CN105589381A - Water content detection control system for oil pipeline - Google Patents
Water content detection control system for oil pipeline Download PDFInfo
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- CN105589381A CN105589381A CN201510971412.4A CN201510971412A CN105589381A CN 105589381 A CN105589381 A CN 105589381A CN 201510971412 A CN201510971412 A CN 201510971412A CN 105589381 A CN105589381 A CN 105589381A
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- module
- water content
- circuit
- petroleum pipeline
- control system
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/12—Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
Abstract
The invention discloses a water content detection control system for oil pipeline. The water content detection control system comprises a water content detection terminal and a remote monitoring terminal connected with the same. The water content detection terminal comprises a short wave emission sensor, an amplification filtering circuit, a detection rectification circuit, a I/V conversion module, a analog-to-digital conversion module, a microcontroller module, an oil-water separating device, and a data transmission module. The remote monitoring terminal comprises a control module, a display module, a key input module, an acousto-optic alarm module, and a radio frequency identification module, wherein the display module, the key input module, the acousto-optic alarm module, and the radio frequency identification module are connected with the control module. The water content detection control system measures the water content of the oil pipeline highly precisely in real time by using the short wave emission sensor, gives an alarm signal when the water content is over a set value, and then gives a startup control signal to a water separating device. The water content detection control system effectively prevents water from entering a lubricating system to corrode and wear a mechanical system and further causing faults, and has high cost performance, high intellectual degree, and stable and reliable operation.
Description
Technical field
The present invention relates to a kind of petroleum pipeline water content and detect control system, relate in particular to a kind of petroleum pipeline water content and detect control system, belong to the prosecution field of detecting.
Background technology
At present, water content in crude oil number be to closing one of key index of both parties economic interests, although various in crude oil
Mineral matter is various and complicated, but the factor that water content meter certainty of measurement is had the greatest impact is water content meter probe and hangs wax, because each crude oil paraffin content difference is added very greatly the difference of delivery temperature, thereby being produced erratically, water content meter probe hangs wax phenomenon. Hang after wax at probe, the outside cere of popping one's head in will form one deck medium to probe and crude oil, and along with the variation of dielectric layer, analyzer measured result will great changes will take place, cause measured result without any authenticity and practicality, thereby water content meter probe is carried out to paraffin removal is in time necessary.
It is the lateral opening at petroleum pipeline that current domestic most petroleum pipeline adopts moisture assay method, fix water content meter probe by ring flange, if there is hanging wax phenomenon in probe, all need be the in the situation that of pipeline shutdown, after dismounting ring flange, carry out cleaning treatment, in cleaning process, need a large amount of solvent naphthas or cleaning agent, not only strengthen cleaning cost but also polluted environment. In addition, because the stopping transportation power of examination and approval is higher, in the time that water content meter probe needs to clean, as can not granted stopping transportation, now data that water content meter is surveyed have no value for use completely, and therefore, this type water content meter is deadlock state substantially. Another kind method is to have increased a circulation bypass at petroleum pipeline, by crude oil by extracting out in oil transportation Trunk Line, feed back oily Trunk Line by forced circulation after circulating pump, stop valve, oil transportation bypass pipe, water content meter probe apparatus is on oil transportation bypass pipe, the method is closed stop valve in the situation that of stopping transportation not just can pull down cleaning to water content meter probe, but because the number of the content of wax in crude oil alters a great deal, cause water content meter probe to hang that wax thickness is irregular to follow, be difficult to accomplish to hang the timely cleaning of wax layer, measured data are still without much practical values.
If crude oil water content detects inaccurate, will directly affect oil well and oil reservoir dynamic analysis, destroy electric dehydration and think highly of electric field, reduce dehydrating effect, produce very large energy waste to crude oil transmission. Therefore the detection of crude oil water content is very important, always receive much attention, many measuring methods is successively proposed, design multi-form water cut test instrument, but because crude oil water content measurement is subject to the impact of many factors, and there is complicated non-linear relation with its influence factor, lack all the time a kind of not only simple and efficient, but also accurate practical forecast model.
