after every 10min, another pressure test is performed.

The utility model provides a based on thing networking intelligence gas pressure measurement device, is including setting up ooff valve, the sensor in the gas pipeline and setting up the pressure regulating box on the gas pipeline lateral wall, be provided with power, control motor in the pressure regulating box, control motor drives the ooff valve and opens or close the gas pipeline, the sensor sets up in the low reaches of ooff valve, power connection control motor and sensor respectively. This pressure measurement device is through setting up control motor, sensor, through sensor real-time detection gas pipeline whether have gas leakage, then through opening or closing of the real-time automatic control ooff valve of data according to the sensor feedback of control motor to the test such as gas pressure, temperature, velocity of flow in the gas pipeline is accomplished in the cooperation, overall structure is simple and practical, and the practicality is strong, need not too much operation.

Further, still be provided with the manometer in the pressure regulating box, the manometer is connected the sensor, pressure regulating box lateral wall is seted up and is used for observing the data on the manometer in having the observation window. After the structure is adopted, the gas detection data are collected and observed in real time.

Further, the manometer is electron manometer, the power connection the manometer. After the structure is adopted, the gas detection numerical value is accurately displayed.

Further, the power is a nickel-metal hydride battery, the switch valve is a ball valve, the sensor is a combined function sensor, and the sensor is used for detecting pressure, temperature and flow in a gas pipeline.

Further, a filter is arranged in the gas pipeline and is positioned at the upstream of the switch valve. After the structure is adopted, the gas filter is used for filtering impurities in a gas pipeline so as to prevent the impurities from passing through the switch valve.

Drawings

Fig. 1 is a flow chart of the pressure measuring method of the present invention.

Fig. 2 is a schematic view of the connection between the pressure measuring device and the gas pipeline according to the present invention.

Fig. 3 is a schematic structural view of the pressure measuring device of the present invention.

Wherein, 1 is the gas pipeline, 11 is the ooff valve, 12 is the sensor, 13 is the filter, 2 is the pressure regulating box, 21 is the power, 22 is the control motor, 23 is the manometer, 24 is the observation window.

Detailed Description

The invention will be further illustrated with reference to specific examples:

referring to the attached drawing 1, the intelligent gas pressure measuring method based on the Internet of things comprises the following steps:

s1, collecting instantaneous gas flow data through a sensor 12, and if detecting that the instantaneous gas flow is generated, performing step S2;

s2, after the switching valve is closed for 114-6min, the switching valve 11 is opened again to collect instantaneous gas flow data, and if the instantaneous gas flow rises but then steadily drops to zero, the step S3 is carried out; if the instantaneous flow rate is instantly increased and not decreased, go to step S4;

In step S2, after the on-off valve is closed for 115min, the on-off valve 11 is opened again to collect instantaneous gas flow data: in step S3, a gas pressure test is performed every 15 seconds; in step S4, carrying out a gas pressure test every 5 min; in step S5, after every 10min, a pressure test is performed again.

Referring to fig. 2 to 3, an intelligence gas pressure measurement device based on thing networking, including set up ooff valve 11, sensor 12 in gas pipeline 1 and set up pressure regulating box 2 on gas pipeline 1 lateral wall, be provided with power 21, control motor 22 in the pressure regulating box 2, control motor 22 drives ooff valve 11 and opens or close gas pipeline 1, and sensor 12 sets up in ooff valve 11's low reaches, and power 21 connects control motor 22 and sensor 12 respectively.

The pressure regulating box 2 is also internally provided with a pressure gauge 23, the pressure gauge 23 is connected with the sensor 12, the outer side wall of the pressure regulating box 2 is provided with an observation window 24 for observing data on the pressure gauge 23, the pressure gauge 23 is an electronic pressure gauge 23, and the power supply 21 is connected with the pressure gauge 23.

The power supply 21 is a nickel-metal hydride battery, the switch valve 11 is a ball valve, the sensor 12 is a combined function sensor 12, the sensor 12 is used for detecting the pressure, the temperature and the flow in the gas pipeline 1, a filter 13 is further arranged in the gas pipeline 1, and the filter 13 is positioned at the upstream of the switch valve 11.

