CN109001246A - A kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics - Google Patents
A kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics Download PDFInfo
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- CN109001246A CN109001246A CN201810759781.0A CN201810759781A CN109001246A CN 109001246 A CN109001246 A CN 109001246A CN 201810759781 A CN201810759781 A CN 201810759781A CN 109001246 A CN109001246 A CN 109001246A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
Abstract
The invention discloses a kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics, including semicircle tube body, the upper/lower terminal correspondence of semicircle tube body is respectively arranged with upper end cover and lower cover；The axial two wall sides of semicircle tube body are fixed with screen；Visualization shell is covered on the outside of semicircle tube body；Semicircle tube body, upper end cover, lower cover and screen and visualization shell surround a visualization confined space jointly；In visualization confined space, test coil pipe, guiding device and the liquid phase uniform device and gas phase uniform device for surrounding semicircle tube body are disposed on screen close to middle and upper part；Liquid phase uniform device and gas phase uniform device are located at correspondence outside visualization confined space and are connected separately with fluid inlet and gas phase import.The advantages that structure of the invention is compact, occupied area is small is constructed close to true wound tube heat exchanger internal structure, and FLNG wound tube heat exchanger internal flow state under Observable sea situation tests internal temperature and pressure changing.
Description
Technical field
The present invention relates to FLNG wound tube heat exchanger technical field more particularly to a kind of FLNG wound tube heat exchanger flowing with
The experimental rig of Research on Heat Transfer Characteristics.
Background technique
LNG FPSO for Marginal Gas Fields Development (LNG-FPSO) is a kind of novel deep-sea and marginal gas field development skill
Art integrates the production of liquefied natural gas, storage and unloading, simplifies the development process at deep-sea and marginal gas field, have at
The advantages that this is low, construction period is short, recovery of the capital is fast.The technology has become the research hotspot of ocean engineering circle at present, in setting
Count up to 16, FLNG device with the construction phase.
Main cryogenic heat exchanger is most important heat exchange equipment in FLNG process units, is the master of energy loss in liquefaction process
Want source.Wound tube heat exchanger is increasingly becoming large-scale land and floating because compact-sized, opereating specification is big, is easy to the advantages that enlargement
The main cryogenic heat exchanger of first choice of formula natural gas liquefaction device.The MFR liquid that the C3/MR liquefaction process and Linde that APCI is used use
Chemical industry skill all uses wound tube heat exchanger as main cryogenic heat exchanger.Wound tube heat exchanger belongs to falling film type evaporation heat exchanger,
Mainly the gasification by liquid film outside pipe come realize with manage in media for heat exchange, due to liquid film thickness be much smaller than pipeline diameter,
Thermal boundary layer in diabatic process is relatively thin, therefore compared to immersion heat exchanger, falling film type evaporation heat exchanger has heat transfer coefficient
High, the advantages that cryogen filling quantity is few, low energy consumption, heat exchanger volume is compact.But compared to being flowed in pipe, due to there is no tube wall about
Beam, film evaporation device itself have unstability, and under different flox condition, the liquid film of liquid film flow pattern and tube wall between managing is distributed
Characteristic is different, and film evaporation device characteristic directly affects heat exchanger heat exchange and pressure drop performance.Wound tube heat exchanger shell-side falling liquid film at present
It is excessively coarse to flow flow pattern division, does not consider flow pattern influence factor in heat exchange and Correlations；And influenced by sea situation, FLNG around
Pipe heat exchanger shell-side can have liquid bias current and then cause to exchange heat insufficient, influence the performance indicator of liquefaction process.Therefore, need
Want the experimental rig of a kind of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of flowing of FLNG wound tube heat exchanger with
The experimental rig of Research on Heat Transfer Characteristics has many advantages, such as that compact-sized, occupied area is small, close in true wound tube heat exchanger
Portion's structure constructs, FLNG wound tube heat exchanger internal flow state under Observable sea situation, test internal temperature and pressure change feelings
Condition.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics, including semicircle tube body, described half
The upper/lower terminal correspondence of tube is respectively arranged with upper end cover and lower cover；The axial two wall sides of the semicircle tube body are fixed with
Screen；Visualization shell is covered on the outside of the semicircle tube body；The semicircle tube body, upper end cover, lower cover and screen and can
A visualization confined space is surrounded jointly depending on outside the pale of civilization shell；In the visualization confined space, on the screen close on
Portion is disposed with test coil pipe, guiding device and the liquid phase uniform device and gas phase uniform device for surrounding semicircle tube body；The liquid
Phase uniform device and gas phase uniform device are located at correspondence outside visualization confined space and are connected separately with fluid inlet and gas phase import.
