CN104634416B - Condenser type ship Oil Tank liquid surface measuring device - Google Patents
Condenser type ship Oil Tank liquid surface measuring device Download PDFInfo
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- CN104634416B CN104634416B CN201410803595.4A CN201410803595A CN104634416B CN 104634416 B CN104634416 B CN 104634416B CN 201410803595 A CN201410803595 A CN 201410803595A CN 104634416 B CN104634416 B CN 104634416B
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- oil tank
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Abstract
A kind of condenser type ship Oil Tank liquid surface measuring device of offer of the embodiment of the present invention, apparatus of the present invention, including：For measuring the capacitance detector of ship Oil Tank liquid level, the capacitance according to corresponding to oil/AIR Proportional in the capacitance detector is converted into the capacitance measurement chip of data signal, the data signal is converted into the single-chip microcomputer of the Oil Tank oil mass, keeps the Gas Control Module of the capacitance detector inner air invariablenes pressure of liquid；The capacitance detector is connected with the capacitance measurement chip input, and the capacitance measurement chip output is connected with the single-chip microcomputer.The embodiment of the present invention realizes the liquid level that Oil Tank is measured when ship Oil Tank liquid level fluctuates, and improves the degree of accuracy of ship Oil Tank liquid level gauging.
Description
Technical field
The present embodiments relate to electronic surveying field, more particularly to a kind of condenser type ship Oil Tank.
Background technology
At present, merchant ship is mostly using diesel power plant driving navigation.In diesel engine, fired by being sprayed into cylinder
Material burning, converts chemical energy into mechanical energy.Ship is provided with a variety of Oil Tanks (such as storage cabinet and settling tank) to store fuel oil.
It is well known that when ship rides the sea, due to the effect by wind, wave, stream etc., ship has different degrees of left and right, preceding
Periodicity or acyclic inclination afterwards, this can cause the liquid level in ship Oil Tank that different degrees of fluctuation also occurs, make measurement
The measurement result of instrument produces error.Therefore, accurately the oil level of Oil Tank is particularly important in the case of monitoring Ship Swaying.
Be presently used for measure Oil Tank liquid level method mainly have it is following several：
1) float-type.This method is to track fluctuation in stage using float, mechanically direct-drive record position.Its is excellent
Point is that principle is simple, and production cost is low, and more universal application is obtained on ship.But its shortcoming is that movable part is more, fortune
Dynamic component is easily stuck, and with the passage of usage time, the fracture easy to wear of steel rope, accuracy of detection is relatively low.
2) pressure type.This method is that pressure sensor is placed in the bottom of Oil Tank, and sensor is applied to by measuring fluid
On pressure calculate the height of Oil Tank liquid level.But during operation of ship, under conditions of Oil Tank oil mass is constant, Oil Tank liquid
Face due to ship inclination and can rock and constantly fluctuate, then above build-up of pressure sensor pressure fluctuation, so as to cause oil
Measurement also constantly fluctuates.
3) radar type.This method is to send ultrasonic wave by signal projector, is received by the antenna after liquid level reflects, then
The time difference that transmission signal and reception signal are calculated by secondary circuit obtains liquid level.Most of radar level gauge is required for using ripple
Conduit, but corrosion, bending and the inclination of waveguide can all influence measurement accuracy.
4) hand-dipping formula.This method is that oil dipstick is put into Oil Tank by surveyor, and cuts or polish jade with an emery wheel in chi and contacted with tank bottom
Shi Tiqi oil dipsticks.According to the oil product vestige on oil dipstick, fuel head is read.This method can not realize automatic measurement, survey
It is also larger to measure error amount, is suitable only for some specific Oil Tank level gaugings.
It is low that above-mentioned existing several measurement Oil Tank oil mass methods are applied to accuracy rate during measurement ship Oil Tank dynamic oil mass.
The content of the invention
The embodiment of the present invention provides a kind of condenser type ship Oil Tank liquid surface measuring device, to overcome ship Oil Tank liquid level to occur
During fluctuation, there is the problem of error in the measurement for ship Oil Tank liquid level.
The present invention provides a kind of condenser type ship Oil Tank liquid surface measuring device, including：
For measuring the capacitance detector of ship Oil Tank liquid level, according to the oil in the capacitance detector/air ratio
Capacitance corresponding to example is converted into the capacitance measurement chip of data signal, the data signal is converted into the Oil Tank oil mass
Single-chip microcomputer, keep the Gas Control Module of the capacitance detector inner air invariablenes pressure of liquid；
The capacitance detector is connected with the capacitance measurement chip input, the Gas Control Module, the electric capacity
Measurement chip output is connected with the single-chip microcomputer.