In this embodiment, the gas pipeline 1 is arranged in the above-ground building gas main pipe, and a controller and a signal transceiver can be arranged in the pressure regulating box 2, and a pressure measuring small program capable of operating the controller is designed on a WeChat small program of the mobile phone, the controller is controlled through the pressure measuring small program, so that the controller controls the control motor 22 to open or close the switch valve 11, then the gas pressure measurement can be automatically carried out in real time according to data transmitted by the sensor 12, and the pressure measurement result is transmitted to the pressure measuring small program to be remotely obtained by a user, so that the field pressure measurement is not needed, the remote pressure measurement can be carried out, and the pressure measurement of the gas pipeline 1 through the internet of things is realized.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes and modifications to the disclosed embodiments, or modify equivalent embodiments to practice the disclosed embodiments, without departing from the scope of the disclosed embodiments. Therefore, equivalent variations made according to the idea of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical solution of the present invention.

Claims

1. an intelligent gas pressure measurement method based on the Internet of Things, characterized in that: comprising the following steps:

S1. Collect instantaneous gas flow data through the sensor (12), and if it is detected that an instantaneous flow is generated, proceed to step S2;

S2. After closing the on-off valve (11) for 4-6 minutes, then open the on-off valve (11) to collect the instantaneous gas flow data. If the instantaneous flow increases but then drops steadily to zero, proceed to step S3; if the instantaneous flow increases instantaneously and does not drop , then go to step S4;

S3. Carry out a gas pressure test every 10-20s, and continuously carry out 5 gas pressure tests. If there is no gas pressure drop, it is determined that there is no leakage in the gas pipeline system; if there is a gas pressure drop, perform step S2 again;

S4. Carry out a gas pressure test every 4-6 minutes, and continuously carry out 3 gas pressure tests. If there are 1-2 pressure drops, go to step S5; if there are 3 pressure drops, it is determined that the gas pipeline system exists. leakage;

S5. After an interval of 8-12 minutes, perform a pressure test again. If there is no gas pressure drop, it is determined that there is no leakage in the gas pipeline system; if there is a drop in gas pressure, it is determined that there is a leak in the gas pipeline system.

2. A method for intelligent gas pressure measurement based on the Internet of Things according to claim 1, characterized in that: in the step S2, after closing the on-off valve (11) for 5 minutes, then open the on-off valve (11) to collect the instantaneous gas flow data.

3 . The method for intelligent gas pressure measurement based on the Internet of Things according to claim 1 , wherein in the step S3 , a gas pressure test is performed every 15s. 4 .

4 . The method for intelligent gas pressure measurement based on the Internet of Things according to claim 1 , wherein in the step S4 , a gas pressure test is performed every 5 minutes. 5 .

5 . The method for intelligent gas pressure measurement based on the Internet of Things according to claim 1 , wherein in the step S5 , after an interval of 10 minutes, a pressure test is performed again. 6 .

6. An IoT-based intelligent gas pressure measuring device according to claim 1, comprising an on-off valve (11), a sensor (12) arranged in the gas pipeline (1), and an on-off valve (12) arranged on the outer wall of the gas pipeline (1) The pressure regulating box (2) above is characterized in that: the pressure regulating box (2) is provided with a power supply (21) and a control motor (22), and the control motor (22) drives the on-off valve (11) to open or The gas pipeline (1) is closed, the sensor (12) is arranged downstream of the on-off valve (11), and the power supply (21) is respectively connected to the control motor (22) and the sensor (12).

7. An IoT-based intelligent gas pressure measuring device according to claim 6, characterized in that: a pressure gauge (23) is further provided in the pressure regulating box (2), and the pressure gauge (23) is connected to The sensor (12) and the outer wall of the pressure regulating box (2) are provided with an observation window (24) for observing the data on the pressure gauge (23).

The intelligent gas pressure measuring device based on the Internet of Things according to claim 7, characterized in that: the pressure gauge (23) is an electronic pressure gauge (23), and the power supply (21) is connected to the pressure gauge (twenty three).

The intelligent gas pressure measuring device based on the Internet of Things according to claim 6, characterized in that: the power source (21) is a nickel-metal hydride battery, the on-off valve (11) is a ball valve, and the sensor (12) ) is a combined function sensor (12), the sensor (12) is used to detect the pressure, temperature and flow in the gas pipeline (1).

10. The intelligent gas pressure measuring device based on the Internet of Things according to claim 6, characterized in that: a filter (13) is further arranged in the gas pipeline (1), and the filter (13) is located in the switch upstream of valve (11).