CN209729213U - Along journey drag reduction experiment instrument - Google Patents
Along journey drag reduction experiment instrument Download PDFInfo
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- CN209729213U CN209729213U CN201920057489.4U CN201920057489U CN209729213U CN 209729213 U CN209729213 U CN 209729213U CN 201920057489 U CN201920057489 U CN 201920057489U CN 209729213 U CN209729213 U CN 209729213U
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Abstract
Along journey drag reduction experiment instrument, it has two parts composition the utility model discloses a kind of, is liquid meter mixing arrangement and drag reduction measuring device respectively.Liquid meter mixing arrangement is made of high-pressure hydraulic pump, measurer, vacuum gas-liquid mixer, suction hose, metering water tank etc..Wherein vacuum gas-liquid mixer is equipped with vacuum chamber, setting nozzle and diffuser in vacuum chamber, and vacuum chamber is externally provided with vacuum meter and has the suction hose of metering valve.Drag reduction measuring device is then made of self-circulating water feeder, pulsating pump, variable-frequency governor, current stabilization water tank, experimental channel, Instrument for Pressure, flow instrument, flow control valve, water recovery apparatus, return pipe, band plug drainage hole, wastewater disposal basin etc..Spoiler, overflow pipe, stabilier are wherein equipped in current stabilization water tank；Stabilier is laterally provided with steady water hole.This experiment instrument combines mixing arrangement and measuring device, and the relationship of the concentration for seeking drag reducer and drag-reduction effect that can be easy, laboratory apparatus simple, intuitive meets modern teaching requirement.
Description
Technical field
The utility model belongs to chemical engineering experiment instrument field more particularly to a kind of along journey drag reduction experiment instrument.
Background technique
Frictional head loss refers to that in the straight water channel of solid boundaries, the liquid of Unit Weight flow to another from a section
The mechanical energy that section is lost.
There is the every aspect in life in on-way resistance, the liquid such as water supply pipe either lived either fuel oil
Transport, on-way resistance always play an important role, turbulent flow of the Toms in discovery high molecular polymer weak solution in 1948
Frictional resistance is obviously reduced than the resistance of pure solvent, this abnormal phenomenon is known as turbulent flow drag reduction phenomenon or Toms effect.Due to
Toms effect can reduce the energy consumption of fluid machinery and fluid delivery process, therefore studying drag reduction is a present popular class
Topic.
But there are many defects for existing journey drag reduction experiment instrument.Such as water body pressure oscillation is big, flow velocity is unadjustable, and not
Water circulation system is set.In addition, existing experiment instrument does not consider the easy liquid meter mixing arrangement of setting, make to be both needed to every time
It is inconvenient by manually carrying out configuration drag reduction agent solution.
Summary of the invention
The purpose of this utility model overcomes prior art defect, and provides a kind of along journey drag reduction laboratory apparatus.
Itself the specific technical proposal is:
It is a kind of along journey drag reduction experiment instrument, including liquid meter mixing arrangement and drag reduction measuring device；
The liquid meter mixing arrangement includes open metering water tank and vacuum gas-liquid mixer；It is equipped in metering water tank
Blender；The metering water tank is connected with high-pressure hydraulic pump entrance；Vacuum chamber is equipped in the vacuum gas-liquid mixer；It is described true
Empty room top is connected with vacuum meter；Nozzle and diffuser are also set up in the vacuum chamber；The diffuser is located at the extended line of nozzle
On；Moreover, the sharp mouth outlet of nozzle and the wide-mouth entrance of diffuser are oppositely arranged, its spacing is less than 10mm；The vacuum chamber is also
It is connected with suction hose, and the gap between suction hose and the connector face nozzle and diffuser of vacuum chamber；High-pressure hydraulic pump outlet
It is connected by water inlet pipe with the nozzle in vacuum gas-liquid mixer；The entrance of the nozzle is gone out by water inlet pipe and high-pressure hydraulic pump
Mouth is connected；The suction hose is equipped with metering valve, and suction hose water inlet is placed in measurer；The measurer is placed in electronic scale
It weighs on platform；The outlet of the diffuser is connected with outlet pipe, and the water outlet of outlet pipe is located in the metering water tank；
The metering water tank also passes through bottom and crosses self-circulating water feeder phase with valvular pipeline with drag reduction measuring device