For example application number is the online water content meter of a kind of crude oil of " 201210300479.1 ", there is a valve body with valve pocket, the oil-in and the oil return opening that are communicated with valve pocket are set on valve body, on oil-in, connect with oil circulating pump and oil inlet pipe stop valve and be connected to the oil inlet pipe of oil transportation Trunk Line, on oil return opening, connect with oil return pipe stop valve and be connected to the oil return pipe of oil transportation Trunk Line, on two relative sides of valve body, one of them lateral means water content meter is popped one's head in and another lateral means pull bar, water content meter probe front portion and pull bar front portion are stretched in valve pocket, stretch out outside valve body at pull bar rear portion, the fixing fluorine gum cover with centre bore of front end of pull bar, central aperture water content meter probe the size adaptation of fluorine gum cover, the rear end of pull bar is connected with push-and-pull power set. energy self-timing of the present invention, fixed ground paraffin removal, oil transportation Trunk Line does not need stopping transportation, does not need dismounting, the manual water content meter probe that cleans, and makes water content meter survey data true and accurate, makes crude oil simple and reliable containing aquametry online.
And for example application number is a kind of Water in oil monitor of " 201220676751.1 ", comprise electromagnetic wave launcher, survey sniffer, analog-digital converter, processor and the actuation means of monitoring electromagnetic wave energy in medium, described sniffer connects described analog-digital converter, and described electromagnetic wave launcher, described analog-digital converter, described actuation means are all connected with described processor. Above-mentioned Water in oil monitor is both simple and efficient, accurately practical again. Can be widely used in crude oil dehydrating plant, transfer station, measuring station, unloading Stations, oil pipeline and oil plant etc. needs the position of metering, monitoring Water in oil amount.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of petroleum pipeline water content to detect control system for the deficiency of background technology.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of petroleum pipeline water content detects control system, comprise water content sense terminals and connected remote monitoring terminal, described water content sense terminals comprises shortwave emission sensor, filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module, micro controller module, oily-water seperating equipment and data transmission module; Described shortwave emission sensor connects micro controller module by filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module successively, and described data transmission module and oily-water seperating equipment are connected on the corresponding port of micro controller module; Described remote monitoring terminal comprises control module and connected display module, keyboard input module, sound and light alarm module and radio frequency identification module;
Wherein, shortwave emission sensor, for detecting in real time petroleum pipeline water content parameter and then generation current signal;
Filtering and amplifying circuit, for carrying out amplification filtering processing by generation current signal;
Detection rectification circuit, for carrying out detection rectification processing by the signal of telecommunication after treatment amplification filtering;
I/V modular converter, for converting the current signal of detection rectification processing to analog voltage signal;
Analog-to-digital conversion module, for converting analog voltage signal to the signal of telecommunication and then transferring to micro controller module;
Micro controller module, for drawing the water content of petroleum pipeline according to the signal of telecommunication analysis receiving, and then transfers to remote monitoring terminal by data transmission module;
Radio frequency identification module, for receiving the water content of the petroleum pipeline transmitting with identification data transport module, and then transfers to control module;
Control module, for the water content of the petroleum pipeline of reception is contrasted with setting water content threshold value, sets water content threshold value if exceed, and gives the alarm by sound and light alarm module, and then starts oily-water seperating equipment;
Display module, for showing in real time petroleum pipeline water content parameter;
Keyboard input module, for presetting water content threshold value;
Described radio frequency identification module comprises coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, mu balanced circuit; Described coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described mu balanced circuit is connected with amplitude limit bleeder circuit, amplitude limit testing circuit respectively, and described coupling circuit is for being coupled to radio frequency identification module by input signal; The voltage amplitude of described amplitude limit testing circuit after for detection of rectification; Described amplitude limit bleeder circuit is for releasing unnecessary electric current; The supply voltage that described mu balanced circuit is used for carrying out voltage stabilizing processing stable output is for other circuit module.
The further preferred version that detects control system as a kind of petroleum pipeline water content of the present invention, described micro controller module adopts C8051F350 single-chip microcomputer.
