CN106652369A - Floating roof tank grounding safety real-time monitoring early warning system - Google Patents
Floating roof tank grounding safety real-time monitoring early warning system Download PDFInfo
- Publication number
- CN106652369A CN106652369A CN201510734071.9A CN201510734071A CN106652369A CN 106652369 A CN106652369 A CN 106652369A CN 201510734071 A CN201510734071 A CN 201510734071A CN 106652369 A CN106652369 A CN 106652369A
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- Prior art keywords
- monitoring
- grounding
- early warning
- tank
- impedance
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Classifications
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- 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
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
Abstract
The invention discloses a floating roof tank grounding safety real-time monitoring early warning system, and belongs to a storage tank grounding safety protection technology field. The floating roof tank grounding safety real-time monitoring early warning system is mainly constituted by a telescopic grounding unit, a grounding impedance monitoring unit, a monitoring early warning unit, and a remote monitoring unit. The telescopic grounding unit comprises a plurality of anti-explosion telescopic grounding devices. The grounding impedance unit comprises a monitoring wire spool and an anti-explosion grounding impedance monitor. The monitoring early warning unit comprises an acquisition transmission module, a monitoring industrial personal computer, an audible and visual alarming device, and an industrial router. The remote monitoring unit comprises an Internet network, a 3G/4G network, a router, a computer, and a mobile intelligent terminal. The floating roof tank grounding safety real-time monitoring early warning system advantageous in that equipotential connection between a floating tray and a tube wall is effectively guaranteed, the grounding impedance of the whole storage tank is monitored in a real-time manner, and the early warning of the abnormal grounding state of the storage tank is given, and the remote monitoring is realized, and therefore the grounding device or the related device is repaired timely before the lightning stroke, and the lightning stroke accident of the storage tank is prevented.
Description
Technical field
The invention belongs to tank grounding technical field of safety protection, more particularly to a kind of floating roof tank grounding safety monitor in real time early warning
System.
Background technology
With China's rapid economic development, large-scale crude oil business warehouse and official reserves storehouse are increasing, especially floating roof tank
Tank area gross reserves and single tankage size are increasing, and the volume and surface area ratio of floating top oil tank are multiplied in the past, meet with thunderbolt
Probability and thunderbolt occur when lightning current intensity all greatly improve.It is easy to run off, easily because the crude oil of floating roof tank storage has
The property such as burning and explosive, once there is fire or blast, easily causes heavy losses.
From the analysis of storage tank interruption of service, lightning strike accident accounts for the 85% of the total accident of oil tank.Effectively lightning protection is to reduce storage
Tank thunderbolt important method on fire, it is to ensure the basis of its continuous and effective to strengthen Earthing of Oil Tank safety detection.Oil storage floating roof
Tank thunderbolt is on fire, is mainly caused by direct lightning strike or induced lightening, is learnt according to domestic and international large oil tank statistical analysis for many years,
It is flashover occurs and causes because induced lightening causes many places potential difference that most large oil tanks are on fire.The floating plate of floating roof tank has with tube wall
Gap, in lightning stroke process, cause floating plate be detained bound charge, its will by the way that ungrounded loop is in tank body tank skin and discharges,
Form secondary arc.Secondary arc occur storage tank once with secondary seal at, be in explosive hazard environment region, meet
Reach the oil gas of blast mixing ratio, you can cause fire.
Current solutions mainly take following several ways, but all Shortcomings：(1) splitter is set.But no matter shunting
Piece is likely in any case produce electric arc between top or bottom, with inner tank wall, if flow distribution plate is located at top,
The position for producing electric arc is placed exactly in higher concentration air-fuel mixture area；(2) staircase connection.Due in staircase roller bearing and other sections
Contact resistance is big between point.Therefore, big potential difference is had between floating plate and tank body, pad can produce electric arc, Er Qieyou
It is too high in the impedance of such node and pad cannot be avoided electric arc occur；(3) twisted again using 2 25 square millimeters of soft coppers
Line connects floating plate and tank body.Its existing problem is that wire is long, and AC impedance is larger；(4) connected using telescopic earthing or grounding means
Floating plate and storage tank shell are connect, equipotential link is carried out, this method is needed by regular manual detection tank grounding, can ensure it
Validity.