Connection；Pulsating pump is equipped in self-circulating water feeder；The drag reduction measuring device further includes the current stabilization water tank being placed on experimental bench,
Current stabilization water tank bottom surface level height is higher than the top surface of self-circulating water feeder；It is equipped in the current stabilization water tank and is arranged in parallel vertically
Overflow plate and water-stabilizing board, and water-stabilizing board be higher than overflow plate；Overflow plate and water-stabilizing board and the side wall of current stabilization water tank and bottom surface are close
Connection, and current stabilization water tank is divided into overflow area, areas of permanent pressure and three, steady pool area；Wherein overflow plate is located at overflow area and steady pool
Between, water-stabilizing board is between steady pool and areas of permanent pressure；The water-stabilizing board is provided with steady water hole laterally to be connected to steady pool and constant pressure
Area；The current stabilization tank top is connected by upper hose with the outlet of pulsating pump, and upper hose is located at going out for current stabilization tank top
Steady pool described in the face of the mouth of a river；The overflow area bottom is connected with overflow pipe upper end；The overflow pipe lower end is connected in self-loopa confession
The top of hydrophone；The lower sidewalls of areas of permanent pressure are equipped with the steady mouth of a river；Steady mouth of a river connection is placed in the horizontal experiment tube on experiment table top
Road import；Experimental channel is equipped with several pressure taps；Pressure tap is connect with Instrument for Pressure；Experimental channel exit end is additionally provided with survey
Flow point, the flow measurement point are connect with flow instrument；Experimental channel outlet is connected by flow control valve with the import of water exit elbow；Out
The outlet of water elbow downwards, and is equipped with open water recovery apparatus below water exit elbow outlet；Water recovery apparatus is placed in experimental bench side, and
The level height of water recovery apparatus bottom surface is higher than at the top of self-circulating water feeder；Pipe inlet, return water are connected back on water recovery apparatus bottom surface
Pipe outlet is connected at the top of self-circulating water feeder.
Above-mentioned liquid meter mixing arrangement is primarily to convenient for configuration drag reduction agent solution；It is dense when needing to change drag reducer
When spending, metering valve can be closed, and used drag reducer passes through band plug drainage hole by before, has drained into wastewater disposal basin.So
It opens valve again afterwards and changes the concentration of drag reducer according to demand, then tested.In addition, scale built in metering water tank, convenient for degree
Number.
Preferably, being equipped with open wastewater disposal basin below the self-circulating water feeder；Self-circulating water feeder bottom is additionally provided with
One band plug drainage hole, and be located above wastewater disposal basin with plug drainage hole.
Preferably, the supply lines of the pulsating pump is connected with variable-frequency governor.
Preferably, the quantity of the pressure tap is 2, it is located at side wall and the outlet one of experimental channel inlet end
The side wall at end.
Preferably, the Instrument for Pressure is digital display Instrument for Pressure；The flow instrument is flow of digit display instrument.
Preferably, the blender is mechanical vane blender.
The advantages of the utility model:
1) the utility model can be qualitative and quantitatively probes into not of the same race and various dose drag reducer to on-way resistance
It influences；
2) the utility model devises the current stabilization water tank of multiple pressure stabilizing, and water body pressure oscillation can be effectively reduced, and improves real
Test precision.
3) it is also provided with variable-frequency governor in experiment instrument, can directly adjust the power of pulsating pump, makes experiment is more stable can
Control.
4) vacuum gas-liquid mixer and liquid stirrer can uniformly mix drag reducer and water body, make to test more accurate.
5) scale built in water tank, convenient reading liquid volume are measured.
6) self-loopa water system is used, recycling experiment water body economizes on resources.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid meter mixing arrangement；
Fig. 2 is the structural schematic diagram of drag reduction measuring device；
Fig. 3 is the structural schematic diagram of vacuum gas-liquid mixer.
Specific embodiment
It is illustrated in figure 2 one preferred embodiment of the utility model.It includes liquid meter mixing arrangement and drag reduction measurement dress
It sets.
