CN106823476A - A kind of centrifugal gas-liquid separator and its experimental rig - Google Patents
A kind of centrifugal gas-liquid separator and its experimental rig Download PDFInfo
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- CN106823476A CN106823476A CN201611222479.9A CN201611222479A CN106823476A CN 106823476 A CN106823476 A CN 106823476A CN 201611222479 A CN201611222479 A CN 201611222479A CN 106823476 A CN106823476 A CN 106823476A
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- disengagement chamber
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- chamber
- liquid separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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- Chemical Kinetics & Catalysis (AREA)
- Centrifugal Separators (AREA)
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Abstract
The invention belongs to gas-liquid separation technical field, the more particularly to gas-liquid separation of microgravity environment.A kind of centrifugal gas-liquid separator, its technical scheme is：It includes：Upper disengagement chamber (1), middle disengagement chamber (2), lower disengagement chamber (5), inlet (6), liquid outlet (7), first seal (3), second seal (8), fastener (4)；Structure of gas liquid separator in the present invention is simple, small volume, separative efficiency are high, can apply to space and ground.Experimental rig of the invention and test method can carry out two to separation process to 90 degree of vertical shootings clear at a high speed there is provided a kind of fluid circulation system that can carry out flow accurate adjustment, gasometry filling in the state of state of weightlessness is explicitly indicated；The apparatus and method are simple, reliable, can be widely applied for the similar experiment field of biphase gas and liquid flow under microgravity.
Description
Technical field
The invention belongs to gas-liquid separation technical field, the more particularly to gas-liquid separation of microgravity environment.
Background technology
With the development of space technology, the life-span of spacecraft is more and more long, and the reliability to wherein fluid loop will
Seek also more and more higher.In order to prevent the gas that liquid loop introduces during in-orbit replacing fluid path part, and liquid working substance is long-term
The gas that in-orbit use process is produced is separated out when exceeding the gas solubility of liquid working substance, and influence power part normally runs, and protects
The normal operation of power part is demonstrate,proved, it is necessary to the gas in loop is collected and is removed using gas-liquid separator.
Spacecraft works in space under microgravity, and the liquid working substance on corresponding spacecraft also exists
Work is circulated under microgravity state.And ground conventional test cannot under accurate simulation microgravity biphase gas and liquid flow separation process,
Therefore need microgravity gas-liquid separation experimental rig carries out gas-liquid separation simulated test under microgravity, to gas on spacecraft
The separating property of liquid/gas separator is judged.
The content of the invention
The purpose of the present invention is：A kind of gas-liquid separator suitable for microgravity environment, and its experimental rig are provided.
The technical scheme is that：A kind of centrifugal gas-liquid separator, it includes：Upper disengagement chamber, middle disengagement chamber, lower point
From chamber, inlet, liquid outlet, first seal, second seal, fastener；
Upper disengagement chamber and the lower equal one end open of disengagement chamber, one end closing；Middle disengagement chamber both ends open, inner chamber by top post
Shape cavity combines to be formed with the hemispherical cavity of bottom；The inner chamber of lower disengagement chamber is by the cone-shaped cavity on top and the column chamber of bottom
Body combines to be formed；
Upper disengagement chamber is docked with the openend of lower disengagement chamber, and compresses connection by fastener；Middle disengagement chamber is located at upper point
In chamber, it is axially fixed that middle disengagement chamber is carried out by the end face of the annular boss on upper disengagement chamber inner peripheral surface and lower disengagement chamber
Position；Respectively by first between the joint face of upper disengagement chamber and middle disengagement chamber and between the joint face of middle disengagement chamber and lower disengagement chamber
Seal is sealed；
Inlet and lower disengagement chamber insertion, and the axis of inlet and lower disengagement chamber inner chamber bottom cylindrical cavities excircle
Face is tangent, and inlet is sealed with the junction of lower disengagement chamber by second seal；
Liquid outlet and upper disengagement chamber insertion, and the axis of liquid outlet is tangent with the outer circumference surface of upper disengagement chamber inner chamber, goes out liquid
Mouth is sealed with the junction of upper disengagement chamber by second seal；
After gas-liquid mixture tangentially enters lower disengagement chamber from inlet, under the action of the centrifugal force, gas therein is to center
Assemble and stay in lower disengagement chamber, liquid therein then flows into upper disengagement chamber by middle disengagement chamber, and is flowed out from liquid outlet.
