CN105278357A - Lower discharge method and device by utilizing difference of sound speed to automatically separate liquid media of different proportions - Google Patents
Lower discharge method and device by utilizing difference of sound speed to automatically separate liquid media of different proportions Download PDFInfo
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- CN105278357A CN105278357A CN201410278200.3A CN201410278200A CN105278357A CN 105278357 A CN105278357 A CN 105278357A CN 201410278200 A CN201410278200 A CN 201410278200A CN 105278357 A CN105278357 A CN 105278357A
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Abstract
The invention relates to a lower discharge method and device by utilizing the difference of sound speed to automatically separation liquid media of different proportions. Cutting is controlled by comparing the spreading speed of a supersonic probe (4-1) with reference data at the same temperature and setting cutting time T in advance, and double-guarantee cutting is realized; and the reference data is obtained via a reference cylinder (10) and a supersonic probe (4-4) or via digital carriers stored in an intelligent control system (5). The reference data can be used to greatly improve the resolution at the oil-water interface of the supersonic probe (4-1). Extremely high separating efficiency is realized by limiting the relation among the distance H between the supersonic probe (4-1) and a cutting pipe (11), the falling speed v of a heavy medium in a cutting can, and reaction time t of a solenoid valve (7); and light media entering the cutting can (3) are back flown to the largest limit via design of the connection manner between an inlet pipe and the cutting can as well as top structure of the cutting can (3) and addition of a feedback pump.
Description
Technical field
The present invention relates to a kind of speed of sound differential that utilizes from the method for different specific weight immiscible liquid and device, particularly relate to a kind of lower emission type method and the device that utilize velocity of sound difference Automatic continuous to be separated liquids having different specific weight medium.
Background technology
The present inventor is in the Chinese patent of CN103425067A at application publication number, disclose a kind of velocity of sound difference that utilizes identify liquids having different specific weight medium and control the system of its discharge, publication date is that on Dec 04th, 2013 is by arranging a lower emission type blank tank, benchmark cylinder and thermometer are set in blank tank, carry out blank control by the ultrasonic echo time on contrast blank tank and benchmark cylinder.
It is in the Chinese patent of CN1637414 in the patent No. that lower row's mode blank tank solves inventor, publication date is on July 13rd, 2005, upper emission type blank tank greasy dirt is easy to assemble, the shortcoming of bad cleaning, the existence that the setting of benchmark cylinder also solves due to mixolimnion causes ultrasonic probe cannot accurately locate marginal problem.
But be in the Chinese patent of CN103425067A at application publication number, the condition of benchmark cylinder is not limited, and benchmark cylinder and thermometer be arranged in blank tank for a long time, also can affect the accuracy of measurement.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of speed of sound differential that utilizes from the lower-discharging type method of liquids having different specific weight medium, the method comprises, when be arranged on the ultrasonic probe 4-1 on blank tank 3 at the same temperature ultrasound wave in dense medium, velocity of propagation is identical with reference data time, send electromagnetic valve of instruction 7 by intelligent control system 5 to open, start blank; Be arranged on ultrasonic probe 4-1 on blank tank 3 at the same temperature ultrasound wave when velocity of propagation is different from reference data in dense medium, sends electromagnetic valve of instruction 7 by intelligent control system 5 and close, stop blank.
For solving the problems of the technologies described above, reference data described in the present invention is the velocity of propagation fed back in dense medium in benchmark cylinder of ultrasonic probe 4-4 or draws in the present system through overtesting, the velocity of propagation of ultrasonic probe 4-1 in dense medium and the relation of temperature, find the respective items that temperature is identical.
For ensureing separation efficiency, when stopping blank, from the reaction time t issuing instructions to closed electromagnetic valve, the interphase of two kinds of insoluble liq drops to the charging aperture square section of the blank pipe 11 be parallel to or higher than blank pipe.
Stop after blank, enter light substance in blank tank 3 along the overhead reflux of blank tank and feed pipe or be pumped back in storage tank by feed back.
Preferred as one of the present invention, be also set with blank time T in system, after starting blank, the blank time arrives, and stops blank.
Preferred as another kind of the present invention, when this separation method is diesel oil dewatering, adopt contact probe method auxiliary resolution profit boundary.
