CN100491997C - Finished oil water ratio on-line real time measuring apparatus - Google Patents
Finished oil water ratio on-line real time measuring apparatus Download PDFInfo
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- CN100491997C CN100491997C CNB2006100383235A CN200610038323A CN100491997C CN 100491997 C CN100491997 C CN 100491997C CN B2006100383235 A CNB2006100383235 A CN B2006100383235A CN 200610038323 A CN200610038323 A CN 200610038323A CN 100491997 C CN100491997 C CN 100491997C
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Abstract
The present invention discloses an on-line real-time measurement method of finished oil water content and its measurement equipment. Said measurement equipment includes the following several portions: tank dome, ultrasonic probe, ultrasonic level measuring device, liquid pressure intensity pressure-guiding pipe, air pressure intensity pressure-guiding pipe, pressure difference sensor, differential pressure measuring device and computer. Said invention also provides its working principle and its operation method and steps.
Description
Technical field
The present invention relates to measurement mechanism, be specifically related to the finished oil water ratio on-line real time measuring device.
Background technology
At planned economy age and reform and opening-up initial stage, the storage of petroleum prospecting, collection, refinement and product oil, transportation, sale are all managed, are specialized in by relevant government department one continuous line, and the quality of product oil voluntarily detects control by national standard by oil refining enterprise from the source.At private enterprise and private vehicle proportion seldom, refuelling station, the whole nation all belongs to same system staterun enterprise, group refueling is not received cash without exception and is only received cooking oil coupon, especially water percentage is substantially all under these situations more than the criterion of acceptability for the quality of product oil, and people feel to there is no need storage, the transportation to product oil, one-tenth oil quality and the actual water percentage of selling each link circulation monitored.
Since nearly 5 years of last decade, especially the Tenth Five-Year Plan (2001-2005), along with China's sustained economic development and people income and living standard improve constantly, society and private vehicle recoverable amount grow continuously and fast; Build up highway, the high-grade highway mileage increases sharply, the China's refined oil demand also is multiplied; Production, import and export, storage, the transportation of product oil simultaneously, sell each link and also progressively open to nongovernmental fund, refuelling station under all types of ownership spreads all over all parts of the country.The refuelling station, various places nearly all adopts cash or the oiling of swiping the card at present, driven by interests, thereby juggle things on the oiling flowmeter of being everlasting institute's volume read-out given short weight in the refuelling station of some disappearance business ethics, or selling product oil mixed in violation of rules and regulations by a certain percentage gimmick such as tap water and lead the consumer into a trap, all often there is generation the illegal phenomenon of this class various places, consumers in general are very discontented and helpless, and numerous and confused in every way strong appealing various places at different levels government strengthens the supervision and the law enforcement dynamics of Oil Product Market.
China oil production and oil refining enterprise and technical supervision at different levels, metrological service continue to use the determination of distillation moisture method of " petroleum products aquametry " defined of GB260-77 (confirming in 1988) always to finished oil water ratio, this method stipulates that each tested product oil sample is 100 milliliters, after needing to add the anhydrous industrial solvent of equivalent, a small amount of unglazed porcelain sheet, float stone or kapillary, slowly heat with electric furnace or spirit lamp again, moisture in the product oil is heated after all distillations, condensation collect, obtains the water percentage of censorship product oil sample through simple computation.The problem that this kind standard method exists is: 1, whenever make a sample and approximately need 2 hours, can't accomplish real-time online measuring; 2,, be difficult to comply with online design self-operated measuring unit or system accordingly because above-mentioned all links of determination of distillation moisture method are manual operations.
Shortage is sold water content in oil rapid assay methods and device to real-time monitoring means of finished oil water ratio in the product oil storage field (jar) and product oil edible oil vending machine, is to perplex Oil Product Market effectively supervision and the two big technical barriers of in time enforcing the law.
Summary of the invention
The objective of the invention is to: a kind of finished oil water ratio on-line real time measuring device is provided, and this measurement device oil depot passes in and out time, quantity, the water percentage of oil at every turn, and real-time online measuring is monitored in real time and managed, and avoids the generation of violations of rules and regulations.
Technical solution of the present invention is: this finished oil water ratio on-line real time measuring device at first adopts product oil liquid level in the contactless range measurement principle measuring vessel of ultrasound wave, according to product oil pressure in the differential pressure pick-up signal measurement container, go out finished oil water ratio by embedded calculation element COMPREHENSIVE CALCULATING at last then.