The further preferred version that detects control system as a kind of petroleum pipeline water content of the present invention, the chip model of described analog-to-digital conversion module is MSP430FG4619IPZ.
The further preferred version that detects control system as a kind of petroleum pipeline water content of the present invention, described keyboard input module adopts matrix keyboard.
The further preferred version that detects control system as a kind of petroleum pipeline water content of the present invention, described display module is LCD display.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, the present invention adopts its moisture situation of measurement of shortwave emission sensor real-time high-precision, and then exceedes setting value and time send alarm signal, and then provides the startup control signal of moisture separation equipment; Effectively avoid lubricating system to enter burn into that moisture the causes mechanical system fault of bringing of wearing and tearing;
2, to have cost performance high in the present invention, and intelligent degree is high, and working stability is reliable.
Detailed description of the invention
Below technical scheme of the present invention is described in further detail:
A kind of petroleum pipeline water content detects control system, comprise water content sense terminals and connected remote monitoring terminal, described water content sense terminals comprises shortwave emission sensor, filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module, micro controller module, oily-water seperating equipment and data transmission module; Described shortwave emission sensor connects micro controller module by filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module successively, and described data transmission module and oily-water seperating equipment are connected on the corresponding port of micro controller module; Described remote monitoring terminal comprises control module and connected display module, keyboard input module, sound and light alarm module and radio frequency identification module;
Wherein, shortwave emission sensor, for detecting in real time petroleum pipeline water content parameter and then generation current signal;
Filtering and amplifying circuit, for carrying out amplification filtering processing by generation current signal;
Detection rectification circuit, for carrying out detection rectification processing by the signal of telecommunication after treatment amplification filtering;
I/V modular converter, for converting the current signal of detection rectification processing to analog voltage signal;
Analog-to-digital conversion module, for converting analog voltage signal to the signal of telecommunication and then transferring to micro controller module;
Micro controller module, for drawing the water content of petroleum pipeline according to the signal of telecommunication analysis receiving, and then transfers to remote monitoring terminal by data transmission module;
Radio frequency identification module, for receiving the water content of the petroleum pipeline transmitting with identification data transport module, and then transfers to control module;
Control module, for the water content of the petroleum pipeline of reception is contrasted with setting water content threshold value, sets water content threshold value if exceed, and gives the alarm by sound and light alarm module, and then starts oily-water seperating equipment;
Display module, for showing in real time petroleum pipeline water content parameter;
Keyboard input module, for presetting water content threshold value;
Described radio frequency identification module comprises coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, mu balanced circuit; Described coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described mu balanced circuit is connected with amplitude limit bleeder circuit, amplitude limit testing circuit respectively, and described coupling circuit is for being coupled to radio frequency identification module by input signal; The voltage amplitude of described amplitude limit testing circuit after for detection of rectification; Described amplitude limit bleeder circuit is for releasing unnecessary electric current; The supply voltage that described mu balanced circuit is used for carrying out voltage stabilizing processing stable output is for other circuit module.
Wherein, shortwave emission sensor, for detecting in real time petroleum pipeline water content parameter and then generation current signal;
Filtering and amplifying circuit, for carrying out amplification filtering processing by generation current signal;
Detection rectification circuit, for carrying out detection rectification processing by the signal of telecommunication after treatment amplification filtering;
I/V modular converter, for converting the current signal of detection rectification processing to analog voltage signal;
Analog-to-digital conversion module, for converting analog voltage signal to the signal of telecommunication and then transferring to micro controller module;
Micro controller module, for drawing the water content of petroleum pipeline according to the signal of telecommunication analysis receiving, and then transfers to remote monitoring terminal by data transmission module;
Radio frequency identification module, for receiving the water content of the petroleum pipeline transmitting with identification data transport module, and then transfers to control module;
Control module, for the water content of the petroleum pipeline of reception is contrasted with setting water content threshold value, sets water content threshold value if exceed, and gives the alarm by sound and light alarm module, and then starts oily-water seperating equipment;
Display module, for showing in real time petroleum pipeline water content parameter;
Keyboard input module, for presetting water content threshold value.