Further, the Gas Control Module, including：
For discharging the permeability cell of air, sliding block, spring in the capacitance detector；
The sliding block is placed in inside the permeability cell, and the spring one end is connected with the sliding block, the other end and permeability cell
Blind end connects, and the permeability cell opens up through hole and Oil Tank external world phase between the sliding block and the permeability cell blind end
It is logical.
Further, the capacitance detector, including：
The bottom of two inverted U-shaped coaxial metal outer tubes and metal inner pipe composition, the metal outer pipe and the metal inner pipe
End uses insulating materials PVC connections, and intercommunicating pore, the metal outer pipe and the metal inner pipe point are set on the metal outer pipe wall
It is not connected with the capacitance measurement chip input, the inverted U-shaped metal outer pipe is connected with the permeability cell.
Further, the intercommunicating pore is 6 manholes being uniformly arranged on the metal outer pipe wall.
Further, in addition to for showing the display module of the Oil Tank oil mass, the display module and the monolithic
Machine output end connects.
The embodiment of the present invention is used to measure the capacitance detector of ship Oil Tank liquid level, according in the capacitance detector
Oil/AIR Proportional corresponding to capacitance be converted into the capacitance measurement chip of data signal, be converted into the data signal
The single-chip microcomputer of the Oil Tank oil mass, the Gas Control Module for keeping the capacitance detector inner air invariablenes pressure of liquid；The electricity
Hold detector to be connected with the capacitance measurement chip input, the capacitance measurement chip output is connected with the single-chip microcomputer.
Solve the problems, such as the liquid level inaccuracy that Oil Tank is measured when ship Oil Tank liquid level fluctuates, improve ship Oil Tank liquid level gauging
The degree of accuracy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is condenser type ship Oil Tank liquid surface measuring device structural representation of the present invention；
Fig. 2 is condenser type ship Oil Tank liquid surface measuring device overall schematic of the present invention；
Fig. 3 is the capacitance detector structural representation of condenser type ship Oil Tank liquid surface measuring device of the present invention；
Fig. 4 is condenser type ship Oil Tank liquid surface measuring device overall schematic of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is condenser type ship Oil Tank liquid surface measuring device structural representation of the present invention, as shown in figure 1, the present embodiment
Device can include：
For measuring the capacitance detector 101 of ship Oil Tank liquid level, according to oil/air in the capacitance detector
Capacitance corresponding to ratio is converted into the capacitance measurement chip 102 of data signal, the data signal is converted into the oil
The single-chip microcomputer 103 of cabinet oil mass, the Gas Control Module 104 for keeping the capacitance detector inner air invariablenes pressure of liquid；
The capacitance detector 101 is connected with the input of capacitance measurement chip 102, the Gas Control Module 104,
The output end of capacitance measurement chip 102 is connected with the single-chip microcomputer 103.
Further, the Gas Control Module, including：
For discharging the permeability cell of air, sliding block, spring in the capacitance detector；
The sliding block is placed in inside the permeability cell, and the spring one end is connected with the sliding block, the other end and permeability cell
Blind end connects, and the permeability cell opens up through hole and Oil Tank external world phase between the sliding block and the permeability cell blind end
It is logical.
Specifically, Fig. 2 is the Gas Control Module structural representation of condenser type ship Oil Tank liquid surface measuring device, is such as schemed
Shown in 2,1 it is permeability cell blind end, 2 is permeability cell, 3 is sliding block and 4 is spring.The permeability cell and inverted U-shaped capacitance detector
Metal outer pipe be connected, connect electric capacity inner air and ambient atmosphere.Sliding block one end is connected to spring, can slide up and down,
And seal caliber.The Gas Control Module is used to control electric caused by the irregular movement of liquid level when Oil Tank is in ship inclination
Hold the air/oil rate variable inside detector.Ensure the electric capacity measured by capacitance detector in the irregular fluctuation of pasta
It is worth constant, influence of the elimination liquid fluctuating to measurement result.
Further, the capacitance detector, including：
The bottom of two inverted U-shaped coaxial metal outer tubes and metal inner pipe composition, the metal outer pipe and the metal inner pipe
End uses insulating materials PVC connections, and intercommunicating pore, the metal outer pipe and the metal inner pipe point are set on the metal outer pipe wall
It is not connected with the capacitance measurement chip input, the inverted U-shaped metal outer pipe is connected with the permeability cell.