Above-mentioned several method is all difficult to the effective grounding of effective guarantee floating roof tank and cannot in real time control the ground connection feelings of floating roof tank
Condition, needs regularly to carry out manual detection to tank grounding.Therefore, to solve the above problems, exploitation is effectively telescopic to be connect
Ground equipment, and possess the functions such as grounding safety monitor in real time warning in the floating roof tank grounding safety monitor in real time early warning system of one
Have important practical significance.Petroleum-based energy strategic reserves is an important state basic policy of China, carries out effective lightning protection and arranges
Grounding safety state is applied and controls at any time, for guaranteeing External floating roof tank safe storage and using most important.
The content of the invention
The purpose of the present invention is to overcome the weak point of prior art, there is provided a kind of floating roof tank grounding safety monitor in real time is pre-
Alarm system, this system is good by floating top pot floating dish effective grounding, impedance ground real-time monitoring, early warning and alarming and remote monitoring
Combine, be ensure External floating roof tank lightning protection anti electrostatic connect and safely provide effective workaround.
A kind of floating roof tank grounding safety monitor in real time early warning system of the present invention, it is characterised in that the system is mainly by scalable
Formula ground unit, impedance ground monitoring unit, monitoring and early warning unit and remote monitoring unit composition.The extension type ground connection is single
Unit includes several explosion-proof extension type grounding apparatus, and the explosion-proof extension type grounding apparatus is used to connect storage tank floating plate and pipe
Wall, connects to form effective equipotential by bar shaped scale copper；Explosion-proof earthing impedance monitoring unit is explosion-proof earthing impedance monitor,
Explosion-proof earthing impedance monitor is connected respectively by three of the cables with storage tank floating plate, storage tank base tie point and earth point, is used for
The impedance ground of real-time detection storage tank, analyzes, processes, judging that impedance ground, whether more than tank grounding setting value, shows simultaneously
Storage reservoir ground state information, if monitoring to show redness if resistance value exceedes setting value, not less than setting value, shows green
Color；Described monitoring and early warning unit includes collection transport module, monitoring industrial computer, audible-visual annunciator and industrial router, adopts
Collection transport module collects impedance signal and is transferred to monitoring industrial computer from each explosion-proof earthing impedance monitor, monitors industrial computer pair
Each tank grounding situation carries out Intelligent treatment analysis and judges tank grounding situation, if analysis show that abnormal state sends early warning and alarming
Signal, triggering audible-visual annunciator sends sound and light alarm signal, remind related personnel to carry out processing in time to live grounding apparatus and
Maintenance；Remote monitoring unit includes Internet, 3G/4G network, router, computer and mobile intelligent terminal, wherein,
Mobile intelligent terminal is by the 3G/4G networks remote monitoring each tank grounding situation in scene and reception is come early warning industrial computer whenever and wherever possible
Early warning and alarming signal, the state that computer passes through router and Internet network remote monitoring storage tank.Described is explosion-proof
Impedance ground monitor is connected with collection transport module by cable；The collection transmission equipment passes through with monitoring and early warning industrial computer
485 buses connect；The monitoring and early warning industrial computer is connected with industrial router by netting twine；The industrial router with
Internet is connected by fiber optic network；The PC is connected with industrial router by netting twine, and mobile intelligent terminal passes through
3G/4G networks are communicated.
The invention has the characteristics that and beneficial effect：
The present invention is a set of by integrated floating of floating top pot floating dish effective grounding, real-time monitoring, early warning and alarming, remote monitoring
Top tank grounding safety monitoring early-warning system.System adopts explosion-proof extension type grounding apparatus, lifts with storage tank floating plate and stretches automatically
Contracting remains minimum impedance, effectively reduces the floating roof tank oil tank spark discharge caused by thunder and lightning, the storage of simultaneity factor real-time monitoring
Tank integral ground impedance, to grounding safety and unit exception state early warning and alarming is carried out, and reminds related personnel to set ground connection in time
Standby or relevant device places under repair, so as to the grounding safety of effective guarantee floating roof tank.Systematic function reliability, it is adaptable to corrosivity,
Explosive atmosphere, maintenance capacity is relatively low.