Wherein, described micro controller module adopts C8051F350 single-chip microcomputer, and the chip model of described analog-to-digital conversion module is MSP430FG4619IPZ, and described keyboard input module adopts matrix keyboard, and described display module is LCD display.
The present invention adopts its moisture situation of measurement of shortwave emission sensor real-time high-precision, and then exceedes setting value and time send alarm signal, and then provides the startup control signal of moisture separation equipment; Effectively avoid lubricating system to enter burn into that moisture the causes mechanical system fault of bringing of wearing and tearing; It is high that it has cost performance, and intelligent degree is high, and working stability is reliable.
The present invention adopts C8051F350 single-chip microcomputer Water in oil instrument while being the high-precision real of core. It uses LCD display display measurement value, sends alarm signal, and provide the startup control signal of oily water separating equipment in the time exceeding setting value.
A/D changes and adopts the ADC that 12 of carrying of MSP430FG4619IPZ, maximum rate are 200KSPS, its voltage reference can be chosen as internal reference or outside reference, save outside ADC chip, greatly simplified the design of hardware, can meet the requirement of precision simultaneously.
The present invention designs a kind of petroleum pipeline water content and detects control system, comprises shortwave emission sensor, I/V modular converter, analog-to-digital conversion module, micro controller module, display module, keyboard input module, sound and light alarm module, oily-water seperating equipment and power module; It adopts its moisture situation of measurement of shortwave emission sensor real-time high-precision, and then exceedes setting value and time send alarm signal, and then provides the startup control signal of moisture separation equipment; Effectively avoid lubricating system to enter burn into that moisture the causes mechanical system fault of bringing of wearing and tearing; It is high that it has cost performance, and intelligent degree is high, and working stability is reliable.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the present invention under the identical meaning of the general understanding of those of ordinary skill in field. Should also be understood that such as those terms that define in general dictionary and should be understood to have the meaning consistent with meaning in the context of prior art, unless and definition as here, can not explain by idealized or too formal implication.
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought proposing according to the present invention, and any change of doing on technical scheme basis, within all falling into protection domain of the present invention. Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skill in the art, can also or else departs under the prerequisite of aim of the present invention and make a variety of changes.
Claims (5)
1. a petroleum pipeline water content detects control system, it is characterized in that: comprise water content sense terminals and connected remote monitoring terminal, described water content sense terminals comprises shortwave emission sensor, filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module, micro controller module, oily-water seperating equipment and data transmission module; Described shortwave emission sensor connects micro controller module by filtering and amplifying circuit, detection rectification circuit, I/V modular converter, analog-to-digital conversion module successively, and described data transmission module and oily-water seperating equipment are connected on the corresponding port of micro controller module; Described remote monitoring terminal comprises control module and connected display module, keyboard input module, sound and light alarm module and radio frequency identification module;
Wherein, shortwave emission sensor, for detecting in real time petroleum pipeline water content parameter and then generation current signal;
Filtering and amplifying circuit, for carrying out amplification filtering processing by generation current signal;
Detection rectification circuit, for carrying out detection rectification processing by the signal of telecommunication after treatment amplification filtering;
I/V modular converter, for converting the current signal of detection rectification processing to analog voltage signal;
Analog-to-digital conversion module, for converting analog voltage signal to the signal of telecommunication and then transferring to micro controller module;
Micro controller module, for drawing the water content of petroleum pipeline according to the signal of telecommunication analysis receiving, and then transfers to remote monitoring terminal by data transmission module;
Radio frequency identification module, for receiving the water content of the petroleum pipeline transmitting with identification data transport module, and then transfers to control module;
Control module, for the water content of the petroleum pipeline of reception is contrasted with setting water content threshold value, sets water content threshold value if exceed, and gives the alarm by sound and light alarm module, and then starts oily-water seperating equipment;
Display module, for showing in real time petroleum pipeline water content parameter;
Keyboard input module, for presetting water content threshold value;
Described radio frequency identification module comprises coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, mu balanced circuit; Described coupling circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described mu balanced circuit is connected with amplitude limit bleeder circuit, amplitude limit testing circuit respectively, and described coupling circuit is for being coupled to radio frequency identification module by input signal; The voltage amplitude of described amplitude limit testing circuit after for detection of rectification; Described amplitude limit bleeder circuit is for releasing unnecessary electric current; The supply voltage that described mu balanced circuit is used for carrying out voltage stabilizing processing stable output is for other circuit module.
