CN212960935U

CN212960935U - Natural gas leakage alarm device

Info

Publication number: CN212960935U
Application number: CN202021159871.5U
Authority: CN
Inventors: 孔祥林; 杨伟标; 腾松成
Original assignee: Zhejiang Friendship New Material Co Ltd
Current assignee: Zhejiang Friendship New Material Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-13
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a natural gas leakage alarm device, which is provided with a plurality of numbered gas sensors, can judge the leakage of the position of a plurality of pipelines by observing the concentration information of each gas sensor, and is beneficial to fast investigation and maintenance; and the plurality of gas sensors are wirelessly connected with the signal input module, so that the gas sensor is not limited by a line and can be conveniently arranged at any position where gas leakage is easy to occur. The key points of the technical scheme are as follows: the gas sensor alarm device comprises a main controller, a plurality of gas sensors and an alarm mechanism, wherein the main controller comprises a control circuit board, a signal input module, a signal output module and a communication module; the gas sensors are provided with numbers, the numbers of the gas sensors are different, and the gas sensors are wirelessly connected with the signal input module; the alarm mechanism is connected with the signal output module in a wired or wireless way; the signal input module, the signal output module and the communication module are all electrically connected with the control circuit board.

Description

Natural gas leakage alarm device

Technical Field

The utility model relates to a gas leakage alarm field specifically is a natural gas leakage alarm device.

Background

Natural gas is a good fuel widely used in modern industry and life, has large combustion heat, density less than air, water insolubility, colorless, tasteless and nontoxic characteristics, and has huge natural gas consumption in industrial production. Once a leak occurs, very serious consequences should occur.

The natural gas alarm is an instrument for detecting and alarming natural gas leakage, and can send out an alarm signal when the leakage concentration of the natural gas reaches the critical point of explosion or poisoning. However, the existing natural gas alarm has the following defects:

1. the existing natural gas alarm detects the concentration of natural gas in a space, and when pipelines or valves are more, the position of the pipeline or which valve is leaked cannot be determined, so that rapid inspection and maintenance cannot be carried out.

2. The existing natural gas alarm is difficult to install at any position of a factory or a workshop due to the limitation of a line, so that some positions which are easy to leak are difficult to detect in time, when the positions are detected, the concentration of leaked natural gas is probably far greater than the safety concentration, and the probability of safety accidents is increased; in addition, due to the fact that the workshop temperature is too high, the electric wires are easily damaged, and the danger of short circuit and electric shock is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a natural gas leakage alarm device, which is provided with a plurality of numbered gas sensors, can judge the leakage of the position of a plurality of pipelines by observing the concentration information of each gas sensor, and is beneficial to fast investigation and maintenance; and the plurality of gas sensors are wirelessly connected with the signal input module, so that the gas sensor is not limited by a line and can be conveniently arranged at any position where gas leakage is easy to occur.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a natural gas leakage alarm device comprises a main controller, a plurality of gas sensors and an alarm mechanism, wherein the main controller comprises a control circuit board, a signal input module, a signal output module and a communication module; the gas sensors are provided with numbers, the numbers of the gas sensors are different, and the gas sensors are wirelessly connected with the signal input module; the alarm mechanism is in wired or wireless connection with the signal output module; the signal input module, the signal output module and the communication module are all electrically connected with the control circuit board.

Preferably, the alarm mechanism comprises at least one signal light and at least one speaker.

Preferably, the gas sensor is connected with the signal input module by a local area network.

Preferably, the alarm mechanism is connected with the signal output module in a local area network mode.

Preferably, the main controller is provided with a user terminal which accesses the local network through the local gateway with the communication module to establish a connection.

Preferably, the user terminal comprises a local terminal and a remote terminal, the remote terminal comprises a notebook computer and a smart phone, and the communication module and the remote terminal are both connected to the internet in a wired or wireless manner.

Preferably, the remote terminal is provided with an APP or an applet for monitoring the natural gas leakage condition.

Preferably, the signal output module is provided with signal lines with the same number as the gas sensors, the signal lines are connected to valves of the natural gas pipeline, and each signal line corresponds to one valve.

Compared with the prior art, the natural gas leakage alarm device adopting the technical scheme has the following beneficial effects:

one, adopt the utility model discloses a natural gas leakage alarm device is equipped with a plurality of gas sensor that have the number, can settle near the pipeline valve of difference with the gas sensor that the number is different, and every gas sensor corresponds a valve, numbers the valve simultaneously, judges specific which position to take place to leak through observing every gas sensor's concentration information, can long-range valve of closing leakage pipeline, quick investigation and maintenance.

Secondly, by adopting the natural gas leakage alarm device, the plurality of gas sensors are wirelessly connected with the signal input module, thereby solving the defect that the circuit is limited by the environment and being conveniently arranged at any position where gas leakage is easy to occur; and the wireless connection can avoid the problem that the circuit is damaged due to high temperature, and prevent the failure of the alarm device.

Thirdly, adopt the utility model discloses a natural gas leakage alarm device, through the mode that local terminal and remote terminal combined together, the workman can monitor the natural gas leakage condition on the spot with off-site simultaneously, and local terminal and remote terminal can all be through opening and close of each valve of main control unit control, and whether the workman can all close the valve the very first time when the natural gas leaks under the condition on the spot.

In the preferred scheme, the remote terminal is provided with an APP or an applet for monitoring the natural gas leakage condition, so that the operation is simpler and more convenient, and the APP or the applet can also actively send prompt information to the user, thereby being beneficial to rapidly prompting the user when the natural gas leaks.

