CN217482549U

CN217482549U - Gas riser leak hunting device

Info

Publication number: CN217482549U
Application number: CN202123387353.6U
Authority: CN
Inventors: 倪旭
Original assignee: DONGBEN ELECTRICAL TECHNOLOGY (SUZHOU) CO LTD
Current assignee: DONGBEN ELECTRICAL TECHNOLOGY (SUZHOU) CO LTD
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-09-23
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a gas riser leak hunting device, include: a riser Internet of things valve for detecting the fuel gas flow of the riser; an Internet of things valve for each household for detecting the gas flow; the data processing device receives the data of the Internet of things valve of the home and calculates the sum Me of the flow rates of L1, L2 and L3 … … Ln; receiving data M of a riser Internet of things valve; and comparing the M with the Me in real time, and if the M is larger than the Me, sending an air leakage early warning signal. The method comprises the steps of simultaneously detecting flow data M of a vertical pipe and flow data Ln of each household branch pipe of the vertical pipe, calculating the flow sum Me of Ln, comparing the M with the Me, if M is larger than Me, indicating the possibility of air leakage (or air theft), sending out an early warning signal, informing maintenance personnel to check and maintain, adopting a modern material network valve with data acquisition and wireless transmission, realizing real-time remote data acquisition, needing no manual regular inspection, and overcoming the problems that the inspection period of the prior art is long, hidden dangers cannot be found in time, the inspection of the vertical pipe is difficult and the like.

Description

Gas riser leak hunting device

Technical Field

The utility model relates to a gas monitoring technology field especially relates to a gas riser leak hunting device.

Background

Gas is a resource widely used in industry, business and family, but in gas transportation or gas use, the condition of gas leakage can occur, if the gas leakage is not monitored in time and the alarm reminding is carried out on related personnel, the problem of potential personal and property safety hazards can be caused. Therefore, how to timely and effectively monitor and alarm the gas leakage becomes a technical problem to be solved urgently. Especially, install the gas delivery riser on the facade outside the building, it is very troublesome to detect, and the detection cycle is long, can't do the real-time to generally adopt handheld instrument to detect, it is consuming time hard, and can only accomplish the screening of joint department, can't accomplish comprehensive detection.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a gas riser leak hunting device, include:

a riser Internet of things valve for detecting the gas flow of the riser;

the home-entering Internet of things valve detects the gas flow rates L1, L2 and L3 … … Ln of each household entering the home through the riser;

the data processing device receives the data of the Internet of things valve of the home and calculates the sum Me of the flow rates of L1, L2 and L3 … … Ln; receiving riser Internet of things valve data M; and comparing the M with the Me in real time, and if the M is larger than the Me, sending an air leakage early warning signal.

The method comprises the steps of simultaneously detecting flow data M of a vertical pipe 2 and flow data Ln of each household branch pipe 4 of the vertical pipe 2, calculating the flow sum Me of the Ln, comparing the M with the Me, if the M is larger than the Me, indicating the possibility of air leakage (or air theft), sending an early warning signal, informing maintenance personnel to check and maintain, adopting a modern material network valve with data acquisition and wireless transmission, realizing real-time remote data acquisition, needing no manual regular inspection, and overcoming the problems that the inspection period is long, hidden dangers cannot be found in time, the inspection of the vertical pipe is difficult and the like in the prior art.

Further, the gas riser leak detection device further comprises a remote control device, wherein the remote control device is used for closing an internet of things valve of each household entering the household through the riser, so that the gas flow of each household is zero, namely Me is 0, and L1, L2 and L3 … … Ln are zero; meanwhile, the data processing device receives the reading of the riser Internet of things valve M, and if M is greater than 0, an air leakage early warning signal is sent out.

And further, the system also comprises a communication device, the communication device sends the gas-off early warning information S to the corresponding user before closing the home-in Internet of things valve of each home entered through the riser, receives and checks a gas-off early warning information receipt S1 of the user, and if the receipt information is 0, the remote control device is instructed to close the home-in Internet of things valve.

Furthermore, the gas appliance temperature control system also comprises a temperature sensor arranged on each gas appliance, and the temperature sensors send temperature signals to the remote control device and the data processing device. And detecting the temperature Tn and/or the gas flow Ln of all gas-using equipment passing through the vertical pipe, executing S1 when Tn is less than a set value and Ln is 0, and sending a gas leakage early warning signal if M is greater than 0.

Drawings

FIG. 1 is a block diagram of the gas riser leak detection device of the present invention;

fig. 2 is a schematic diagram of the leak detection method of the gas riser of the present invention.

Detailed Description

The technical solution of the present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.

As shown in fig. 1 and fig. 2, a leak detection method for a gas riser comprises the following steps:

s1, detecting the gas flow M of the vertical pipe;

s2, detecting the gas flow L1, L2 and L3 … … Ln of each household through the vertical pipe;

s3, calculating the sum Me of the flow rates of L1, L2 and L3 … … Ln;

and S4, comparing M with Me in real time, and if M is greater than Me, sending an air leakage early warning signal.

