CN204203206U - Cable tunnel harmful gas on-Line Monitor Device - Google Patents

Cable tunnel harmful gas on-Line Monitor Device Download PDF

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Publication number
CN204203206U
CN204203206U CN201420731479.1U CN201420731479U CN204203206U CN 204203206 U CN204203206 U CN 204203206U CN 201420731479 U CN201420731479 U CN 201420731479U CN 204203206 U CN204203206 U CN 204203206U
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China
Prior art keywords
subsystem
harmful gas
power
monitor device
cable
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420731479.1U
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Chinese (zh)
Inventor
贝嘉鹏
罗翔
胡萌
孙立刚
郑茗元
赖鹏
刘新会
庄贵和
林明轩
邓兴承
吴毓锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haikou Power Supply Bureau of Hainan Power Grid Co Ltd
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Haikou Power Supply Bureau of Hainan Power Grid Co Ltd
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Application filed by Haikou Power Supply Bureau of Hainan Power Grid Co Ltd filed Critical Haikou Power Supply Bureau of Hainan Power Grid Co Ltd
Priority to CN201420731479.1U priority Critical patent/CN204203206U/en
Application granted granted Critical
Publication of CN204203206U publication Critical patent/CN204203206U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of cable tunnel harmful gas on-Line Monitor Device, belongs to transmission line of electricity monitoring technology on-line field.It comprises power subsystem, acquisition subsystem and communication subsystem, the gas volume fraction collecting harmful gas is transformed into corresponding current signal by acquisition subsystem, current signal is converted to digital signal and stores by acquisition subsystem, digital signal is wirelessly sent to remote data center by communication subsystem, and power subsystem provides electric power by gathering induction current on cable for acquisition subsystem and communication subsystem.Be stuck in induction energy fetching on high-tension cable, the external multiple dissimilar gas sensor of device by induction power taking CT, gather the harmful gas solubility in tunnel or pipe trench, send it back remote data center by wireless carrier network.The power supply it solving harmful gas on-Line Monitor Device and the difficult problem communicated, for the monitoring harmful gases in cable tunnel provides good scheme.