Preferably, the liquid phase uniform device includes liquid phase level-one uniform device and liquid phase second level uniform device；The liquid phase level-one
Uniform device is identical as gas phase uniform device structure to be in semi-circular tubular structure and is respectively arranged with downward deflector hole thereon；It is described
Liquid phase second level uniform device is also equipped with downward deflector hole and covers in outside liquid phase level-one uniform device.
Preferably, it is arc structure that the liquid phase second level uniform device, which covers in the top outside liquid phase level-one uniform device,.
Preferably, the lower part of the guiding device is provided with multiple independent fan blades, and each fan blades corresponds to face disposed thereon
One deflector hole of liquid phase second level uniform device.
Preferably, the lower part of the guiding device is provided with a continuous fan blades.
Preferably, it is provided on the screen for fixed test coil pipe, guiding device and liquid phase uniform device and gas phase
The mounting hole of uniform device.
Preferably, the pore size of the screen upper installing hole or with pitch of holes according to the test cast of coil pipe, caliber with
Tube spacing is different and different.
Preferably, the screen is fixed on the axial two wall sides of semicircle tube body by inserting mode, easy to disassemble.
Preferably, the bottom of the lower cover is provided with the collecting tank of connection visualization confined space, and the collecting tank connects
It is connected to gas-liquid two-phase outlet.
Preferably, the visualization shell selects transparent glass material, the liquid phase uniform device gas-liquid, gas phase uniform device,
Test coil pipe and guiding device are all made of stainless steel material.
The experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics provided by the invention, gas phase media and liquid
Phase medium enters from gas phase import and fluid inlet respectively, and respectively enters after being divided into two at gas phase import and fluid inlet
In gas phase uniform device and liquid phase level-one uniform device, wherein gas phase media is uniformly sprayed from the deflector hole of gas phase uniform device, due to
Gas phase media and liquid phase are different, liquid phase medium uniformly sprayed from the deflector hole of liquid phase level-one uniform device first again to
Up in liquid phase second level uniform device and from uniformly sprayed in the deflector hole of liquid phase second level uniform device finally by guiding device it is uniformly distributed after,
Gas, liquid medium flow field coil pipe after tested, and then for studying the outer flow pattern of coil pipe pipe and its microscopic characteristics.Gas phase media and liquid phase are situated between
Matter under collecting tank liquid collecting effect, is exported by biphase gas and liquid flow and is flowed out after wound tube heat exchanger internal mix.Due to liquid phase
Negotiability is not so good as gas phase negotiability, therefore is provided with collecting tank and is collected to liquid, is convenient for liquid communication, prevents around pipe
Formula exchanger base hydrops.Similarly, since liquid communication ability is poor, experimental provision is provided with liquid phase level-one uniform device, liquid
Phase second level uniform device and guiding device.Additionally by replace different screen be change screen upper installing hole pore size or and
Pitch of holes, and then can reach the effect for adjusting the cast, caliber and tube spacing of test coil pipe.
Compared with prior art, the beneficial effects of the present invention are:
1, falling film evaporation research outside traditional horizontal tube is extended under by Sea Conditions low temperature cold outside winding pipe by the present invention
Agent film evaporation device and heat exchange are studied, and by high speed video system and are rocked plateform system and are illustrated under the conditions of inclination is rocked FLNG around pipe
Formula heat exchanger internal flow pattern evolution properties.
2, disk pipe and special-shaped coil pipe extratubal falling film stream flow pattern evolutionary model under the conditions of the present invention is rocked by comparison inclination,
Optimal coil pipe cast is selected, FLNG wound tube heat exchanger seaworthiness is improved.
3, the present invention improves FLNG around tubular type by comparing different water conservancy diversion shapes, uniform device structure inside optimization heat exchanger
Heat exchanger seaworthiness.