The liquid meter mixing arrangement includes open metering water tank 10 and vacuum gas-liquid mixer 5.Measure water tank 10
Interior to be equipped with blender 9, blender 9 is mechanical vane blender.The metering water tank 10 is connected with 1 entrance of high-pressure hydraulic pump.Institute
It states and is equipped with vacuum chamber 5-1 in vacuum gas-liquid mixer 5.The top the vacuum chamber 5-1 is connected with vacuum meter 5-2.The vacuum chamber 5-1
Inside also set up nozzle 5-4 and diffuser 5-3.The diffuser 5-3 is located on the extended line of nozzle 5-4.Moreover, nozzle 5-4
Sharp mouth outlet and the wide-mouth entrance of diffuser 5-3 are oppositely arranged, and its spacing is less than 10mm.The vacuum chamber 5-1 also with suction hose 7
It is connected, and the gap between suction hose 7 and connector the face nozzle 5-4 and diffuser 5-3 of vacuum chamber 5-1.High-pressure hydraulic pump 1 goes out
Mouth is connected by water inlet pipe 2 with the nozzle 5-4 in vacuum gas-liquid mixer 5.The entrance of the nozzle 5-4 by water inlet pipe 2 with
The outlet of high-pressure hydraulic pump 1 is connected.The suction hose 7 is equipped with metering valve 6, and 7 water inlet of suction hose is placed in measurer 4.Institute
Measurer 4 is stated equipped with drag reducer.The measurer 4 is placed on the weighing platform of electronic scale 3.The outlet of the diffuser 5-3 is connected with out
The water outlet of water pipe 8, outlet pipe 8 is located in the metering water tank 10.
The metering water tank 10 is also supplied by the self-loopa that the pipeline 12 with valve 11 and drag reduction measuring device are crossed in bottom
Hydrophone 13 is connected.Pulsating pump 14 is equipped in self-circulating water feeder 13.The supply lines of pulsating pump 14 and 15 phase of variable-frequency governor
Even.Open wastewater disposal basin 32 is equipped with below the self-circulating water feeder 13.13 bottom of self-circulating water feeder is additionally provided with a band plug
Drainage hole 33, and it is located at 32 top of wastewater disposal basin with plug drainage hole 33.The drag reduction measuring device further includes being placed on experimental bench 31
Current stabilization water tank 17, the 17 bottom surface level height of current stabilization water tank be higher than self-circulating water feeder 13 top surface.The current stabilization water tank
Vertical overflow plate 19 disposed in parallel and water-stabilizing board 20 are equipped in 17, and water-stabilizing board 20 is higher than overflow plate 19.Overflow plate 19 and steady
Water plate 20 is closely connect with the side wall of current stabilization water tank 17 and bottom surface, and current stabilization water tank 17 is divided for overflow area, areas of permanent pressure and steady water
Area, three, area.Wherein overflow plate 19 is between overflow area and steady pool, and water-stabilizing board 20 is between steady pool and areas of permanent pressure.Institute
20 side of water-stabilizing board is stated to being provided with steady water hole to be connected to steady pool and areas of permanent pressure.At the top of the current stabilization water tank 17 by upper hose 16 with
The outlet of pulsating pump 14 is connected, and upper hose 16 is located at steady pool described in the water outlet face at 17 top of current stabilization water tank.It is described to overflow
The bottom Liu Qu is connected with 18 upper end of overflow pipe.18 lower end of overflow pipe is connected in the top of self-circulating water feeder 13.Areas of permanent pressure
Lower sidewalls are equipped with the steady mouth of a river 21.The steady mouth of a river 21 connects 23 import of horizontal experimental channel being placed on experiment table top.
The quantity that experimental channel 23 is equipped with pressure tap 24 is 2, is located at the side wall of 23 inlet end of experimental channel
And the side wall of exit end.Pressure tap 24 is connect with Instrument for Pressure 22.23 exit end of experimental channel is additionally provided with flow measurement point 26, institute
Flow measurement point 26 is stated to connect with flow instrument 25.Stating Instrument for Pressure 22 is digital display Instrument for Pressure.The flow instrument 25 is flow of digit display instrument.Experiment
The outlet of pipeline 23 is connected by flow control valve 27 with the import of water exit elbow 28.Water exit elbow 28 exports downwards, and is discharged curved
First 28 outlet lower section is equipped with open water recovery apparatus 29.Water recovery apparatus 29 is placed in 31 side of experimental bench, and 29 bottom surface of water recovery apparatus
Level height be higher than the top of self-circulating water feeder 13.30 entrance of return pipe is connected on 29 bottom surface of water recovery apparatus, return pipe 30 goes out
Mouth is connected in 13 top of self-circulating water feeder.
Above-mentioned liquid meter mixing arrangement is primarily to convenient for configuration drag reduction agent solution.It is dense when needing to change drag reducer
When spending, metering valve 6 can be closed, and used drag reducer passes through band plug drainage hole 33 by before, has drained into wastewater disposal basin 32
In.Then valve 11 is opened again and changes the concentration of drag reducer according to demand, then is tested.In addition, scale built in metering water tank,
Convenient for reading.