Description of the drawings
Fig. 1 is invention floating roof tank grounding safety monitor in real time early warning system structural representation
Specific embodiment
A kind of floating roof tank grounding safety monitor in real time early warning system proposed by the present invention combines drawings and Examples and describes in detail such as
Under：The floating roof tank grounding safety monitor in real time early warning system general structure of the present invention is as shown in Figure 1.The system is mainly by can stretch
Contracting formula ground unit I, impedance ground monitoring unit II, monitoring and early warning unit III and remote monitoring unit IV composition.It is scalable
Formula ground unit I includes several explosion-proof extension type grounding apparatus；Impedance ground monitoring unit includes monitoring drum and explosion-proof connects
Ground impedance monitor；Monitoring and early warning unit includes collection transport module, monitoring industrial computer, audible-visual annunciator and industrial router；
Remote monitoring unit includes Internet, 3G/4G network, router, computer and mobile intelligent terminal.It is described it is explosion-proof can
Telescopic grounding apparatus is arranged on tank wall top, is connected with storage tank floating plate by extension type scale copper；Described impedance ground
Monitor is connected with collection transport module by cable；The collection transmission equipment passes through 485 buses with monitoring and early warning industrial computer
Connection；The monitoring and early warning industrial computer is connected with industrial router by netting twine；The industrial router passes through with Internet
Fiber optic network connects；The PC is connected with industrial router by netting twine, and mobile intelligent terminal is entered by 3G/4G networks
Row communication.
Several extension type grounding apparatus described in explosion-proof extension type ground unit I, are uniformly installed on tank wall surrounding, peace
Dress quantity depends on tank capacity, and generally tank diameter can arrange one per 15 meters, and its strip scale copper is with floating plate
Drop and rise auto-extending or retraction is rolled, copper sheet is constantly in tension, for realizing storage tank floating plate and tank wall
Equipotential, it is to avoid floating plate and tank skin form electric arc.
Explosion-proof scalability grounding apparatus in the present embodiment adopts RGA-JL98, major parameter：Scale copper material is brass
Or zinc-plated copper alloy, weight is 30KG, and length is 25 meters, and strip scale copper quick-expansion and retraction are rolled and do not produce spark.
Monitoring drum described in impedance ground monitoring unit II is arranged on tank wall top, and drum keeps insulation with tank skin, therein
Monitoring cable be connected with floating plate, and the decline with floating plate and rising and auto-extending and retraction are rolled；Explosion-proof earthing impedance is supervised
Survey device to be connected with monitoring drum by cable, for monitoring storage tank overall impedance value, resistance value shows green when being less than setting value
Color, monitors that resistance value becomes red when exceeding setting value, and output alarm signal automatically.
Monitor drum in the present embodiment to be connected with floating plate by cable, cable declines with floating plate and rises and auto-extending and receipts
Return, and adopt REEL-JL, important technological parameters：25 meters of length, sectional area 0.9mm2。
Impedance ground monitor is connected to monitoring drum by cable in the present embodiment, and length of cable is most long up to 100 meters, uses
In the overall impedance value of real-time monitoring storage tank.Explosion-proof earthing impedance monitor in this enforcement is adopted
GROUNDGUARDIAN-JL, important technological parameters：Power as 110/220V, output circuit is essential safety observation circuit.
Transmission equipment is gathered described in monitoring and early warning unit III to be used to gather the output valve of impedance ground monitor and be transferred to monitoring
Early warning industrial computer, monitoring and early warning industrial computer is analyzed and processed in real time to signal, is shown in real time and storage reservoir Grounding,
Calculated automatically using security algorithm and judge tank grounding resistance value working condition, if impedance ground value exceedes setting value, triggering
Sound and light alarm carries out sound and light alarm.
Transmission equipment is gathered in the present embodiment and adopts siemens PLC, important technological parameters：Processor is CPU226, numeral
Expansion module is EM223, and analog quantity spread module EM235, ethernet communication module is CP243, and supply voltage is
85-264VAC。
Audible-visual annunciator adopts LA-P23, important technological parameters in the present embodiment：Rated operational voltage is DC12V, work temperature
Spend for -30～85 DEG C, acoustic pressure scope is 105dB ± 3dB (in 2m).
Monitoring and early warning industrial computer adopts North China industrial computer RICH-300A, important technological parameters in the present embodiment：Processor is
2.93GHz, chipset is Intel G41+ICH7, inside saves as DDR 4GB, and MTBF is >=60,000 hour.
