CN107063932A - It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient - Google Patents
It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient Download PDFInfo
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- CN107063932A CN107063932A CN201710118103.1A CN201710118103A CN107063932A CN 107063932 A CN107063932 A CN 107063932A CN 201710118103 A CN201710118103 A CN 201710118103A CN 107063932 A CN107063932 A CN 107063932A
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- China
- Prior art keywords
- venturi tube
- drop
- feed unit
- pressure
- mother liquor
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- 239000012452 mother liquor Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000013508 migration Methods 0.000 claims abstract description 6
- 230000005012 migration Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000008602 contraction Effects 0.000 claims description 9
- 210000000867 larynx Anatomy 0.000 claims description 8
- 229920005479 Lucite® Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 11
- 239000000571 coke Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
Abstract
A kind of device for observing drop migration under Venturi tube pressure drop gradient disclosed by the invention, including mother liquor feed unit, sub- liquid feed unit, Venturi tube and measuring instrumentss；Mother liquor feed unit and sub- liquid feed unit are connected with Venturi tube, and mother liquor feed unit is that Venturi tube conveys air stream, and sub- liquid feed unit provides cooling water for Venturi tube, and measuring instrumentss are arranged on outside Venturi tube.Mother liquor feed unit can provide certain flow and the air stream of pressure for Venturi tube.Sub- liquid feed unit produces cooling water, and cooling water can form drop in Venturi tube, place it in mother liquor air.Measuring instrumentss are set outside Venturi tube, for showing its internal pressure drops gradient.The apparatus structure is ingenious, and simple compact, required power is few, and energy-conserving and environment-protective, cost is low.
Description
Technical field
The invention belongs to Thermal power engneering experiment field of measuring technique, it is related under a kind of observation Venturi tube pressure drop gradient
The device of drop migration.
Background technology
Energy-saving and emission-reduction are China's fundamental state policies, are also the main target of " 13 " period economic development.In Yulin Shen Fu
In semi-coke production, venturi tower is the capital equipment that coal tar is reclaimed in condensation from raw coke oven gas, and its energy-conservation is particularly important.However,
In Venturi tube, if regulation venturi tube structure parameter, obtaining larger pressure drop gradient will cause liquid film surface to condense temperature
Degree changes, and the tension gradient on liquid film surface also changes therewith, the heat capillary transport for easily occurring drop, at present, studies more
Tension gradient induction drop heat capillary transport is produced when being additional thermograde or concentration gradient on interface, and barometric gradient causes
The heat capillary transport that interfacial tension gradient is induced is rarely reported.
The content of the invention
The device that drop is migrated under Venturi tube pressure drop gradient, the device knot are observed it is an object of the invention to provide a kind of
Structure is reasonable in design, easy to use, can solve the problem that the problem of steam condensation by contact is less efficient in existing Venturi tube.
The present invention is to be achieved through the following technical solutions：
A kind of device for observing drop migration under Venturi tube pressure drop gradient disclosed by the invention, including mother liquor supply are single
Member, sub- liquid feed unit, Venturi tube and measuring instrumentss；Mother liquor feed unit and sub- liquid feed unit are connected with Venturi tube
Logical, mother liquor feed unit is that Venturi tube conveys air stream, and sub- liquid feed unit provides cooling water, measuring instrumentss for Venturi tube
It is arranged on outside Venturi tube.
Preferably, mother liquor feed unit is made up of air pump, air inlet pipe and gas tank, and air pump passes through air inlet pipe and Venturi tube phase
Even, gas tank and intake valve are set gradually on the air inlet pipe pipeline that air pump is connected with Venturi tube.
Preferably, the sub- liquid feed unit is made up of circulating pump, cold water pipe and shower nozzle, cold water pipe one end and circulating pump phase
Even, the other end is stretched into Venturi tube；Shower nozzle is arranged on and stretched on the cold water pipe in Venturi tube.It is additionally provided with cold water pipe cold
Water valve.
Preferably, Venturi tube is made up of transparent material.
