Fluid leakage quantitative measurement device between a kind of parallel flat gap
Technical field
This utility model belongs to the gap flowing theoretical category in hydrodynamics, particularly a kind of parallel flat seam
Fluid leakage quantitative measurement device between gap.
Background technology
Due to the particularity of fluid, for the research of fluid flowing in gap, it is the most more theoretical
Research, especially than more complete theoretical basis in terms of Laminar Flow.Along with sending out of computer technology
Exhibition, computational fluid dynamics (CFD) plays greatly for aspects such as Study of Fluid motor process, fluid structurecoupling
Assosting effect, have become as the Kinds of Essential Software of current Study of Fluid, be widely applied to automobile, aviation boat
My god, the field such as chemical industry.
But either Theoretical Calculation or analog simulation, uncertain due to boundary condition and stress and strain model
Property, all cannot reflect the mobility status of fluid the most really.So having one group of experimental data determined
It is most important, the most convictive.
The experimental provision of current existing parallel flat gap flowing is that comparison is single, can only be at fixing seam
Single Medium, the experiment of single viscous liquid is carried out under gap height.If doing the experiment of different chinky altitude,
Then to produce the experimental provision of the different gap size of a lot of set, finish a set of experimental provision every time, need to change
A set of experimental provision, which not only adds experimental cost, and greatly reduces conventional efficient.Existing reality
Experiment device can not realize regulating the function of chinky altitude in set of device, can not realize in set of device
Upper replacement media or the function by regulation temperature change liquid viscosity.
Summary of the invention
The purpose of this utility model is: provide one to be capable of that chinky altitude is adjustable, medium is replaceable,
Viscosity can change by heating, for research parallel flat seam interstitial liquid leakage under certain pressure differential
Experimental provision.Be applicable to different pressures, different medium, different viscosities liquid are flowing through the flat of differing heights
The mensuration of leakage rate during row flat board gap, this device can be that scientific research institutions and enterprise are at hydrodynamics, hydraulic pressure
The problem relating to parallel flat slot leakage in the research such as transmission, positive displacement pump provides experimental data, also for reason
Opinion calculates and hydrodynamic simulation provides experiment evidence.
For solving above-mentioned technical problem, structure of the present utility model includes
Quantitative measurement device, described quantitative measurement device includes base plate, top board, dynamic plate and altitude mixture control machine
Structure, described top board is bolted to connection on base plate, offers use between described base plate and top board
In the groove of the dynamic plate height of regulation, described dynamic plate is positioned at groove, and described dynamic plate passes through altitude mixture control machine
Structure is connected with top board, leaves gap between described dynamic plate and groove floor, and the both sides of described base plate are respectively
Offering inlet opening and liquid outlet, described inlet opening is connected with gap respectively with liquid outlet, the described end
Plate and skirt walls offer seal groove,
Double-action plunger pump, described double-action plunger pump is connected with the inlet opening of base plate by input duct,
Described double-action plunger pump is connected with reserving liquid tank by liquid suction pipe, and described liquid suction pipe is provided with liquid mistake
Filter,
Measuring cup, described measuring cup is connected with the liquid outlet of base plate by drain pipe road,
Oil cylinder, described double-action plunger pump is driven by oil cylinder, described oil cylinder and hydraulic oil cylinder driving system
System is connected.
Further: offering four elevation carrection holes on described top board, described elevation carrection hole is positioned at dynamic
The surface of plate.
Further: described height adjustment mechanism includes studs, locking nut and adjusting nut, institute
The studs stated is provided with four, and described top board offers four matched with four studs
Through hole, four described through holes are positioned at the surface of dynamic plate, and the lower end of four described studs is worn respectively
Crossing corresponding four through hole and be connected to the top of dynamic plate, the upper end of four described studs all connects to be had
Locking nut and adjusting nut, described locking nut contacts with the bottom surface of top board, described adjusting nut
Contact with the end face of top board.
Further: the upper end of described studs is trapezoidal thread, the lower end of described studs is
Triangle thread.
Further: described double-action plunger pump includes housing, plunger, bead and big ball, described post
The upper end of plug is connected with oil cylinder, the lower end of described plunger stretches in housing, the described housing that is positioned at
The epicoele of circulating liquid, the lower end of described plunger and shell is formed between a section of its lateral wall and housing of plunger
Forming the cavity of resorption of circulating liquid between body, the bottom of described housing offers liquid sucting port, described liquid sucting port
Being connected with cavity of resorption, the side of described housing offers liquid outlet, and described liquid outlet is connected with epicoele,
Being further opened with transfer passage and conveying chamber in the lower end of described plunger, it is logical that described cavity of resorption passes sequentially through conveying
Road is connected with epicoele with conveying chamber, and described bead is movably connected in conveying chamber, and described big ball is movable
Being connected to lower intracavity, described liquid sucting port is connected with reserving liquid tank by liquid suction pipe, and described liquid outlet 18 leads to
Cross input duct to be connected with the inlet opening of base plate.