The application method of the utility model are as follows:
First by the way that the concentration of the drag reduction of being configured solution is calculated, the drag reducer of primary quantity, In are put into measurer 4
Quantitative water is put into metering water tank 10.Then high-pressure hydraulic pump 1 is opened, water body is by high-pressure hydraulic pump 1 into crossing water inlet pipe 2 to vacuum
Air and liquid mixer 5.The vacuum generated using high-speed liquid is sucked drag reducer from suction hose 7 and is tentatively mixed, and mixed solution is logical
Outlet pipe 8 is crossed to metering water tank 10.At this point, opening blender 9.It needs to recycle during mixing repeatedly, until drag reducer suction amount
Reach calculated value, is then shut off metering valve 6.Finally stir to solution it is uniform after turn off high-pressure hydraulic pump 1.
Later, valve 11 is opened, drag reduction solution passes through pipeline 12 to self-circulating water feeder 13.It is closed completely into after after solution
Valve closing door 11.Then power on and open pulsating pump 14, adjust variable-frequency governor 15 to change flow velocity.Water body passes through upper hose 16
Into current stabilization water tank 17.Water body is entering experimental channel 23 after multistable, finally by experimental channel 23, water recovery apparatus
29 and return pipe 30 return self-circulating water feeder 13.Differential manometer 22 and 25 related data of flow instrument are recorded during this period, and are passed through
Correlation data calculation head loss.
Experimental principle are as follows:
The round tube stationary flow constant for diameter, Darcy formula provide
In formula:
λ-is frictional head loss factor；
Length of pipe section between l-measurement point；
D-is pipe diameter；
V-is mean velocity in section.
Experiment can measure frictional head loss hfWith average cross-sectional flow v, frictional head loss factor λ can be directly obtained
K=π2gd5/8l
There is Bernoulli equation that can obtain
Frictional head loss hfAs manometer is read.
Claims (6)
1. a kind of along journey drag reduction experiment instrument, which is characterized in that it includes liquid meter mixing arrangement and drag reduction measuring device；
The liquid meter mixing arrangement includes open metering water tank (10) and vacuum gas-liquid mixer (5)；Measure water tank
(10) blender (9) are equipped in；The metering water tank (10) is connected with high-pressure hydraulic pump (1) entrance；The vacuum gas-liquid mixing
Vacuum chamber (5-1) is equipped in device (5)；Vacuum chamber (5-1) top is connected with vacuum meter (5-2)；In the vacuum chamber (5-1) also
Nozzle (5-4) and diffuser (5-3) is set；The diffuser (5-3) is located on the extended line of nozzle (5-4)；Moreover, nozzle
The sharp mouth outlet of (5-4) and the wide-mouth entrance of diffuser (5-3) are oppositely arranged, and its spacing is less than 10mm；The vacuum chamber (5-1)
Also it is connected with suction hose (7), and the connector face nozzle (5-4) and diffuser (5-3) of suction hose (7) and vacuum chamber (5-1)
Between gap；High-pressure hydraulic pump (1) outlet is connected by water inlet pipe (2) with the nozzle (5-4) in vacuum gas-liquid mixer (5)；
The entrance of the nozzle (5-4) is connected by water inlet pipe (2) with the outlet of high-pressure hydraulic pump (1)；The suction hose (7) is equipped with meter
It measures valve (6), and suction hose (7) water inlet is placed in measurer (4)；The measurer (4) is placed in the weighing platform of electronic scale (3)
On；The outlet of the diffuser (5-3) is connected with outlet pipe (8), and the water outlet of outlet pipe (8) is located at the metering water tank (10)
It is interior；
Metering water tank (10) also crosses the self-loopa of pipeline (12) and drag reduction measuring device with valve (11) by bottom
Water-feed (13) is connected；Pulsating pump (14) are equipped in self-circulating water feeder (13)；The drag reduction measuring device further includes setting
In the current stabilization water tank (17) on experimental bench (31), current stabilization water tank (17) the bottom surface level height is higher than self-circulating water feeder (13)
Top surface；Vertical overflow plate (19) disposed in parallel and water-stabilizing board (20), and water-stabilizing board are equipped in the current stabilization water tank (17)
(20) it is higher than overflow plate (19)；Overflow plate (19) and water-stabilizing board (20) closely connect with the side wall of current stabilization water tank (17) and bottom surface,
And current stabilization water tank (17) is divided into overflow area, areas of permanent pressure and three, steady pool area；Wherein overflow plate (19) is located at overflow area and steady
Between pool, water-stabilizing board (20) is between steady pool and areas of permanent pressure；The water-stabilizing board (20) is provided with steady water hole laterally to be connected to
