CN103728479A - Dust static real-time monitoring method - Google Patents
Dust static real-time monitoring method Download PDFInfo
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- CN103728479A CN103728479A CN201310493037.8A CN201310493037A CN103728479A CN 103728479 A CN103728479 A CN 103728479A CN 201310493037 A CN201310493037 A CN 201310493037A CN 103728479 A CN103728479 A CN 103728479A
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Abstract
The invention relates to a dust static real-time monitoring method which mainly solves the problems that in the prior art, design is complex and cost is high. According to the dust static real-time monitoring method, signals detected by a static detector generates voltage analog signals through a resistor, the analog signals enter a collection module connected with a direct-current power source and are converted into digital signals through the collection module, RS-485 serial communication signals are output, the digital signals enter a computer multi-serial-port board card, an MCGS software system installed in a computer reads dust static voltage values, real-time monitoring on dust static is achieved, and the technical scheme can be applied to dust static real-time monitoring.
Description
Technical field
The present invention relates to a kind of dust electrostatic method of real-time.
Technical background
Industrial staticelectricity is in commercial production, storage and transport process, the static that generation and accumulation are got up on material, device, human body, equipment and buildings.It has great impact to safety in production, product quality.Along with scientific and technical development, the progress of human society, macromolecular material, microelectronic component and explosion-protection equipment are widely used in every field, and the harm that static causes receives people's concern day by day.Inflammable, explosion hazard gases burning, blast in addition that static discharge not only can cause, and can make electronic equipment be interfered, cause mishap.For this reason, the research of electrostatic defending measure has become the research field that industrially developed country attaches great importance to.
In powder storage and transport process, the generation of static is inevitable.A large amount of because fricative electrostatic charge gathers together, once the dust concentration in tank body higher than minimum explosion limits, the voltage that static electric field produces, higher than flammable limits, will be blasted.
In numerous static research topics, because powder electrostatic disaster problem relates to professional wide, cause calamity process complexity, simulated experiment difficulty is large, the reasons such as expense height, so for the other field of modern static research, the research of powder electrostatic disaster in its mechanism that electrifies, cause the aspects such as calamity condition and prevention methods and relatively lag behind.Although the problem that the powder electrostatic field of taking precautions against natural calamities need to be researched and solved is a lot, but since the 1950's, the progress of this respect is always little, and its research level lags far behind the technical research such as liquid electrostatic prevention disaster, has larger gap with actual requirement.
Utilize the method for static on-line real time monitoring can measurement of electrostatic voltage, managerial personnel are understood to equipment material state in time, scent a hidden danger in time, effectively control the industrial accident being caused by static and have important practical significance.
In CN200420031776.1, related to a kind of embedded multifunctional smoke dust on-line monitoring system, comprise infrared launcher, infrared receiving device and master controller, master controller is by single-chip microcomputer, button, display and storer composition, infrared launcher is by two-circuit infrared illuminator, for the constant-power power source that provides constant power supply to infrared illuminator and make infrared illuminator send the uniform infrared light of light intensity, form, infrared receiving device is by photodetector, the prime amplifier that is connected on photodetector output terminal forms with the signal converter that is connected on prime amplifier output terminal, and photodetector and prime amplifier combine in a machine box, on the I/O port of single-chip microcomputer, be connected to the RS232 interface for realizing remote instruments setting parameter and data transmission.
The tool and method that exists in the market some to carry out in real time online electrostatic monitoring, but due to monitoring method and design of hardware and software relative complex, cost is higher.
Summary of the invention
Technical matters to be solved by this invention is the problem complicated to the design of dust electrostatic Real-Time Monitoring in prior art, cost is higher, and a kind of new dust electrostatic method of real-time is provided.The method, for dust electrostatic Real-Time Monitoring, has simplicity of design, lower-cost advantage.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of dust electrostatic method of real-time, the signal that static electricity scouting instrument is surveyed produces voltage analog signal through resistance, described simulating signal enters the acquisition module being connected with direct supply, through described acquisition module, be converted to digital signal, and export RS-485 serial communication signals, described digital signal enters many serial ports of computing machine board, by the MCGS software systems of installing in computing machine, read and obtain dust electrostatic voltage value, realize the Real-Time Monitoring to dust electrostatic.
In technique scheme, preferably, described resistance value is 350～600 ohm; Generation voltage analog signal is 2～10V.
In technique scheme, preferably, described static electricity scouting instrument is the contactless vacuum static electricity detection instrument of EST201.
In technique scheme, preferably, described acquisition module is deep lattice 7017 types.
In technique scheme, preferably, described many serial ports of computing machine board is MOXA CP-114 type, is built in computing machine.
In technique scheme, preferably, described static electricity scouting instrument is connected with at least one probe, pops one's head in as metal mold ball, by heatproof wire, is connected on static electricity scouting instrument; More preferably, described probe level is installed, and sealing.
In technique scheme, preferably, described system meets dustproof, requirement of explosion proof.
