CN104599567A - Multifunctional fluid mechanics experimental device - Google Patents
Multifunctional fluid mechanics experimental device Download PDFInfo
- Publication number
- CN104599567A CN104599567A CN201510053803.8A CN201510053803A CN104599567A CN 104599567 A CN104599567 A CN 104599567A CN 201510053803 A CN201510053803 A CN 201510053803A CN 104599567 A CN104599567 A CN 104599567A
- Authority
- CN
- China
- Prior art keywords
- pipe
- experiment
- valve
- fluid mechanics
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a multifunctional fluid mechanics experimental device. The multifunctional fluid mechanics experimental device comprises a water source, a reynolds experiment pipe, a Bernoulli experiment pipe, an on-way resistance pipe, a local resistance pipe, a valve local resistance measuring pipe, a pitot pipe, a Venturi meter, an orifice plate flowmeter, a piezometer pipe, a measuring groove, selection valves and adjusting valves; the reynolds experiment pipe, the Bernoulli experiment pipe, the on-way resistance pipe, the local resistance pipe, the valve local resistance measuring pipe, the Bernoulli experiment pipe, the venture meter and the orifice plate flowmeter form into six testing pipe sections in a parallel mode; the selection valves are installed at inlet sections of the experiment pipe sections; the inlet sections of the experiment pipe sections are connected with a water source through the selection valves; the adjusting valves are installed at outlet sections of the experiment pipes; the outlet sections of the experiment pipes are connected with the measuring groove through the adjusting valves. According to the multifunctional fluid mechanics experimental device, the separated experiment pipelines are integrated in one experiment device, frequent assembling and disassembling is avoided, leakage is reduced, the experiment pipelines are clear at a glance and not easy to mix, and user understanding of the experimental principle is facilitated.
Description
Technical field
The invention belongs to test apparatus field, particularly relate to a kind of Multifunctional fluid mechanics experimental installation.
Background technology
Existing Hydromechanics experimental device or experimental channel dispersion, a set of experimental provision can only carry out a kind of fluid mechanics principle test, after need dismantling test section when carrying out other tests, corresponding test section is installed again, because test section mostly is glassware, remove and install very inconvenience, easily causing leak Lou pressure or pipeline section damaged, whole Renewal process complex operation, to waste time and energy.Experimental channel is numerous, easily obscure, affect test effect, and student is to the understanding of each principle during student oneself disassembling, assembling and replacing.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of Multifunctional fluid mechanics experimental installation, the test section of each separation being concentrated in a set of experimental provision, avoid frequent dismounting, reduce seepage, each test pipeline is very clear, not easily obscure, be conducive to user and understand experimental principle.
For achieving the above object, the present invention is achieved by the following technical solutions.
A kind of Multifunctional fluid mechanics experimental installation, comprises water source, reynolds experiment pipe, Bernoulli experiment pipe, on-way resistance pipe, shock resistance pipe, valve shock resistance mensuration pipe, Pitot tube, Venturi meter, orifice flowmeter, piezometric tube, measuring tank, selection valve and control valve; Reynolds experiment pipe, Bernoulli experiment pipe, on-way resistance pipe, shock resistance pipe, valve shock resistance measures pipe, and Pitot tube, Venturi meter, orifice flowmeter form six test sections side by side, and each test section inducer is provided with to be selected valve and passes through to select valve to be connected with water source, each test section outlet section is provided with control valve and is connected with measuring tank by control valve, and each test section is all connected with piezometric tube.During experiment, open water source, maintain steady flow duty, test section required for selection, open the selection valve of corresponding test section entrance point, close the selection valve of other test section entrance points, close corresponding control valve, the piezometric surface corresponding to corresponding test section measuring point raises.First open the control valve of test section endpiece, bubble in pipeline section is discharged with current, bubble drains rear closedown control valve, and piezometric surface rises, and after liquid level stabilizing, observes the height of piezometric surface.If liquid level flushes, then represent there is no bubble, can work on, if liquid level does not flush, then represent in piezometric tube to there is bubble.Now discharge bubble by ear washing bulb, ear washing bulb point mouth is aimed at piezometric tube top, extrude ear washing bulb gently, force liquid level in piezometric tube to decline by air-flow, then unclamp ear washing bulb gently, in piezometric tube, liquid level rises under the effect of intraductal pressure, and so forth, in piezometric tube bubble along with current motion gradually upwards, arrive liquid level place, gas is discharged.After in piezometric tube, bubble is all got rid of, piezometric surface keeps level, verifies isopressure surface principle with this; Then open corresponding control valve, regulate the flow by test section by control valve and survey note piezometric tube reading, simultaneously by measuring tank measuring flow; When carrying out the test of other pipeline sections, only need open the selection valve of corresponding test section entrance point, close the selection valve of all the other test section entrance points, can switching be completed, repeat above-mentioned measuring process, complete this working condition experimenting.Deng experiment all terminate after, emptying pipe, valve-off.