Another technical matters to be solved by this invention is to provide a kind of lower-discharging type device utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium, comprise the valve 2 be connected with storage tank 1, blank tank 3, level is arranged on two external labeling type ultrasonic probe 4-1 and 4-3 on blank tank, blank tank 3 top is provided with feed back pump, blank tank is connected with blank pipe 11 for 3 times, blank pipe 11 is installed solenoid valve 7, the built-in benchmark cylinder 10 of blank tank 3, benchmark cylinder 10 is provided with external labeling type ultrasonic probe 4-4, there is one, thermometer on benchmark cylinder 10 side, whole system is controlled by intelligent controller 5.
For solving the problems of the technologies described above, the design consideration of described benchmark cylinder 10 is when temperature is identical, when being all dense medium in blank tank and benchmark cylinder, the velocity of propagation of the ultrasound wave that ultrasonic probe 4-1 with 4-4 detects in dense medium is identical, or by stored digital carrier storage in intelligent controller 5, by when being dense medium in blank tank, the relation curve between the velocity of propagation that ultrasonic probe 4-1 detects and temperature is stored in as reference data;
Height between ultrasonic probe 4-1 and blank pipe 11 mouth of pipe is H, and dense medium is v by the decline rate of blank pipe in blank tank, and the reaction time of solenoid valve 7 is t, and the pass between three is, H >=vt, wherein t≤5s;
Feed pipe top is connected with blank tank, the top level of blank tank 3 or extend in direction from high to low along feedstock direction.
Preferred as one of the present invention, feed pipe top is parallel or connect higher than blank tank 3 top.
Preferred as another kind of the present invention, the connected mode of feed pipe and blank tank and the design of blank tank top are selected from following eight kinds of methods.
Feed pipe horizontal direction extends to the other end from charging one end level with the parallel connection in blank tank 3 top, blank tank 3 top;
Feed pipe horizontal direction connects higher than blank tank 3 top, and blank tank 3 top extends from charging one end level to the other end;
Feed pipe horizontal direction and the parallel connection in blank tank 3 top, blank tank 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe horizontal direction connects higher than blank tank 3 top, and blank tank 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and blank tank 3 top extends from charging one end level to the other end;
Feed pipe horizontal direction connects higher than blank tank 3 top, and blank tank 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to be connected with blank tank 3 top, and blank tank 3 top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and connect higher than blank tank 3 top, blank tank 3 top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree.
Another is preferred as of the present invention, described feed back pump works as blank tank 3 upper water at ordinary times, be arranged on centre position, blank tank top, when blank tank 3 top extends to the other end from high to low from charging one end, feed back pump is arranged on the edge of feed pipe one end, blank tank top.
Another is preferred as of the present invention, when this separation method is diesel oil dewatering, higher than the position of ultrasonic probe 4-1 the position of valve 2 or blank tank 3 in, installs a contact measurement device for auxiliary detection.
Accompanying drawing explanation
Fig. 1 is the lower-discharging type method flow schematic diagram utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium.
Fig. 2 is the lower-discharging type device schematic diagram utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium.
Fig. 3 is the structure for amplifying skeleton view representing lower-discharging type blank tank in Fig. 1.
Fig. 4 represents feed pipe and blank tank annexation schematic diagram in Fig. 1.
Fig. 5 is equipped with in the system of benchmark cylinder, and dehydration test deviates from the oleaginousness result broken line graph of water for ten times.
Fig. 6 is equipped with in the system of benchmark cylinder, oleaginousness result broken line graph in dehydration test ten blank tanks.
Fig. 7 is the velocity of propagation curve of ultrasound wave in water under different temperatures.
Fig. 8 is equipped with in the system of digital carrier, and dehydration test deviates from the oleaginousness result broken line graph of water for ten times.
Fig. 9 is equipped with in the system of digital carrier, oleaginousness result broken line graph in dehydration test ten blank tanks.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the lower-discharging type method flow schematic diagram utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium.
Store two kinds of liquid mediums that immiscible proportion is different in storage tank 1, the liquid that wherein proportion is larger is dense medium, and the liquid that proportion is less is light substance.
When starting to be separated two kinds of liquid mediums, open valve 2, until ultrasonic probe 4-1 with 4-3 at the same temperature ultrasound wave in dense medium, velocity of propagation reference data is identical time, send instruction unpack solenoid valve 7 by intelligent control system 5, start blank, namely first give off dense medium in storage tank 1.Staff can according to the percent by volume of two kinds of liquid mediums and blank speed etc., blank time T is pre-set in intelligent control system, when preset the blank time, T arrived time, be arranged in the velocity of propagation and native system that ultrasonic probe 4-1 and 4-3 on blank tank feed back, at identical temperature, ultrasound wave velocity of propagation in dense medium is still identical outside error range, intelligent control system 5 sends instruction shut electromagnetic valve 7, and stop blank, first separation discharge process completes.
