CN205470877U - Floor formula prevents shaking device suitable for motion liquid conduit head - Google Patents
Floor formula prevents shaking device suitable for motion liquid conduit head Download PDFInfo
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- CN205470877U CN205470877U CN201620036034.0U CN201620036034U CN205470877U CN 205470877 U CN205470877 U CN 205470877U CN 201620036034 U CN201620036034 U CN 201620036034U CN 205470877 U CN205470877 U CN 205470877U
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Abstract
This application scheme relates to a floor formula prevents shaking device suitable for motion liquid conduit head, its characterized in that, the device of preventing shaking includes the rectangle conduit head, it prevents shaking the subassembly to be provided with the floor formula in the rectangle conduit head, prevent shaking the subassembly including " Z " font floor and the window formula structure of setting on the floor. The device overall structure design benefit, compactness, processing and simple to operate, with low costs to can show and improve the conduit head and when move preventing under the environment at various topping ups and shake the effect.
Description
Technical field
This utility model relates to a kind of fin-plate type anti-shaking device being applicable to motive liquid tank, belongs to Engineering Control technical field.
Background technology
Liquid sloshing problem in motion tank is a typical fluid (i.e. liquid in tank) and solid (tank) coupled motions problem.That is: tank is by, after external impact effect (such as acceleration, braking, stormy waves, collision etc.), being transferred to its intracavity liquid by its wall by this percussion；But owing to not being completely filled with liquid in tank, therefore first unstability all liq in driving tank are all presented large scale, irregular reciprocating motion state by the liquid near cavity.
Liquid sloshing problem is widely present in fuel feed system or the Load leveling system in the fields such as Aero-Space, Naval Architecture and Ocean Engineering, land transportation.Such as, in aircraft takeoff, landing or high maneuver flight course, owing to accelerating or braking action, the fuel oil in fuel tank can produce large scale and rock.This liquid sloshing can bring following adverse effect: (1) produces reciprocating impact load to Oiltank structure, causes structural fatigue to destroy；(2) when fuel tank oil material is fewer, the large scale of fuel oil is irregularly rocked and may be interrupted fuel delivery temporarily, causes engine cut-off, aircraft to run out of steam, brings potential threat to safe flight；(3) the irregular change at fuel system center, may the overall center of gravity of change of flight device, thus affect the flight stability of aircraft.Similar problem, is also widely present in the fuel tank of aerospace craft, marine fuel oil feed system and setting-out cabin and large-scale liquid goods delivery system (such as Large Oil tank car, LPG ship, floating production storage unit, ultra large crude carrier etc.).
Liquid in tank once shakes and moves up, it will be difficult to recover to resting state.In the case of not having foreign intervention, and if only if after its kinetic energy dissipates into heat by the rubbing action between liquid internal and liquid with tank wall completely, and sloshing fluid could static get off.This process is the veryest long.This problem is especially prominent under the weightlessness such as high-speed maneuver or space travel or microgravity environment.Such as, after under microgravity environment, the liquid fuel in satellite tank rocks, it usually needs within tens of to hundreds of seconds, just can settle out.
The ultimate principle of tank anti-shake technology is, utilizes external device (ED), increases the damping of liquid sloshing, thus accelerates the stabilization process of sloshing fluid.The most commonly used anti-shake technology includes, installs the anti-shake paster of definite shape (such as circle, annular, rectangle etc.) at tank wall, or tank is divided into multiple independent cabin.These technology alleviate the tank liquid sloshing potential security threat to whole bearing system to a certain extent, but the problem rocked the most fundamentally solves.
Utility model content
For the liquid sloshing problem in above-mentioned motion tank, this application provides a kind of more effectively anti-shaking device design.This device overall construction design is ingenious, compact, processing and easy for installation, low cost, and can significantly improve tank anti-shake effect under various topping ups when movement environment.
To achieve these goals, the technical solution of the utility model is as follows: be applicable to the fin-plate type anti-shaking device of motive liquid tank, it is characterized in that, described anti-shaking device includes rectangular containers, being provided with fin-plate type anti-shake assembly in described rectangular containers, described anti-shake assembly includes " Z " font floor and the window structure being arranged on floor.
As a kind of improvement of the present utility model, a series of window structures arranged on " Z " font floor are arranged symmetrically along short transverse.
As a kind of improvement of the present utility model, a height of h of described floor, " Z " font wavelength is λ；The a series of window structures arranged on " Z " font floor are arranged symmetrically along short transverse, and the width of windowing of window structure, length, angle and spacing of windowing are designated as a, b, β, c respectively.