In technique scheme, preferably, described MCGS software systems have the function of real time data demonstration, the inquiry of historical data, real-time data base structure, warning, real time data form, historical data report.
In the static method of real-time of dust reaction provided by the invention or storage device, the device of producing and store dust is carried out to static on-line real time monitoring, to understand in time equipment material state, scent a hidden danger in time, effectively control the industrial accident being caused by static.Monitoring system is mainly carried out on-line measurement by the contactless vacuum static electricity current potential of EST201 detection instrument, by deep lattice 7017 analog input modules, carry out data acquisition, simulating signal is converted to digital signal, application MCGS (Monitor and Control Generated System monitors and controls general-purpose system) software system design real time data window, historical data window also builds real-time data base, warning system etc.
Electrostatic data acquisition system, comprises by the electrostatic detection system of MOXA CP-114 multi-serial-port card, deep lattice 7017 acquisition modules, the contactless vacuum static electricity detection instrument of EST201 and direct supply composition and the software systems of developing with MSGS.Through test, this cover system can complete electrostatic detection work and send Realtime Alerts.
Static electricity scouting instrument produces the voltage analog signal of 2～10V through a resistance, simulating signal enters deep lattice 7017 acquisition modules, through module converts, it is digital signal, and export RS-485 serial communication signals, digital signal enters computing machine MOXA CP-114 board and is read by software, just can measure voltage value.RS-485 is most widely used a kind of serial communication protocol in industrial field control bus at present.RS-485 serial bus interface standard, with difference balance mode signal transmission, has very strong antijamming capability, and transfer rate is brought up to 10Mb/s, and transmission range extends to 1219m, fully meets the needs that carry out long distance transmit in industry spot.
In MCGS software design procedure, real-time, the history curve information of electrostatic potential value are the problems that mainly should solve, and by analyzing, according to the requirement of the feature of device systems and production run operation, have designed following window in engineering:
(1) real time data window
Comprise tri-kinds of real-time curve 1KV, 5KV, 20KV, be convenient to can clearly show when measuring different electrostatic potential values.In circulation script in user window, add the relation between voltage, voltage millivolt and electrostatic potential: voltage .Value=voltage millivolt .Value*0.001, electrostatic potential .Value=5* voltage .Value-30.
(2) historical data window
Comprise history curve 1KV, 5KV, 20KV, and history curve 1KV, 5KV, 20KV within one hour, can demonstrate easily recent and long-term electrostatic data.
(3) structure real-time data base
Real-time data base is the core of MCGS system, is also the data processing centre (DPC) of application system, and system each several part is all take real-time data base as data public domain, carries out exchanges data, data processing and realizes the visualization processing of data.Therefore, create engineering and must construct real-time data base.In " real-time data base " window page, in modes such as icon, list, particulars, show the data object of oneself definition in real-time data base, can select order by name or sequentially show data object by type, also can shear, copy, paste the data object of appointment.
(4) real time data form
Real time data form is in real time the value of the data object of current time is shown and printed by certain statement form, and it is the reflection to instantaneous flow.In MCGS software systems, real time data form can carry out configuration by keisen member and show real time data form by its printout.
(5) historical data report
Historical data report is from historical data base, to extract deposit data recording, and historical data is shown and printed with certain form.In MCGS software systems, historical data report can carry out configuration by " history table " animation member and show real time data form by its printout.
(6) design of warning configuration
MCGS processes the attribute as data object using reporting to the police, and is encapsulated in data object, by real-time data base, when moving, is automatically processed.When the value of data object or state change, real-time data base judges whether the warning whether corresponding data object has occurred to report to the police or produced finishes, and notify the other parts to system produced warning message, simultaneously, real-time data base, according to user's configuration and setting, deposits warning message in the deposit database file of appointment.
Because electrostatic test equipment is arranged in the hazardous location that may have source of dust releasing, thus need to consider dustproof protection question, to make casing meet industrial requirement of explosion proof.
Except considering the requirement of explosion-proof aspect, also need to consider the requirement of installation aspect.Because test probe requirement level is installed, and require sealing, so increased the difficulty of installing.Static probe is a metal mold ball, after through heatproof wire, by plug, be connected on electrostatic test measuring instrument, probe does not allow to contact conducting metal.So while installing, first by static probe sheath on a PPR pipe, then PPR pipe is put into an iron pipe to play a supporting role, this iron pipe is placed on to the centre of flange, iron pipe is fixed with a polytetrafluoro clip, between flange and the ventilating opening of equipment, fix.