A kind of centrifugal gas-liquid separator experimental rig, it includes：Two high-speed cameras arranged in a crossed manner, light source gathers
Light shield, weightless indicator lamp, two Chang Guan electricity magnet valves, normally open solenoid valve seals air pipe, electromagnetic flowmeter, Mini-adjustable valve, first
Manual modulation valve, second and the 3rd manual modulation valve, pump, fluid storage tank, transparent pipeline；
Light source, snoot provides illumination to shoot；
Two high-speed cameras record centrifugal gas-liquid separator process of the test；
Weightless indicator lamp is arranged on centrifugal gas-liquid separator, shows gravity state；
On fluid storage tank to the transparent pipeline between tested gas-liquid separator inlet, pump is sequentially provided with, first manual is adjusted
Section valve, Mini-adjustable valve, electromagnetic flowmeter, normally open solenoid valve, envelope air pipe accesses normally opened electromagnetism by two Chang Guan electricity magnet valves
The transparent pipeline at valve or so two ends, forms in parallel；Tested gas-liquid separator liquid outlet connects fluid storage tank by transparent pipeline；Reservoir
Case is provided with second and the 3rd manual modulation valve.
Beneficial effect：Structure of gas liquid separator in the present invention is simple, small volume, separative efficiency are high, can apply to sky
Between and ground.Experimental rig of the invention and test method can carry out flow accurate adjustment, gasometry and add there is provided one kind
The fluid circulation system of note, can be carried out two to separation process and is hung down to 90 degree in the state of state of weightlessness is explicitly indicated
Straight shooting clear at a high speed；The apparatus and method are simple, reliable, can be widely applied for the similar experiment of biphase gas and liquid flow under microgravity
Field.
Brief description of the drawings
Fig. 1 is the front view of gas-liquid separator in the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is gas-liquid separator experimental rig structured flowchart in the present invention.
Specific embodiment
Embodiment 1：Referring to accompanying drawing 1,2, a kind of centrifugal gas-liquid separator, it includes：Upper disengagement chamber 1, middle disengagement chamber 2,
Lower disengagement chamber 5, inlet 6, liquid outlet 7, first seal 3, second seal 8, fastener 4；
Upper disengagement chamber 1 and the equal one end open of lower disengagement chamber 5, one end closing；The both ends open of middle disengagement chamber 2, inner chamber is by top
Cylindrical cavities combine to be formed with the hemispherical cavity of bottom；Cone-shaped cavity and bottom of the inner chamber of lower disengagement chamber 5 by top
Cylindrical cavities combine to be formed；
Upper disengagement chamber 1 is docked with the openend of lower disengagement chamber 5, and compresses connection by fastener 4；Middle disengagement chamber 2 is located at
In upper disengagement chamber 1, middle disengagement chamber 2 is entered by the end face of the annular boss on the inner peripheral surface of upper disengagement chamber 1 and lower disengagement chamber 5
Row axially position；Between the joint face of upper disengagement chamber 1 and middle disengagement chamber 2 and middle disengagement chamber 2 and lower disengagement chamber 5 joint face it
Between sealed by first seal 3 respectively；
Outside inlet 6 and the insertion of lower disengagement chamber 5, and the axis of inlet 6 and the cylindrical cavities of the inner chamber bottom of lower disengagement chamber 5
Periphery is tangent, and inlet 6 is sealed with the junction of lower disengagement chamber 5 by second seal 8；
Liquid outlet 7 and the insertion of upper disengagement chamber 1, and the axis of liquid outlet 7 is tangent with the outer circumference surface of the inner chamber of upper disengagement chamber 1,
Liquid outlet 7 is sealed with the junction of upper disengagement chamber 1 by second seal 8；
After gas-liquid mixture tangentially enters lower disengagement chamber 5 from inlet 6, under the action of the centrifugal force, gas therein is in
The heart is assembled and is stayed in lower disengagement chamber 5, and liquid therein then flows into upper disengagement chamber 1 by middle disengagement chamber 2, and is flowed from liquid outlet 7
Go out.