It is further preferred that Venturi tube is made up of lucite.
Preferably, measuring instrumentss include several pressure gauges, several pressure gauges along in the short transverse of Venturi tube 10 according to
It is secondary to set.
It is further preferred that Venturi tube along contraction section and larynx section be from top to bottom sequentially installed with first pressure table,
Second pressure table, the 3rd pressure gauge, the 4th pressure gauge and the 5th pressure gauge.
Preferably, in addition to for shooting the video camera that drop is migrated.
It is further preferred that video camera is arranged in the middle of Venturi tube or contraction section on the upper side and larynx section position.
Compared with prior art, the present invention has following beneficial technique effect：
The device that drop is migrated under observation Venturi tube pressure drop gradient disclosed by the invention is by mother liquor feed unit, and sub- liquid is supplied
To unit, Venturi tube and measuring instrumentss composition.Mother liquor feed unit can provide certain flow and pressure for Venturi tube
Air stream.Sub- liquid feed unit produces cooling water, and cooling water can form drop in Venturi tube, place it in mother liquor air
In.Measuring instrumentss are set outside Venturi tube, for showing its internal pressure drops gradient.The apparatus structure is ingenious, simple compact,
Required power is few, and energy-conserving and environment-protective, cost is low.
Further, Venturi tube is processed using lucite tube, can be aerial with cameras view drop
Deformation and Transport.By change mother liquor and sub- flow quantity, jet size, venturi size, mother liquor and sub- liquid species come
Observe Transport of the drop in allobaric field under different operating modes.
Brief description of the drawings
The structural representation for the device that Fig. 1 migrates for drop under the observation Venturi tube pressure drop gradient of the present invention.
Wherein：1 air pump, 2 air inlet pipe, 3 gas tanks, 4 intake valves, 5 cold water pipes, 6 cold valves, 7 circulating pumps, 8 shower nozzles, 9 shootings
Machine, 10 Venturi tubes, 11 the 5th pressure gauges, 12 the 4th pressure gauges, 13 the 3rd pressure gauges, 14 the 4th pressure gauges, 15 first pressures
Table.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Embodiment 1
Referring to Fig. 1, the device that drop is migrated under observation Venturi tube pressure drop gradient disclosed by the invention, including mother liquor supply
Unit, sub- liquid feed unit, Venturi tube 10 and measuring instrumentss；Mother liquor feed unit and sub- liquid feed unit are and Venturi tube
10 are connected, and mother liquor feed unit is that Venturi tube 10 conveys air stream, and sub- liquid feed unit is that Venturi tube 10 provides cooling
Water, measuring instrumentss are arranged on outside Venturi tube 10.
The mother liquor feed unit is made up of air pump 1, air inlet pipe 2 and gas tank 3, and air pump 1 passes through air inlet pipe 2 and Venturi tube
10 are connected, and gas tank 3 and intake valve 4 are set gradually on the air inlet pipe pipeline that air pump 1 is connected with Venturi tube 10.
The sub- liquid feed unit is made up of circulating pump 7, cold water pipe 5 and shower nozzle 8, the one end of cold water pipe 5 and the phase of circulating pump 7
Even, the other end is stretched into Venturi tube 10；Shower nozzle 8 is arranged on and stretched on the cold water pipe 5 in Venturi tube 10.On cold water pipe 5
It is additionally provided with cold valves 6.
The Venturi tube 10 is made up of transparent material.It is further preferred that Venturi tube 10 is made up of lucite.
Preferably, the measuring instrumentss include several pressure gauges, and several pressure gauges are along the short transverse of Venturi tube 10
On set gradually.It is further preferred that being from top to bottom sequentially installed with first along contraction section and larynx section in Venturi tube 10
Pressure gauge 15, second pressure table 14, the 3rd pressure gauge 13, the 4th pressure gauge 12 and the 5th pressure gauge 11.