Description

Cable tunnel harmful gas on-Line Monitor Device
Technical field
The utility model relates to a kind of cable tunnel harmful gas on-Line Monitor Device, belongs to transmission line of electricity monitoring technology on-line field.
Background technology
Because electric power tunnel is generally positioned at underground, air circulation is poor, and harmful gas is easily assembled, than low on ground, when oxygen content is lower than certain value, after people goes down, may may there is the reaction that plateau is the same in the oxygen content in tunnel, time serious, the life security of entail dangers to people.Anoxic has the greatest impact to brain, and brain oxygen utilization accounts for 25% of the total oxygen utilization of human body, and anoxic is the permanent necrosis of brain cell, brain interstitial edema after 8 minutes, cannot rehabilitation.Cable tunnel may may permeate to cable tunnel by the harmful gas that produces of the decomposition inside construction parallel with many municipal pipelines, particularly municipal wastewater pipeline, and in cable tunnel inner accumulated.
In electric power tunnel, namely hydrogen sulfide gas main source is come in by infiltration, and sulfuretted hydrogen severe toxicity, belongs to and common are harmful gas.In tunnel, methane source is similar with sulfuretted hydrogen, is also mainly through penetrating into tunnel.When methane content is raised to critical value, may cause exploding and causing tunnel fire hazard.
Calendar year 2001, Shanghai power supply administration caused cable tunnel fire because cable mid head is overheated, and large area cable is burnt, and caused urban district large area blackout.
On February 13rd, 2008, cable fire under spot, Fengzhen City, the Inner Mongol.Overdo length 288m, burns 18, cable, causes the power-off of Fengzhen City Shuo Jia high energy heavy and chemical industries.
On February 11st, 2009, the stolen initiation fire of Kunming earthing cable.
Several case above, can find on the internet, also has many accidents, generally in electric system house organ, not open.
For protecting the personal safety of tunnel patrol officer and eliminating tunnel fire hazard hidden danger, be necessary to carry out monitoring in 24 hours to the harmful gas in tunnel.Existing monitoring harmful gases system, adopt centrally connected power supply and optical fiber communication mode, for newly built tunnels, in design phase i.e. resource such as reserved optical-fiber communication channel and wire casing position etc., simultaneously in monitoring system deployment, because also non-cable laying or cable have been laid but the operation that is not also energized, so cable wiring manufacture is fairly simple.But for built and cable has been energized the tunnel put into operation, then there is difficult wiring, do not have power supply and optical cable can predicament.
Utility model content
For above deficiency, the utility model provides one power taking on the spot, need not grow the cable tunnel harmful gas on-Line Monitor Device of distance bracing wire, the wiring that the harmful gas on-line monitoring equipment solving existing wire communication mode faces on built cable tunnel is difficult, the problem of power taking difficulty.
A kind of cable tunnel harmful gas on-Line Monitor Device, it comprises power subsystem, acquisition subsystem and communication subsystem, power subsystem electrical connection acquisition subsystem and communication subsystem, there is provided electric power by power subsystem, acquisition subsystem is wirelessly sent to remote data center by communication subsystem after gathering harmful gas.
In order to realize structure optimization, its further measure is:
Acquisition subsystem comprises several gas sensor, collector and master control borad, in the stube cable tunnel, one end of gas sensor or pipe trench, the gas volume fraction of the harmful gas collected is transformed into corresponding current signal by gas sensor, the current signal that gas sensor is changed is flowed to master control borad and stores by collector, master control borad converts the current signal that collector is carried to digital signal, to realize the functions such as data storage, data upload, protocol conversion.
Power subsystem comprises induction power taking CT, rectifying and voltage-stabilizing module, solar charging/discharging controller, module is restarted in accumulator and timing, induction power taking CT gathers the electric current on cable, electric current input rectifying Voltage stabilizing module, electric current inputs solar charging/discharging controller and accumulator respectively after the voltage that rectifying and voltage-stabilizing module converts becomes stable, to charge to accumulator, power subsystem is restarted module by timing and is realized restarting or closing, solar charging/discharging controller Real-Time Monitoring battery tension, solar charging/discharging controller provides power supply to export simultaneously, by accumulator, acquisition subsystem and communication subsystem are powered.
Communication subsystem is made up of data transmission module, and data transmission module communicates with master control borad, and data transmission module connects background data center, and maintains the connection with center.
The master control borad of collector is provided with cascade port.
Gas sensor comprises oxygen sensor, methane transducer, hydrogen sulfide sensor and carbon monoxide transducer.
The beneficial effects of the utility model: adopt solar charging/discharging controller 5 to protect the charge and discharge process of accumulator; because solar charging/discharging controller has MPPT maximum power point tracking (MPPT) technology; automatically charging current can be adjusted; input terminal voltage (namely rectification exports) is kept to be stabilized in 17.8V; compare existing induction electricity getting system; the utility model rectifying and voltage-stabilizing exports 12V; rectifier output voltage is higher; when exporting said function; electric current is less; line loss is less, and thermal value is little, and system is also safer and reliable.
Adopt and can dispose harmful On-Line Monitor Device of Gas quickly and easily in established tunnel, and the problem that the thermal value solving the existence of general induction electricity getting system is large, time as there is multiple equipment at the scene, also by the mode of cascade, realize communication line to share, compare legacy equipment mode, save a large amount of construction cost and operating cost.