The acquisition of reference data is mainly through two kinds of methods, and a kind of velocity of propagation being ultrasonic probe 4-4 feeds back in dense medium in benchmark cylinder is benchmark;
Another kind be by intelligent control system 5 stored in database, mainly in database to store, draw in the present system through overtesting, the velocity of propagation data of ultrasound wave at different temperatures in dense medium, find the respective items that temperature is identical, be used for comparison in this, as reference data.
When the blank time T preset does not arrive, the velocity of propagation being arranged on ultrasonic probe 4-1 with the 4-3 feedback on blank tank is different from reference data outside error range, intelligent control system 5 also sends instruction shut electromagnetic valve 7, stop blank, be issued to solenoid valve from instruction thoroughly to close, be called the reaction time t of solenoid valve, known t≤5s, within the reaction time of solenoid valve in t, the interphase of two kinds of insoluble liq is parallel to or higher than the charging aperture square section of blank pipe, first separation discharge process completes.
After blank completes, the overhead reflux postponed along blank tank top to feed pipe in the top that in blank tank, light substance floats up to blank tank is in storage tank 1, and what still have is residually withdrawn in storage tank by feed back pump.
Whole blank process valve 2 is in opening all the time.
In addition, due in this special separation method of diesel oil dewatering, 5 DEG C time, the velocity of propagation of ultrasound wave in diesel oil is identical with the velocity of propagation in water, so adopt contact detection method as auxiliary detection.Be not described in detail at this.
The whole process of method more than utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium is realized by the device in Fig. 2 and Fig. 3.
Blank tank 3 is connected with storage tank 1 by feed pipe and valve 2, and blank tank is horizontally installed with two external labeling type ultrasonic probe 4-1 and 4-3, wherein ultrasonic probe 4-3 be as ultrasonic probe 4-1 auxiliary detection and calibration arrange.Blank tank 3 is a lower emission type cone end Storage Tanks, and blank pipe 11 is installed one for controlling the solenoid valve 7 of blank, solenoid valve 7 also can be any one other valve that can automatically control.Blank tank position on the upper side is attached to outside ultrasonic probe 4-1, and the distance between blank pipe 11 charging aperture is H, it is v that the present invention designs the decline rate of dense medium in blank tank, the reaction time of solenoid valve 7 is t, for realizing in method noted earlier, blank time T is not then, the echo time being arranged on ultrasonic probe 4-1 with the 4-3 feedback on blank tank is different from reference data outside error range, intelligent control system 5 sends instruction shut electromagnetic valve 7, stop blank, within the reaction time of solenoid valve in t, the interphase of two kinds of insoluble liq is parallel to or higher than the charging aperture square section of blank pipe, the pass of H and v and t is H >=Vt, wherein t≤5s.
Two kinds of methods obtaining reference datas are realized by two kinds of different devices, and one is by arranging benchmark cylinder 10 in blank tank 3, and benchmark cylinder 10 side set temperature meter one, are provided with ultrasonic probe 4-4 on benchmark cylinder 10 simultaneously.As long as the design of benchmark cylinder 10 is when temperature is identical, when being all dense medium in blank tank and benchmark cylinder, the velocity of propagation of the ultrasound wave that ultrasonic probe 4-1 with 4-4 detects in dense medium is identical.
Another kind method by realizing by stored digital modes such as chip or SD cards in intelligent control system 5, and by when being dense medium in blank tank, the relation curve between the velocity of propagation that ultrasonic probe 4-1 detects and temperature is stored in stored digital carrier.
Adopt different taperings according to the degree of impurity in storage tank, taper angle theta/2, bottom scope is at 30 °-65 °.
Whole system is controlled by intelligent controller 5.