4, the present invention obtains tilting to rock changing FLNG around tubular type by temperature, pressure test macro with plateform system is rocked
The affecting laws of hot device shell-side heat exchange and pressure drop.
5, with the experimental rig of Research on Heat Transfer Characteristics, liquid phase is uniformly distributed for FLNG wound tube heat exchanger of the invention flowing
Device, test coil pipe and guiding device are all made of stainless steel and are made, and visualization shell is made of transparent glass, have strong corrosion resistant
Property, maintenance investment is small, the characteristics of long service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall structure diagram of wound tube heat exchanger experimental rig of the present invention；
Fig. 2 is the partial assembled schematic diagram of wound tube heat exchanger experimental rig of the present invention；
Fig. 3 is the structural schematic diagram of the different screens of the present invention；
Fig. 4 is the structural schematic diagram of gas, liquid uniform device of the present invention；
Fig. 5 is the structural schematic diagram of liquid phase second level uniform device of the present invention；Specifically, (a) is main view, (b) is attached view,
It (c) is left view；
Fig. 6 is the structural schematic diagram of gas phase uniform device of the present invention and liquid phase level-one uniform device；Specifically, (a) is main view,
(b) it is attached view, (c) is left view；
Fig. 7 is a kind of structural schematic diagram of guiding device of the present invention；Specifically, (a) is main view, (b) is attached view,
It (c) is left view；
Fig. 8 is the structural schematic diagram of another guiding device of the present invention；Specifically, (a) is main view, (b) is attached view,
It (c) is left view；
Fig. 9 is the structural schematic diagram of fluid inlet of the present invention and gas phase import；
Figure 10 is the structural schematic diagram of present invention test coil pipe；
Figure 11 is the structural schematic diagram of present invention visualization shell；
Figure 12 is the mating high speed video system of wound tube heat exchanger experimental rig of the present invention and the entirety for rocking plateform system
Schematic diagram.
Wherein, 1- semicircle tube body, 2- upper end cover, 3- lower cover, 4- screen, 41- mounting hole, 5- visualize shell, and 6- is surveyed
Examination coil pipe, 7,7 '-guiding devices, 8- liquid phase uniform device, 80- fluid inlet, 81- liquid phase level-one uniform device, 82- liquid phase second level are equal
Cloth device, 9- gas phase uniform device, 90- gas phase import, 10- collecting tank, the outlet of 11- gas-liquid two-phase.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It is especially marine to wound tube heat exchanger internal flow state in the prior art to shake as background technique is introduced
The research of shell-side internal flow state is insufficient under the conditions of dynamic, indefinite shell-side internal flow pattern Evolution, in order to solve skill as above
Art problem, the invention proposes a kind of experimental rigs of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics.
As shown in figs. 1-11, a kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics, including half
The upper/lower terminal correspondence of tube 1, the semicircle tube body 1 is respectively arranged with upper end cover 2 and lower cover 3；The semicircle tube body 1
Axial two wall sides be fixed with screen 4；The outside of the semicircle tube body 1 is covered with visualization shell 5；The semicircle tube body 1, upper end
Lid 2, lower cover 3 and screen 4 and visualization shell 5 surround a visualization confined space jointly, are used for experimental observation pipe
Interior two phase flow pattern develops；In the visualization confined space, encirclement half is disposed with close to middle and upper part on the screen 4
Test coil pipe 6, guiding device 7 and the liquid phase uniform device 8 and gas phase uniform device 9 of tube 1, wherein liquid phase uniform device 8 is gentle
Phase uniform device 9 is located at correspondence outside visualization confined space and is connected separately with fluid inlet 80 and gas phase import 90；The lower cover 3
Bottom be provided with connection visualization confined space collecting tank 10, the collecting tank 10 be connected with gas-liquid two-phase outlet 11.
Preferably, the liquid phase uniform device 8 includes liquid phase level-one uniform device 81 and liquid phase second level uniform device 82；The liquid
Phase level-one uniform device 81 is identical as 9 structure of gas phase uniform device to be in semi-circular tubular structure and is respectively arranged with downward lead thereon
Discharge orifice；Downward deflector hole is also equipped on the liquid phase second level uniform device 82 and is covered in outside liquid phase level-one uniform device 81；It is described
Liquid phase level-one uniform device 81 is uniformly distributed for realizing the level-one of liquid phase medium；The liquid phase second level uniform device 82 realizes liquid phase medium
Second level is uniformly distributed.It should be noted that: direction " downward " is corresponding with " upper/lower terminal of semicircle tube body " direction consistent.