Embodiment 2：Referring to accompanying drawing 3, a kind of centrifugal gas-liquid separator experimental rig, it includes：Camera square crossing
Two high-speed cameras 21,26 for setting, light source 23, snoot 24, weightless indicator lamp 25, two Chang Guan electricity magnet valves 27,10, often
Open electromagnetic valve 28, seals air pipe 9, electromagnetic flowmeter 11, Mini-adjustable valve 12, the hand of first manual regulating valve 13, the second and the three
Dynamic regulating valve 15,17, pump 14, fluid storage tank 16, transparent pipeline 18；
Light source 23, snoot 24 provides illumination to shoot；
Two high-speed cameras 21,26 record centrifugal gas-liquid separator process of the test；
Weightless indicator lamp 25 is arranged on centrifugal gas-liquid separator, shows gravity state；Weightless indicator lamp 5 is generally not
Luminous instruction weightlessness, gravity state are connected in bright, process of the test when weightless index reaches requirement；
On fluid storage tank 16 to the transparent pipeline between the inlet 6 of tested gas-liquid separator 22, pump 14, first are sequentially provided with
Manual modulation valve 13, Mini-adjustable valve 12, electromagnetic flowmeter 11, normally open solenoid valve 28, envelope air pipe 9 passes through two Chang Guan electricity magnetic
Valve 27,10 accesses the transparent pipeline at the two ends of normally open solenoid valve 28 or so, forms in parallel；The liquid outlet 7 of tested gas-liquid separator 22 leads to
Cross the connection fluid storage tank 16 of transparent pipeline 18；Fluid storage tank 16 is provided with second and the 3rd manual modulation valve 15,17.
Embodiment 3, a kind of centrifugal gas-liquid separator test method, it is used such as the centrifugal gas-liquid separator of embodiment 2
Experimental rig, comprises the following steps：
A. it is powered to light source 23, weightless indicator lamp 25, two high-speed cameras 21,26, two Chang Guan electricity magnet valves 27,10,
Normally open solenoid valve 28, electromagnetic flowmeter 11, the performance of pump 14 is checked that, to envelope air pipe 9, the sealing of transparent pipeline 18 is entered
Row is checked；
B. pump 14 is started, by inlet 6 to filling in tested gas-liquid separator 22 and transparent pipeline 18 from fluid storage tank 16
Enter liquid, wherein the tested main body of gas-liquid separator 22 is made and by second and the 3rd manual modulation valve 15 of transparent material,
17 fill fluid storage tank 16；
C. first adjusted with first manual regulating valve 13 and be filled with fluid flow, then flow is carried out with Mini-adjustable valve 12 and accurately adjusted
Section, makes flow reach predetermined test flow；
C. two Chang Guan electricity magnet valves 27,10, normally open solenoid valves 28 are powered off；
D. the liquid working substance in the envelope transparent pipeline of emptying of air pipe 9 is removed, can be with by the length for adjusting envelope air pipe 9
Adjust the volume of injection testing gas；
E. envelope air pipe 9 is accessed between two Chang Guan electricity magnet valves 27,10；
F. allow centrifugal gas-liquid separator experimental rig overall from high-altitude free-falling, to realize the proving ring of microgravity
Border；
G. while whereabouts, start two high-speed cameras 21,26 and start to shoot；
H. after time delay 1 second, two Chang Guan electricity magnet valves 27,10 are first powered opening；
I. normally open solenoid valve 28 is powered closing again；
Now, experimental rig integrally enters microgravity test state, and weightless indicator lamp 25 lights instruction gravity state；
J. the gas in envelope air pipe 9 is carried into tested gas-liquid separator 22, and in tested gas-liquid separator 22
Middle completion gas-liquid separation, concentrates near the central axis of the small end face of lower disengagement chamber 5 after being separated in gas from liquid；
Centrifugal gas-liquid separator experimental rig falls in place, and each device powers down completes process of the test and shoots.