2. a kind of petroleum pipeline water content according to claim 1 detects control system, it is characterized in that: described micro controller module adopts C8051F350 single-chip microcomputer.
3. a kind of petroleum pipeline water content according to claim 1 detects control system, it is characterized in that: the chip model of described analog-to-digital conversion module is MSP430FG4619IPZ.
4. a kind of petroleum pipeline water content according to claim 1 detects control system, it is characterized in that: described keyboard input module adopts matrix keyboard.
5. a kind of petroleum pipeline water content according to claim 1 detects control system, it is characterized in that: described display module is LCD display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510971412.4A CN105589381A (en) | 2015-12-22 | 2015-12-22 | Water content detection control system for oil pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510971412.4A CN105589381A (en) | 2015-12-22 | 2015-12-22 | Water content detection control system for oil pipeline |
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| CN105589381A true CN105589381A (en) | 2016-05-18 |
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| CN201510971412.4A Pending CN105589381A (en) | 2015-12-22 | 2015-12-22 | Water content detection control system for oil pipeline |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449390U (en) * | 2009-05-26 | 2010-05-05 | 潍坊华祺仪器制造有限公司 | Crude oil water-bearing detection apparatus |
| CN202486130U (en) * | 2012-01-19 | 2012-10-10 | 陕西星辰石油科技有限责任公司 | Water content measuring device for crude oil of wellhead |
| CN202994786U (en) * | 2012-12-18 | 2013-06-12 | 新疆金牛能源科技有限责任公司 | Remote crude oil index detection system |
| CN103185732A (en) * | 2012-12-10 | 2013-07-03 | 北京乾达源科技有限公司 | Monitoring method and monitoring instrument for water content in oil |
| CN104516381A (en) * | 2013-09-26 | 2015-04-15 | 上海华虹集成电路有限责任公司 | Rectification and voltage stabilization circuit for radio frequency identification |
| CN105115991A (en) * | 2015-08-31 | 2015-12-02 | 无锡伊佩克科技有限公司 | High-precision oil delivery pipe water content detection and control system |
| CN105116932A (en) * | 2015-08-31 | 2015-12-02 | 无锡伊佩克科技有限公司 | Oil pipeline water content monitoring and early warning system |
-
2015
- 2015-12-22 CN CN201510971412.4A patent/CN105589381A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449390U (en) * | 2009-05-26 | 2010-05-05 | 潍坊华祺仪器制造有限公司 | Crude oil water-bearing detection apparatus |
| CN202486130U (en) * | 2012-01-19 | 2012-10-10 | 陕西星辰石油科技有限责任公司 | Water content measuring device for crude oil of wellhead |
| CN103185732A (en) * | 2012-12-10 | 2013-07-03 | 北京乾达源科技有限公司 | Monitoring method and monitoring instrument for water content in oil |
| CN202994786U (en) * | 2012-12-18 | 2013-06-12 | 新疆金牛能源科技有限责任公司 | Remote crude oil index detection system |
| CN104516381A (en) * | 2013-09-26 | 2015-04-15 | 上海华虹集成电路有限责任公司 | Rectification and voltage stabilization circuit for radio frequency identification |
| CN105115991A (en) * | 2015-08-31 | 2015-12-02 | 无锡伊佩克科技有限公司 | High-precision oil delivery pipe water content detection and control system |
| CN105116932A (en) * | 2015-08-31 | 2015-12-02 | 无锡伊佩克科技有限公司 | Oil pipeline water content monitoring and early warning system |
Non-Patent Citations (1)
| Title |
|---|
| 刘海江: "高精度油中含水仪的研制", 《自动化与仪表》 * |
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Application publication date: 20160518 |