Preferably, it is arc structure that the liquid phase second level uniform device 82, which covers in the top outside liquid phase level-one uniform device 81,
The influence that liquid phase uniform device flows gas phase media can be reduced to the greatest extent, gas medium is facilitated to flow.It should be noted that:
Direction " top " is corresponding with " upper/lower terminal of semicircle tube body " direction consistent.
Preferably, the lower part of the guiding device 7 is provided with multiple independent fan blades, and each fan blades corresponds to face disposed thereon
82 1 deflector holes of liquid phase second level uniform device, as shown in Figure 7；Or the lower part of the guiding device 7 ' is provided with a continuous fan
Piece, as shown in Figure 8.The guiding device 7 (7 ') is uniformly distributed for realizing the three-level of liquid phase medium.In traditional wound tube heat exchanger
Film evaporation device is evenly distributed with performance, optimization wound tube heat exchanger drop here by both guiding devices are compared not added with fan blades water conservancy diversion
Liquid film is uniformly distributed in membrane flow.
Specifically, in order to make liquid film uniformly land from 6 lower part of radiator coil tube, for the drop-wise stream and column in film evaporation device
Flow pattern is flowed, 7 lower part of guiding device is provided with multiple independent fan blades, the liquid phase second level that each fan blades corresponds to face disposed thereon is uniformly distributed
82 1 deflector holes of device facilitate liquid film to flow through from pipe and collect respectively at the multiple independent fan blades in lower part and uniformly land, such as
Shown in Fig. 7；Similar, in order to improve the uniformity that fan flow flows in film evaporation device, 7 ' lower part of guiding device is provided with one
A continuous fan blades, as shown in Figure 8.It is uniformly distributed for realizing the three-level of liquid phase medium to change guiding device 7 (7 ') by replacement.
Preferably, it is provided on the screen 4 for fixed test coil pipe 6, guiding device 7 (7 ') and liquid phase uniform device 8
And the mounting hole 41 of gas phase uniform device 9, it is the pore size for changing 4 upper installing hole 41 of screen by replacing different screens 4
Or and pitch of holes, and then can reach adjust test coil pipe 6 cast, caliber and tube spacing effect.
Preferably, the screen 4 is fixed on the axial two wall sides of semicircle tube body 1 by inserting mode, easy to disassemble.
Preferably, the visualization shell 5 selects transparent glass material, the liquid phase uniform device gas-liquid 8, gas phase uniform device
9, it tests coil pipe 6 and guiding device 7 (7 ') is all made of stainless steel material.
The experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics provided by the invention, gas phase media and liquid
Phase medium enters from gas phase import 90 and fluid inlet 80 respectively, and after being divided into two at gas phase import 90 and fluid inlet 80
It respectively enters in gas phase uniform device 9 and liquid phase level-one uniform device 81, wherein gas phase media is equal from the deflector hole of gas phase uniform device 9
Even ejection, due to gas phase media and liquid phase difference, liquid phase medium is first from the deflector hole of liquid phase level-one uniform device 81
In uniformly spray and reach in liquid phase second level uniform device 82 and uniformly sprayed from the deflector hole of liquid phase second level uniform device 82 last again
By guiding device 7 it is uniformly distributed after, gas, liquid medium flow field coil pipe 6 after tested, and then for studying the outer flow pattern of coil pipe pipe and its microcosmic
Characteristic.Gas phase media and liquid phase medium under 10 liquid collecting of collecting tank effect, pass through gas-liquid after wound tube heat exchanger internal mix
Two-phase outflux 11 flows out.Due to liquid phase negotiability be not so good as gas phase negotiability, be provided with collecting tank 10 to liquid into
Row is collected, and is convenient for liquid communication, is prevented wound tube heat exchanger bottom hydrops；Similarly, since liquid communication ability is poor, experiment
Device is provided with liquid phase level-one uniform device 81, liquid phase second level uniform device 82 and guiding device 7 (7 ').It is different additionally by replacing
Screen 4 be change 4 upper installing hole 41 of screen pore size or and pitch of holes, and then can reach adjust test coil pipe 6 cast,
The effect of caliber and tube spacing.
