CN105197450A - Water cutting device for oil storage tanks - Google Patents
Water cutting device for oil storage tanks Download PDFInfo
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- CN105197450A CN105197450A CN201510672783.2A CN201510672783A CN105197450A CN 105197450 A CN105197450 A CN 105197450A CN 201510672783 A CN201510672783 A CN 201510672783A CN 105197450 A CN105197450 A CN 105197450A
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Abstract
The invention discloses a water cutting device for oil storage tanks. A measuring cylinder is connected with an oil storage tank by a water cutting pipe, a sensor for detecting the oil content of water is arranged in the measuring cylinder, the bottom of the measuring cylinder is connected with the top of a buffer tank by a connecting pipe, and a bottom drainage pipe of the buffer tank is provided with a drainage solenoid valve; and the sensor is electrically connected with a control device, and the control device is electrically connected with the drainage solenoid valve. The top end of the measuring cylinder is lower than the bottom end of the oil storage tank, and the water cutting pipe is connected with the top of the measuring cylinder. According to the water cutting device for oil storage tanks provided by the invention, by the arranged measuring cylinder, fluids are mixed in the measuring cylinder, and the measuring cylinder is made of a polytetrafluoroethylene material, so that the influence of the pipe on the measuring accuracy is avoided, and the measuring accuracy of the sensor is improved. By the arranged buffer tank, oil leak wastes caused by the hysteresis of sensor detection and automatic control can be avoided, and when the drainage solenoid valve is turned off, an oil product in the buffer tank can flow back to the oil storage tank through the buoyancy, thereby reducing wastes.
Description
Technical field
The present invention relates to oil extraction field, particularly a kind of petrol storage tank cuts water device, and the present invention can also be used for proportion difference and immiscible two kinds of fluid separation applications.
Background technology
It is exactly the process of being discharged from oil tank by the ponding be deposited on bottom petrol storage tank that petrol storage tank cuts water.In the storing and transporting system in the fields such as oil, petrochemical industry and development of the field, chemical industry, oil refining, usually can run into oil product (as: crude oil, diesel oil, gasoline, kerosene, wax oil, lubrication wet goods) needs to cut water problem.Existing water method of cutting mainly contains two kinds, a kind of be generally adopt manually cut water, be arranged on the valve of tank base by manual control switch, by tank water get rid of; Another kind is automatic water-stopping, mainly contains the several methods such as float type, mechanical type, electronic type, realizes the excision of water in tank.Manually cut when water requirement operating personal cuts water and can not leave scene, otherwise after the water in storage tank cuts, oil product will be cut out, and causes oil leak accident, and labour intensity is high.The method of automatic water-stopping, current effect is still undesirable and do not promote the use of.Most reasons be install inconvenient, difficult in maintenance, detect insensitive, oil product cause after adhering to malfunctioning, involve great expense.
Mechanical automatic water-stopping device, movable part is wherein vulnerable to the coated of fluid, thus affects the action of movable part, and cut water reliable not, continuous working period is short.
Chinese patent literature CN203128170U, disclose " a kind of petrol storage tank is unpowered, and safe type intelligent cuts water device ", detected the bitumen content in water by the sensor be arranged in pipeline, can realize automatic water-stopping, Problems existing is, because the space in pipeline is less, the detection of sensor is insensitive, and oil product easily swims in around sensor, thus it is lower to make to cut water efficiency, and cut in water process cannot automatic oil return, there is the problem of waste in oil product.The concrete structure of also unexposed sensor in the document.
Chinese patent literature CN204027650U, disclose " a kind of sensor for detecting oil water demarcation face ", it accurately can detect oil water demarcation face, and efficiency is high, labour intensity is little, safety is high.By the mode of multiple sensor from top to bottom, detect the dividing range of water and oil, Problems existing is the sensor not easy to clean that fluid enters into this structure, causes accuracy of detection not high, thus affects continuous working period.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of petrol storage tank and cuts water device, can realize automatic water-stopping, and continuous working period is long, can realize automatic oil return.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of petrol storage tank cuts water device, measuring cylinder is connected with petrol storage tank by cutting water pipe, the sensor for detecting bitumen content in water is provided with in measuring cylinder, the bottom of measuring cylinder is connected with the top of expansion tank by connection pipe, is provided with draining solenoid valve at the bottom drain of expansion tank;
Sensor is electrically connected with control setup, and control setup is electrically connected with draining solenoid valve.