What show in Fig. 4 is backflow in order to realize light substance in blank tank 3, feed pipe and blank tank connected mode, the design of blank tank top, and the installation site of feed back pump.One has eight kinds of modes, is respectively:
Feed pipe horizontal direction extends to the other end from charging one end level with the parallel connection in blank tank 3 top, blank tank 3 top;
Feed pipe horizontal direction connects higher than blank tank 3 top, and blank tank 3 top extends from charging one end level to the other end;
Feed pipe horizontal direction and the parallel connection in blank tank 3 top, blank tank 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe horizontal direction connects higher than blank tank 3 top, and blank tank 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and water distributing can 3 top extends from charging one end level to the other end;
Feed pipe horizontal direction connects higher than blank tank 3 top, and water distributing can 3 top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to be connected with blank tank 3 top, and blank tank 3 top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and connect higher than blank tank 3 top, blank tank 3 top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree.
Time blank tank 3 top is level, feed back pump is arranged on the centre position of blank tank, and when blank tank 3 top extends to the other end from high to low from charging one end, feed back pump is arranged on the edge of blank tank feed pipe one end.
Due in diesel oil dewatering separation method, adopt contact detection method as auxiliary detection, namely valve 2 or blank tank 3 in higher than the position of ultrasonic probe 4-1, an insertion contact type probe is installed.
Embodiment 1
According to above-mentioned blank method, inventor, for crude oil storage tank dehydration, with a collection of oil product, is set in the decline rate V=600mm/s of current in dehydration, the reaction time t=5s of known electric magnet valve 7, according to staff's experience setting dewatering time T=6h.
Obtaining in the system of reference data in the mode by arranging benchmark cylinder and thermometer, carrying out continuous dehydration and testing ten times, the results are shown in Figure 5 and Fig. 6.
Embodiment 2
According to above-mentioned blank method, inventor, for crude oil storage tank dehydration, with a collection of oil product, is set in the decline rate V=600mm/s of current in dehydration, the reaction time t=5s of known electric magnet valve 7, according to staff's experience setting dewatering time T=6h.
By obtaining reference data by stored digital modes such as chip or SD cards in intelligent control system 5, contrast with the feedback data of ultrasonic probe 4-1.The data stored in stored digital carrier as shown in Figure 7.
Carry out dehydration test continuously ten times, result as shown in Figure 8 and Figure 9.
[0044] above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind utilizes speed of sound differential from the lower-discharging type method of liquids having different specific weight medium, the method comprises, when be arranged on the ultrasonic probe (4-1) on blank tank (3) at the same temperature ultrasound wave in dense medium, velocity of propagation is identical with reference data time, send electromagnetic valve of instruction (7) by intelligent control system (5) to open, start blank; Be arranged on ultrasonic probe (4-1) on blank tank (3) ultrasound wave when velocity of propagation is different from reference data in dense medium at the same temperature, send electromagnetic valve of instruction (7) by intelligent control system (5) to close, stop blank, it is characterized in that:
Described reference data is that the velocity of propagation fed back in dense medium in benchmark cylinder of ultrasonic probe (4-4) or described reference data are through test and draw in the present system, the velocity of propagation of ultrasound wave in dense medium and the relation of temperature, find the respective items that temperature is identical;
When stopping blank, from the reaction time t issuing instructions to closed electromagnetic valve, the interphase of two kinds of insoluble liq drops to the charging aperture square section of the blank pipe (11) be parallel to or higher than blank pipe;
Stop after blank, enter light substance in blank tank (3) along the overhead reflux of blank tank and feed pipe or be pumped back in storage tank by feed back.
2. lower-discharging type method according to claim 1, is characterized in that: be also set with blank time T in system, and after starting blank, the blank time arrives, and stops blank.
3. lower-discharging type method according to claim 1 and 2, is characterized in that: when described discharge method is diesel oil dewatering, adopts contact probe method auxiliary resolution profit boundary.
4. the lower-discharging type device utilizing velocity of sound difference to be automatically separated liquids having different specific weight medium, comprise the valve (2) be connected with storage tank (1), blank tank (3), level is arranged on two external labeling type ultrasonic probe (4-1 on blank tank (3), 4-3), blank tank (3) top is provided with feed back pump, be connected with blank pipe (11) under blank tank (3), blank pipe (11) is installed solenoid valve (7), the built-in benchmark cylinder (10) of blank tank (3), benchmark cylinder (10) is provided with external labeling type ultrasonic probe (4-4), there is one, thermometer on benchmark cylinder (10) side, whole system is controlled by intelligent controller (5), it is characterized in that: the design consideration of described benchmark cylinder (10) is when temperature is identical, when being all dense medium in blank tank and benchmark cylinder, ultrasonic probe (4-1, the velocity of propagation of ultrasound wave 4-4) detected in dense medium is identical, or install in intelligent controller (5) and have when being dense medium in blank tank, the stored digital carrier of the relation curve between the velocity of propagation that ultrasonic probe (4-1) detects and temperature,
Height between ultrasonic probe (4-1) and blank pipe (11) mouth of pipe is H, and dense medium is v by the decline rate of blank pipe in blank tank, and the reaction time of solenoid valve (7) is t, and the pass between three is, H >=vt, wherein t≤5s;
Feed pipe top is connected with blank tank, the top level of blank tank (3) or extend in direction from high to low along feedstock direction.