Further: the diameter of described bead is more than the diameter of transfer passage, and plunger is during rising
Transfer passage is blocked by bead, the diameter of described big ball more than the diameter of liquid sucting port, plunger under
During fall, liquid sucting port is blocked by big ball.
Further: described hydraulic oil cylinder driving system include fuel tank, oil pump, overflow valve, first throttle valve,
First Pressure gauge and reversal valve, described oil pump is connected with fuel tank by pumping pipelines, described pumping pipelines
On oil filter is installed, described oil pump is connected with oil cylinder by oil pipeline, described overflow valve, first
Choke valve, the first Pressure gauge and reversal valve are separately mounted on oil pipeline.
Further: second throttle and the second Pressure gauge are installed in described input duct.
Further: described reserving liquid tank is connected with temperature controller.
Further: in described reserving liquid tank, store the one in water, oil or emulsion.
After using said structure, advantage of the present utility model is as follows:
(1) this utility model uses the studs that machining accuracy is higher, and one end is trapezoidal thread, uses
In regulation gap size;The other end is triangle thread, is used for connecting dynamic plate.Stress in order to avoid dynamic plate
Inequality causes chinky altitude error, is uniformly mounted with fourth officer studs, and uses a kind of high-precision on device
The depth calibrator of degree carries out the measurement of gap size, makes chinky altitude regulation reach the precision of 0.01mm.
(2) this utility model devises a kind of special " double-action plunger pump ", can carry the difference such as oil, water
The liquid of classification, operating pressure up to 10Mpa, meet different pressures, different medium fluid parallel flat
The quantitative measurement of leakage between plate gap.
(3) this utility model is provided with special heating apparatus in liquid transmission pipeline, can carry different viscosities
Liquid, meet the quantitative measurement that the fluid of different viscosities leaks between parallel flat gap.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of quantitative measurement device.
Fig. 2 is the structural representation of double-action plunger pump.
Fig. 3 is the piping diagram of the design.
Detailed description of the invention
Fluid leakage quantitative measurement device between a kind of parallel flat gap as shown in figures 1 and 3, including fixed
Amount determining device 30, double-action plunger pump 4, measuring cup 6 and oil cylinder 7, described quantitative measurement device 30 wraps
Including base plate 1, top board 2, dynamic plate 3 and height adjustment mechanism, described top board 2 is bolted to connection
On base plate 1, between described base plate 1 and top board 2, offer the groove for regulating dynamic plate 3 height, institute
The dynamic plate 3 stated is positioned at groove, and described dynamic plate 3 is connected with top board 2 by height adjustment mechanism, described
Dynamic plate 3 and groove floor between leave gap, the both sides of described base plate 1 offer inlet opening 1-1 respectively
It is connected with gap respectively with liquid outlet 2-2 with liquid outlet 1-2, described inlet opening 1-1, described double cropping
It is connected with the inlet opening 1-1 of base plate 1 by input duct with plunger displacement pump 4, described double-action plunger pump 4
It is connected with reserving liquid tank by liquid suction pipe, described liquid suction pipe is provided with liquid filter 5, described measuring cup 6
Being connected with the liquid outlet 1-2 of base plate 1 by drain pipe road, described base plate and skirt walls offer seal groove,
Described double-action plunger pump 4 is driven by oil cylinder 7, described oil cylinder 7 and hydraulic oil cylinder driving system phase
Even, described top board 2 offering four elevation carrection holes 8, four described elevation carrection holes 8 are positioned at dynamic
The surface of plate 3;Second throttle 27 and the second Pressure gauge 28 are installed in described input duct, described
Reserving liquid tank in store the one in water, oil or emulsion.During work, when determining a kind of liquid and one
When chinky altitude is tested, first pass through high accuracy depth measuring instrument and measure from elevation carrection hole 8 dynamic plate 3
Elemental height measure, then by height adjustment mechanism, the height of dynamic plate 3 is adjusted, then leads to
Cross high-precision depth calibrator and measure the height of the dynamic plate 3 after regulating, reciprocal until gap is regulated successively
To desired height, being then turned on auxiliary equipment, regulation pressure, temperature (viscosity) are opened after reaching requirement of experiment
Beginning timing, is driven oil cylinder 7 by hydraulic oil cylinder driving system, makes oil cylinder 7 with double-action plunger pump 4
Move reciprocatingly, the liquid of experiment is extracted from reserving liquid tank and pass through double-action plunger pump 4 and fill to quantitative determining
Putting and pump out, make liquid flow to gap along inlet opening 1-1, the liquid of a portion can pass gap edge
Liquid outlet 1-2 and flow in measuring cup 6, by measuring cup 6, the liquid of leakage is timed collection and measures.This
Utility model devises a kind of special " double-action plunger pump ", can carry the liquid that oil, water etc. are different classes of,
Operating pressure, up to 10Mpa, meets different pressures, the fluid of different medium leaks between parallel flat gap
Quantitative measurement;It not only achieves the liquid leakage experiment that can do different gap size in set of device
Function, and achieve the merit of the leakage experiment that can do different medium, different viscosities liquid in set of device
Energy.
