CN205645045U - Hydrodynamics combined test device - Google Patents

Hydrodynamics combined test device Download PDF

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Publication number
CN205645045U
CN205645045U CN201620142548.4U CN201620142548U CN205645045U CN 205645045 U CN205645045 U CN 205645045U CN 201620142548 U CN201620142548 U CN 201620142548U CN 205645045 U CN205645045 U CN 205645045U
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CN
China
Prior art keywords
pressure
pressure tap
tilting
tap
pipeline
Prior art date
Application number
CN201620142548.4U
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Chinese (zh)
Inventor
孟晋
叶志成
陈思宇
巫恋恋
刘正洋
宋向磊
Original Assignee
沈阳工业大学
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Priority to CN201620142548.4U priority Critical patent/CN205645045U/en
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Publication of CN205645045U publication Critical patent/CN205645045U/en

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Abstract

The utility model relates to a hydrodynamics combined test device, including experiment mesa, supply tank, constant pressure water tank, measurement water tank and the tilting pressure measurement nest of tubes, supply tank and measurement water tank set up respectively below experiment mesa both ends, and water pump in the supply tank is through supplying the water piping connection constant pressure water tank, four the experiment tube couplings measurement water tanks of constant pressure water tank through pressing close to to test mesa and level and setting up, and the measurement water tank pass through back the water piping connection supply tank, and the tilting pressure measurement nest of tubes passes through the silicone tube and tests the tube coupling. The utility model has the advantages of simple structure, the operation is convenient, and accuracy nature is high, be suitable for and use on the hydrodynamics precision measurement.