A kind of improve as of the present utility model, the long L of rectangular containers, wide B, high H, anti-shake module diagnostic parameter h, λ, a, b, β, c reasonable value scope as follows: h=0.5H ~ 0.8H, λ=B/4 ~ B/2, a=0.2 λ ~ 0.4 λ, b=0.1a ~ 2.0a, β=60 ° ~ 120 °, c=0.2b ~ 1.0b.Owing to the liquid tank size range difference in different engineering fields is very big (tank length range is about L=0.5m ~ 50m, width range is about B=0.5m ~ 10m, altitude range is about H=0.1m ~ 10m), the most here with tank a size of with reference to the characteristic parameter describing fin-plate type anti-shaking device.When tank length L be several times as much as that it is wide, high yardstick time, multiple fin-plate type anti-shaking device can be arranged along its length.Now, the arrangement pitch of anti-shaking device desirable d=1.0 λ ~ 5.0 λ.
As a kind of improvement of the present utility model, described anti-shake assembly uses steel, aluminum, aluminium alloy or composite manufacture.Economy and durability.
As a kind of improvement of the present utility model, the quantity of described anti-shake assembly is at least one.
Relative to prior art, advantage of the present utility model is as follows: 1) this technical scheme overall construction design is ingenious, compact conformation, 2) " Z " font floor 201 is combined by this technical scheme with abundant window solid 202, more various dimensions can be triggered in sloshing fluid system, the vortex motion structure of more large scale scope (vortex range scale segments to λ/4 even miniature scale from several times λ), window structure additionally aids and quickly realizes quality between the sloshing fluid of floor both sides simultaneously, momentum and energy " peak load shifting ", these technical advantages just, make present design that the liquid fast and stable in motion tank can be made to get off.Usually, the sloshing fluid stabilized speed of the application scheme can a magnitude faster than existing design；3) this technical scheme cost is told somebody what one's real intentions are, it is simple to large-scale popularization and application.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram；
Fig. 2 is window structural representation；
Fig. 3 is another example structure schematic diagram of this utility model.
In figure: 101, rectangular containers, 201, anti-shake assembly, 202, window structure.
Detailed description of the invention
In order to deepen to be appreciated and understood by of the present utility model, this utility model is expanded on further with detailed description of the invention below in conjunction with the accompanying drawings.
Embodiment 1 :See Fig. 1, a kind of fin-plate type anti-shaking device being applicable to motive liquid tank, described anti-shaking device includes rectangular containers 101, fin-plate type anti-shake assembly 201 it is provided with in described rectangular containers, described anti-shake assembly 201 includes " Z " font floor and the window structure 202 being arranged on floor, the a series of window structures arranged on " Z " font floor are arranged symmetrically along short transverse, and described anti-shake assembly uses steel, aluminum, aluminium alloy or composite manufacture, economy and durability.The quantity of described anti-shake assembly is at least one.
Embodiment 2 :Seeing Fig. 1, described fin-plate type anti-shaking device design is as it is shown in figure 1, the length of note rectangular containers 101 is respectively L, B, H, and tank is internal fills liquid (such as fuel, oil plant, water etc.).Fin-plate type anti-shaking device 201 end face is smooth with tank inwall, and device is in " Z " font geometry.The note a height of h of anti-shaking device, " Z " font wavelength is λ, " Z " font floor is provided with a series of window structure 202, and be arranged symmetrically along short transverse, Fig. 2 gives the enlarged diagram of window structure 202 on " Z " font floor 201, width, length, the angle of wherein windowing and spacing of windowing and is designated as a, b, β, c respectively.When liquid sloshing problem usually occurs in tank fill ratio less than 100%, fill ratio refers to remaining liq volume and the ratio of tank internal volume in tank.When fill ratio is about 50%, the overall gravity center shift problem of the tank system (i.e. tank and internal liquid thereof) that liquid sloshing is caused is the most prominent.Based on this understanding, the reasonable value scope of anti-shaking device 201 characteristic parameter h, λ, a, b, β, c is as follows: h=0.5H ~ 0.8H, λ=B/4 ~ B/2, a=0.2 λ ~ 0.4 λ, and b=0.1a ~ 2.0a, β=60 ° ~ 120 °, c=0.2b ~ 1.0b.
When tank length dimension L is bigger, multiple anti-shaking device (for the ease of mapping, the window structure 202 on anti-shaking device surface do not marks, but actually exists) can be arranged along its length, as shown in Figure 3.Wherein, the zone of reasonableness of spacing d of anti-shaking device is d=1.0 λ ~ 5.0 λ.
