CN110415492A - City integrated piping lane natural gas alarm system based on Internet of Things - Google Patents
City integrated piping lane natural gas alarm system based on Internet of Things Download PDFInfo
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- CN110415492A CN110415492A CN201910582844.4A CN201910582844A CN110415492A CN 110415492 A CN110415492 A CN 110415492A CN 201910582844 A CN201910582844 A CN 201910582844A CN 110415492 A CN110415492 A CN 110415492A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Abstract
The city integrated piping lane natural gas alarm system based on Internet of Things that the invention discloses a kind of, including the survey meter control device being set in the fire compartment of combustion gas cabin, the monitoring center fan linkage being connect with survey meter control device signal control equipment and connect with survey meter control device signal.The combustable gas concentration in combustion gas cabin is detected by survey meter control device, and after combustable gas concentration is compared with preset critical concentration；When combustable gas concentration is more than or equal to critical concentration, survey meter control device scene issues alarm signal, and the combustable gas concentration of alarm signal and detection is transmitted to monitoring center, while the control fan linkage control equipment control supply and exhaust device starting of survey meter control device.So set, understanding can be made to situation in the first time that natural gas leaking occurs, and corresponding processing is made in time, so that the harmfulness of natural gas leaking is preferably minimized, improve the safety coefficient of pipe gallery.
Description
Technical field
The present invention relates to internet of things field more particularly to a kind of natural gas alarm system of city integrated piping lane, tools
Body is a kind of city integrated piping lane natural gas alarm system based on Internet of Things.
Background technique
Urban Underground pipe gallery, which refers to, combines in a variety of pipelines such as municipal administration, electric power, communication, combustion gas, water supply and drainage, heating power
One, in the intensive tunnel that the underground space of urban road is built, current World Developed Countries are generallyd use
Municipal engineering.Underground gas pipeline is transported in closed environment, have transportation cost is low, combustion gas losing quantity is small,
The features such as lower pipeline land area is small, environmental protection degree is high is that Urban Underground pipe gallery focuses the consruction on one of content.Due to
Gas pipeline has leakage, is damaged and the risks such as fire, and combustion gas, which encounters, is easy burning after open fire, so that explosion, after leakage
Gas band is toxic and causes a degree of pollution to environment, and especially in densely populated cities and towns, gas leakage accident is easily made
At social destruction and economy impact.Natural gas is included in pipe gallery and there are many disputes, once being included in piping lane, builds
If safety becomes the most important thing, particularly important especially for combustion gas storehouse combustible gas leak detection.From the safe shape of current social
Gesture angle is set out, and guarantees that operational management has become in Urban Underground pipe gallery relevant design gas pipeline under secure conditions
One of the most important content of concern.
Application No. is 2014108138683 patent applications, disclose a kind of family's natural gas alarm system, pass through difference
Flowmeter is set in gas of gas range pipeline and wall-hung boiler fuel gas pipeline, can to fuel gas pipeline carry out real-time monitoring, pass through by
Flowmeter, gas stove switch and wall-hung boiler switch are connect with logic judgment chip, can be by logic judgment chip to natural gas
Behaviour in service make accurate judgement, when both being opened using gas-cooker or wall-hung boiler, should be examined in fuel gas pipeline connected to it
Measure corresponding natural air flux, then be monitored to natural air flux, can accurate judgement natural gas use whether just
Often, without being limited only to incude this operating mode of the natural gas being dispersed into air using natural gas sensing device,
Judgement delay in general sensing device and space-constrained this drawback are effectively prevented, family's natural gas alarm system is made
System can start alarm system, and automatic self-closing gas pipeline in the first time that natural gas leaking occurs, and farthest protect
The safety of natural gas motorcar is demonstrate,proved.But family's natural gas alarm system be only to single family register one's residence fuel gas pipeline into
Row monitoring, is unable to monitor the gas condition before registering one's residence in combustion gas cabin.
Entitled " design of natural gas leaking alarm system " text is disclosed in " information-recording material ", this article is specially set
Count a kind of natural gas intelligent alarm system based on public telephone network.The system uses SPCE061A single-chip microcontroller single for control
Member, starts audio alert program to the perception of system exception using phone or loudspeaker, closes automatically further according to alarm condition
Natural gas line solenoid valve is closed, exhaust apparatus is opened simultaneously.The system is also that can only realize to natural gas leaking situation in family
Monitoring.