Steady pool and areas of permanent pressure；It is connected by upper hose (16) with the outlet of pulsating pump (14) at the top of the current stabilization water tank (17), and on
Water pipe (16) is located at steady pool described in the water outlet face at the top of current stabilization water tank (17)；The overflow area bottom and overflow pipe (18)
Upper end is connected；Overflow pipe (18) lower end is connected in the top of self-circulating water feeder (13)；The lower sidewalls of areas of permanent pressure are equipped with
The steady mouth of a river (21)；The steady mouth of a river (21) connection is placed in horizontal experimental channel (23) import on experiment table top；On experimental channel (23)
Equipped with several pressure taps (24)；Pressure tap (24) is connect with Instrument for Pressure (22)；Experimental channel (23) exit end is additionally provided with survey
Flow point (26), the flow measurement point (26) connect with flow instrument (25)；Experimental channel (23) outlet by flow control valve (27) with
The import of water exit elbow (28) is connected；Water exit elbow (28) exports downwards, and water exit elbow (28) outlet lower section is equipped with opening
Water recovery apparatus (29)；Water recovery apparatus (29) is placed in experimental bench (31) side, and the level height of water recovery apparatus (29) bottom surface is higher than
At the top of self-circulating water feeder (13)；Return pipe (30) entrance is connected on water recovery apparatus (29) bottom surface, return pipe (30) outlet is connected in
At the top of self-circulating water feeder (13).
2. as described in claim 1 along journey drag reduction experiment instrument, which is characterized in that be equipped with below the self-circulating water feeder (13) spacious
The wastewater disposal basin (32) of mouth；Self-circulating water feeder (13) bottom is additionally provided with band plug drainage hole (33), and with plug drainage hole (33)
Above wastewater disposal basin (32).
3. as described in claim 1 along journey drag reduction experiment instrument, which is characterized in that the supply lines of the pulsating pump (14) and frequency conversion
Governor (15) is connected.
4. as described in claim 1 along journey drag reduction experiment instrument, which is characterized in that the quantity of the pressure tap (24) is 2, point
It Wei Yu not the side wall of experimental channel (23) inlet end and the side wall of exit end.
5. as described in claim 1 along journey drag reduction experiment instrument, which is characterized in that the Instrument for Pressure (22) is digital display Instrument for Pressure；
The flow instrument (25) is flow of digit display instrument.
6. as described in claim 1 along journey drag reduction experiment instrument, which is characterized in that the blender (9) is mechanical vane blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920057489.4U CN209729213U (en) | 2019-01-14 | 2019-01-14 | Along journey drag reduction experiment instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920057489.4U CN209729213U (en) | 2019-01-14 | 2019-01-14 | Along journey drag reduction experiment instrument |
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| Publication Number | Publication Date |
|---|---|
| CN209729213U true CN209729213U (en) | 2019-12-03 |
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ID=68679705
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| CN201920057489.4U Active CN209729213U (en) | 2019-01-14 | 2019-01-14 | Along journey drag reduction experiment instrument |
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| CN (1) | CN209729213U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729530A (en) * | 2020-05-25 | 2020-10-02 | 西北工业大学 | Hydraulic self-driven resistance-reducing mucus dilution and release device |
| CN112796374A (en) * | 2020-12-18 | 2021-05-14 | 上海理工大学 | Flow stabilizing equipment for providing outflow from undisturbed source |
| CN113865825A (en) * | 2021-09-26 | 2021-12-31 | 西南石油大学 | Multifunctional product oil turbulent flow resistance-reducing flow PIV loop experiment device and method |
-
2019
- 2019-01-14 CN CN201920057489.4U patent/CN209729213U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729530A (en) * | 2020-05-25 | 2020-10-02 | 西北工业大学 | Hydraulic self-driven resistance-reducing mucus dilution and release device |
| CN112796374A (en) * | 2020-12-18 | 2021-05-14 | 上海理工大学 | Flow stabilizing equipment for providing outflow from undisturbed source |
| CN113865825A (en) * | 2021-09-26 | 2021-12-31 | 西南石油大学 | Multifunctional product oil turbulent flow resistance-reducing flow PIV loop experiment device and method |
| CN113865825B (en) * | 2021-09-26 | 2024-02-06 | 西南石油大学 | Multifunctional finished oil turbulence drag reduction flowing PIV loop experimental device |
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