The top of measuring cylinder, lower than the bottom of petrol storage tank, is cut water pipe and is connected with the top of measuring cylinder.
Cut water pipe to be tangentially connected with the top of measuring cylinder, to make fully to mix in measuring cylinder in flow of liquid process.
Described sensor is capacitance-type sensor, and sensor has into the pole plate that pectination is arranged, pole plate is connected with testing circuit plate through the sidewall of measuring cylinder, and testing circuit plate is connected with control setup.
The outside face of pole plate is provided with anticorrosion coating.
The free end of pole plate is connected to each other by the pillar stiffener of insulation.
Heating pipe is provided with in expansion tank.
Connection pipe is provided with photoelectric detection system.
Connection pipe is provided with the first bypass duct in parallel and the second bypass duct;
First bypass duct is provided with photoelectric detection system, and the second bypass duct is provided with detection valve.
In described photoelectric detection system, comprise the transparent narrow gap of the detection passed through for liquid, be provided with scale grating and optical sensor in the side detecting narrow gap, the opposite side detecting narrow gap is provided with lens and electro-optical tubes.
A kind of petrol storage tank provided by the invention cuts water device, and by the measuring cylinder arranged, make liquid through mixing in measuring cylinder, measuring cylinder adopts polytetrafluoroethylene material to make, and avoids the impact on survey precision, improves the survey precision of sensor.The expansion tank arranged, can avoid the race oil waste caused because of the hysteresis quality of sensor detection and control automatically, and after draining solenoid valve is closed, the oil product in expansion tank can be back in petrol storage tank by buoyancy, cuts the waste.In preferred scheme, the photoelectric detection system of setting, adopt the mode that look choosing or pattern displacement are selected, because photoelectric detection system does not contact with mixing material, therefore continuous working period is long.Device of the present invention, can realize unattendedly cutting water continuously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is the left TV structure schematic diagram of preferred version of the present invention.
Fig. 3 is the structural representation of photoelectric detection system in the present invention.
Fig. 4 is control flow schematic diagram of the present invention.
In figure: measuring cylinder 1, measure chamber 2, sensor 3, pillar stiffener 31, testing circuit plate 4, control setup 5, connection pipe 6, detects valve 61, first bypass duct 62, photoelectric detection system 63, detects narrow gap 631, lens 632, electro-optical tubes 633, scale grating 634, optical sensor 635, the second bypass duct 64, expansion tank 7, drain pipe 71, heating pipe 8, draining solenoid valve 9, petrol storage tank 10, oil 101, water 102, shutoff valve 11, cuts water pipe 12.
Detailed description of the invention
Embodiment 1:
As in Fig. 1, a kind of petrol storage tank cuts water device, measuring cylinder 1 is connected with petrol storage tank 10 by cutting water pipe 12, the sensor 3 for detecting bitumen content in water is provided with in measuring cylinder 1, the bottom of measuring cylinder 1 is connected with the top of expansion tank 7 by connection pipe 6, is provided with draining solenoid valve 9 at the bottom drain 71 of expansion tank 7;
Cut the blow-off pipe that water pipe 12 also directly can utilize petrol storage tank in this example, the shutoff valve cut on water pipe 12 utilizes flange arrangement to be connected with the blow-off pipe of petrol storage tank.
Described sensor 3 is capacitance-type sensor, and sensor 3 has into the pole plate that pectination is arranged, pole plate is electrically connected with testing circuit plate 4 through the sidewall of measuring cylinder 1, and testing circuit plate 4 is electrically connected with control setup 5.
The outside face of pole plate is provided with anticorrosion coating, adopts polytetrafluorethylecoatings coatings in this example.The anticorrosion coating arranged can avoid oil product to be attached to the outside face of pole plate, even if adhere on a small quantity, along with washing away of current, is also easy to clean out.
The free end of pole plate is connected to each other by the pillar stiffener 31 of insulation.Structure thus, makes the spacing between pole plate keep constant, in order to avoid affect the accuracy of detection of sensor 3.
Measuring cylinder 1 adopts polytetrafluoroethylene material, improve antiseptic property, and oil product is not easily attached to the inwall of measuring cylinder 1, can not have influence on the accuracy of detection of sensor 3.
Sensor 3 is connected with control setup 5, and control setup 5 is connected with draining solenoid valve 9.