Device also includes the video camera 9 for being used to shoot drop migration.Preferably, video camera 9 is arranged in Venturi tube 10
Between or contraction section on the upper side and larynx section position.
The device is made up of mother liquor feed unit, sub- liquid feed unit, venturi arrangement and measuring instrumentss.Mother liquor is supplied
Unit is made up of air pump, gas tank and air inlet pipe, and certain flow and the air stream of pressure can be provided for Venturi tube.Sub- liquid supply
Unit is made up of circulating pump, cold water pipe and shower nozzle.Cooling water can enter shower nozzle via cold water pipe, and form in Venturi tube liquid
Drop, is placed it in mother liquor air.Some pressure gauges are installed successively along Venturi tube short transverse, for showing its internal pressure drops
Gradient.
Embodiment 2
Air pump 1 is connected to the left side of Venturi tube 10 by air inlet pipe 2, and gas tank 3 and air inlet are sequentially installed with air inlet pipe 2
Valve 4.Circulating pump 7 and cold water pipe 5 are installed on the right side of Venturi tube 10, cold valves 6 are installed on the cold water pipe 5, at this
One end that cold water pipe 5 extend into Venturi tube 10 is provided with shower nozzle 8, the top of Venturi tube 10 and medial side contraction section and
The position of larynx section is provided with video camera 9.In the left side of Venturi tube 10 first is sequentially installed with along contraction section and larynx section position
Pressure gauge 15, second pressure table 14, the 3rd pressure gauge 13, the 4th pressure gauge 12 and the 5th pressure gauge 11.
The device that drop is migrated under the observation Venturi tube pressure drop gradient of the present invention, when in use：
The air closed in intake valve 4, air enters gas tank 3 via air inlet pipe 2, stores the air of certain pressure.Then
Intake valve 4 is opened, is that Venturi tube 10 is passed through the air with certain pressure.When the contraction section of air stream flow through venturi 10
When, flow section is reduced, and pressure declines, and is arranged in first pressure table 15, the second pressure table the 14, the 3rd in the left side of Venturi tube 10
Pressure gauge 13, the 4th pressure gauge 12 and the 5th pressure gauge 11 can measure the pressure drop gradient of the inner air of Venturi tube 10 successively.Text
The cold water pipe 5 that the opposite side of venturi 10 is installed, can be passed through cooling water by circulating pump 7, be injected to through the formation drop of shower nozzle 8
In Venturi tube 10.So as to be formed using air as mother liquor, cooling water is the drop travel motion under pressure drop gradient of sub- liquid.Text
Venturi 10 is made using lucite tube, can shoot the aerial migration distorted movement of water droplet using video camera 9.In addition,
Air mass flow can be changed, cooling water flow, the size of shower nozzle 8 observes the aerial different Transport of water droplet.May be used also
The structural parameters for changing Venturi tube 10 form different pressure drop gradients.Meanwhile, the species of mother liquor air, and sub- liquid water can be changed
Species observation different fluid in drop Transport.
Claims (9)
1. a kind of observe the device that drop is migrated under Venturi tube pressure drop gradient, it is characterised in that including mother liquor feed unit, son
Liquid feed unit, Venturi tube (10) and measuring instrumentss；Mother liquor feed unit and sub- liquid feed unit with Venturi tube (10)
It is connected, mother liquor feed unit is that Venturi tube (10) conveys air stream, and sub- liquid feed unit is that Venturi tube (10) offer is cold
But water, it is outside that measuring instrumentss are arranged on Venturi tube (10).
2. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 1, it is characterised in that described
Mother liquor feed unit is made up of air pump (1), air inlet pipe (2) and gas tank (3), and air pump (1) passes through air inlet pipe (2) and Venturi tube
(10) it is connected, gas tank (3) and intake valve (4) is set gradually on the air inlet pipe pipeline that air pump (1) is connected with Venturi tube (10).
3. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 1, it is characterised in that described
Sub- liquid feed unit is made up of circulating pump (7), cold water pipe (5) and shower nozzle (8), and cold water pipe (5) one end is connected with circulating pump (7),
The other end is stretched into Venturi tube (10)；Shower nozzle (8) is arranged on and stretched on the cold water pipe (5) in Venturi tube (10)；In cold water
Cold valves (6) are additionally provided with pipe (5).
4. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 1, it is characterised in that literary mound
In pipe (10) be made up of transparent material.
5. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 4, it is characterised in that literary mound
In pipe (10) be made up of lucite.
6. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 1, it is characterised in that measurement
Instrument includes several pressure gauges, and several pressure gauges are set gradually along in Venturi tube (10) short transverse.
7. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 6, it is characterised in that in text
Venturi (10) is from top to bottom sequentially installed with first pressure table (15), second pressure table (14), the along contraction section and larynx section
Three pressure gauges (13), the 4th pressure gauge (12) and the 5th pressure gauge (11).
8. the device that drop is migrated under the observation Venturi tube pressure drop gradient according to any one in claim 1~7, its
It is characterised by, in addition to for shooting the video camera (9) of drop migration.
9. the device that drop is migrated under observation Venturi tube pressure drop gradient according to claim 8, it is characterised in that shooting
Machine (9) is arranged in the middle of Venturi tube (10) or contraction section on the upper side and larynx section position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118103.1A CN107063932A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118103.1A CN107063932A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063932A true CN107063932A (en) | 2017-08-18 |
Family
ID=59621466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710118103.1A Pending CN107063932A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107063932A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178347A (en) * | 2007-11-15 | 2008-05-14 | 天津大学 | Narrow slit Venturi throttling set and gas-liquid two-phase flow measuring system |
| CN103837323A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Thickness-variable liquid film pool device enabling liquid film to be stabilized rapidly after being impacted |
| CN103917303A (en) * | 2011-11-07 | 2014-07-09 | 株式会社爱发科 | Inkjet device and droplet-measurement method |
| CN104407008A (en) * | 2014-11-19 | 2015-03-11 | 华东理工大学 | Test system for evaluating local condensing heat transfer performance of mixed steam |
| CN105352994A (en) * | 2015-11-27 | 2016-02-24 | 榆林学院 | Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas |
| CN106228875A (en) * | 2016-09-29 | 2016-12-14 | 河海大学常州校区 | A kind of droplet impact liquid film visualized experiment platform and using method thereof |
| CN206515198U (en) * | 2017-03-01 | 2017-09-22 | 榆林学院 | The device that drop is migrated under a kind of observation pressure drop gradient |
-
2017
- 2017-03-01 CN CN201710118103.1A patent/CN107063932A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178347A (en) * | 2007-11-15 | 2008-05-14 | 天津大学 | Narrow slit Venturi throttling set and gas-liquid two-phase flow measuring system |
| CN103917303A (en) * | 2011-11-07 | 2014-07-09 | 株式会社爱发科 | Inkjet device and droplet-measurement method |
| CN103837323A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Thickness-variable liquid film pool device enabling liquid film to be stabilized rapidly after being impacted |
| CN104407008A (en) * | 2014-11-19 | 2015-03-11 | 华东理工大学 | Test system for evaluating local condensing heat transfer performance of mixed steam |
| CN105352994A (en) * | 2015-11-27 | 2016-02-24 | 榆林学院 | Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas |
| CN106228875A (en) * | 2016-09-29 | 2016-12-14 | 河海大学常州校区 | A kind of droplet impact liquid film visualized experiment platform and using method thereof |
| CN206515198U (en) * | 2017-03-01 | 2017-09-22 | 榆林学院 | The device that drop is migrated under a kind of observation pressure drop gradient |
Non-Patent Citations (2)
| Title |
|---|
| 方立德等: "基于狭缝文丘里管的气液两相流测量", 《传感技术学报》 * |
| 田茂诚等: "文丘里管内气液两相环状流传热及流动特性研究", 《东南大学学报》 * |
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| PB01 | Publication | ||
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Application publication date: 20170818 |