The flowing of FLNG wound tube heat exchanger and the experimental rig of Research on Heat Transfer Characteristics based on above-mentioned offer will when test
Wound tube heat exchanger experimental rig I and high speed video system II, which is fixed on, to be rocked on platform III, by rocking platform III come mould
Operating condition is rocked in quasi- marine inclination, and high speed video system II dynamic captures wound tube heat exchanger experimental provision I shell-side flow pattern and developed
Journey, as shown in figure 12.
In the description of the present invention, it is to be understood that, term " on ", " in ", "lower", "inner", the instructions such as "outside" side
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics, which is characterized in that including semi-circular tube
The upper/lower terminal correspondence of body, the semicircle tube body is respectively arranged with upper end cover and lower cover；Axial two walls of the semicircle tube body
Side is fixed with screen；Visualization shell is covered on the outside of the semicircle tube body；The semicircle tube body, upper end cover, lower cover and grid
Plate and visualization shell surround a visualization confined space jointly；In the visualization confined space, on the screen
It is disposed with the test coil pipe, guiding device and the liquid phase uniform device that surround semicircle tube body close to middle and upper part and gas phase is uniformly distributed
Device；The liquid phase uniform device and gas phase uniform device are located at correspondence outside visualization confined space and are connected separately with fluid inlet and gas phase
Import.
2. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the liquid phase uniform device includes liquid phase level-one uniform device and liquid phase second level uniform device；The liquid phase level-one uniform device and gas phase
Uniform device structure is identical to be in semi-circular tubular structure and is respectively arranged with downward deflector hole thereon；The liquid phase second level is uniformly distributed
Device is also equipped with downward deflector hole and covers in outside liquid phase level-one uniform device.
3. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as claimed in claim 2, feature exist
In it is arc structure that the liquid phase second level uniform device, which covers in the top outside liquid phase level-one uniform device,.
4. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the lower part of the guiding device is provided with multiple independent fan blades, and the liquid phase second level that each fan blades corresponds to face disposed thereon is uniformly distributed
One deflector hole of device.
5. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the lower part of the guiding device is provided with a continuous fan blades.
6. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In being provided with the installation for fixed test coil pipe, guiding device and liquid phase uniform device and gas phase uniform device on the screen
Hole.
7. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as claimed in claim 6, feature exist
In, the pore size of the screen upper installing hole or with pitch of holes it is different from tube spacing according to cast, the caliber of test coil pipe and
It is different.
8. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the screen is fixed on the axial two wall sides of semicircle tube body by inserting mode.
9. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the bottom of the lower cover is provided with the collecting tank of connection visualization confined space, and the collecting tank is connected with gas-liquid two-phase
Outlet.
10. the experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics as described in claim 1, feature exist
In the visualization shell selects transparent glass material；The liquid phase uniform device gas-liquid, gas phase uniform device are tested coil pipe and are led
Stream device is all made of stainless steel material.
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| CN201810759781.0A CN109001246B (en) | 2018-07-11 | 2018-07-11 | FLNG wound tube heat exchanger flows and test device of heat transfer characteristic research |
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| CN201810759781.0A CN109001246B (en) | 2018-07-11 | 2018-07-11 | FLNG wound tube heat exchanger flows and test device of heat transfer characteristic research |
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Cited By (4)
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| CN112197889A (en) * | 2020-09-07 | 2021-01-08 | 合肥通用机械研究院有限公司 | Two-phase flow heat exchange experimental device |
| CN112254997A (en) * | 2020-09-18 | 2021-01-22 | 南京航空航天大学 | Low-pressure environment efficient heat exchange simulation test device and test method thereof |
| CN112832742A (en) * | 2021-01-15 | 2021-05-25 | 西南石油大学 | Well cementation displacement interface simulation experiment device and using method thereof |
| CN113514266A (en) * | 2021-05-21 | 2021-10-19 | 中国石油大学(北京) | Experimental apparatus is surveyd to wound tube heat exchanger internal flow type under low temperature operating mode |
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