CN105204378A - Intermittent discharge method and intermittent discharge device for separating liquid media of different proportions based on sound velocity difference - Google Patents
Intermittent discharge method and intermittent discharge device for separating liquid media of different proportions based on sound velocity difference Download PDFInfo
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- CN105204378A CN105204378A CN201410278031.3A CN201410278031A CN105204378A CN 105204378 A CN105204378 A CN 105204378A CN 201410278031 A CN201410278031 A CN 201410278031A CN 105204378 A CN105204378 A CN 105204378A
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Abstract
The invention relates to an intermittent discharge method and an intermittent discharge device for separating liquid media of different proportions based on sound velocity difference, and especially relates to a method and a device for separating a flammable and volatile liquid medium from liquids of different proportions. By arranging a measuring cylinder (4), a blanking tank (3), an ultrasonic probe, a temperature probe, a nitrogen source or inert gas source, and corresponding pipes and valves, the problem of intermittent discharge is solved, and a flammable and volatile liquid medium can be separated safely under the premise of guaranteeing the separation efficiency.
Description
Technical field
The present invention relates to a kind of speed of sound differential that utilizes from immiscible liquids having different specific weight medium intermittent discharge method and device, particularly a kind of method and device for separating of there being inflammable volatile liquid medium in liquids having different specific weight.
Background technology
China Patent No. is in CN1637414, the present inventor has invented a kind of ultrasonic detection type automatic storage tank dewatering method and device thereof, utilize ultrasound wave to the difference of two kinds of liquid medium echo times, by arranging water distributing can and arrange ultrasonic probe on water distributing can, intelligent controller is adopted to carry out the method controlled, in petrochemical industry, solve the problem of crude oil and product oil automatic dehydration.Chinese patent publication No. be CN103425067 name be called utilize the velocity of sound difference identify liquids having different specific weight medium and control its discharge system in, the present inventor by arranging benchmark cylinder in blank tank, in the benchmark cylinder recorded, the ultrasonic echo speed of water is as standard, conclude oil appearance, ensure automatic water-cutting system impurity alluvial, there are the abnormal conditions such as middle layer under can work observantly.
In these the two kinds automatic systems utilizing liquid different specific weight and the difference of the velocity of sound to be separated liquid, adopt be all continuous blow-down when, the difference of two kinds of liquid to hyperacoustic echo speed is utilized to be separated according to two kinds of liquid specific gravity differences, but in the process of continuous blow-down, a point aspect for two kinds of liquid is disturbed, impact point water purity and efficiency.And for inflammable volatile liquid medium, adopt the mode of continuous blow-down to there is potential safety hazard, easily cause the generation of accident.
Summary of the invention
Technical matters to be solved by this invention is to provide one and utilizes speed of sound differential from liquids having different specific weight medium intermittent discharge method, containing inflammable volatile liquid in described liquid.
For solving the problems of the technologies described above, whole intermittent discharge method step is as follows:
(1) open valve 2, in storage tank, dense medium flows out;
(2) be arranged on ultrasonic probe 4-5 in measuring cylinder and temp probe T1 to feed back
Data identical with the reference data at identical temperature, control system sends instruction, and the valve KV4 of inlet valve KV1 and the pipeline that communicates with storage tank 1 opens;
(3) when on blank tank, the echo time of two ultrasonic probe 4-1 with 4-2 feedbacks is identical,
Control system sends instruction, and the valve KV4 of inlet valve KV1 and the pipeline that communicates with storage tank 1 closes, and blank valve KV3 and gas admittance valve KV2 opens, and gas admittance valve communicates with source nitrogen;
(4) velocity of propagation fed back of ultrasonic probe 4-2 is at ultrasound wave in gas medium
During velocity of propagation scope, control system sends instruction, and blank valve KV3 and gas admittance valve KV2 closes, and the valve KV4 of inlet valve KV1 and the pipeline that communicates with storage tank 1 opens, and carries out subordinate phase blank;
(5), after above-mentioned four steps being repeated n time, wherein n >=1, as ultrasonic probe 4-5
Feedback data different from reference data at identical temperature, control system sends instruction, the valve KV4 of inlet valve KV1 and the pipeline that communicates with storage tank 1 closes, in the valve responds time, in measuring cylinder 4, the interphase of two kinds of immiscible liquids drops to and to be parallel to or higher than the charging aperture square section of blank pipe, blank valve KV3 and gas admittance valve KV2 opens;
(6) light substance entering into measuring cylinder 4 is back to storage tank, once completely cuts
Material process completes.