Drawings

Fig. 1 is a schematic structural view of the natural gas leakage alarm device of the present invention.

Fig. 2 is a schematic structural diagram of the main controller in this embodiment.

Fig. 3 is a schematic structural diagram of the gas sensor in this embodiment.

Fig. 4 is a schematic structural diagram of the valve in this embodiment.

Fig. 5 is a schematic structural diagram of the alarm mechanism in this embodiment.

Reference numerals: 1. a main controller; 10. a control circuit board; 11. a signal input module; 12. a signal output module; 13. a communication module; 2. a gas sensor; 20. numbering; 3. an alarm mechanism; 30. a signal lamp; 31. a speaker; 4. a valve; 5. a local terminal; 6. a remote terminal; 7. the internet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The natural gas leakage alarm device shown in fig. 1 and 2 comprises a main controller 1, three gas sensors 2 and an alarm mechanism 3, wherein the main controller 1 comprises a control circuit board 10, a signal input module 11, a signal output module 12 and a communication module 13, the signal input module 11, the signal output module 12 and the communication module 13 are all electrically connected with the control circuit board 10, and the signal output module 12 of the main controller 1 is connected to three valves 4.

As shown in fig. 3 to 5, the gas sensors 2 are provided with numbers 20, the numbers 20 of the three gas sensors 2 are (i), (ii) and (iii), and the three gas sensors 2 are wirelessly connected with the signal input module 11; the signal output module 12 is further connected with three signal wires, the three signal wires are respectively connected to three valves 4 of the natural gas pipeline, each valve 4 is also provided with a number 20, and the numbers 20 on the three valves 4 are respectively (i), (ii) and (iii). When the gas sensor 2 is installed, the gas sensor 2 with the same number 20 as the valve 4 is arranged near the valve 4 or near a pipeline where the valve 4 is located, and when leakage occurs, if the natural gas concentration detected by a certain gas sensor 2 is too high, the leakage occurs at the pipeline or the valve 4 corresponding to the gas sensor 2.

The alarm mechanism 3 is connected with the signal output module 12 by wire, and the alarm mechanism 3 comprises a signal lamp 30 and a loudspeaker 31.

The main controller 1 is provided with a user terminal, the user terminal comprises a local terminal 5 and a remote terminal 6, and the local terminal 5 and the communication module 13 are accessed to a local network through a local gateway to establish connection; the remote terminal 6 comprises a notebook computer and a smart phone, the notebook computer, the smart phone and the communication module 13 are all connected to the internet 7, and application programs for monitoring the natural gas leakage condition are installed on the notebook computer and the smart phone.

The specific operation steps (taking natural gas leakage at the valve 4 of the first model as an example):

1. firstly, natural gas at the valve 4 leaks, firstly, the gas sensor 2 detects that the concentration of the nearby natural gas is increased, and concentration information is transmitted to the control circuit board 10 through the signal input module 11;

2. the control circuit board 10 sends a signal to the valve 4 and the alarm mechanism 3 through the signal output module 12, the valve 4 is closed, meanwhile, a signal lamp 30 of the alarm mechanism 3 flickers, and a loudspeaker 31 gives an alarm sound;

3. the step is carried out simultaneously with the step 2, the control circuit board 10 transmits a signal to the local terminal 5 or the remote terminal 6 through the communication module 13, if the remote terminal 6 is a smart phone, an application program for monitoring the natural gas leakage condition in the smart phone gives a message prompt to a user to inform the user of the natural gas leakage condition, and then inspectors and maintenance personnel are assigned to go to the site; in addition, the user can open an application program at any time to monitor the concentration measured by each gas sensor 2 and actively control the opening and closing of each valve 4.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a natural gas leakage alarm device which characterized in that: the gas sensor alarm device comprises a main controller (1), a plurality of gas sensors (2) and an alarm mechanism (3), wherein the main controller (1) comprises a control circuit board (10), a signal input module (11), a signal output module (12) and a communication module (13); the gas sensors (2) are provided with numbers (20), the numbers (20) of the gas sensors (2) are different, and the gas sensors (2) are in wireless connection with the signal input module (11); the alarm mechanism (3) is in wired or wireless connection with the signal output module (12); the signal input module (11), the signal output module (12) and the communication module (13) are all electrically connected with the control circuit board (10).

2. The natural gas leakage warning device according to claim 1, wherein: the warning device (3) comprises at least one signal light (30) and at least one loudspeaker (31).

3. The natural gas leakage warning device according to claim 1, wherein: the gas sensor (2) is connected with the signal input module (11) in a local area network mode.

4. The natural gas leakage warning device according to claim 1, wherein: the alarm mechanism (3) is connected with the signal output module (12) in a local area network mode.

5. The natural gas leakage warning device according to claim 1, wherein: the main controller (1) is equipped with a user terminal which accesses the local network through a local gateway with a communication module (13) to establish a connection.

6. The natural gas leakage warning device according to claim 5, wherein: the user terminal comprises a local terminal (5) and a remote terminal (6), the remote terminal (6) comprises a notebook computer and a smart phone, and the communication module (13) and the remote terminal (6) are both connected to the internet (7) in a wired or wireless mode.

7. The natural gas leakage warning device according to claim 1, wherein: the signal output module (12) is provided with signal lines the number of which is the same as that of the gas sensors (2), the signal lines are connected to the valves (4) of the natural gas pipeline, and each signal line corresponds to one valve (4).