The utility model solves the technical scheme that its technical matters adopts: the power subsystem adopting induction power taking CT and accumulator collocation, solve device power supply (DPS) supply problem, adopt the communication issue between communication solution equipment and backstage, distance deployable communication cable need not be grown, adopt the mode of cascade, realize the connection between local multiple equipment, share a communication port, save equipment cost and operation cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, gas sensor, 2, collector, 3, induction power taking CT, 4, rectifying and voltage-stabilizing module, 5, solar charging/discharging controller, 6, accumulator, 7, timing restarts module, 8, data transmission module, 9, cascade port, 10, power light, 11, bus adapter.
Embodiment
Be further elaborated the utility model below in conjunction with accompanying drawing, wherein, direction of the present utility model take Fig. 1 as standard.
With reference to Fig. 1, cable tunnel of the present utility model harmful gas on-Line Monitor Device, it comprises power subsystem, acquisition subsystem and communication subsystem, the gas volume fraction collecting harmful gas is transformed into corresponding current signal by acquisition subsystem, current signal is converted to digital signal and stores by acquisition subsystem, digital signal is wirelessly sent to remote data center by communication subsystem, and power subsystem provides electric power by gathering induction current on cable for acquisition subsystem and communication subsystem.
Acquisition subsystem comprises several gas sensor 1, collector 2 and master control borad, in the stube cable tunnel, one end of gas sensor 1 or pipe trench, gas sensor 1 comprises the explosion-proof oxygen sensor of technical grade, methane transducer, hydrogen sulfide sensor and carbon monoxide transducer, oxygen sensor, methane transducer, the output of hydrogen sulfide sensor and carbon monoxide transducer is all technical grade standard 4 ~ 20mA current signal, have the advantages that antijamming capability is strong, the gas volume fraction of the harmful gas collected is transformed into corresponding current signal by gas sensor 1, the current signal that gas sensor 1 is changed is flowed to master control borad and stores by collector 2, master control borad converts the current signal that collector 2 is carried to digital signal, store to realize data, data upload, the functions such as protocol conversion.
Power subsystem comprises induction power taking CT3, rectifying and voltage-stabilizing module 4, solar charging/discharging controller 5, module 7 is restarted in accumulator 6 and timing, induction power taking CT3 gathers the electric current on cable, alternating current on cable produces alternating magnetic field, the magnetic line of force converges the high permeability material in induction power taking CT3, high permeability material does not stop change magnetic flux outside around inductive coil on respond to generation current, because the electric current on cable is alternating current, so the electric current that inductive coil produces also is alternating current, electric current input rectifying Voltage stabilizing module 4, electric current converts to after stable voltage through rectifying and voltage-stabilizing module 4 and inputs solar charging/discharging controller 5 and accumulator 6 respectively, to charge to accumulator 6, power subsystem is restarted module 7 by timing and is realized restarting or closing, and timing is restarted module 7 and is connected on the collector 2 of acquisition subsystem, solar charging/discharging controller 5 Real-Time Monitoring accumulator 6 voltage, solar charging/discharging controller 5 provides power supply to export simultaneously, powered by accumulator 6 pairs of acquisition subsystems and communication subsystem, if accumulator 6 externally discharges, voltage drop has been and has been put protection threshold values, then solar charging/discharging controller 5 power cutoff exports, prevent from accumulator 6 from crossing to put.
Communication subsystem is made up of data transmission module 8, data transmission module 8 is DTU, master control borad is communicated with data transmission module by RS485 data cube computation form, data transmission module 8 initiatively connects background data center, and maintain the connection with center, for master control borad provide one with the transparent data transfer passage of data center, the master control borad of collector 2 provides a RS485 bus cascade port 9, realize multiple the utility model or there is the cascade of this RS485 bus cascade port 9 equipment, with common share communication circuit, for solving the impact of RS485 bus latter end signal reflex, simultaneously for supporting the cascade of remote equipment, RS485 bus connects bus adapter 11.
The course of work of the present utility model is: be arranged on by the utility model in cable tunnel or pipe trench, induction power taking CT3 is stuck on the cable of running current, induce alternating current, direct voltage is rectified into through rectification module, enter solar charging/discharging controller 5, accumulator 6 is charged, solar charging/discharging controller 5 provides power supply to export simultaneously, restart module 7 through timing and power subsystem is connected in acquisition subsystem and communication subsystem to provide power supply, regularly restart in module 7 and be connected with a power light 10, power supply is provided to export instruction, oxygen sensor, methane transducer, the gas volume fraction of correspondence is changed into corresponding current signal by hydrogen sulfide sensor and CO gas sensor, export 4 ~ 20mA electric current, by oxygen sensor, methane transducer, hydrogen sulfide sensor and CO gas sensor access collector 2, the built-in 200 Europe precision resistances of collector 2, collector 2 converts the current signal of input to voltage signal and adopts integrated Digital Signal by ADC conversion, by the data transmission module 8 of communication subsystem by this radio transmission of digital signals to background data center, in addition, collector 2 provides a cascade port 9 to export, cascade port 9 adopts RS485 bus mode, for solving the impact of RS485 bus latter end signal reflex, simultaneously for supporting remote equipment cascading, RS485 bus connects bus adapter, collector 2 data-out port connects the data transmission module 8, data transmission module 8 connects remote data center and always online, transparent data transfer between a collector 2 to remote data center passage is provided therefrom, data flow process is, collector 2 taken at regular intervals harmful gas solubility data, and then be uploaded to remote data center by data transmission module 8.