Industrial router adopts H7920 technical grades, important technological parameters in the present embodiment：Support wireless and cable network, LAN
Mouth is 1x10/100Mb LAN ports, and Routing Protocol is static routing, RIP, RIPv2, OSPF；Wireless network is supported simultaneously
TD-LTE, FDD LTE, EVDO, WCDMA, TD-SCDMA, CDMA1x, EDGE/GPRS, built-in 3G/4G LTE
Industrial module.
Mobile intelligent terminal described in remote monitoring unit IV is used for long-range whenever and wherever possible by each storage tank in 3G/4G network monitorings scene
Grounding, when impedance ground value exceedes setting value, mobile intelligent terminal can produce vibrations and chimes of doom reminds user, user
Also related personnel can be contacted by mobile intelligent terminal carries out checking field condition on-call maintenance.
Mobile intelligent terminal adopts cloud fox technical grade mobile phone A 8, important technological parameters in the present embodiment：CPU is 1.5G, is processed
Device is four core processors, and battery capacity is 3500 MAHs, and water proof and dust proof degree of protection is IP68.
Described computer is used for the Grounding by Internet remote monitorings storage tank scene.
Computer in this enforcement adopts Lenovo Yangtian T4900, Specifeca tion speeification：Cpu frequency is 3.6GHz, internal memory
Capacity is 8GB, and hard-disk capacity is 1TB, and display is 20 inches.
Described Internet is used for network data transmission.
Described 3G/4G networks are transmitted due to wireless network data.
Described router is used for the route of transmission data.
Router adopts D-Link DI-8004W, important technological parameters in the present embodiment：Transfer rate 10/100Mbps, extensively
Domain network interface 4, lan interfaces 4.
Particular embodiments described above, the purpose to patent of the present invention, technical scheme and beneficial effect have been carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not limited to the present invention,
All any modifications within the spirit and principles in the present invention, made, equivalent change, improvement etc., should be included in the present invention
Protection domain within.
Claims (5)
1. a kind of floating roof tank grounding safety monitor in real time early warning system, it is characterised in that the system is mainly grounded by extension type
Unit, impedance ground monitoring unit, monitoring and early warning unit and remote monitoring unit composition.The extension type ground unit includes
Several explosion-proof extension type grounding apparatus；Impedance ground monitoring unit includes monitoring drum and explosion-proof earthing impedance monitor；Prison
Control prewarning unit includes collection transport module, monitoring industrial computer, audible-visual annunciator and industrial router；Remote monitoring unit bag
Include Internet, 3G/4G network, router, computer and mobile intelligent terminal.Described explosion-proof extension type ground connection sets
It is standby to be arranged on tank wall top, it is connected with storage tank floating plate by extension type scale copper；Described monitoring drum is arranged on tank wall
Top, is connected by monitoring cable with floating plate, and monitoring cable is connected by cable with explosion-proof earthing impedance monitor；Described is anti-
Quick-fried impedance ground monitor is connected with collection transport module by cable；The collection transmission equipment leads to monitoring and early warning industrial computer
Cross the connection of 485 buses；The monitoring and early warning industrial computer is connected with industrial router by netting twine；The industrial router with
Internet is connected by fiber optic network；The PC is connected with industrial router by netting twine, and mobile intelligent terminal passes through
3G/4G networks are communicated.
2. system as claimed in claim 1, it is characterised in that the extension type ground unit, including several be arranged on storage
Explosion-proof extension type grounding apparatus composition on tank skin, explosion-proof extension type grounding apparatus is by the way that strip scale copper is by floating plate and manages
Wall connects to form equipotential, and scale copper with floating plate decline and rising, roll by auto-extending and retraction so that scale copper is located all the time
In most short status, scale copper is made using brass or TC, and quick-expansion no-spark is produced, and corrosion resistance is strong, it is ensured that floating
Disk and the effective electric path of tube wall；Extension type grounding apparatus installation number determines that generally storage tank is straight by the capacity of storage tank
Footpath can arrange one per 15 meters.