Claims (2)
1. a kind of centrifugal gas-liquid separator, it is characterized in that：It includes：Upper disengagement chamber (1), middle disengagement chamber (2), lower disengagement chamber
(5), inlet (6), liquid outlet (7), first seal (3), second seal (8), fastener (4)；
The upper disengagement chamber (1) and the lower disengagement chamber (5) one end open, one end closing；Open at middle disengagement chamber (2) two ends
Mouthful, inner chamber is combined with the hemispherical cavity of bottom by the cylindrical cavities on top and is formed；The inner chamber of the lower disengagement chamber (5) is by top
Cone-shaped cavity combine to be formed with the cylindrical cavities of bottom；
The upper disengagement chamber (1) is docked with the openend of the lower disengagement chamber (5), and compresses connection by the fastener (4)；
In the upper disengagement chamber (1), the middle disengagement chamber (2) is by the upper disengagement chamber (1) for the middle disengagement chamber (2)
The end face of annular boss and the lower disengagement chamber (5) on periphery carries out axially position；The upper disengagement chamber (1) with it is described in
Respectively by institute between the joint face of disengagement chamber (2) and between the joint face of the middle disengagement chamber (2) and the lower disengagement chamber (5)
State first seal (3) sealing；
The inlet (6) and the lower disengagement chamber (5) insertion, and the axis of the inlet (6) and the lower disengagement chamber (5)
The cylindrical cavities outer circumference surface of inner chamber bottom is tangent, and the junction of the inlet (6) and the lower disengagement chamber (5) is by described
Two seals (8) are sealed；
The liquid outlet (7) and the upper disengagement chamber (1) insertion, and the axis of the liquid outlet (7) and the upper disengagement chamber (1)
The outer circumference surface of inner chamber is tangent, and the junction of the liquid outlet (7) and the upper disengagement chamber (1) is by the second seal (8)
Sealing；
It is under the action of the centrifugal force, therein after gas-liquid mixture tangentially enters the lower disengagement chamber (5) from the inlet (6)
Gas is assembled and is stayed in the lower disengagement chamber (5) to center, and liquid therein is then flowed into described by the middle disengagement chamber (2)
Upper disengagement chamber (1), and flowed out from the liquid outlet (7).
2. a kind of centrifugal gas-liquid separator experimental rig, it is characterized in that：It includes：Two high-speed cameras arranged in a crossed manner
(21,26), light source (23), snoot (24), weightless indicator lamp (25), two Chang Guan electricity magnet valves (27,10), normally open solenoid valve
(28), envelope air pipe (9), electromagnetic flowmeter (11), Mini-adjustable valve (12), first manual regulating valve (13), second and the 3rd
Manual modulation valve (15,17), pump (14), fluid storage tank (16), transparent pipeline (18)；
The light source (23), the snoot (24) provides illumination to shoot；
Two high-speed cameras (21,26) record centrifugal gas-liquid separator process of the test；
The weightless indicator lamp (25) shows gravity state on the centrifugal gas-liquid separator；
On the fluid storage tank (16) to the transparent pipeline between tested gas-liquid separator (22) inlet (6), institute is sequentially provided with
Pump (14) is stated, the first manual regulating valve (13), the Mini-adjustable valve (12), the electromagnetic flowmeter (11) is described normal
Open electromagnetic valve (28), the envelope air pipe (9) accesses the normally open solenoid valve by described two Chang Guan electricity magnet valves (27,10)
(28) the transparent pipeline at left and right two ends, forms in parallel；The tested gas-liquid separator (22) liquid outlet (7) is by the transparent pipe
Road (18) connects the fluid storage tank (16)；The fluid storage tank (16) is provided with described second and the 3rd manual modulation valve (15,17).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222479.9A CN106823476B (en) | 2016-12-27 | 2016-12-27 | A kind of centrifugal gas-liquid separator and its experimental rig |