Claims (6)

1. a cable tunnel harmful gas on-Line Monitor Device, it is characterized in that, it comprises power subsystem, acquisition subsystem and communication subsystem, power subsystem electrical connection acquisition subsystem and communication subsystem, there is provided electric power by power subsystem, acquisition subsystem is wirelessly sent to remote data center by communication subsystem after gathering harmful gas.
2. cable tunnel as claimed in claim 1 harmful gas on-Line Monitor Device, it is characterized in that, acquisition subsystem comprises several gas sensor (1), collector (2) and master control borad, in the stube cable tunnel, one end of gas sensor (1) or pipe trench, the gas volume fraction of the harmful gas collected is transformed into corresponding current signal by gas sensor (1), the current signal that gas sensor (1) is changed is flowed to master control borad and stores by collector (2), master control borad converts the current signal that collector (2) is carried to digital signal, store to realize data, data upload, the functions such as protocol conversion.
3. cable tunnel as claimed in claim 1 harmful gas on-Line Monitor Device, it is characterized in that, power subsystem comprises induction power taking CT (3), rectifying and voltage-stabilizing module (4), solar charging/discharging controller (5), module (7) is restarted in accumulator (6) and timing, induction power taking CT (3) gathers the electric current on cable, electric current input rectifying Voltage stabilizing module (4), electric current inputs solar charging/discharging controller (5) and accumulator (6) respectively after rectifying and voltage-stabilizing module (4) converts stable voltage to, to charge to accumulator (6), power subsystem is restarted module (7) by timing and is realized restarting or closing, solar charging/discharging controller (5) Real-Time Monitoring accumulator (6) voltage, solar charging/discharging controller (5) provides power supply to export simultaneously, by accumulator (6), acquisition subsystem and communication subsystem are powered.
4. cable tunnel as claimed in claim 2 harmful gas on-Line Monitor Device, it is characterized in that, communication subsystem is made up of data transmission module (8), data transmission module (8) communicates with master control borad, data transmission module (8) connects background data center, and maintains the connection with center.
5. cable tunnel as claimed in claim 2 harmful gas on-Line Monitor Device, it is characterized in that, the master control borad of collector (2) is provided with cascade port (9).
6. cable tunnel as claimed in claim 2 harmful gas on-Line Monitor Device, it is characterized in that, gas sensor (1) comprises oxygen sensor, methane transducer, hydrogen sulfide sensor and carbon monoxide transducer.
CN201420731479.1U 2014-11-28 2014-11-28 Cable tunnel harmful gas on-Line Monitor Device Expired - Fee Related CN204203206U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420731479.1U CN204203206U (en) 2014-11-28 2014-11-28 Cable tunnel harmful gas on-Line Monitor Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420731479.1U CN204203206U (en) 2014-11-28 2014-11-28 Cable tunnel harmful gas on-Line Monitor Device

Publications (1)

Publication Number Publication Date
CN204203206U true CN204203206U (en) 2015-03-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017560A (en) * 2016-06-14 2016-10-12 上海君世电气科技有限公司 Cable well state comprehensive monitoring and early warning system
CN113092677A (en) * 2021-03-31 2021-07-09 杭州市市政工程集团有限公司 Integrated monitoring and alarming device for high-voltage power tunnel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017560A (en) * 2016-06-14 2016-10-12 上海君世电气科技有限公司 Cable well state comprehensive monitoring and early warning system
CN113092677A (en) * 2021-03-31 2021-07-09 杭州市市政工程集团有限公司 Integrated monitoring and alarming device for high-voltage power tunnel

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150311

Termination date: 20151128