3. system as claimed in claim 1, it is characterised in that described impedance ground monitoring unit include monitoring drum and
Explosion-proof earthing impedance monitor, monitoring drum is arranged on tank wall top, is connected with storage tank floating plate by monitoring cable；It is explosion-proof to connect
Ground impedance monitor is connected respectively by three of the cables with monitoring drum, storage tank base tie point and earth point, for inspection in real time
The impedance ground of storage tank is surveyed, analyzed, processed, whether impedance ground being judged more than tank grounding setting value, if exceeding setting value
Then monitor shows red light and outputs signal to collection transport module, if not less than setting value, showing green light.
4. system as claimed in claim 1, it is characterised in that described monitoring and early warning unit include collection transport module,
Monitoring industrial computer, audible-visual annunciator and industrial router；Described collection transport module can be by multiple ground connection by cable connection
The output signal of impedance monitor is acquired, and through processing converting transmission monitoring industrial computer is given；Described monitoring industrial computer pair
The ground state of multiple storage tanks carries out Treatment Analysis, is calculated automatically using security algorithm and is shown in real time and storage reservoir ground connection letter
Breath, impedance ground value is more than setting value, triggers audible-visual annunciator, and audible-visual annunciator sends corresponding sound and light alarm signal；When
When resistance value exceedes setting value, audible-visual annunciator sends sound and light alarm prompting field personnel and checks live grounding apparatus as early as possible
Or other relevant devices, and output signal to remote monitoring unit；Described industrial router is passed information by netting twine connection
Internet is defeated by, mobile intelligent terminal is transmitted information to by 3G/4G networks.
5. system as claimed in claim 1, it is characterised in that the remote monitoring unit includes Internet, 3G/4G
Network, router, computer and mobile intelligent terminal.The PC is desktop computer or notebook, by Internet with
Monitoring unit connects, the Grounding of each storage tank of remote real-time monitoring；The mobile intelligent terminal is smart mobile phone or flat board,
By 3G/4G network connections, tank grounding and relevant device situation are monitored whenever and wherever possible, receive the report that monitoring industrial computer sends
Alarming information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734071.9A CN106652369A (en) | 2015-11-03 | 2015-11-03 | Floating roof tank grounding safety real-time monitoring early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734071.9A CN106652369A (en) | 2015-11-03 | 2015-11-03 | Floating roof tank grounding safety real-time monitoring early warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106652369A true CN106652369A (en) | 2017-05-10 |
Family
ID=58809809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510734071.9A Pending CN106652369A (en) | 2015-11-03 | 2015-11-03 | Floating roof tank grounding safety real-time monitoring early warning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272879A1 (en) * | 2021-06-28 | 2023-01-05 | 中冶赛迪工程技术股份有限公司 | Lightning-protection mechanical internal capacity indicator for storage tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490228A (en) * | 2002-10-14 | 2004-04-21 | 元 孙 | Method and apparatus for eliminating secondary arc by floater |
| CN2854657Y (en) * | 2005-12-30 | 2007-01-03 | 北京远东仪表有限公司 | Safety monitoring system for oil depot tank region of filling station |
| CN204495921U (en) * | 2015-02-09 | 2015-07-22 | 安徽中普盛德电子科技有限公司 | A kind of intelligent lightning protection on-line monitoring early warning system |
| CN205302575U (en) * | 2015-11-03 | 2016-06-08 | 北京骏陇国际石油工程技术有限公司 | Floating roof tank grounding safety real time monitoring early warning system |
-
2015
- 2015-11-03 CN CN201510734071.9A patent/CN106652369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490228A (en) * | 2002-10-14 | 2004-04-21 | 元 孙 | Method and apparatus for eliminating secondary arc by floater |
| CN2854657Y (en) * | 2005-12-30 | 2007-01-03 | 北京远东仪表有限公司 | Safety monitoring system for oil depot tank region of filling station |
| CN204495921U (en) * | 2015-02-09 | 2015-07-22 | 安徽中普盛德电子科技有限公司 | A kind of intelligent lightning protection on-line monitoring early warning system |
| CN205302575U (en) * | 2015-11-03 | 2016-06-08 | 北京骏陇国际石油工程技术有限公司 | Floating roof tank grounding safety real time monitoring early warning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272879A1 (en) * | 2021-06-28 | 2023-01-05 | 中冶赛迪工程技术股份有限公司 | Lightning-protection mechanical internal capacity indicator for storage tank |
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Application publication date: 20170510 |
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