Control flow as shown in Figure 4, when the bottom of petrol storage tank 10 has more water 102, opening stop valve 11, water flow in the measurement chamber 2 of measuring cylinder 1 from cutting water pipe 12, and tentatively mix, the specific inductance capacity measuring the liquid in chamber 2 changes, known from capacitance equation, when polar plate area and pole plate gap remain unchanged, the capacitance of sensor and specific inductance capacity positive correlation, capacitance is corresponding to change, the analog signal detected is sent to testing circuit plate 4 by sensor 3, through AD conversion, convert digital signal to, compare with the threshold value preset in control setup 5, if be less than threshold value, then control setup 5 controls the break-make of draining solenoid valve 9, after a certain time, reopen, repeat above step.
Or threshold value is two groups, one group is upper limit threshold, one group is lower threshold, draining solenoid valve 9 is aperture electromagnetic valve for adjusting, when being greater than upper limit threshold, draining solenoid valve 9 is closed completely, when be less than lower threshold then draining solenoid valve 9 open completely, when between upper limit threshold and lower threshold, then draining solenoid valve 9 is made to be tending towards opening completely.After draining solenoid valve 9 closes certain hour, reopen, repeat above step.
Control setup 5 is also connected with read out instrument or network, and such as control setup 5 adopts wireless local area network building, is then connected with the terminal of master control room, realizes remote monitor and control.
The top of measuring cylinder 1, lower than the bottom of petrol storage tank 10, is cut water pipe 12 and is connected with the top of measuring cylinder 1.Structure thus, after draining solenoid valve 9 is closed completely, oil product, from the overhead reflux of petrol storage tank 10 to the measurement chamber 2 of measuring cylinder 1, is conducive to being heated by the oil that sensor plate is adhered to and cleaning by the oil heated at petrol storage tank 10.
Cut water pipe 12 to be tangentially connected with the top of measuring cylinder 1, to make fully mixing in measuring cylinder 1 in flow of liquid process, thus make the specific inductance capacity of liquid even, improve survey precision.The oil 101 that this structure is also beneficial to sensor 3 and measurement chamber 2 adhere to washes away totally.
Preferred scheme, as in Fig. 1,2, is provided with heating pipe 8 in expansion tank 7, is connected with hot water in heating pipe 8, reduces to make the rear viscosity of oil 101 heating.
Preferred bottom drain 71 is also provided with shutoff valve, so that when draining solenoid valve 9 damages, can manually carry out cutting water operation, draining solenoid valve 9 is connected with bottom drain 71 by a T-pipe joint with shutoff valve.
Embodiment 2:
On the basis of embodiment 1 as shown in Figure 2, connection pipe 6 is provided with photoelectric detection system 63.The detection of bitumen content in water is realized by the oil in the color of tracer liquid or tracer liquid, water interface.The precision and efficiency of detecting of the detection mode of this routine photoelectric detection system 63 is higher, and photoelectric detection system 63 not with liquid comes into contact, there is not the problem of cleaning, continuous working period is long.Further in preferred scheme, photoelectric detection system 63 be many groups, to improve fault-tolerance, and by the mode of alternation, and prolongation continuous working period.
Preferred scheme is as in Fig. 2, and connection pipe 6 is provided with the first bypass duct 62 and the second bypass duct 64 in parallel;
First bypass duct 62 is provided with photoelectric detection system 63, and the second bypass duct 64 is provided with and detects valve 61.Structure thus, avoids photoelectric detection system 63 to affect the efficiency of cutting water, and by regulating the aperture detecting valve 61, be convenient to the flow of liquid in adjustment first bypass duct 62, and water efficiency is cut in raising.
In optional scheme, in described photoelectric detection system 63, comprise the narrow gap 631 of the transparent detection passed through for liquid, the two ends detecting narrow gap 631 are preferably formed with the first bypass duct 62 and seamlessly transit.Detecting the side optical sensor 635 of narrow gap 631, detect the opposite side electro-optical tubes 633 of narrow gap 631.The program detects bitumen content in water for adopting the mode of colorimetric detection, is applicable to the detection of the crude oil larger with water 102 aberration, diesel oil, kerosene, wax oil, lubricating oil.
Another optional scheme is as in Fig. 3, in described photoelectric detection system 63, comprise the narrow gap 631 of the transparent detection passed through for liquid, be provided with scale grating 634 and optical sensor 635 in the side detecting narrow gap 631, the opposite side detecting narrow gap 631 is provided with lens 632 and electro-optical tubes 633.Because the oil 101 in this example is immiscible with water 102, therefore Presence of an interface between the oil 101 and water 102 of mixing material, make the transmission of light produce interference in the position at interface, the indication grating of constantly movement is substituted with oil 101 and the interface of water 102, electro-optical tubes 633 sends and detects light after lens 632, become one group of collimated light, through oil 101 and the interface of water 102 and the slit of scale grating 634, the light that optical sensor 635 is received produces diffraction change, the pulse that optical sensor 635 produces according to diffraction, can calculate the bitumen content in water outlet.Identical with described in embodiment 1 of concrete control method.