5. lower-discharging type device according to claim 4, is characterized in that: described feed pipe top is parallel or connect higher than blank tank (3) top.
6. the upper row's formula device according to claim 4 or 5, is characterized in that:
Feed pipe horizontal direction extends to the other end from charging one end level with the parallel connection in blank tank (3) top, blank tank (3) top;
Feed pipe horizontal direction connects higher than blank tank (3) top, and blank tank (3) top extends from charging one end level to the other end;
Feed pipe horizontal direction and the parallel connection in blank tank 3 top, blank tank (3) top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe horizontal direction connects higher than blank tank (3) top, and blank tank (3) top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and blank tank (3) top extends from charging one end level to the other end;
Feed pipe horizontal direction connects higher than blank tank (3) top, and blank tank (3) top extends to the other end from high to low from charging one end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to be connected with blank tank (3) top, and blank tank (3) top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree;
Feed pipe tilts to install, and connect higher than blank tank (3) top, blank tank (3) top extends from charging one end level to the other end, and inclined angle alpha is 5-10 degree.
7. lower-discharging type device according to claim 4, it is characterized in that: described feed back pump works as blank tank (3) upper water at ordinary times, be arranged on centre position, blank tank top, when blank tank (3) top extends to the other end from high to low from charging one end, feed back pump is arranged on the edge of feed pipe one end, blank tank top.
8. the lower-discharging type device according to any one of claim 4 to 7, it is characterized in that: when this separation method is diesel oil dewatering, higher than the position of ultrasonic probe (4-1) in the position of valve (2) or blank tank (3), a contact measurement device is installed and is used for auxiliary detection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278200.3A CN105278357A (en) | 2014-06-20 | 2014-06-20 | Lower discharge method and device by utilizing difference of sound speed to automatically separate liquid media of different proportions |
| PCT/CN2014/000616 WO2014206060A1 (en) | 2013-06-24 | 2014-06-24 | Method and device for identifying liquid mediums by ultrasonic waves and controlling emission thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278200.3A CN105278357A (en) | 2014-06-20 | 2014-06-20 | Lower discharge method and device by utilizing difference of sound speed to automatically separate liquid media of different proportions |
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| Publication Number | Publication Date |
|---|---|
| CN105278357A true CN105278357A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410278200.3A Pending CN105278357A (en) | 2013-06-24 | 2014-06-20 | Lower discharge method and device by utilizing difference of sound speed to automatically separate liquid media of different proportions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939465A (en) * | 2019-03-22 | 2019-06-28 | 王巍群 | It is a kind of for separating the device of multi-density liquid |
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| CN1637414A (en) * | 2004-01-07 | 2005-07-13 | 高翔 | Ultrasonic detection type automatic storage tank dewatering method and apparatus |
| CN202369464U (en) * | 2011-12-01 | 2012-08-08 | 上海陆源环保科技发展有限公司 | Ultrasonic oil-water separating device |
| CN103425067A (en) * | 2013-06-24 | 2013-12-04 | 高翔 | System for utilizing sound velocity difference to recognize liquid medium with different proportion and control discharging of liquid medium |
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2014
- 2014-06-20 CN CN201410278200.3A patent/CN105278357A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030172716A1 (en) * | 2000-05-10 | 2003-09-18 | Eckhard Braesel | Method and device for the monitoring of gases |
| CN1637414A (en) * | 2004-01-07 | 2005-07-13 | 高翔 | Ultrasonic detection type automatic storage tank dewatering method and apparatus |
| CN202369464U (en) * | 2011-12-01 | 2012-08-08 | 上海陆源环保科技发展有限公司 | Ultrasonic oil-water separating device |
| CN103425067A (en) * | 2013-06-24 | 2013-12-04 | 高翔 | System for utilizing sound velocity difference to recognize liquid medium with different proportion and control discharging of liquid medium |
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