| CN201811481692.0A CN109569029B (en) | 2016-12-27 | 2016-12-27 | Centrifugal gas-liquid separator test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222479.9A CN106823476B (en) | 2016-12-27 | 2016-12-27 | A kind of centrifugal gas-liquid separator and its experimental rig |
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| CN201811481692.0A Division CN109569029B (en) | 2016-12-27 | 2016-12-27 | Centrifugal gas-liquid separator test device |
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| Publication Number | Publication Date |
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| CN106823476A true CN106823476A (en) | 2017-06-13 |
| CN106823476B CN106823476B (en) | 2019-07-12 |
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| CN201811481692.0A Active CN109569029B (en) | 2016-12-27 | 2016-12-27 | Centrifugal gas-liquid separator test device |
| CN201611222479.9A Active CN106823476B (en) | 2016-12-27 | 2016-12-27 | A kind of centrifugal gas-liquid separator and its experimental rig |
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| CN201811481692.0A Active CN109569029B (en) | 2016-12-27 | 2016-12-27 | Centrifugal gas-liquid separator test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082712A (en) * | 2018-05-28 | 2018-12-25 | 皖西学院 | A kind of multi-functional heterochromatic suede picker of feather processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158108A (en) * | 1986-12-23 | 1988-07-01 | Ishikawajima Harima Heavy Ind Co Ltd | Gas separator used under gravity low |
| DE3715157A1 (en) * | 1987-05-07 | 1988-11-17 | Dornier System Gmbh | Apparatus for separating and removing gas from a gas/liquid mixture |
| CN104667584A (en) * | 2015-02-12 | 2015-06-03 | 浙江大学 | Spiral type gas-liquid separator under micro-gravity based on porous material |
| CN105056580A (en) * | 2015-06-03 | 2015-11-18 | 中国人民解放军装备学院 | Cyclone in-orbit gas-liquid separation apparatus |
| CN105396412A (en) * | 2015-12-18 | 2016-03-16 | 重庆大学 | Gas-liquid separator suitable for microgravity |
| CN105642453A (en) * | 2016-03-23 | 2016-06-08 | 北京航天动力研究所 | High-pressure high-flow microgravity centrifugal gas and liquid separation device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007335145A (en) * | 2006-06-13 | 2007-12-27 | Matsushita Electric Ind Co Ltd | Fuel cell system |
| CN102507871B (en) * | 2011-11-02 | 2014-03-05 | 西南石油大学 | Visual dynamic simulating device for deposition in gas hydrate pipeline |
| US9067087B2 (en) * | 2012-08-30 | 2015-06-30 | Oceaneering International, Inc. | Membrane-enabled reverse lung |
| CN103063675A (en) * | 2012-12-14 | 2013-04-24 | 陕西中明能源投资有限公司 | Gas-liquid two-phase pipeline experimental system |
| CN106031846B (en) * | 2015-03-19 | 2019-01-22 | 中国科学院大连化学物理研究所 | A kind of application and aqueous vapor separating property test device of hollow fiber ultrafiltration membrane |
| CN105909536B (en) * | 2016-05-10 | 2018-04-03 | 浙江理工大学 | A kind of centrifugal pump biphase gas and liquid flow Performance Test System and its method of testing |
-
2016
- 2016-12-27 CN CN201811481692.0A patent/CN109569029B/en active Active
- 2016-12-27 CN CN201611222479.9A patent/CN106823476B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158108A (en) * | 1986-12-23 | 1988-07-01 | Ishikawajima Harima Heavy Ind Co Ltd | Gas separator used under gravity low |
| DE3715157A1 (en) * | 1987-05-07 | 1988-11-17 | Dornier System Gmbh | Apparatus for separating and removing gas from a gas/liquid mixture |
| CN104667584A (en) * | 2015-02-12 | 2015-06-03 | 浙江大学 | Spiral type gas-liquid separator under micro-gravity based on porous material |
| CN105056580A (en) * | 2015-06-03 | 2015-11-18 | 中国人民解放军装备学院 | Cyclone in-orbit gas-liquid separation apparatus |
| CN105396412A (en) * | 2015-12-18 | 2016-03-16 | 重庆大学 | Gas-liquid separator suitable for microgravity |
| CN105642453A (en) * | 2016-03-23 | 2016-06-08 | 北京航天动力研究所 | High-pressure high-flow microgravity centrifugal gas and liquid separation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082712A (en) * | 2018-05-28 | 2018-12-25 | 皖西学院 | A kind of multi-functional heterochromatic suede picker of feather processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106823476B (en) | 2019-07-12 |
| CN109569029A (en) | 2019-04-05 |
| CN109569029B (en) | 2020-12-15 |
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