Described water source can do water source by direct tap water, also can arrange separately a set of voltage stabilizing water source, recycle for experimental water.Described water source comprises reserve tank, water pump, Experimental Water Tank; Unit fixed on water pump suction end is connected with reserve tank, and pump outlet is connected with Experimental Water Tank by upper hose.Described Experimental Water Tank comprises inlet opening, spout hole, overflow weir and triangular-notch weir; Test water tank is divided into overflow area, inhalant region, exhalant region by described overflow weir, triangular-notch weir successively; Inlet opening, spout hole are all positioned at test water tank bottom, and inlet opening is positioned at inhalant region, spout hole is positioned at overflow area, and described inlet opening is connected with upper hose by water supply valve door, and described spout hole is connected with run-down pipe, and the run-down pipe other end leads to reserve tank; The perforate of exhalant region bottom is connected with each test section by selecting valve.Vertical in the middle part of described exhalant region have one piece of orifice plate that exhalant region is divided into metastable zone and steady-state zone.Bottom described metastable zone and steady-state zone, be respectively provided with an osculum, described osculum is connected with drainpipe by water discharging valve, and the drainpipe other end leads to reserve tank.Be provided with downcomer bottom described measuring tank, the downcomer other end leads to reserve tank, and downcomer is provided with drainage valve.All experimental waters provide by reserve tank, and water outlet all gets back to reserve tank, reach water saving object, ensure the continuity of experiment; Water enter test water tank after first through triangular-notch weir, passing hole plate current goes out again, the interference avoiding ascending current to cause causes piezometric surface to fluctuate, current rise to after certain altitude through overflow area overflow, maintain liquid level constant, another test water tank is provided with blow-down pipe, is beneficial to maintaining and the cleaning of test water tank.
Further also be provided with instruction liquid bath, indicator solution trench bottom is provided with switch, and switch is connected by the inducer of tubule with each test section.Open switch during test, indicator solution enters test section, is convenient to observe and measure.
Further a whole set of test unit is installed on testing table, described testing table is stainless steel structure, bottom is equipped with universal wheel, convenient mobile.
Beneficial effect: compared with prior art, the invention has the advantages that: be easy to assembling and move, reynolds experiment pipe, Bernoulli experiment pipe, on-way resistance pipe, shock resistance pipe, valve shock resistance are measured each test pipe be separated such as pipe, Pitot tube, Venturi meter, orifice flowmeter and concentrate in a set of experimental provision, avoid high-frequency dismounting, reduce seepage, the serviceable life of pipeline can be extended simultaneously.This device fluid-water used is that recycle to extinction uses, safe and reliable.All test pipes are all supplied water by water tank, can verify isopressure surface principle when experiment starts, and directly can utilize the bubble in ear washing bulb eliminating piezometric tube, simple and practical.This experimental provision is measured precisely, utilizes this experimental provision can carry out reynolds experiment, pipe resistance (on-way resistance and shock resistance) experiment, the mensuration of energy equation confirmatory experiment, orifice flowmeter coefficient of flow and Venturi-meter coefficient and the experiment such as Pitot tube velocity measurement and flow.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention;
Fig. 2 vertical view of the present invention.