Preferred as one of the present invention, reference data exists to draw in the present system through overtesting in intelligent control system, the velocity of propagation of ultrasound wave in dense medium and the relation data of temperature.
As another kind of preferred version of the present invention, air inlet pipeline can also communicate with inertia source of the gas.
Another technical matters to be solved by this invention is to provide one and utilizes speed of sound differential from liquids having different specific weight medium intermittent discharge device, containing inflammable volatile liquid in described liquid, comprise valve 2, blank tank 3, perpendicular separation is arranged on two ultrasonic probe 4-1 and 4-2 on blank tank 3, blank pipe below blank tank 3 is provided with valve 7, and whole system is controlled by intelligent control system 5.
After the valve 2 be connected with storage tank 1, be connected with measuring cylinder 4; Storage tank 1 is led in pipeline one end on blank tank 3, and the other end is air inlet pipeline, is connected with source nitrogen, draft tube is equipped with valve 8.
And conveniently control, be arranged between measuring cylinder 4 and blank tank 3, blank pipe, draft tube and blank tank 3 and four autocontrol valve KV1 on storage tank 1, KV2, KV3, KV4.
The digital carrier for Memory Reference data is provided with in described intelligent control system 5.
The length of measuring cylinder is H, and the decline rate of dense medium in measuring cylinder is v, and the pass between the reaction time t of solenoid valve is H >=vt, wherein t≤5s;
Be connected with measuring cylinder 4 by the feed pipe of valve 2, the top level of measuring cylinder 4 or extend from high to low along charging one end.
Preferred as one of the present invention, feed pipe top is parallel or connect higher than measuring cylinder 4 top.
Preferred as another kind of the present invention, air inlet pipeline can also be connected with inertia source of the gas.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 utilizes speed of sound differential from liquids having different specific weight medium intermittent discharge method flow diagram schematic diagram.
Fig. 2 utilizes speed of sound differential from liquids having different specific weight medium intermittent discharge system schematic.
Fig. 3 is the connected mode schematic diagram of feeding pipe and measuring cylinder.
Fig. 4 is in intermittent discharge system, and inflammable volatile liquid dehydration test deviates from the oleaginousness result broken line graph of water for ten times.
Embodiment
Fig. 1 utilizes speed of sound differential from the process flow diagram of liquids having different specific weight medium intermittent discharge method in the present invention.
Store two kinds of liquid mediums that immiscible proportion is different in storage tank 1, have inflammable volatile liquid in described liquid medium, 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, when being arranged in the reference data at the identical temperature that data and intelligent control system that the ultrasonic probe 4-5 in measuring cylinder 4 detects feedback store and being identical, intelligent control system 5 sends instruction, on feed pipe, on autocontrol valve KV1 and the pipeline that communicates with storage tank 1, autocontrol valve KV4 opens, and starts charging.Reference data exists to draw in the present system through overtesting in intelligent control system, and the velocity of propagation of ultrasound wave in dense medium and the relation data of temperature, find the velocity of propagation corresponding to identical temperature, is used for comparison in this, as benchmark.
Be arranged on data that two ultrasonic probe 4-1 with 4-2 on blank tank 3 feed back identical time, intelligent control system 5 sends instruction and closes autocontrol valve KV1 and KV4, stop charging, connect autocontrol valve KV3 on autocontrol valve KV2 on the pipeline of nitrogen or inert gas and blank pipe and open and carry out blank.The velocity of propagation scope of ultrasound wave in gas is also had in intelligent control system 5, when in the velocity of propagation homologous ray that ultrasonic probe 4-2 detects, data are compared, time in the scope of gas, autocontrol valve KV2 and KV3 closes, stop blank, autocontrol valve KV1 and KV4 opens, and feed pipe is charging again.
After said process repeats n time, wherein n >=1, when the feedback data of the ultrasonic probe 4-5 in measuring cylinder 4 is different from the identical temperature reference data in intelligent control system 5, system directive autocontrol valve KV1 and the valve KV4 communicated with gas-holder closes, stop charging, autocontrol valve KV3 opens and opens with air intake valve KV2, starts blank.The instruction of charging is stopped to close completely from being issued to autocontrol valve KV1, be called the reaction time t of valve, known t≤5s, within the reaction time of valve in t, in measuring cylinder 4, the interphase of two kinds of immiscible liquids is parallel to or higher than the charging aperture square section of blank pipe, first separation discharge process completes.