Description

Hydrodynamics combined test apparatus
Technical field
This utility model belongs to assay device field, relates generally to a kind of assay device, is specifically related to a kind of hydrodynamics combined test apparatus.
Background technology
Hydrodynamic Generalized Test-Stand is the basic experiment device of Exersices of Hydrodynamics Course.Some basic hydrodynamic calculations can be completed, such as reynolds experiment, on-way resistance experiment, local resistance experiment, energy equation (Bernoulli equation) experiment, Venturi meter and the determination experiment of orifice flowmeter factor and Pitot tube velocity measurement and the experiment of flow in this laboratory table.Its principle is to measure the piezometric head of different location in pipeline with pressure-measuring pipe, by the pressure reduction between each point calculate pipeline along journey and local resistance, checking energy equation and combine equation of continuity and calculate flow velocity and the flow of current in pipeline.Pitot tube measures piezometric head and the pressure head of pipeline simultaneously, calculates kinetic head by differential manometer, thus calculates flow velocity and flow.
Summary of the invention
Goal of the invention
This utility model provides a kind of hydrodynamics combined test apparatus, its purpose is to solve the problem that conventional fluid mechanics experimental provision defect is bigger, designs a simple in construction, and operation is convenient, the higher Novel fluid mechanics comprehensive experiment device of accuracy.
Technical scheme
A kind of hydrodynamics combined test apparatus, it is characterised in that: include testing table top, supply tank, constant pressure water tank, metering water tank and tilting pressure-measuring pipe group;Supply tank and metering water tank are separately positioned on below experiment table top two ends, water pump in supply tank connects constant pressure water tank by feed pipe, constant pressure water tank passes through to press close to experiment table top and horizontally disposed four experiment pipelines connect metering water tank, metering water tank connects supply tank by return pipe, and tilting pressure-measuring pipe group is connected with experiment pipeline by silica gel tube.
Constant pressure water tank is provided with two outlets, the first outlet and the second outlet;First outlet connecting pipeline, the second outlet is respectively communicated with pipeline I, pipeline II and pipeline IV, and pipeline I, pipeline II are in parallel with pipeline IV.
Pipeline I includes the first reducing and the second reducing, first reducing is sudden contraction, second reducing is sudden expansion, first reducing front is provided with the 5th pressure tap, and the first reducing rear is provided with the 6th pressure tap, and the second reducing front is provided with the 7th pressure tap, second reducing rear is provided with the 8th pressure tap, it is provided with the 6th gate valve before 5th pressure tap, after the 8th pressure tap, is provided with the 9th gate valve and the 9th pressure tap, after the 9th pressure tap is located at the 9th gate valve;The 7th gate valve, Venturi meter, orifice flowmeter, Pitot tube and the tenth gate valve it is disposed with on pipeline II, Venturi meter is provided with two pressure tap the tenth pressure taps and the 11st pressure tap, orifice flowmeter is provided with two pressure tap the 12nd pressure taps and the 13rd pressure tap, and Pitot tube is provided with two pressure tap the 14th pressure taps and the tenth without pressure tap;Pipeline III be respectively arranged at two ends with the 8th gate valve and the 4th gate valve, pipeline III is sequentially provided with four pressure tap the first pressure taps, the second pressure tap, the 3rd pressure tap and the 4th pressure tap;The end of pipeline IV is provided with the 3rd gate valve, and in pipeline IV, the position near the second outlet is provided with Reynolds chaining pin.
Article four, each pressure tap on pipeline is connected with 15 slanted glass pipes of tilting pressure-measuring pipe group by silica gel tube respectively;1. the 5th pressure tap on pipeline I is connected with tilting pressure-measuring pipe, 2. 6th pressure tap is connected with tilting pressure-measuring pipe, 3. 7th pressure tap is connected with tilting pressure-measuring pipe, and 4. the 8th pressure tap is connected with tilting pressure-measuring pipe, and 5. the 9th pressure tap is connected with tilting pressure-measuring pipe;6. the tenth pressure tap on pipeline II is connected with tilting pressure-measuring pipe, 7. 11st pressure tap is connected with tilting pressure-measuring pipe, 8. 12nd pressure tap is connected with tilting pressure-measuring pipe, 9. 13rd pressure tap is connected with tilting pressure-measuring pipe, 10. 14th pressure tap is connected with tilting pressure-measuring pipe, and the 15th pressure tap is connected with tilting pressure-measuring pipe;The first pressure tap on pipeline III is connected with tilting pressure-measuring pipe, and the second pressure tap is connected with tilting pressure-measuring pipe, and the 3rd pressure tap is connected with tilting pressure-measuring pipe, and the 4th pressure tap is connected with tilting pressure-measuring pipe.