This finished oil water ratio on-line real time measuring device comprises embedded calculation element, differential pressure measurement mechanism, ultrasonic wave liquid level measuring apparatus, ultrasonic probe, differential pressure pick-up, by middle position ultrasonic probe is installed at product oil storage field (jar) or product oil edible oil vending machine top, ultrasonic probe connects ultrasonic wave liquid level measuring apparatus; The liquid pressure pressure guiding pipe is installed in bottom at product oil storage field (jar) or product oil edible oil vending machine, the atmospheric pressure pressure guiding pipe is installed on top at product oil storage field (jar) or product oil edible oil vending machine, liquid pressure pressure guiding pipe and atmospheric pressure pressure guiding pipe are connected on the differential pressure pick-up, and differential pressure pick-up connects the differential pressure measurement mechanism; Ultrasonic wave liquid level measuring apparatus is connected embedded calculation element with the differential pressure measurement mechanism, the online real-time measurement apparatus of whole formation.
Ultrasonic wave liquid level measuring apparatus is to utilize the propagation characteristic of ripple in medium, and specifically, when ultrasound wave ran into phase interface in the air, some reflected, and another part then is refracted in the adjacent media.When ultrasound wave is propagated in the liquid or solid by gas, when perhaps propagating in the air by solid, liquid, therefore because differing too greatly and almost all, Media density reflection takes place, at container top ultrasonic probe being installed is transmitter and receiver, the ultrasound wave of launching is reflected in oil, gas phase interface, and, measure ultrasound wave from being transmitted into the mistiming of reception by the receiver reception, just can measure liquid level by ultrasonic wave liquid level measuring apparatus.Ultrasound wave velocity of propagation in air is C, and the travel-time is Δ t, and then ultrasonic probe claims the distance of ultrasonic transducer to oil, gas phase interface again
So measure just liquid level L as can be known of Δ t.
Measure from container bottom liquid pressure pressure guiding pipe and container upper air pressure-guided pipe differential pressure by the differential pressure pick-up impression, record the pressure of the oil product in the container by the differential pressure measurement mechanism.
The principle of work of finished oil water ratio on-line real time measuring is as follows: measure oil level in the container by ultrasonic probe and ultrasonic wave liquid level measuring apparatus, pressure by oil product in differential pressure pick-up and the differential pressure measurement mechanism measuring vessel, according to the density that the oil level and the oil pressure of product oil in the container calculates product oil in this container, just can calculate finished oil water ratio in this container easily by this model standard oil density and contained mineralising moisture density by embedded calculation element again.Because of crude oil place of production difference, between 0.814～0.826, the general normal extractive process of product oil exists a spot of mineralized water density to be about 1.01 to its standard finished products oil density usually.
Finished oil water ratio on-line real time measuring device of the present invention has the following advantages: 1. can monitor automatically, in the storage container at every turn into and out of time, quantity (volume, weight), the water percentage of oil; 2. scene (CAN) bus interface that can advanced design constitutes the product oil remote monitoring and the management information network of different scales easily.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1. embedded calculation element, 2. differential pressure measurement mechanism, 3. ultrasonic wave liquid level measuring apparatus, 4. ultrasonic probe, 5. differential pressure pick-up, 6. oil inlet pipe, 7. flowline, 8. liquid pressure pressure guiding pipe, 9. gas pressure intensity pressure guiding pipe, 10. product oil storage field.
Embodiment
This online in real time measurement mechanism: at first adopt product oil liquid level in the contactless range measurement principle measuring vessel of ultrasound wave, according to product oil pressure in the differential pressure pick-up signal measurement container, go out finished oil water ratio by embedded calculation element COMPREHENSIVE CALCULATING at last then.
This online in real time measurement mechanism as shown in Figure 1, mainly form by embedded calculation element 1, differential pressure measurement mechanism 2, ultrasonic wave liquid level measuring apparatus 3, ultrasonic probe 4, differential pressure pick-up 5, by ultrasonic probe 4 is installed near the middle position, ultrasonic probe 4 connects ultrasonic wave liquid level measuring apparatus 3 at product oil storage field 10 tops; Near the close middle position in the bottom of product oil storage field 10 or product oil edible oil vending machine, liquid pressure pressure guiding pipe 8 is installed, atmospheric pressure pressure guiding pipe 9 is installed on top at product oil storage field 10 or product oil edible oil vending machine, liquid pressure pressure guiding pipe 8 and atmospheric pressure pressure guiding pipe 9 are connected on the differential pressure pick-up 5, and differential pressure pick-up 5 connects differential pressure measurement mechanism 2; Ultrasonic wave liquid level measuring apparatus 3 is connected embedded calculation element 1 with differential pressure measurement mechanism 2, the online real-time measurement apparatus of whole formation.
Measure oil level (highly) in the container by ultrasonic probe 4 and ultrasonic wave liquid level measuring apparatus 3, pressure by oil product in differential pressure pick-up 5 and differential pressure measurement mechanism 2 measuring vessels, by oil level and the oil pressure of embedded calculation element 1 according to product oil in the container, calculate the density of product oil in this container, calculate finished oil water ratio in this container easily by this model standard oil density and mineralized water density again.