The above embodiments are only the preferred technical solution of the present invention, and should not be considered as restriction of the present invention, and the embodiment in the application and the feature in embodiment, can combination in any mutually when not conflicting.The technical scheme that protection scope of the present invention should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection scope of the present invention.
Claims (10)
1. a petrol storage tank cuts water device, it is characterized in that: measuring cylinder (1) is connected with petrol storage tank (10) by cutting water pipe (12), the sensor (3) for detecting bitumen content in water is provided with in measuring cylinder (1), the bottom of measuring cylinder (1) is connected with the top of expansion tank (7) by connection pipe (6), is provided with draining solenoid valve (9) at the bottom drain (71) of expansion tank (7);
Sensor (3) is electrically connected with control setup (5), and control setup (5) is electrically connected with draining solenoid valve (9).
2. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: the top of measuring cylinder (1), lower than the bottom of petrol storage tank (10), is cut water pipe (12) and is connected with the top of measuring cylinder (1).
3. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: cut water pipe (12) and be tangentially connected with the top of measuring cylinder (1), to make fully mixing in measuring cylinder (1) in flow of liquid process.
4. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: described sensor (3) is capacitance-type sensor, sensor (3) has into the pole plate that pectination is arranged, pole plate is connected with testing circuit plate (4) through the sidewall of measuring cylinder (1), and testing circuit plate (4) is connected with control setup (5).
5. a kind of petrol storage tank according to claim 4 cuts water device, it is characterized in that: the outside face of pole plate is provided with anticorrosion coating.
6. a kind of petrol storage tank according to claim 4 cuts water device, it is characterized in that: the free end of pole plate is connected to each other by the pillar stiffener (31) of insulation.
7. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: in expansion tank (7), be provided with heating pipe (8).
8. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: connection pipe (6) is provided with photoelectric detection system (63).
9. a kind of petrol storage tank according to claim 1 cuts water device, it is characterized in that: connection pipe (6) is provided with the first bypass duct (62) in parallel and the second bypass duct (64);
First bypass duct (62) is provided with photoelectric detection system (63), and the second bypass duct (64) is provided with and detects valve (61).
10. a kind of petrol storage tank according to claim 8 or claim 9 cuts water device, it is characterized in that: in described photoelectric detection system (63), comprise the transparent narrow gap of the detection passed through for liquid (631), be provided with scale grating (634) and optical sensor (635) in the side detecting narrow gap (631), the opposite side detecting narrow gap (631) is provided with lens (632) and electro-optical tubes (633).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510672783.2A CN105197450B (en) | 2015-10-19 | 2015-10-19 | Oil storage tank water cutting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510672783.2A CN105197450B (en) | 2015-10-19 | 2015-10-19 | Oil storage tank water cutting device |
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| CN105197450A true CN105197450A (en) | 2015-12-30 |
| CN105197450B CN105197450B (en) | 2017-12-01 |
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| CN201510672783.2A Active CN105197450B (en) | 2015-10-19 | 2015-10-19 | Oil storage tank water cutting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227571A (en) * | 2017-12-14 | 2018-06-29 | 宁波升维信息技术有限公司 | Full-intelligent water draining facility |
| CN109779820A (en) * | 2019-02-25 | 2019-05-21 | 中国矿业大学 | A kind of utilization system that discarding outdoor pit and utilize method |
| CN114367231A (en) * | 2021-12-03 | 2022-04-19 | 浙江陶特容器科技股份有限公司 | Intelligent liquid precursor source storage device for semiconductor processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108227571A (en) * | 2017-12-14 | 2018-06-29 | 宁波升维信息技术有限公司 | Full-intelligent water draining facility |
| CN109779820A (en) * | 2019-02-25 | 2019-05-21 | 中国矿业大学 | A kind of utilization system that discarding outdoor pit and utilize method |
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| CN114367231A (en) * | 2021-12-03 | 2022-04-19 | 浙江陶特容器科技股份有限公司 | Intelligent liquid precursor source storage device for semiconductor processing |
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