In figure, 1. reserve tank 11. water pump 12. upper hose 13. water supply valve doors 2. test water tank 21. inlet opening
22. spout hole 23. run-down pipe 241. triangular-notch weir 242. overflow weirs
25. orifice plate 26. metastable zone
27. steady-state zone 281,282. osculum 291,292. drainpipe 293,294. water discharging valves
31. reynolds experiment pipe 32. Bernoulli experiment pipe 33. on-way resistance pipe 34. shock resistance pipes
35. valve shock resistances measure pipe 36. Pitot tube, Venturi meter, orifice flowmeter developmental tube
4. piezometric tube 5. measuring tank 51. downcomer 52. drainage valve 61-66. selects valve
71-76. control valve 8. indicates liquid bath 81. switch 82. tubule 9. testing table 91. universal wheel
92. supports.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, testing table 9 entirety is stainless steel structure, lower dress universal wheel 91, convenient mobile.A reserve tank 1 is fixed in testing table 9 lower left, inside establishes water pump 11, by water pump 11, water is delivered to Experimental Water Tank through upper hose 12, regulates upper discharge by water supply valve door 13.Water enters first through triangular-notch weir 241 after test water tank 2, then flowed out by orifice plate 25, when current rise to certain altitude, current enter overflow area by overflow weir 242, and overflow water gets back to reserve tank 1 by run-down pipe 23.Respectively arrange a drainpipe 291,292 in metastable zone 26 and steady-state zone 27, drainpipe 291,292 leads to maintenance management and the cleaning that reserve tank 1 is convenient to Experimental Water Tank, all controls folding by water discharging valve 293,294.During experiment, by selecting valve 61-66 to select test section on probation, because test section is longer, below mounting bracket 92 in the middle part of test section.Test section flow regulates by control valve 71-76, and each measuring point hydraulic pressure shows at piezometric tube 4, and the flow passed through is calculated by measuring tank 5, and the water of discharge flows to reserve tank 1 by drainage valve 52 through downcomer 51.Indicator solution is contained in instruction liquid bath 8 li, controls with switch 81 the indicator solution flow being flowed to test section by tubule 82.
Test section arranges six roots of sensation experiment tube altogether, is respectively reynolds experiment pipe 31; Bernoulli experiment pipe 32; On-way resistance pipe 33; Shock resistance pipe 34; Valve shock resistance measures pipe 35; Pitot tube, Venturi meter, orifice flowmeter developmental tube 36.
Specific works mode: when experiment starts, open water pump 11, water enters Experimental Water Tank from reserve tank 1, flow of inlet water is regulated by water supply valve door 13, water flows into metastable zone 2726 again when orifice plate 25 flows into steady-state zone 27 and rises to certain altitude through triangular-notch weir 24, current enter overflow area by overflow weir 242, and overflow water flows back to reserve tank 1 through run-down pipe 23.After maintaining steady flow duty, carry out reynolds experiment, select valve 61 and close to select valve 62-66 by opening, close control valve 71, piezometric tube 4 liquid level corresponding to pipeline section measuring point raises, ear washing bulb is utilized to get rid of bubble and verify isopressure surface principle after stable, open control valve 71 and regulate reynolds experiment pipe 31 flow, piezometric tube 4 liquid level changes, and surveys note piezometric tube 4 reading after liquid level stabilizing, if liquid fluctuating, get hourly value, simultaneously by measuring tank 5 measuring flow.When carrying out the test of other pipeline sections, only need open the selection valve of corresponding test section entrance point, close the selection valve of all the other test section entrance points, can switching be completed, repeat above-mentioned measuring process, complete corresponding working condition experimenting.Deng experiment all terminate after, powered-down, emptying all pipelines, close all valves.
The present invention is illustrated according to above-described embodiment, should be appreciated that above-described embodiment does not limit the present invention in any form, and all employings are equal to replacement or the technical scheme that obtains of equivalent transformation mode, all drop within protection scope of the present invention.