Entitled " discussion of pipe gallery Design of automatic fire alarm system " text, this article are disclosed in " monitoring and alarm "
The fire risk and feature for analyzing pipe gallery, give pipe gallery fire alarm system design thinking and design content,
In conjunction with certain pipe gallery project, describe conventional automatic fire alarm system, fire resistant doorsets monitoring system, automatic fire extinguishing system, can
The design scheme of combustion gas body fire alarm system.When this article is mainly that gas leakage leads to fire, the automatic alarm of fire is coped with
System, can not achieve gas leakage initial stage handles avoid fire in time, to reduce personal injury, reduces economic loss.
Summary of the invention
In order to overcome the shortcomings of that existing natural gas alarm system, the present invention provide a kind of based on the city integrated of Internet of Things
Piping lane natural gas alarm system, can find natural gas leaking in time, and control fan linkage control equipment controls the row of sending in time
Wind apparatus work avoids concentration of natural gas is excessively high from leading to fire, explosion, improves the safety coefficient of pipe gallery, realize comprehensive
Close the visualized management in the piping lane runtime.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: it is comprehensive to provide a kind of city based on Internet of Things
Piping lane natural gas alarm system is closed, including
Survey meter control device is set in the fire compartment of combustion gas cabin, for detecting, recording in the fire compartment of combustion gas cabin
Combustable gas concentration, and after the combustable gas concentration is compared with preset critical concentration, the comparison information that will be obtained
Output；
Fan linkage controls equipment, connect with the survey meter control device signal, is set to combustion gas cabin thing for controlling
Therefore the working condition of the supply and exhaust device in section subregion and adjacent sectors；
Monitoring center is connect with the survey meter control device signal, for receiving the survey meter control device output
Comparison information, and control according to the comparison information working condition of fan linkage control equipment；
When the comparison information is that the combustable gas concentration is more than or equal to the critical concentration, the survey meter control
Device scene issues alarm signal, and alarm signal and the combustable gas concentration of detection are transmitted to monitoring center, simultaneously
The survey meter control device controls the fan linkage control equipment and controls the supply and exhaust device starting.
As a further improvement of the present invention, the survey meter control device of single fire compartment is described including being set to
If several combustible gas probes, several combined aural and visual alarms in fire compartment and with several combustible gas probes,
The gas alarm control device that dry combined aural and visual alarm is connected with bus type.
As a further improvement of the present invention, it is used between the gas alarm control device of different fire compartments
RS485 bus mode is connected.
As a further improvement of the present invention, automatic alarm dress is provided in each described gas alarm control device
It sets, is arranged between the gas alarm control device and monitoring center of the number one fire compartment nearest from the monitoring center
There is intermediate relay, alarm signal is transmitted to monitoring center.
As a further improvement of the present invention, the gas alarm control device has touch display screen, including but unlimited
In the combustable gas concentration detected for real-time display combustible gas probe, warning message, history warning message is shown and work
Operation mode setting.
As a further improvement of the present invention, the combustible gas probe includes gas sensor, the fuel gas
Detector include gas sensor, for monitor in the combustible gas probe temperature sensor of temperature change and with institute
State the microprocessor of gas sensor and temperature sensor signal connection.
As a further improvement of the present invention, it is additionally provided with combined aural and visual alarm in each described combustible gas probe,
The combined aural and visual alarm has voice broadcast function.
As a further improvement of the present invention, the alarm system further includes and the survey meter control device and the wind
The automatic alarm system linkage controller of machine linkage control device signal connection, when combustable gas concentration is more than critical in combustion gas cabin
When concentration, the automatic alarm system linkage controller controls the supply and exhaust device starting.
As a further improvement of the present invention, the alarm system further includes and the survey meter control device and the wind
The emergency cut-off system of machine linkage control device signal connection, the emergency cut-off system includes being set to several fire compartments
Several emergency automatic shutoff valves；When combustable gas concentration is more than critical concentration in combustion gas cabin, several automatic cutting in emergency
Valve cuts off the valve of several fire compartments and controls the supply and exhaust device starting.
As a further improvement of the present invention, the emergency cut-off system has long-range remote control function.