Ultrasonic wave liquid level measuring apparatus among the present invention, differential pressure measurement mechanism, embedded calculation element all are the existing computing equipments of measuring.
Note during installation: its differential pressure sensitizing range and product oil bottom inside surface were in the same plane when differential pressure pick-up was installed; The oil inlet pipe outlet splits the container both sides near the product oil container bottom and with container bottom liquid pressure pressure guiding pipe.
When container top air pressure because of product oil volatilization and ambient atmosphere pressure when inconsistent, when the high end of oil level, change, when in the container during the moisture skewness of product oil (otherwise higher also more anti-usually) near container bottom oil reservoir water percentage, the present invention need not manually to participate in again to demarcate and calibration, realizes measuring and indicating to automatic identifications of regular container online in real time such as cylindrical shape, rectangular parallelepipeds, automatically continually varying oil level in the container, value, oil product cumulative volume, average moisture content.
Claims (3)
1. finished oil water ratio on-line real time measuring device, it is characterized in that: this measurement mechanism comprises embedded calculation element (1), differential pressure measurement mechanism (2), ultrasonic wave liquid level measuring apparatus (3), ultrasonic probe (4), differential pressure pick-up (5), at product oil storage field (10) top ultrasonic probe (4) is installed, ultrasonic probe (4) connects ultrasonic wave liquid level measuring apparatus (3); Liquid pressure pressure guiding pipe (8) is installed in bottom at product oil storage field (10), atmospheric pressure pressure guiding pipe (9) is installed on top at product oil storage field (10), liquid pressure pressure guiding pipe (8) and atmospheric pressure pressure guiding pipe (9) are connected on the differential pressure pick-up (5), and differential pressure pick-up (5) connects differential pressure measurement mechanism (2); Ultrasonic wave liquid level measuring apparatus (3) is connected embedded calculation element (1) with differential pressure measurement mechanism (2).
2. finished oil water ratio on-line real time measuring device according to claim 1 is characterized in that: when differential pressure pick-up (5) was installed, its differential pressure sensitizing range and product oil storage field (10) bottom interior surface were in the same plane.
3. finished oil water ratio on-line real time measuring device according to claim 1 is characterized in that: the outlet that is installed in the oil inlet pipe (6) on the product oil storage field (10) near the bottom of product oil storage field and with the product oil storage field bottom on the liquid pressure pressure guiding pipe (8) that is connected split the both sides of product oil storage field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100383235A CN100491997C (en) | 2006-02-16 | 2006-02-16 | Finished oil water ratio on-line real time measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100383235A CN100491997C (en) | 2006-02-16 | 2006-02-16 | Finished oil water ratio on-line real time measuring apparatus |
Publications (2)
| Publication Number | Publication Date |
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| CN1811404A CN1811404A (en) | 2006-08-02 |
| CN100491997C true CN100491997C (en) | 2009-05-27 |
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| CNB2006100383235A Expired - Fee Related CN100491997C (en) | 2006-02-16 | 2006-02-16 | Finished oil water ratio on-line real time measuring apparatus |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100570287C (en) * | 2007-12-14 | 2009-12-16 | 西安长庆科技工程有限责任公司 | Built-in pressure sampling method for differential pressure levelmeter |
| CN102305847B (en) * | 2011-07-29 | 2014-04-09 | 武汉第二船舶设计研究所 | Device for measuring water in oil on line |
| CN102411041B (en) * | 2011-11-23 | 2014-08-06 | 娄跃辉 | Device for testing average water content of uniform liquid in two-point vertical storage tank |
| CN104251874A (en) * | 2014-09-10 | 2014-12-31 | 李惠杰 | On-line measure apparatus for water content and density and measure method thereof |
| CN109506739A (en) * | 2018-10-12 | 2019-03-22 | 安徽中控仪表有限公司 | The metering method of oil well single tank on-line metering device and its oil and gas and water phase flow rate |
| CN110595945B (en) * | 2019-09-03 | 2022-07-05 | 吴霁蓉 | Method for measuring fluid components |
| CN110849770A (en) * | 2019-12-02 | 2020-02-28 | 洛阳大工检测技术有限公司 | Waste oil product recovery online detection barrel and detection method |
| CN111380595B (en) * | 2020-03-29 | 2021-02-23 | 华中科技大学 | Salt cavern gas storage gas-liquid interface measuring method and system based on sound velocity difference |
-
2006
- 2006-02-16 CN CNB2006100383235A patent/CN100491997C/en not_active Expired - Fee Related
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| "储罐液位检测技术研究". 丁涛.合肥工业大学硕士论文. 2005 |
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| CN1811404A (en) | 2006-08-02 |
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