Tilting pressure-measuring pipe group is fixed on the support being perpendicular to test table top, is arranged on the back edge side of experiment table top.
Overflow pipe bottom constant pressure water tank stretches in supply tank.
Constant pressure water tank is provided with ink cartridge, and ink cartridge is by the Reynolds chaining pin on silica gel tube connecting line IV, and silica gel tube is provided with the second gate valve.
Metering water tank is provided with water-level gauge.
Return pipe is provided with the 5th gate valve near one end of metering water tank.
Advantage and effect
This utility model this hydrodynamics combined test apparatus, has the advantage that and beneficial effect:
(1) local resistance pipe is improved and makes itself and on-way resistance pipe merge into a pipe, two experiments can be carried out on a pipe simultaneously, can save space and will not impact, each experiment owing to current are identical again, experimental error is relatively reduced, makes the accuracy of device be improved.
(2) in line with making the more accurate purpose of measurement device data in terms of pressure measxurement, we change traditional vertical pressure-measuring pipe into tilting pressure-measuring pipe, readability and the certainty of measurement of experimental data is improved, it is simple to induction and conclusion goes out experiment law by amplifying the distance of twice experiment reading point.
(3) measure water tank bottom and to add a linker, replace liquid level in water tank with liquid level in linker, reduce the liquid fluctuating impact on digital independent, make experimental measurements the most accurate.
(4) several pipes in parallel on original vertical change into the horizontal parallel pipeline of experiment table top, is provided pressure by constant voltage case is unified, simplify experimental provision.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is more than experiment table top each device top view.
Fig. 3 is tilting pressure-measuring pipe principle demonstration figure.
Fig. 4 is U-tube water-level gauge schematic diagram.
Description of reference numerals:
null1-laboratory table,2-water pump,3-supply tank,4-overflow pipe,5-the first gate valve,6-feed pipe,7-constant pressure water tank,8-ink cartridge,9-the second gate valve,10-Reynolds chaining pin,11-the first pressure tap,12-the second pressure tap,13-the 3rd pressure tap,14-the 4th pressure tap,15-the 3rd gate valve,16-the 4th gate valve,17-measures water tank,18-water-level gauge,19-the 5th gate valve,20-return pipe,21-the first outlet,22-the second outlet,23-the 6th gate valve,24-the 7th gate valve,25-the 8th gate valve,26-the 5th pressure tap,27-the 6th pressure tap,28-the 7th pressure tap,29-the 8th pressure tap,30-the 9th pressure tap,31-the first reducing,32-the second reducing,33-the 9th gate valve,34-Venturi meter,35-orifice flowmeter,36-Pitot tube,37-the tenth pressure tap,38-the 11st pressure tap,39-the 12nd pressure tap,40-the 13rd pressure tap,41-the 14th pressure tap,42-the 15th pressure tap,43-the tenth gate valve.
Detailed description of the invention
This utility model relates to a kind of hydrodynamics combined test apparatus, as shown in Fig. 1-Fig. 4, including experiment table top 1, supply tank 3, constant pressure water tank 7, metering water tank 17 and tilting pressure-measuring pipe group;Supply tank 3 and metering water tank 17 are separately positioned on below experiment table top 1 two ends, water pump 2 in supply tank 3 connects constant pressure water tank 7 by feed pipe 6, constant pressure water tank 7 passes through to press close to experiment table top 1 and horizontally disposed four experiment pipelines connect metering water tank 17, metering water tank 17 connects supply tank 3 by return pipe 20, and tilting pressure-measuring pipe group is connected with experiment pipeline by silica gel tube.
As in figure 2 it is shown, constant pressure water tank 7 is provided with two outlets, the first outlet 21 and the second outlet 22;First outlet 21 connecting pipeline III, the second outlet 22 is respectively communicated with pipeline I, pipeline II and pipeline IV, and pipeline I, pipeline II are in parallel with pipeline IV.