After blank completes, the top that in measuring cylinder 4, light substance floats up to measuring cylinder postpone along measuring cylinder top to be connected with measuring cylinder top feed pipe overhead reflux in storage tank 1.
Speed of sound differential is utilized to be realized from the whole process of liquids having different specific weight medium intermittent discharge method by the device of Fig. 2.As shown in Figure 2, measuring cylinder 4 is connected by feed pipe after storage tank 1 is connected with valve 2, measuring cylinder 4 is provided with ultrasonic probe 4-5 and temperature probe T 1, measuring cylinder 4 is connected with blank tank 3 by autocontrol valve KV1, on blank tank 3, perpendicular separation installs two external labeling type ultrasonic probe 4-1 and 4-2, hand hole S1 is provided with, for clearing up the impurity be deposited in blank tank 3 manually at the sidewall of blank tank.The below of blank tank connects blank pipe, by autocontrol valve KV3 and valve 7, finally leads to pollution discharge pond, in discharge pond, have plug-in type detection probe, is used for detecting the oil content in the rear water of discharge.Simultaneously, be provided with pipeline at the top of blank tank to be communicated with storage tank 1 by autocontrol valve KV4, to reach the pressure equilibrium with storage tank 1, the other end of this pipeline is connected with nitrogen or inert gas with valve 8 by autocontrol valve KV2 in addition, and it is good that this connecting line is positioned at blank tank top center position.Valve 7 and valve 8 are can automatically to control and can the valve of Non-follow control, are in the state of unlatching in whole blank process always.Also be provided with safety valve at the top of blank tank 3, be used for pressure release exhaust when pressure is excessive and ensure safety.Whole system is controlled by intelligent controller 5.The relation curve in the digital carrier stored digital mode record measuring cylinder 4 such as chip or SD card in dense medium liquid between ultrasonic propagation velocity and temperature and the velocity of propagation scope of ultrasound wave in gas medium is provided with in intelligent control system 5.
For realizing when the feedback data of the ultrasonic probe 4-5 in measuring cylinder 4 is different from the identical temperature reference data in intelligent control system 5, autocontrol valve KV1 and KV4 closes, stop charging, within the reaction time of valve in t, in measuring cylinder 4, the interphase of two kinds of immiscible liquids is parallel to or higher than the charging aperture square section of blank pipe, suppose that the height of measuring cylinder 4 is H, when automatic valve KV1 opens, in measuring cylinder, dense medium decline rate is v, pass then between H, v and t is H >=vt, wherein t≤5s.
For convenience of oil return, the connected mode at measuring cylinder 4 top and feeding pipe top and the top design of measuring cylinder are shown in Fig. 3, and eight kinds of modes are 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 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.
According to above-mentioned blank method and apparatus, inventor adopts the process of liquefied petroleum gas (LPG) dehydration in lightweight oil, with a collection of oil product, be set in the decline rate V=300mm/s of current in measuring cylinder, the reaction time t=5s of known electric magnet valve 7, carry out dehydration test ten times, result as shown in Figure 4.
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 (6)
1. utilize speed of sound differential from a liquids having different specific weight medium intermittent discharge method, described liquid
Containing inflammable volatile liquid in body, it is characterized in that, step is as follows:
(1) open valve (2), in storage tank, dense medium flows out;
(2) reference data be arranged under the data and identical temperature that ultrasonic probe (4-5) in measuring cylinder and temp probe (T1) feed back is identical, control system sends instruction, and the valve (KV4) of inlet valve (KV1) and the pipeline that communicates with storage tank (1) is opened;
(3) echo time that on blank tank, two ultrasonic probes (4-1,4-2) are fed back is time identical,
Control system sends instruction, and the valve (KV4) of inlet valve (KV1) and the pipeline that communicates with storage tank (1) is closed, and blank valve (KV3) and gas admittance valve (KV2) are opened, and air inlet pipeline is connected with source nitrogen;
(4) velocity of propagation fed back of ultrasonic probe (4-2) is when the velocity of propagation scope of ultrasound wave in gas medium, control system sends instruction, blank valve (KV3) and gas admittance valve (KV2) are closed, the valve (KV4) of inlet valve (KV1) and the pipeline that communicates with storage tank (1) is opened, and carries out subordinate phase blank;
(5) after above-mentioned four steps being repeated n time, wherein n >=1, when the feedback data of ultrasonic probe (4-5) is different from reference data at identical temperature, control system sends instruction, the valve (KV4) of inlet valve (KV1) and the pipeline that communicates with storage tank (1) is closed, in the valve responds time, in measuring cylinder (4), the interphase of two kinds of immiscible liquids drops to and to be parallel to or higher than the charging aperture square section of blank pipe, blank valve (KV3) and gas admittance valve (KV2) are opened;
(6) light substance entering into measuring cylinder (4) is back to storage tank, and once complete blank process completes.