Height adjustment mechanism as shown in Figure 1 includes studs 9, locking nut 10 and adjusting nut 11,
Described studs 9 is provided with four, described top board 2 offers and four studs 9 phases
Four through holes joined, four described through holes are positioned at the surface of dynamic plate 3, four described studs 9
Lower end be each passed through corresponding four through hole and be connected to the top of dynamic plate 3, four described studs 9
Upper end all connect and have locking nut 10 and adjusting nut 11, the end of described locking nut 10 and top board 2
Face contacts, and described adjusting nut 11 contacts with the end face of top board 2, described studs 9 upper
End is trapezoidal thread, and the lower end of described studs 9 is triangle thread.When needing the height to dynamic plate 3
Degree is adjusted, and first unclamps the locking nut 10 below four studs 9, the most micro-rotation studs 9
The adjusting nut 11 of top, promotes the dynamic plate 3 size with change gap, after measuring regulation with depth calibrator
Height, after reaching the chinky altitude of requirement of experiment, screw locking nut 10;The design achieves a set of
The function of the liquid leakage experiment of different gap size can be done on device;And this utility model uses and adds
The studs that work precision is higher, one end is trapezoidal thread, is used for regulating gap size;The other end is triangle
Shape screw thread, is used for connecting dynamic plate.In order to avoid the unbalance stress of dynamic plate causes chinky altitude error, at device
On be uniformly mounted with fourth officer studs, and use a kind of high accuracy depth measuring instrument to carry out gap size
Measure, make chinky altitude regulation reach the precision of 0.01mm.
Double-action plunger pump 4 as shown in Figures 2 and 3 includes housing, plunger 12, bead 13 and big ball
14, the upper end of described plunger 12 is connected with oil cylinder 7, and the lower end of described plunger 12 stretches in housing,
The epicoele of circulating liquid is formed between a section of its lateral wall and housing of the described plunger 12 in housing
15, form the cavity of resorption 16 of circulating liquid, the end of described housing between lower end and the housing of described plunger 12
Portion offers liquid sucting port 17, and described liquid sucting port 17 is connected with cavity of resorption 16, and the side of described housing is opened
Being provided with liquid outlet 18, described liquid outlet 18 is connected with epicoele 15, in the lower end of described plunger 12 also
Offering transfer passage 19 and conveying chamber 20, described cavity of resorption 16 passes sequentially through transfer passage 19 and conveying chamber
20 are connected with epicoele 15, and described bead 13 is movably connected in conveying chamber 20, described big ball 14
Being movably connected in cavity of resorption 16, described liquid sucting port 17 is connected with reserving liquid tank by liquid suction pipe, described
Liquid outlet 18 is connected with the inlet opening 1-1 of base plate 1 by input duct;The diameter of described bead 13
More than the diameter of transfer passage 19, plunger 12 transfer passage 19 during rising is entered by bead 13
Row blocking, the diameter of described big ball 14 is more than the diameter of liquid sucting port 17, and plunger 12 is during declining
Liquid sucting port 17 is blocked by big ball 14.Utilizing double-action plunger pump 4, quantitative measurement device is pumped out
During liquid, plunger 12 is up, and bead 13 blocks transfer passage 19 and discharged by epicoele 15 remaining liq, with
Time cavity of resorption 16 volume increase, under atmospheric action, suck liquid from liquid sucting port 17;Plunger 12 is descending, big ball
14 blocking liquid sucting ports 17, cavity of resorption 16 has liquid to push bead 13 open to discharge from epicoele 15, and remainder exists
Epicoele, back and forth completes the measurement of opposite joint interstitial liquid leakage rate with this.
Hydraulic oil cylinder driving system as shown in Figure 3 include fuel tank, oil pump 21, overflow valve 22, first throttle valve 23,
First Pressure gauge 24 and reversal valve 25, described oil pump 21 is connected with fuel tank by pumping pipelines, described
Being provided with oil filter 26 on pumping pipelines, described oil pump 21 is connected with oil cylinder 7 by oil pipeline, described
Overflow valve 22, first throttle valve the 23, first Pressure gauge 24 and reversal valve 25 be separately mounted to oil pipeline
On.The design is carried to oil cylinder 7 by oil in 21 fuel tanks of oil pump, thus provides power to oil cylinder 7, and
And pressure is adjusted by this utility model by overflow valve 22, by first throttle valve 23, flow is carried out
Regulation, and make oil cylinder 7 move back and forth by reversal valve 25, thus meet the required condition of experiment.
Reserving liquid tank as shown in Figure 3 is connected with temperature controller 29, and the design is by the special dress of heating arranged
The temperature of liquid that putting needs experiment is adjusted, thus changes its viscosity, makes liquid reach required experiment
Standard.This utility model is provided with special heating apparatus in liquid transmission pipeline, can carry different viscosities
Liquid, meets the quantitative measurement that the fluid of different viscosities leaks between parallel flat gap.