The operation principle of the application scheme is as follows, when tank internal liquid rocks under additional incentive action, first the large scale mass motion (motion scale is about L magnitude) of rolling producing fluid level will be separated into multiple local motion (motion scale is d magnitude) by anti-shake floor；Owing to anti-shake floor uses " Z " word-lifting formula, therefore the liquid sloshing between anti-shake floor or between anti-shake floor and tank inwall will be further divided into the motion that yardstick is λ/2 magnitude, and produce a large amount of yardsticks local spiral structure less than λ/4 magnitude in each " Z " type corner.Liquid motion form in anti-shake floor both sides is contrary, it may be assumed that in the period of motion under same extrinsic motivated effect, side liquid flows to floor, and this side rib plate surface pressing increases；Opposite side liquid floor dorsad flows, and this side rib plate surface pressing will reduce.Therefore, floor surface configuration a large amount of window structure will have following two effect: (1) forms 202 will produce the more multiple dimensioned local spiral structure less than λ/4 magnitude (or b/2 magnitude) in " Z " type turning, and these local spiral structures generally with before this merely due to " Z " type hangs that angle acts on and the local spiral structure of λ/3 magnitude that produces is vertical, namely forms 202 will promote the flowing three dimensional stress in " Z " type turning, small scalization；(2) liquid of adjacent both sides will transmit through window design on window mass exchange, momentum and the energy, namely floor on floor and will have the effect of " peak load shifting " to the sloshing fluid of adjacent both sides.From hydromechanical ultimate principle: the main energetic of fluid motion is all gathered in large scale fluidal texture, i.e. " containing energy structure "；The dissipation mechanism of fluid motion is, the kinetic energy of fluid motion always to the transmission of little yardstick fluidal texture and is finally dissipated into heat energy by large scale fluidal texture in miniature scale.When all kinetic energy of fluid motion are all dissipated into heat, whole fluid system gets off with regard to totally stationary.The design of above-mentioned fin-plate type anti-shaking device has fully demonstrated the ultimate principle of this fluid motion, the mass motion of liquid sloshing in tank is divided into the local spiral structure of three Spatial Dimensions, multiple yardstick by it, the kinetic energy making liquid sloshing is transferred to rapidly the fluidal texture (i.e. vortex) of mesoscale, little yardstick and miniature scale by large scale mass motion, acceleration energy dissipation process, the liquid immediate stability rocked in the most just promoting tank gets off.As it was previously stated, the fin-plate type anti-shaking device described in the application scheme is applicable to the liquid tank of each transport fields such as Aero-Space, Naval Architecture and Ocean Engineering, land traffic.The scale difference of these tanks is very big, generally can be up to 1-2 magnitude.Such as, the scope of tank length L is about the fuel tank radius of L=0.5m ~ 50m(such as aerospace craft and is about 0.5m magnitude, mammoth tanker loads the tank length of oil plant up to 50m magnitude), the scope of width B is about B=0.5m ~ 10m, and the scope of highly H is about H=0.1m ~ 10m.Therefore, in above-mentioned introduction, we describe the characteristic parameter of fin-plate type anti-shaking device with tank a size of reference.It is emphasized that Fig. 1 is the fin-plate type anti-shaking device schematic diagram of design as a example by rectangular liquid tank.We are not difficult to extend to this scheme in the liquid tank of other shapes.
Application Example ,:
The relevant parameter of the application design 1 is as follows, the long L of tank, wide B, high H are respectively 0.5m, 0.2m, 0.1m, fin-plate type anti-shaking device characteristic parameter is: h=0.08m, λ=0.1m, a=0.04m, b=0.02m, β=70 °, c=0.005m, d=0.25m(install 2 anti-shaking devices, wherein the 1st distance tank front end 0.125m along its length).Tank initial velocity is 0, initial acceleration is 10m/s2, fill ratio 75%.In tank, liquid is 2.1s from starting to rock to stable (tank system gravity displacement is less than 0.001 relative to the amplitude of tank length L) required time, is 9.5s to the time that liquid is totally stationary；And the time needed for using traditional method (as sidewall installs the anti-shake sheet of 10 0.01m × 0.01m sizes) is respectively 8.1s and 46.7s.
The relevant parameter of the application design 2 is as follows.The long L of tank, wide B, high H are respectively 0.5m, 0.2m, 0.1m, and fin-plate type anti-shaking device characteristic parameter is: h=0.08m, λ=0.1m, a=0.04m, b=0.02m, β=70 °, c=0.005m, d=0.25m(install 2 anti-shaking devices, wherein the 1st distance tank front end 0.125m along its length).Tank initial velocity is 0, initial acceleration is 10m/s2, fill ratio 50%.In tank, liquid is 3.6s from starting to rock to stable (tank system gravity displacement is less than 0.001 relative to the amplitude of tank length L) required time, is 12.1s to the time that liquid is totally stationary；And the time needed for using traditional method (as sidewall installs the anti-shake sheet of 10 0.01m × 0.01m sizes) is respectively 13.5s and 83.6s.