Claims (8)
1. a Multifunctional fluid mechanics experimental installation, it is characterized in that, comprise water source, reynolds experiment pipe, Bernoulli experiment pipe, on-way resistance pipe, shock resistance pipe, valve shock resistance mensuration pipe, Pitot tube, Venturi meter, orifice flowmeter, piezometric tube, measuring tank, selection valve and control valve; Reynolds experiment pipe, Bernoulli experiment pipe, on-way resistance pipe, shock resistance pipe, valve shock resistance measures pipe, and Pitot tube, Venturi meter, orifice flowmeter form six test sections side by side, and each test section inducer is provided with to be selected valve and passes through to select valve to be connected with water source, each test section outlet section is provided with control valve and is connected with measuring tank by control valve, and each test section is all connected with piezometric tube.
2. a kind of Multifunctional fluid mechanics experimental installation according to claim 1, is characterized in that, described water source comprises reserve tank, water pump, Experimental Water Tank; Unit fixed on water pump suction end is connected with reserve tank, and pump outlet is connected with Experimental Water Tank by upper hose.
3. a kind of Multifunctional fluid mechanics experimental installation according to claim 2, is characterized in that, described Experimental Water Tank comprises inlet opening, spout hole, overflow weir, triangular-notch weir; Test water tank is divided into overflow area, inhalant region, exhalant region by described overflow weir, triangular-notch weir successively; Inlet opening, spout hole are all positioned at test water tank bottom, and inlet opening is positioned at inhalant region, spout hole is positioned at overflow area, and described inlet opening is connected with upper hose by water supply valve door, and described spout hole is connected with run-down pipe, and the run-down pipe other end leads to reserve tank; The perforate of exhalant region bottom is connected with each test section by selecting valve.
4. a kind of Multifunctional fluid mechanics experimental installation according to claim 3, is characterized in that, vertical in the middle part of described exhalant region have one piece of orifice plate that exhalant region is divided into metastable zone and steady-state zone.
5. a kind of Multifunctional fluid mechanics experimental installation according to claim 4, it is characterized in that, bottom described metastable zone and steady-state zone, be respectively provided with an osculum, described osculum is connected with drainpipe by water discharging valve, and the drainpipe other end leads to reserve tank.
6. a kind of Multifunctional fluid mechanics experimental installation according to claim 2, is characterized in that, is provided with downcomer bottom described measuring tank, and the downcomer other end leads to reserve tank, and downcomer is provided with drainage valve.
7. a kind of Multifunctional fluid mechanics experimental installation according to claim 1, is characterized in that, is also provided with instruction liquid bath, and indicator solution trench bottom is provided with switch, is connected by the entrance point of tubule with reynolds experiment pipe.
8. a kind of Multifunctional fluid mechanics experimental installation according to claim 1-7, is characterized in that, a whole set of test unit is installed on testing table, and described testing table is stainless steel structure, universal wheel is equipped with in bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053803.8A CN104599567A (en) | 2015-02-02 | 2015-02-02 | Multifunctional fluid mechanics experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053803.8A CN104599567A (en) | 2015-02-02 | 2015-02-02 | Multifunctional fluid mechanics experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104599567A true CN104599567A (en) | 2015-05-06 |
Family