Specifically, Fig. 3 be condenser type ship Oil Tank liquid surface measuring device capacitance detector structural representation, such as Fig. 3
It is shown, 5 be inverted U-shaped metal outer pipe, 6 be insulating materials PVC, 7 be with 1 coaxial inverted U-shaped metal inner pipe, 8 be intercommunicating pore.The gold
Category outer tube is connected with the bottom of metal inner pipe using insulating materials PVC, and the metal outer pipe and metal inner pipe are as the capacitance detecting
Two capacitor plates of device.Fluid in ship Oil Tank flows in or out the inverted U-shaped electric capacity by the intercommunicating pore on metal outer pipe wall
Detector.When fluid flows in or out, oil/AIR Proportional in the capacitance detector changes, due to water and fluid
Dielectric constant is different, and the dielectric constant values in region correspondingly change between two capacitor plates, so as to cause the change of capacitance.
According to this principle, ensureing that oil/AIR Proportional is equal in Oil Tank on the premise of oil/AIR Proportional in measurement capacitance detector, only
The oil mass of Oil Tank can be tried to achieve by measuring the capacitance size of detection electric capacity.Capacitance detecting chips signal input part passes with electric capacity
Sensor two-plate is connected, and the capacitance that capacitance detector is reflected is converted into data signal.Capacitance measurement chip is by the data
Signal is sent to single-chip microcomputer, and single-chip microcomputer will be converted into Oil Tank oil mass after the signal transacting, and be shown on display module.
The embodiment of the present invention is used to measure the capacitance detector of ship Oil Tank liquid level, according in the capacitance detector
Oil/AIR Proportional corresponding to capacitance be converted into the capacitance measurement chip of data signal, be converted into the data signal
The single-chip microcomputer of the Oil Tank oil mass, the Gas Control Module for keeping the capacitance detector inner air invariablenes pressure of liquid；The electricity
Hold detector to be connected with the capacitance measurement chip input, the capacitance measurement chip output is connected with the single-chip microcomputer.
Solve the problems, such as the liquid level inaccuracy that Oil Tank is measured when ship Oil Tank liquid level fluctuates, improve ship Oil Tank liquid level gauging
The degree of accuracy.
Fig. 4 is condenser type ship Oil Tank liquid surface measuring device overall schematic of the present invention, as shown in figure 4,101 are expressed as down
U-shaped capacitance detector, 104 be Gas Control Module, and 9 be Oil Tank, 10 is fluid in Oil Tank, 11 is stomata.
In the present embodiment, condenser type ship Oil Tank liquid surface measuring device is positioned in ship Oil Tank and is used to measure in Oil Tank
The oil mass of fluid.
The state of its work is divided into following several：
First, when oil mass is reduced in Oil Tank, fluid liquid level declines, and the liquid level in inverted U-shaped capacitance detector is with Oil Tank liquid
Face declines.So as to which the air in inverted U-shaped capacitance detector produces constant negative pressure, when the pressure difference with external atmosphere pressure reaches certain value
When, the pressure differential overcomes spring tension to move down sliding block, and permeability cell is turned on by stomata with ambient atmosphere.Outside air from
Stomata enter inverted U-shaped capacitance detector in, until in inverted U-shaped capacitance detector air pressure it is equal with atmospheric pressure, sliding block due to
The pulling force of spring returns to initial position.
2nd, when oil mass increase in Oil Tank, fluid liquid level rises, and the liquid level in inverted U-shaped capacitance detector is with Oil Tank liquid
Face rises, so as to which the air in inverted U-shaped capacitance detector produces constant positive pressure, when the pressure difference with external atmosphere pressure reaches certain value
When, the pressure differential overcomes the pulling force of spring to move up sliding block, and permeability cell is turned on by stomata with ambient atmosphere, inverted U-shaped electricity
The air held in detector is discharged in outside air from stomata, until the air pressure and atmospheric pressure in inverted U-shaped capacitance detector
Equal, sliding block returns to initial position due to the pulling force of spring.
3rd, when Oil Tank liquid fluctuating, the liquid level in inverted U-shaped capacitance detector is also with fluctuation, inverted U-shaped capacitance detector
Both ends can produce that certain liquid level is poor, and elastic force caused by the camber of spring above and below the sliding block of Gas Control Module is kept
Sliding block can not on move to permeability cell conducting.Therefore during Oil Tank liquid fluctuating, permeability cell keeps closing, the content of U-shaped inner air tube
Keep constant, namely oil/AIR Proportional is constant, the capacitance that detection electric capacity measures is constant, finally converts what is obtained by single-chip microcomputer
Oil Tank oil mass is also constant.