Pipeline I includes the first reducing 31 and the second reducing 32, first reducing 31 is sudden contraction, second reducing 32 is sudden expansion, first reducing 31 front is provided with the 5th pressure tap 26, and the first reducing 31 rear is provided with the 6th pressure tap 27, and the second reducing 32 front is provided with the 7th pressure tap 28, second reducing 32 rear is provided with the 8th pressure tap 29, it is provided with the 6th gate valve 23 before 5th pressure tap 26, is provided with the 9th gate valve 33 and the 9th pressure tap 30 after the 8th pressure tap 29, after the 9th pressure tap 30 is located at the 9th gate valve 33;The 7th gate valve 24, Venturi meter 34, orifice flowmeter 35, Pitot tube 36 and the tenth gate valve 43 it is disposed with on pipeline II, Venturi meter 34 is provided with two pressure tap the tenth pressure tap the 37 and the 11st pressure taps 38, orifice flowmeter 35 is provided with two pressure tap the 12nd pressure tap the 39 and the 13rd pressure taps 40, and Pitot tube 36 is provided with two pressure tap the 14th pressure taps 41 and the tenth without pressure tap 42;Pipeline III be respectively arranged at two ends with the 8th gate valve 25 and the 4th gate valve 16, pipeline III is sequentially provided with four pressure tap the first pressure taps the 11, second pressure tap the 12, the 3rd pressure tap 13 and the 4th pressure taps 14;The end of pipeline IV is provided with the 3rd gate valve 15, and in pipeline IV, the position near the second outlet 22 is provided with Reynolds chaining pin 10.
As it is shown on figure 3, each pressure tap on four pipelines is connected with 15 slanted glass pipes of tilting pressure-measuring pipe group by silica gel tube respectively;1. the 5th pressure tap 26 on pipeline I is connected with tilting pressure-measuring pipe, 2. 6th pressure tap 27 is connected with tilting pressure-measuring pipe, 3. 7th pressure tap 28 is connected with tilting pressure-measuring pipe, and 4. the 8th pressure tap 29 is connected with tilting pressure-measuring pipe, and 5. the 9th pressure tap 30 is connected with tilting pressure-measuring pipe;6. the tenth pressure tap 37 on pipeline II is connected with tilting pressure-measuring pipe, 7. 11st pressure tap 38 is connected with tilting pressure-measuring pipe, 8. 12nd pressure tap 39 is connected with tilting pressure-measuring pipe, 9. 13rd pressure tap 40 is connected with tilting pressure-measuring pipe, 10. 14th pressure tap 41 is connected with tilting pressure-measuring pipe, and the 15th pressure tap 42 is connected with tilting pressure-measuring pipe;The first pressure tap 11 on pipeline III is connected with tilting pressure-measuring pipe, and the second pressure tap 12 is connected with tilting pressure-measuring pipe, and the 3rd pressure tap 13 is connected with tilting pressure-measuring pipe, and the 4th pressure tap 14 is connected with tilting pressure-measuring pipe.
Tilting pressure-measuring pipe group is fixed on the support being perpendicular to test table top, is arranged on the back edge side of experiment table top.
Overflow pipe 4 bottom constant pressure water tank 7 stretches in supply tank 3.
Constant pressure water tank 7 is provided with ink cartridge 8, and ink cartridge 8 is by the Reynolds chaining pin 10 on silica gel tube connecting line IV, and silica gel tube is provided with the second gate valve 9.
Metering water tank 17 is provided with water-level gauge 18.
Return pipe 20 is provided with the 5th gate valve 19 near one end of metering water tank 17.
This experiment mainly have employed one tube multipurpose, and the design concept of inclined tube accurate measurement and change pipeline connect thus reach to simplify experimental provision, are greatly enhanced device accuracy.
The measurement of device pressure uses tilting pressure-measuring pipe, by measurement by magnification distance thus improve reading and certainty of measurement.Being illustrated in figure 3 tilting pressure-measuring pipe, every pipeline of tilting pressure-measuring pipe is all connected with the pressure tap on experiment pipeline by silica gel tube, completes pressure measurement.
Operation principle of the present utility model is as follows:
Water pump absorbs water from supply tank and supplies constant pressure water tank, starts experiment after constant pressure water tank stable level.As can be seen from Figure 2 pipe I (along journey, locally, valve resistance) in parallel with pipe II (venturi, orifice plate, Pitot tube) and pipe IV (Reynolds), form a Hydraulic Power System;The experiment done due to pipe IV is Bernoulli equation experiment, needs to have in pipeline section potential difference, it is impossible to connect together with other pipes, so pipe IV is individually fetched water from constant pressure water tank, completes experiment.Supply tank and metering water tank are below experiment table top, and other each experimental provision is on experiment table top.
Work process of the present utility model is as follows:
First water flowing aerofluxus, starts water pump.Experiment is started after water in constant pressure water tank is filled to Metacentre Height.The experiment measuring on-way resistance and local resistance can be carried out on a pipe simultaneously.Digital independent in experimentation: read pressure head from tilting pressure-measuring pipe, observe the change of header tank liquid level on linker and record the corresponding used time.Owing to the pressure source of each pipeline both is from constant pressure water tank, water route is easy to adjust to be changed and does the conversion that other group experiment has only to same valve and just can complete.