ID=53125310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510053803.8A Pending CN104599567A (en) | 2015-02-02 | 2015-02-02 | Multifunctional fluid mechanics experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104599567A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575230A (en) * | 2016-03-09 | 2016-05-11 | 鲁东大学 | Pipeline-sectional-area-adjustable hydromechanics experiment table |
| CN105590538A (en) * | 2016-02-27 | 2016-05-18 | 山东大学（威海） | Gas heat exchanger and air flow measurement experimental device |
| CN105590524A (en) * | 2016-03-03 | 2016-05-18 | 鲁东大学 | Hydrodynamics test bench with rotary adjustment of overflow plate height |
| CN106935125A (en) * | 2017-04-28 | 2017-07-07 | 福州大学 | Fluid flow resistance and flow measurement self assembly experimental provision and its application method |
| CN107808573A (en) * | 2017-12-04 | 2018-03-16 | 西南石油大学 | A kind of multiduty Hydromechanics experimental device platform |
| CN107909900A (en) * | 2017-12-27 | 2018-04-13 | 清华大学 | A kind of oil stream line display device with current stabilization guiding subassembly |
| CN108877429A (en) * | 2018-08-29 | 2018-11-23 | 苏州市格致科教仪器设备制造有限公司 | A kind of hydrodynamics comprehensive experimental device |
| CN110570732A (en) * | 2019-08-29 | 2019-12-13 | 河海大学 | high accuracy hydraulics pipe flow laboratory bench |
| CN113720389A (en) * | 2021-08-31 | 2021-11-30 | 苏州大学 | Dyeing hydromechanics measuring device is pressed in area |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588491A (en) * | 2004-07-23 | 2005-03-02 | 浙江大学 | Stoploy type self circulation open-channel test groove |
| CN2793847Y (en) * | 2005-03-11 | 2006-07-05 | 清华大学 | Small fluid mechanical multifunctional experimental device with high water head |
| CN201117133Y (en) * | 2007-11-07 | 2008-09-17 | 徐伟 | Multifunctional fluid mechanics experimental installation |
| CN101774686A (en) * | 2010-04-02 | 2010-07-14 | 孟翔麟 | Biological contact oxidation pond for recirculating aquaculture system |
| CN102435230A (en) * | 2011-08-26 | 2012-05-02 | 中国农业大学 | Slope plot runoff flow measurement system of triangular weir |
| CN202258045U (en) * | 2011-04-11 | 2012-05-30 | 长江大学 | L-II fluid mechanics integrated testing instrument |
| CN203311698U (en) * | 2013-05-10 | 2013-11-27 | 中国石油大学(华东) | Comprehensive hydrodynamic experiment apparatus |
| CN203520715U (en) * | 2013-05-29 | 2014-04-02 | 莱帕克(北京)科技有限公司 | Comprehensive hydromechanics device capable of being freely combined |
| CN204440761U (en) * | 2015-02-02 | 2015-07-01 | 江苏农林职业技术学院 | A kind of Multifunctional fluid mechanics experimental installation |
-
2015
- 2015-02-02 CN CN201510053803.8A patent/CN104599567A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588491A (en) * | 2004-07-23 | 2005-03-02 | 浙江大学 | Stoploy type self circulation open-channel test groove |
| CN2793847Y (en) * | 2005-03-11 | 2006-07-05 | 清华大学 | Small fluid mechanical multifunctional experimental device with high water head |
| CN201117133Y (en) * | 2007-11-07 | 2008-09-17 | 徐伟 | Multifunctional fluid mechanics experimental installation |
| CN101774686A (en) * | 2010-04-02 | 2010-07-14 | 孟翔麟 | Biological contact oxidation pond for recirculating aquaculture system |
| CN202258045U (en) * | 2011-04-11 | 2012-05-30 | 长江大学 | L-II fluid mechanics integrated testing instrument |
| CN102435230A (en) * | 2011-08-26 | 2012-05-02 | 中国农业大学 | Slope plot runoff flow measurement system of triangular weir |
| CN203311698U (en) * | 2013-05-10 | 2013-11-27 | 中国石油大学(华东) | Comprehensive hydrodynamic experiment apparatus |
| CN203520715U (en) * | 2013-05-29 | 2014-04-02 | 莱帕克(北京)科技有限公司 | Comprehensive hydromechanics device capable of being freely combined |
| CN204440761U (en) * | 2015-02-02 | 2015-07-01 | 江苏农林职业技术学院 | A kind of Multifunctional fluid mechanics experimental installation |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121178B (en) * | 2016-02-27 | 2019-03-29 | 山东大学 | A kind of gas flow measurement experimental provision of flow control |
| CN105590538A (en) * | 2016-02-27 | 2016-05-18 | 山东大学（威海） | Gas heat exchanger and air flow measurement experimental device |