The beneficial effects of the present invention are:
1, the comprehensive of pipe gallery, real-time online monitoring, real-time alert and intelligent protection be can be realized, piping lane is improved
The fast reaction and security ability of operational management；
2, gas alarm control device has touch screen human-computer interface, and with man-machine interface, friendly, easy to operate, performance can
The features such as leaning on, be versatile, and can carry out instrument according to live actual state and demand and show and process flow setting；
3, the parameter of gas alarm control device setting automatically saves, and data are not lost after power down, and gas alarm control
Device processed is in runnable interface using the letter such as number and each road gas detection concentration of Bar graphic display, each road gas detection state and alarm
Breath, which greatly simplifies the workloads of staff；
4, combustible gas probe being capable of intelligence using high-quality gas sensor, microprocessor combination precision temperature sensor
The drift of gas sensor can be compensated, environment adaptation range is wide, the operation is stable, without debugging, using ceiling mounting means, installation letter
It is single, easy-to-connect；
5, combined aural and visual alarm of the present invention is compared to having sound prompt function for more traditional combined aural and visual alarm, more
It is convenient and intelligent to add.
Detailed description of the invention
Fig. 1 is a kind of knot of city integrated one preferred embodiment of piping lane natural gas alarm system based on Internet of Things of the present invention
Structure schematic diagram；
Fig. 2 is the signal connection schematic diagram between multiple survey meter control devices in Fig. 1 in multiple fire compartments.
The components in the drawings are labeled as follows:
100, city integrated piping lane natural gas alarm system；10, survey meter control device；1011、…、101n、2011、…、
201n, combustible gas probe；1021、…、102n、2021、…、202n, combined aural and visual alarm；1031、…、103n, gas alarm
Control device；20, fan linkage controls equipment；30, monitoring center.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show the structure and/or processing step closely related with the solution of the present invention, and be omitted with relationship of the present invention less its
His details.
In addition, it should also be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element
It please refers to shown in Fig. 1 to Fig. 2, the city integrated piping lane natural gas alarm based on Internet of Things that the present invention provides a kind of
System 100, including survey meter control device 10, are set in the fire compartment of combustion gas cabin, for detecting, recording the fire prevention point of combustion gas cabin
Combustable gas concentration in area, and after the combustable gas concentration is compared with preset critical concentration, the ratio that will be obtained
It is exported compared with information；Fan linkage controls equipment 20, connect with 10 signal of survey meter control device, is set to combustion for controlling
The working condition of supply and exhaust device in gas cabin accident section subregion and adjacent sectors；Monitoring center 30 is controlled with the survey meter
The connection of 10 signal of device, the comparison information exported for receiving the survey meter control device 10, and according to the comparison information
Control the working condition of the fan linkage control equipment 20；When the comparison information is that the combustable gas concentration is more than or equal to
When the critical concentration, 10 scene of survey meter control device issues alarm signal, and will be described in alarm signal and detection
Combustable gas concentration is transmitted to monitoring center 30, while the survey meter control device 10 controls the fan linkage control equipment
The 20 controls supply and exhaust device starting, reduces the concentration of fuel gas in combustion gas cabin, prevents fire, explosion.
The monitoring center 30, including connect with 10 signal of survey meter control device coal gas detection work station, with
The combustion gas detection alarm device and connect with the combustion gas detection alarm device signal that the coal gas detection work station signal connects
The host computer connect.
It please refers to shown in Fig. 2, pipe gallery includes several fire compartments and is set between several fire compartments
Combustion gas cabin accident section subregion and adjacent sectors.Survey meter control device is provided in the electrical equipment of each fire compartment
10, it is installed in fire compartment using wall hanging or the cabinet type mounting structure of disk, for acquiring and the combustible gas detecting of displaying scene
Information.The gas alarm control device has touch display screen, has friendly man-machine interface, easy to operate, reliable performance, leads to
The features such as strong with property, and can be according to live actual state and demand, progress instrument is shown and Working mode set.The gas report
Alert control device also has the function of alarm parameters setting, real-time clock and history warning message record etc..The gas alarm control
The parameter of device setting processed automatically saves, and data are not lost after power down.The gas alarm control device is used in runnable interface
The information such as number and each road gas detection concentration of Bar graphic display, each road gas detection state and alarm.
The survey meter control device 10 includes several survey meter control devices being set in the fire compartment
101、…、10n, single survey meter control device includes several combustible gas probes 1011、…、101n, several combined aural and visual alarms
1021、…、102nAnd with several combustible gas probes 1011、…、101n, several combined aural and visual alarms 1021、…、102n
The gas alarm control device 103 connected with bus type1.The gas alarm control device 103 of different fire compartments1、…、
103nBetween using RS485 bus mode be connected.
Specifically, at gas pipeline junction, valve, local high spot and normal reach every 15m be arranged one it is flammable
A combined aural and visual alarm is arranged every 30m in each fire compartment in combustion gas cabin in gas detector, is arranged apart from fire compartment both ends
Distance is not more than 15m.Several combustible gas probes and several combined aural and visual alarms of same fire compartment are connected to bus type
On gas alarm control device in corresponding fire compartment.