2. intermittent discharge method according to claim 1, is characterized in that: described benchmark
Data exist to draw in the present system through overtesting in intelligent control system, the velocity of propagation of ultrasound wave in dense medium and the relation data of temperature.
3. intermittent discharge method according to claim 1, is characterized in that: described air inlet pipeline communicates with inertia source of the gas.
4. one kind utilizes speed of sound differential from liquids having different specific weight medium intermittent discharge device, described liquid is not for fire nonvolatile liquid, comprise valve (2), blank tank (3), perpendicular separation is arranged on two ultrasonic probes (4-1,4-2) on blank tank (3), and the blank pipe of blank tank (3) below is provided with valve (7), whole system is controlled by intelligent control system (5), it is characterized in that:
After the valve (2) be connected with storage tank (1), be connected with measuring cylinder (4);
Storage tank (1) is led in pipeline one end on blank tank (3), and the other end is air inlet pipeline, is connected with nitrogen, draft tube is equipped with valve (8);
And conveniently control to be arranged between measuring cylinder (4) and blank tank (3), blank pipe, draft tube and blank tank (3) and four autocontrol valve (KV1 on storage tank (1), KV2, KV3, KV4);
The digital carrier for Memory Reference data is provided with in described intelligent control system (5);
The length of measuring cylinder is H, and the decline rate of dense medium in measuring cylinder is v, and the pass between the reaction time t of solenoid valve is H >=vt, wherein t≤5s;
Be connected with measuring cylinder (4) by the feed pipe of valve (2), the top level of measuring cylinder (4) or extend from high to low along charging one end.
5. intermittent discharge device according to claim 4, is characterized in that: described feed pipe top is parallel or connect higher than measuring cylinder (4) top.
6. intermittent discharge device according to claim 4, is characterized in that: described air inlet pipeline can also be connected with inertia source of the gas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278031.3A CN105204378B (en) | 2014-06-20 | 2014-06-20 | Using speed of sound differential from liquids having different specific weight medium intermittent discharge method and device |
| 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 |
|---|---|---|---|
| CN201410278031.3A CN105204378B (en) | 2014-06-20 | 2014-06-20 | Using speed of sound differential from liquids having different specific weight medium intermittent discharge method and device |
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| Publication Number | Publication Date |
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| CN105204378A true CN105204378A (en) | 2015-12-30 |
| CN105204378B CN105204378B (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410278031.3A Active CN105204378B (en) | 2013-06-24 | 2014-06-20 | Using speed of sound differential from liquids having different specific weight medium intermittent discharge method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739069A (en) * | 2021-09-23 | 2021-12-03 | 凯泰（滁州）流体控制有限公司 | Method and device for realizing online leakage real-time monitoring of safety valve pipeline of liquefied hydrocarbon spherical tank water cut-off device |
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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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2014
- 2014-06-20 CN CN201410278031.3A patent/CN105204378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203561613U (en) * | 2013-06-24 | 2014-04-23 | 高翔 | Device for recognizing and emitting liquid media with different specific gravities by virtue of sound velocity difference |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113739069A (en) * | 2021-09-23 | 2021-12-03 | 凯泰（滁州）流体控制有限公司 | Method and device for realizing online leakage real-time monitoring of safety valve pipeline of liquefied hydrocarbon spherical tank water cut-off device |
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Effective date of registration: 20210326 Address after: 239000, No. 350, Nanjing North Road, Chuzhou City, Anhui Province Patentee after: KAITAI (CHUZHOU) FLUID CONTROL Co.,Ltd. Address before: 100101 unit 1201, block a, 170 Beiyuan Road, Chaoyang District, Beijing Patentee before: Gao Xiang |
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