In some embodiments, the step S2 further includes the step S21 of closing the service internet of things valves R1, R2, R3 … … Rn of each service that is served via the riser, so that the gas flow rates L1, L2, L3 … … Ln of each service are all zero, i.e., Me ═ 0; reading M at the moment, and if M is greater than 0, sending out an air leakage early warning signal. In order to ensure the accuracy of data during detection, the household Internet of things valves on all household branch pipes 4 are closed, the leakage detection range can be reduced to the vertical pipe 2, and if an air leakage early warning signal occurs, the investigation range can be reduced, and the aim of accelerating the maintenance speed is fulfilled.

In order not to affect the gas consumption of the user, the step S21 sets the time for closing the internet of things valve of each user as the unmanned gas consumption time, that is, Me is 0. The local air-off detection can be set at midnight unmanned air time generally, and the periodic detection can be carried out between 2-4 points in the morning, for example. The air-out range can be adopted, each vertical pipe is taken as a unit, the vertical pipes are detected one by one according to the minimum detection time, when Me corresponding to one vertical pipe is zero, the home-in Internet of things valve on the vertical pipe can be closed for a short time, the M reading is detected at the same time, and ventilation can be recovered after judgment. If the time for reading M is in the second level, then, on the premise that the corresponding user of the stand pipe does not use gas, local gas stop detection is carried out, the influence on the user is almost zero, the leak detection operation of each stand pipe can be flexibly arranged, the whole pipe network is more intelligent, firstly, the number of the stand pipes is large, the prior art cannot pre-judge which stand pipe does not use gas for the user at the moment, and therefore gas stop detection without influence cannot be achieved, gas stop notification can be arranged according to the area in advance, forced gas stop detection is carried out by taking the area as a unit, and great influence is caused on the user.

For more humanization and intellectualization, the gas-off early warning information S is sent to the corresponding user before the home-in Internet of things valve of each home entering the home through the vertical pipe is closed. Because the user does not use gas in the period, and the gas stop time corresponding to each vertical pipe is very short, the user only needs to slightly delay to use gas, and the right of awareness of the user can be ensured on the premise that the influence on the user is almost zero.

For some specific users, for example, some production equipments must use gas at a specific time, a step of checking the gas stopping warning information response piece S1 of the user may be added, if the response pieces are all 0, then S21 is executed. If the receipt is 1, which represents that the gas is needed in the time interval, the detection time of the stand pipe is delayed, and the gas leakage detection operation of the stand pipe is executed until the next time the receipt information is 0.

For further accurate detection, the temperature Tn and/or the gas flow Ln of all gas appliances via the riser pipe may be detected, when Tn is less than a set value and Ln is equal to 0, S1 is executed, and if M >0, a gas leakage warning signal is sent out. For the users with the temperature values of small temperature under the condition of normal minimum firepower, the gas utilization equipment is judged not to be started at the moment, data analysis can be carried out by collecting temperature change data, and finally, the time rule that the vertical pipe does not use gas at the time when all the users correspond to the vertical pipe is obtained, so that the gas stopping detection time is arranged more scientifically. The temperature and the flow are detected simultaneously, and the fuel gas leakage during flameout can be found in time and is alarmed and disposed in time.

The utility model also provides a gas riser leak hunting device, include:

a riser Internet of things valve for detecting the gas flow of the riser;

the household Internet of things valve detects the gas flow rate L1, L2 and L3 … … Ln of each household through the vertical pipe;

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A gas riser leak detection apparatus, comprising:

a riser Internet of things valve for detecting the fuel gas flow of the riser;

the data processing device receives the data of the Internet of things valve of the home and calculates the sum Me of the flow rates of L1, L2 and L3 … … Ln; receiving data M of a riser Internet of things valve; and comparing the M with the Me in real time, and if the M is larger than the Me, sending an air leakage early warning signal.

2. The gas riser leak detection apparatus of claim 1, further comprising a remote control for closing a home-entry internet of things valve for each household that is home-entered via the riser such that gas flow rates L1, L2, L3 … … Ln for each household are zero, i.e., Me is 0; meanwhile, the data processing device receives the reading of the riser Internet of things valve M, and if M is greater than 0, an air leakage early warning signal is sent out.

3. The gas riser leak detection apparatus according to claim 2, further comprising a communication device, wherein the communication device sends a gas-off warning message S to a corresponding user before closing the in-house internet of things valve of each user who enters the house through the riser, receives and checks a gas-off warning message receipt S1, and instructs the remote control device to close the in-house internet of things valve if the receipt messages are all 0.

4. The gas riser leak detection apparatus according to any one of claims 1 to 3, further comprising a temperature sensor provided on each gas appliance, the temperature sensor sending a temperature signal to the remote control device and the data processing device; and detecting the temperature Tn and/or the fuel gas flow Ln of all gas appliances passing through the stand pipe, executing S1 when Tn is smaller than a set value and Ln is equal to 0, and if M is larger than 0, sending a gas leakage early warning signal.