Particularly, the gas alarm control device 103 of the number one fire compartment nearest from the monitoring center 301
It is provided with intermediate relay between monitoring center 30, alarm signal is transmitted to monitoring center 30.
Each described combustible gas probe includes gas sensor, for monitoring temperature change in combustible gas probe
The temperature sensor of change and the microprocessor being connect with gas sensor and temperature sensor signal.The microprocessor combines essence
Close temperature sensor is capable of the drift of intelligent compensation gas sensor, and environment adaptation range is wide, the operation is stable, without debugging.This can
Combustion gas bulk detector is installed in fire compartment using ceiling mounting means, and installation is simple, easy-to-connect.In addition, described flammable
The operating voltage of gas detector is DC voltage, and exportable a pair of of relay passive contact signal is (normal after issuing alarm signal
Open, it is normally closed can wire jumper setting), can be used for controlling ventilation device or provide normally opened or normally closed alarm actuating contact for other equipment.
Each described gas alarm control device 1031、…、103nIt is inside provided with automatic alarm device, the automatic report
Alarm device can be combined aural and visual alarm.The combined aural and visual alarm has voice broadcast function.When combustable gas concentration reaches in environment
To setting critical concentration (warning concentration) when, the combined aural and visual alarm scene issues sound and light alarm signal, can export relay
Device passive contact signal, and voice broadcast remind field personnel to withdraw, while the host computer of monitoring center 30 receives alarm
Information simultaneously collects, records combustable gas concentration probe value.When ambient enviroment combustable gas concentration drop to the critical concentration of setting with
When lower, the combustible gas probe in alarm condition will automatically restore to normal operating conditions.
The city integrated piping lane natural gas alarm system based on Internet of Things further includes and the survey meter control device
10 and the fan linkage control 20 signal of equipment connection automatic alarm system linkage controller.When fuel gas in combustion gas cabin
When concentration is more than critical concentration, the automatic alarm system linkage controller control starts the combustion gas cabin accident section subregion and phase
The supply and exhaust device of adjacent subregion.Supply and exhaust device can be blowing and discharging fan, or other ventilation equipment.
The city integrated piping lane natural gas alarm system based on Internet of Things further includes and the survey meter control device
10 and the fan linkage control 20 signal of equipment connection emergency cut-off system.If the emergency cut-off system includes being set to
Several emergency automatic shutoff valves of dry fire compartment, it is described several when combustable gas concentration is more than critical concentration in combustion gas cabin
Emergency automatic shutoff valve cuts off the valve of several fire compartments and controls the supply and exhaust device starting.The emergency cut-off
System has long-range remote control function, and operator is allow to make understanding to situation in the first time that natural gas leaking occurs, and
Corresponding processing is made in time, so that the harmfulness of natural gas leaking is preferably minimized.
In conclusion the city integrated piping lane natural gas alarm system 100 of the invention based on Internet of Things, by being set to
Survey meter control device 10 in fire compartment detects the combustable gas concentration in combustion gas cabin, and by combustable gas concentration and presets
Critical concentration be compared；When combustable gas concentration is more than or equal to critical concentration, 10 scene of survey meter control device is issued
Alarm signal, and the combustable gas concentration of alarm signal and detection is transmitted to monitoring center 30, while survey meter control device
10 control fan linkage control equipment 20 control the supply and exhaust device starting of accident section subregion and adjacent sectors, and make relevant set
It is standby to be in fire-fighting operating status, while notifying related personnel to withdraw scene in a manner of sound-light alarm.So set, can occur
The first time of natural gas leaking makes understanding to situation, and makes corresponding processing in time, thus the danger of natural gas leaking
Evil property is preferably minimized, and improves the safety coefficient of pipe gallery；Design layout of the present invention is reasonable, full-featured, and safety coefficient is high,
Realize comprehensive detection and centralized management, significantly reduce equipment and personnel cost, also achieve in the runtime of piping lane can
It is managed depending on changing.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of city integrated piping lane natural gas alarm system based on Internet of Things, it is characterised in that: including
Survey meter control device is set in the fire compartment of combustion gas cabin, flammable in the fire compartment of combustion gas cabin for detecting, recording
Gas concentration, and after the combustable gas concentration is compared with preset critical concentration, obtained comparison information is exported；
Fan linkage controls equipment, connect with the survey meter control device signal, is set to combustion gas cabin accident section for controlling
The working condition of supply and exhaust device in subregion and adjacent sectors；
Monitoring center is connect with the survey meter control device signal, for receiving the ratio of the survey meter control device output
The working condition that the fan linkage controls equipment is controlled compared with information, and according to the comparison information；
When the comparison information is that the combustable gas concentration is more than or equal to the critical concentration, the survey meter control device
Scene issues alarm signal, and alarm signal and the combustable gas concentration of detection is transmitted to monitoring center, while described
Survey meter control device controls the fan linkage control equipment and controls the supply and exhaust device starting.