The present invention is by adopting static electricity scouting instrument, acquisition module, many serial ports board and MCGS software systems, and Real-Time Monitoring dust electrostatic voltage reaches the object of Real-Time Monitoring dust electrostatic.The administrative authority that is established as of this method for supervising provides real-time dynamic information, can effectively help managerial personnel to understand in time the duty of equipment, realizes the real-time management of production run; By more current and historical trend data and curve, the particularly multi-parameters model of bonding apparatus safe operation, can find early potential faults; Historical accumulation by MCGS software systems to real time data in production run, building database, managerial personnel can therefrom find the moving law of system, for the time between overhauls(TBO) of equipment, the replacing of parts provide foundation, are convenient to managerial personnel's maintenance.Dust electrostatic Design of Real-Time Monitor in the present invention is simple, and cost is low, and application prospect is wide, has obtained good technique effect.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of system of the present invention.
Fig. 2 is the electrostatic potential real-time curve monitoring window of MCGS of the present invention.
Fig. 3 is the electrostatic potential history curve monitoring window of MCGS of the present invention.
In Fig. 1: 1 is static electricity scouting instrument; 2 is resistance; 3 is acquisition module; 4 is direct supply; 5 is probe; 6 is computing machine.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
Fig. 1 is electrostatic data acquisition system design overall design proposal, the signal that the contactless vacuum static electricity detection instrument of EST201 is surveyed produces the voltage analog signal of 5V through the resistance of 500 ohm, simulating signal enters deep lattice 7017 acquisition modules that are connected with direct supply, through described deep lattice 7017 acquisition modules, be converted to digital signal, and export RS-485 serial communication signals, described digital signal enters many serial ports of computing machine MOXA CP-114 board, by the MCGS software systems of installing in computing machine, read and obtain dust electrostatic voltage value, the Real-Time Monitoring of realization to dust electrostatic.
Fig. 2 and Fig. 3 are electrostatic potential real-time curve and history curve.Comprise:
Startup system: start to measure in real time
Deposit system: deposit measurement data in
Warning system: alerting signal occurs during voltage over standard
Measuring voltage display window: the voltage value of display measurement
Electrostatic potential display window: the electrostatic potential numerical value of display measurement
History curve (6 hours) window: the voltage curve within 6 hours
History curve (1 hour) window: the voltage curve within 1 hour
After system Installation and Debugging, starting page click startup system, software systems start on-line measurement, measure after a period of time, can recall real time data form and historical data report, real time data form is in real time the value of the data object of current time is shown and printed by certain statement form, and it is the reflection to instantaneous flow.In MCGS software systems, real time data form can carry out configuration by keisen member and show real time data form by its printout.Historical data report is from historical data base, to extract deposit data recording, and historical data is shown and printed with certain form.In MCGS software systems, historical data report can carry out configuration by " history table " animation member and show real time data form by its printout.
Generation, notice and the storage of reporting to the police are completed automatically by real-time data base, to the response of actuation of an alarm by equipment operating managerial personnel as required, take Corresponding Countermeasures.In warning picture window, place alarm indication animation member, and it is carried out to configuration configuration, during operation, can realize the real-time demonstration to specified data object (correlation parameter of experiment table simulated failure) warning message.
Claims (9)
1. a dust electrostatic method of real-time, the signal that static electricity scouting instrument is surveyed produces voltage analog signal through resistance, described simulating signal enters the acquisition module being connected with direct supply, through described acquisition module, be converted to digital signal, and export RS-485 serial communication signals, described digital signal enters many serial ports of computing machine board, by the MCGS software systems of installing in computing machine, is read and is obtained dust electrostatic voltage value, realizes the Real-Time Monitoring to dust electrostatic.
2. dust electrostatic method of real-time according to claim 1, is characterized in that described resistance value is 350～600 ohm; Generation voltage analog signal is 2～10V.
3. dust electrostatic method of real-time according to claim 1, is characterized in that described static electricity scouting instrument is the contactless vacuum static electricity detection instrument of EST201.
4. dust electrostatic method of real-time according to claim 1, is characterized in that described acquisition module is deep lattice 7017 types.
5. dust electrostatic method of real-time according to claim 1, is characterized in that described many serial ports of computing machine board is MOXA CP-114 type, is built in computing machine.
6. dust electrostatic method of real-time according to claim 1, is characterized in that described static electricity scouting instrument is connected with at least one probe, pops one's head in as metal mold ball, by heatproof wire, is connected on static electricity scouting instrument.
7. dust electrostatic method of real-time according to claim 1, is characterized in that described system meets dustproof, requirement of explosion proof.
8. dust electrostatic method of real-time according to claim 1, is characterized in that described MCGS software systems have the function of real time data demonstration, the inquiry of historical data, real-time data base structure, warning, real time data form, historical data report.
9. dust electrostatic method of real-time according to claim 6, is characterized in that described probe level installs, and sealing.
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| CN201310493037.8A CN103728479B (en) | 2013-10-18 | 2013-10-18 | Dust static |
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| CN109669079A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | Chemical powder packaging process electrostatic detection methods |
| CN110333171A (en) * | 2019-08-12 | 2019-10-15 | 山东科技大学 | Coal handling system transfer point dust concentration detecting method and system |
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Effective date of registration: 20160531 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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