The embodiment of the present invention is used to measure the capacitance detector of ship Oil Tank liquid level, according in the capacitance detector
Oil/AIR Proportional corresponding to capacitance be converted into the capacitance measurement chip of data signal, be converted into the data signal
The single-chip microcomputer of the Oil Tank oil mass, the Gas Control Module for keeping the capacitance detector inner air invariablenes pressure of liquid；The electricity
Hold detector to be connected with the capacitance measurement chip input, the capacitance measurement chip output is connected with the single-chip microcomputer.
Solve the problems, such as the liquid level inaccuracy that Oil Tank is measured when ship Oil Tank liquid level fluctuates, improve ship Oil Tank liquid level gauging
The degree of accuracy.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (4)
- A kind of 1. condenser type ship Oil Tank liquid surface measuring device, it is characterised in that including：For measuring the capacitance detector of ship Oil Tank liquid level, according to the oil in the capacitance detector/AIR Proportional institute Corresponding capacitance is converted into the capacitance measurement chip of data signal, the data signal is converted into the list of the Oil Tank oil mass Piece machine, the Gas Control Module for keeping the capacitance detector inner air invariablenes pressure of liquid；The capacitance detector is connected with the capacitance measurement chip input, the Gas Control Module, the capacitance measurement Chip output is connected with the single-chip microcomputer；The Gas Control Module, including：For discharging the permeability cell of air, sliding block, spring in the capacitance detector；The sliding block is placed in inside the permeability cell, and the spring one end is connected with the sliding block, the other end and ventilative duct occlusion End connection, the permeability cell open up through hole between the sliding block and the permeability cell blind end and communicated with the Oil Tank external world.
- 2. device according to claim 1, it is characterised in that the capacitance detector, including：Adopt the bottom of two inverted U-shaped coaxial metal outer tubes and metal inner pipe composition, the metal outer pipe and the metal inner pipe With insulating materials PVC connections, intercommunicating pore is set on the metal outer pipe wall, the metal outer pipe and the metal inner pipe respectively with The capacitance measurement chip input connection, the inverted U-shaped metal outer pipe are connected with the permeability cell.
- 3. device according to claim 2, it is characterised in that the intercommunicating pore is 6 and is uniformly arranged on outside the metal Manhole on tube wall.
- 4. device according to claim 1, it is characterised in that also include being used for the display mould for showing the Oil Tank oil mass Block, the display module are connected with the single-chip microcomputer output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803595.4A CN104634416B (en) | 2014-12-18 | 2014-12-18 | Condenser type ship Oil Tank liquid surface measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803595.4A CN104634416B (en) | 2014-12-18 | 2014-12-18 | Condenser type ship Oil Tank liquid surface measuring device |
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| Publication Number | Publication Date |
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| CN104634416A CN104634416A (en) | 2015-05-20 |
| CN104634416B true CN104634416B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410803595.4A Active CN104634416B (en) | 2014-12-18 | 2014-12-18 | Condenser type ship Oil Tank liquid surface measuring device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2223622A1 (en) * | 1973-03-26 | 1974-10-25 | Eppmann Heinrich | Liquefied gas bottle contents level indicator - has variable-length internal probe with constant measure length |
| CN202562562U (en) * | 2012-02-10 | 2012-11-28 | 梁支信 | U-shaped capacitance level gauge |
| CN203148514U (en) * | 2013-01-24 | 2013-08-21 | 李晓刚 | Capacitive self-adaptation liquid level sensor |
| CN204359394U (en) * | 2014-12-18 | 2015-05-27 | 大连海事大学 | Condenser type boats and ships Oil Tank liquid surface measuring device |
-
2014
- 2014-12-18 CN CN201410803595.4A patent/CN104634416B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2223622A1 (en) * | 1973-03-26 | 1974-10-25 | Eppmann Heinrich | Liquefied gas bottle contents level indicator - has variable-length internal probe with constant measure length |
| CN202562562U (en) * | 2012-02-10 | 2012-11-28 | 梁支信 | U-shaped capacitance level gauge |
| CN203148514U (en) * | 2013-01-24 | 2013-08-21 | 李晓刚 | Capacitive self-adaptation liquid level sensor |
| CN204359394U (en) * | 2014-12-18 | 2015-05-27 | 大连海事大学 | Condenser type boats and ships Oil Tank liquid surface measuring device |
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| Publication number | Publication date |
|---|---|
| CN104634416A (en) | 2015-05-20 |
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Effective date of registration: 20220117 Address after: 116026 No. 1, Ling Hai Road, Liaoning, Dalian Patentee after: Dalian Maritime University Patentee after: Shanghai Shipping Research Institute Co., Ltd Address before: 116026 1 Linghai Road, hi tech park, Dalian, Liaoning Patentee before: Dalian Maritime University |
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