The relevant parameter of the application design 3 is as follows.The long L of tank, wide B, high H are respectively 1.5m, 1.0m, 1.0m, and fin-plate type anti-shaking device characteristic parameter is: h=0.8m, λ=0.5m, and a=0.1m, b=0.1m, β=60 °, c=0.02m, d=0m(only install 1 anti-shaking device).Tank initial velocity is 0, initial acceleration is 5m/s2, fill ratio 50%.In tank, liquid is 5.1s from starting to rock to stable (tank system gravity displacement is less than 0.001 relative to the amplitude of tank length L) required time, is 42.6s to the time that liquid is totally stationary；And the time needed for using traditional method (as sidewall installs the anti-shake sheet of 15 0.1m × 0.1m sizes) is respectively 18.4s and 120.5s.
The relevant parameter of the application design 4 is as follows.The long L of tank, wide B, high H are respectively 20m, 2.0m, 1.0m, and fin-plate type anti-shaking device characteristic parameter is: h=0.8m, λ=1.0m, a=0.4m, b=0.1m, β=120 °, c=0.05m, d=4m(install 5 anti-shaking devices, wherein the 1st distance tank front end 2m along its length).Tank initial velocity is 0, initial acceleration is 5m/s2, fill ratio 50%.In tank, liquid is 13.4s from starting to rock to stablizing (tank system gravity displacement is less than 0.001 relative to the amplitude of tank length L) required time, to the time 131.2s that liquid is totally stationary；And the time needed for using traditional method (as sidewall installs the anti-shake sheet of 40 0.1m × 0.1m sizes) is respectively 46.2s and 387.4s.
Similarly, other parametric scheme can be supplemented.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or replacement each fall within this utility model scope of the claimed protection.
Claims (6)
1. the fin-plate type anti-shaking device being applicable to motive liquid tank, it is characterized in that, described anti-shaking device includes rectangular containers, is provided with fin-plate type anti-shake assembly in described rectangular containers, and described anti-shake assembly includes " Z " font floor and the window structure being arranged on floor.
The fin-plate type anti-shaking device being applicable to motive liquid tank the most according to claim 1, it is characterised in that a series of window structures arranged on " Z " font floor are arranged symmetrically along short transverse.
The fin-plate type anti-shaking device being applicable to motive liquid tank the most according to claim 2, it is characterised in that a height of h of described floor, " Z " font wavelength is λ；The a series of window structures arranged on " Z " font floor are arranged symmetrically along short transverse, and the width of windowing of window structure, length, angle and spacing of windowing are designated as a, b, β, c respectively.
The fin-plate type anti-shaking device being applicable to motive liquid tank the most according to claim 3, it is characterized in that, the long L of rectangular containers, wide B, high H, anti-shake module diagnostic parameter h, λ, a, b, β, c reasonable value scope as follows: h=0.5H ~ 0.8H, λ=B/4 ~ B/2, a=0.2 λ ~ 0.4 λ, b=0.1a ~ 2.0a, β=60 ° ~ 120 °, c=0.2b ~ 1.0b.
5. according to the fin-plate type anti-shaking device being applicable to motive liquid tank described in Claims 2 or 3, it is characterised in that described anti-shake assembly uses steel, aluminum, aluminium alloy or composite manufacture.
6. according to the fin-plate type anti-shaking device being applicable to motive liquid tank described in Claims 2 or 3, it is characterised in that the quantity of described anti-shake assembly is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036034.0U CN205470877U (en) | 2016-01-15 | 2016-01-15 | Floor formula prevents shaking device suitable for motion liquid conduit head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620036034.0U CN205470877U (en) | 2016-01-15 | 2016-01-15 | Floor formula prevents shaking device suitable for motion liquid conduit head |
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| CN205470877U true CN205470877U (en) | 2016-08-17 |
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| CN201620036034.0U Withdrawn - After Issue CN205470877U (en) | 2016-01-15 | 2016-01-15 | Floor formula prevents shaking device suitable for motion liquid conduit head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600211A (en) * | 2016-01-15 | 2016-05-25 | 南京北大工道创新有限公司 | Rib-plate type shaking preventing device suitable for moving liquid storage box |
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2016
- 2016-01-15 CN CN201620036034.0U patent/CN205470877U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600211A (en) * | 2016-01-15 | 2016-05-25 | 南京北大工道创新有限公司 | Rib-plate type shaking preventing device suitable for moving liquid storage box |
| CN105600211B (en) * | 2016-01-15 | 2018-02-06 | 南京北大工道创新有限公司 | A kind of fin-plate type anti-shaking device suitable for motive liquid tank |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20180206 |
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| AV01 | Patent right actively abandoned |