Claims (9)

1. a hydrodynamics combined test apparatus, it is characterised in that: include testing table top (1), supply tank (3), constant pressure water tank (7), metering water tank (17) and tilting pressure-measuring pipe group;Supply tank (3) and metering water tank (17) are separately positioned on below experiment table top (1) two ends, water pump (2) in supply tank (3) connects constant pressure water tank (7) by feed pipe (6), constant pressure water tank (7) passes through to press close to experiment table top (1) and horizontally disposed four experiment pipelines connect metering water tank (17), metering water tank (17) connects supply tank (3) by return pipe (20), and tilting pressure-measuring pipe group is connected with experiment pipeline by silica gel tube.
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: constant pressure water tank (7) is provided with two outlets, the first outlet (21) and the second outlet (22);First outlet (21) connecting pipeline III, the second outlet (22) is respectively communicated with pipeline I, pipeline II and pipeline IV, and pipeline I, pipeline II are in parallel with pipeline IV.
Hydrodynamics combined test apparatus the most according to claim 2, it is characterized in that: pipeline I includes the first reducing (31) and the second reducing (32), first reducing (31) is sudden contraction, second reducing (32) is sudden expansion, first reducing (31) front is provided with the 5th pressure tap (26), first reducing (31) rear is provided with the 6th pressure tap (27), second reducing (32) front is provided with the 7th pressure tap (28), second reducing (32) rear is provided with the 8th pressure tap (29), 5th pressure tap (26) is front is provided with the 6th gate valve (23), it is provided with the 9th gate valve (33) and the 9th pressure tap (30) after 8th pressure tap (29), after 9th pressure tap (30) is located at the 9th gate valve (33);The 7th gate valve (24), Venturi meter (34), orifice flowmeter (35), Pitot tube (36) and the tenth gate valve (43) it is disposed with on pipeline II, Venturi meter (34) is provided with two pressure taps the tenth pressure tap (37) and the 11st pressure tap (38), orifice flowmeter (35) is provided with two pressure taps the 12nd pressure tap (39) and the 13rd pressure tap (40), and Pitot tube (36) is provided with two pressure taps the 14th pressure tap (41) and the tenth without pressure tap (42);Pipeline III be respectively arranged at two ends with the 8th gate valve (25) and the 4th gate valve (16), pipeline III is sequentially provided with four pressure taps the first pressure tap (11), the second pressure tap (12), the 3rd pressure tap (13) and the 4th pressure tap (14);The end of pipeline IV is provided with the 3rd gate valve (15), and in pipeline IV, the position near the second outlet (22) is provided with Reynolds chaining pin (10).
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: each pressure tap on four pipelines is connected with 15 slanted glass pipes of tilting pressure-measuring pipe group by silica gel tube respectively;1. the 5th pressure tap (26) on pipeline I is connected with tilting pressure-measuring pipe, 6th pressure tap (27) is 2. connected with tilting pressure-measuring pipe, 7th pressure tap (28) is 3. connected with tilting pressure-measuring pipe, 8th pressure tap (29) is 4. connected with tilting pressure-measuring pipe, and the 9th pressure tap (30) is 5. connected with tilting pressure-measuring pipe;6. the tenth pressure tap (37) on pipeline II is connected with tilting pressure-measuring pipe, 11st pressure tap (38) is 7. connected with tilting pressure-measuring pipe, 12nd pressure tap (39) is 8. connected with tilting pressure-measuring pipe, 13rd pressure tap (40) is 9. connected with tilting pressure-measuring pipe, 14th pressure tap (41) is 10. connected with tilting pressure-measuring pipe, and the 15th pressure tap (42) is connected with tilting pressure-measuring pipe;The first pressure tap (11) on pipeline III is connected with tilting pressure-measuring pipe, and the second pressure tap (12) is connected with tilting pressure-measuring pipe, and the 3rd pressure tap (13) is connected with tilting pressure-measuring pipe, and the 4th pressure tap (14) is connected with tilting pressure-measuring pipe.
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: tilting pressure-measuring pipe group is fixed on the support being perpendicular to test table top, is arranged on the back edge side of experiment table top.
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: the overflow pipe (4) of constant pressure water tank (7) bottom stretches in supply tank (3).
7. according to the hydrodynamics combined test apparatus described in claim 1 or 3, it is characterized in that: constant pressure water tank (7) is provided with ink cartridge (8), ink cartridge (8) is by the Reynolds chaining pin (10) on silica gel tube connecting line (IV), and silica gel tube is provided with the second gate valve (9).
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: metering water tank (17) is provided with water-level gauge (18).
Hydrodynamics combined test apparatus the most according to claim 1, it is characterised in that: return pipe (20) is provided with the 5th gate valve (19) near one end of metering water tank (17).
CN201620142548.4U 2016-02-26 2016-02-26 Hydrodynamics combined test device CN205645045U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168837A (en) * 2016-12-07 2018-06-15 中国石油天然气股份有限公司 A kind of oil pumping rod centering device liquid flowing resistance test device and method
CN108898926A (en) * 2018-08-25 2018-11-27 东北石油大学 Assembly type on-way resistance test experimental bed based on CDIO theory
CN110570732A (en) * 2019-08-29 2019-12-13 河海大学 high accuracy hydraulics pipe flow laboratory bench

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168837A (en) * 2016-12-07 2018-06-15 中国石油天然气股份有限公司 A kind of oil pumping rod centering device liquid flowing resistance test device and method
CN108898926A (en) * 2018-08-25 2018-11-27 东北石油大学 Assembly type on-way resistance test experimental bed based on CDIO theory
CN110570732A (en) * 2019-08-29 2019-12-13 河海大学 high accuracy hydraulics pipe flow laboratory bench

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161012

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