2. the city integrated piping lane natural gas alarm system according to claim 1 based on Internet of Things, it is characterised in that: single
If the survey meter control device of a fire compartment include several combustible gas probes being set in the fire compartment,
Dry combined aural and visual alarm and the gas alarm being connect with several combustible gas probes, several combined aural and visual alarms with bus type
Control device.
3. the city integrated piping lane natural gas alarm system according to claim 2 based on Internet of Things, it is characterised in that: no
RS485 bus mode is used to be connected between the gas alarm control device of fire compartment.
4. the city integrated piping lane natural gas alarm system according to claim 3 based on Internet of Things, it is characterised in that: every
It is provided with automatic alarm device in one gas alarm control device, the number one fire prevention nearest from the monitoring center
It is provided with intermediate relay between the gas alarm control device and monitoring center of subregion, alarm signal is transmitted to prison
Control center.
5. the city integrated piping lane natural gas alarm system according to claim 2 based on Internet of Things, it is characterised in that: institute
Gas alarm control device is stated with touch display screen, including but not limited to for the detection of real-time display combustible gas probe
Combustable gas concentration, warning message, history warning message is shown and Working mode set.
6. the city integrated piping lane natural gas alarm system according to claim 2 based on Internet of Things, it is characterised in that: institute
Stating combustible gas probe includes gas sensor, the temperature sensing for monitoring temperature change in the combustible gas probe
Device and the microprocessor being connect with the gas sensor and the temperature sensor signal.
7. the city integrated piping lane natural gas alarm system according to claim 6 based on Internet of Things, it is characterised in that: every
Combined aural and visual alarm is additionally provided in one combustible gas probe, the combined aural and visual alarm has voice broadcast function.
8. the city integrated piping lane natural gas alarm system according to claim 1 based on Internet of Things, it is characterised in that: institute
Stating alarm system further includes the automatic alarm connecting with the survey meter control device and fan linkage control device signal
System interlink controller, when combustable gas concentration is more than critical concentration in combustion gas cabin, the automatic alarm system linkage control
Device controls the supply and exhaust device starting.
9. the city integrated piping lane natural gas alarm system according to claim 1 based on Internet of Things, it is characterised in that: institute
Stating alarm system further includes the emergency cut-off connecting with the survey meter control device and fan linkage control device signal
System, the emergency cut-off system include several emergency automatic shutoff valves for being set to several fire compartments；When can in combustion gas cabin
When combustion gas bulk concentration is more than critical concentration, several emergency automatic shutoff valves cut off the valve of several fire compartments and control
Make the supply and exhaust device starting.
10. the city integrated piping lane natural gas alarm system according to claim 9 based on Internet of Things, it is characterised in that:
The emergency cut-off system has long-range remote control function.
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| CN201910582844.4A CN110415492A (en) | 2019-07-01 | 2019-07-01 | City integrated piping lane natural gas alarm system based on Internet of Things |
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| CN110910614A (en) * | 2019-11-25 | 2020-03-24 | 中冶南方（武汉）自动化有限公司 | Alarm signal linkage triggering system and method for underground comprehensive pipe gallery monitoring system |
| CN110910614B (en) * | 2019-11-25 | 2021-08-13 | 中冶南方（武汉）自动化有限公司 | Alarm signal linkage triggering system and method for underground comprehensive pipe gallery monitoring system |
| CN111060343A (en) * | 2019-12-31 | 2020-04-24 | 北京交通大学 | Simulation test system for safety detection of pipe gallery ventilation system |
| CN115713840A (en) * | 2022-10-08 | 2023-02-24 | 重庆中烟工业有限责任公司 | Natural gas leakage-proof linkage alarm system |
| CN115824894A (en) * | 2022-12-21 | 2023-03-21 | 南通辰聚电子科技有限公司 | Experimental device and experimental method for researching natural gas leakage diffusion law in limited space |
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Application publication date: 20191105 |