| CN105590538B (en) * | 2016-02-27 | 2017-07-14 | 山东大学（威海） | A kind of gas flow measurement experimental provision |
| CN107121178A (en) * | 2016-02-27 | 2017-09-01 | 山东大学（威海） | A kind of gas flow measurement experimental provision of flow control |
| CN105590524A (en) * | 2016-03-03 | 2016-05-18 | 鲁东大学 | Hydrodynamics test bench with rotary adjustment of overflow plate height |
| CN105575230A (en) * | 2016-03-09 | 2016-05-11 | 鲁东大学 | Pipeline-sectional-area-adjustable hydromechanics experiment table |
| CN105575230B (en) * | 2016-03-09 | 2017-12-26 | 鲁东大学 | A kind of pipe section accumulates adjustable hydrodynamic calculations platform |
| CN106935125A (en) * | 2017-04-28 | 2017-07-07 | 福州大学 | Fluid flow resistance and flow measurement self assembly experimental provision and its application method |
| CN106935125B (en) * | 2017-04-28 | 2023-04-07 | 福州大学 | Fluid flow resistance and flow measurement self-assembly experimental device and use method thereof |
| CN107808573A (en) * | 2017-12-04 | 2018-03-16 | 西南石油大学 | A kind of multiduty Hydromechanics experimental device platform |
| CN107808573B (en) * | 2017-12-04 | 2023-10-20 | 西南石油大学 | Multipurpose fluid mechanics experimental device platform |
| CN107909900A (en) * | 2017-12-27 | 2018-04-13 | 清华大学 | A kind of oil stream line display device with current stabilization guiding subassembly |
| CN108877429A (en) * | 2018-08-29 | 2018-11-23 | 苏州市格致科教仪器设备制造有限公司 | A kind of hydrodynamics comprehensive experimental device |
| CN110570732A (en) * | 2019-08-29 | 2019-12-13 | 河海大学 | high accuracy hydraulics pipe flow laboratory bench |
| CN113720389A (en) * | 2021-08-31 | 2021-11-30 | 苏州大学 | Dyeing hydromechanics measuring device is pressed in area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104599567A (en) | Multifunctional fluid mechanics experimental device | |
| CN204440761U (en) | A kind of Multifunctional fluid mechanics experimental installation | |
| CN207199161U (en) | Multifunctional fluid mechanics experimental installation | |
| CN104458656A (en) | Online turbidity meter with flow control | |
| CN209102330U (en) | A kind of dual-purpose tester of the fluid energy equation of momentum | |
| CN203376230U (en) | Measuring device for pH (Potential of Hydrogen) value and density value of slurry | |
| CN203965273U (en) | Slurry density of desulfurizing absorption column measurement mechanism | |
| CN103091376B (en) | A kind of liquid constant flow velocity on-line analysis monitoring device | |
| KR101310447B1 (en) | Flow measuring device | |
| CN204374083U (en) | A kind of online turbidimeter with flow control | |
| CN106205340A (en) | Mine earth's surface raceway groove flowing water is burst water yield experiment porch | |
| CN204330519U (en) | The device of uninterrupted measurement slurry density of desulfurizing absorption column and pH value | |
| CN211847802U (en) | Special tool for measuring liquid level of gas collecting pipe of coke oven | |
| CN201096740Y (en) | Plasm PH value measuring device | |
| CN203053910U (en) | Online liquid constant flow velocity analysis monitoring device | |
| CN203719848U (en) | Tracer gas quantitative control release device | |
| CN202393431U (en) | Distributive porous plate flowmeter | |
| CN203572519U (en) | Portable sludge measuring device | |
| CN220356446U (en) | Annular pressure taking structure for flowmeter | |
| CN211264710U (en) | Automatic measurement type experiment teaching device for flow meter cognition and performance correction | |
| CN217424445U (en) | Integrated intelligent flow differential pressure transmitter | |
| CN100520308C (en) | Submerged dark-pipe water-displacement sensing equipment | |
| CN220690913U (en) | Immersed water quality detection device | |
| CN203241086U (en) | Sanitary vortex street flowmeter | |
| CN208751644U (en) | A kind of water meter detection anti-backflow device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |
|
| RJ01 | Rejection of invention patent application after publication |