CN111289518A - Test device and method for observing behavior of flowing boiling bubbles in micro-channel - Google Patents
Test device and method for observing behavior of flowing boiling bubbles in micro-channel Download PDFInfo
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- 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
- G01N21/85—Investigating moving fluids or granular solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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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
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Abstract
The invention discloses a test device and a method for observing the behavior of flowing boiling bubbles in a microchannel, belonging to the field of physical measurement, wherein the device comprises a camera, a mass flow meter and a liquid preparation device, the camera is arranged outside a drying oven and can observe the inside of the drying oven, and a light source is also arranged in the drying oven; the micro-channel is arranged in the drying box; the liquid preparation device is communicated with the micro-channel, the mass flow meter is connected with the liquid preparation device, and the mass flow meter is connected with the server; the liquid preparation device comprises a mixing tank and a plurality of liquid storage tanks, wherein the liquid storage tanks are all communicated with the mixing tank, and the mixing tank is communicated with one end of a channel; the other end of the micro-channel is also communicated with an emptying mechanism. The device can solve the problem that a test device for researching the flowing boiling heat exchange and bubble dynamic characteristics of the non-azeotropic mixed working medium in the micro-channel is lacked at present.
Description
Technical Field
The invention belongs to the field of physical measurement, and particularly relates to a test device and a method for observing the behavior of flowing boiling bubbles in a microchannel.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The micro-channel heat exchanger is a heat exchanger with a channel equivalent diameter of 10-2000 μm. As a new heat exchange technology, the micro-channel heat exchanger has the advantages of high heat exchange efficiency, compact structure, convenience in realizing modularization and the like, and has wide application prospects in the fields of chip heat dissipation, aerospace, heating and ventilation air conditioners, fuel cells, natural gas liquefaction and the like.
Compared with the traditional heat exchanger, the micro-channel heat exchanger has the advantages that the channel size is small, the gravity action borne by the working medium is weakened, the surface tension action is obvious, and the bubble behavior in the flowing boiling presents an obvious micro-scale effect, so that the flowing boiling heat exchange characteristic and the bubble dynamic characteristic have larger difference, particularly for non-azeotropic mixed working media such as LNG (liquefied natural gas) and the like, the heat exchange is weakened due to the temperature slippage among different components in the working medium, and the difference is more obvious.
The research on the flowing boiling heat exchange characteristic and the bubble dynamic characteristic of the microchannel heat exchanger is the most important basic research for developing the microchannel heat exchanger technology, but the research on the aspect is not much at present, and the research on the non-azeotropic mixed working medium is particularly deficient, and the inventor finds that a test device for researching the flowing boiling heat exchange and the bubble dynamic characteristic of the non-azeotropic mixed working medium in the microchannel does not exist at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a test device and a method for observing the behavior of flowing boiling bubbles in a microchannel, and the device can solve the problem that a test device for researching the flowing boiling heat exchange and bubble dynamic characteristics of a non-azeotropic mixed working medium in the microchannel is lacked at present.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the technical scheme of the invention provides a test device for observing the behavior of flowing boiling bubbles in a microchannel, which comprises a camera, a mass flow meter and a liquid preparation device, wherein the camera is arranged outside a drying oven and can observe the inside of the drying oven, and a light source is also arranged in the drying oven; the micro-channel is arranged in the drying box; the liquid preparation device is communicated with the micro-channel, the mass flow meter is connected with the liquid preparation device, and the mass flow meter is connected with the server;
the liquid preparation device comprises a mixing tank and a plurality of liquid storage tanks, wherein the liquid storage tanks are all communicated with the mixing tank, and the mixing tank is communicated with one end of a channel; the other end of the micro-channel is also communicated with an emptying mechanism.
As a further technical scheme, the liquid storage tank comprises a first liquid storage tank and a second liquid storage tank, the first liquid storage tank and the second liquid storage tank are used for storing low-temperature working media, a liquid outlet at the bottom of the first liquid storage tank is communicated with the mixing tank through a first pipeline, a liquid outlet at the bottom of the second liquid storage tank is communicated with the mixing tank through a second pipeline, and mass flow meters are respectively arranged on the first pipeline and the second pipeline; the driving nitrogen bottle is respectively connected with the air inlets at the upper ends of the first liquid storage tank and the second liquid storage tank through pipelines; the mixing tank is communicated with the micro-channel through a third pipeline, and the third pipeline is provided with a filter, a preheater, a thermometer and a barometer.
As a further technical scheme, a reflecting mirror and a prism are further arranged in the drying box, and the drying box is communicated with the dryer and the blower; the drying box is provided with a window, and the camera can observe the inside of the drying box through the window; the prism and the reflector are arranged on two sides of the micro-channel and form a three-dimensional imaging light path.
As a further technical scheme, the liquid distribution device further comprises a purging device, wherein the purging device comprises a gas cylinder, and the gas cylinder is communicated with the liquid distribution device.
In a second aspect, the embodiments of the present invention further provide a test method for observing the behavior of a flowing boiling bubble in a microchannel, which uses the test apparatus for observing the behavior of a flowing boiling bubble in a microchannel according to the first aspect, and includes the following steps:
the data of the preset mass flow meter are A, B two groups;
debugging a camera;
purging pipelines of the whole device;
starting and adjusting the device at the temperature A until the data record of the mass flow meter at the moment accords with the data of the group A;
adjusting the temperature, and recording the data of the mass flowmeter at the moment at the temperature B;
adjusting the proportion of the liquid in the mixing tank until the data record of the mass flow meter accords with the data of the group B at the moment;
regulating the proportion of the liquid in the mixing tank for multiple times, and recording the data of the mass flow meter after each regulation;
and purging the pipeline of the whole device.
As a further technical scheme, after a plurality of liquid storage tanks use working media of a first combination for testing, the working media in the liquid storage tanks are replaced by a second combination, a third combination, … and an Nth combination for testing.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
1) the technical scheme provided by the invention provides a test device and a method for observing the behavior of flowing boiling bubbles in a microchannel, the device can carry out various forms of observation and tests of various components, and can provide a complete test device and a complete test method for the problems of a test device for researching the flowing boiling heat exchange and bubble dynamic characteristics of a non-azeotropic mixed working medium in the microchannel, thereby being convenient for research.
2) According to the technical scheme provided by the invention, a plurality of liquid storage tanks and one mixing tank are matched, and the purging device is added, so that continuous tests of working media with different mixing ratios can be realized, the operation steps are simplified, and the test time is shortened.
3) According to the technical scheme provided by the invention, the liquid storage tanks are communicated with the mixing tank, the working medium flows conveniently, the component distribution ratio is flexible, and the cost for purchasing the fixed component mixed working medium is reduced.
4) According to the technical scheme provided by the invention, the three-dimensional imaging light path is used for observation, the behavior of the boiling bubbles flowing in the micro-channel can be observed in a three-dimensional manner, and a three-dimensional image is formed by the server, so that the method is more accurate and more vivid than a two-dimensional image.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Figure 1 is an overall system configuration diagram of the present invention in accordance with one or more embodiments,
FIG. 2 is a three-dimensional imaging schematic of the present invention in accordance with one or more embodiments.
In the figure: 1-a first liquid storage tank, 2-a second liquid storage tank, 3-a driving nitrogen storage tank, 4-a mass flow meter, 5-a gas cylinder, 6-an open Dewar flask, 7-a mixing tank, 8-a filter, 9-a preheater, 10-a drying box, 11-a light source, 12-a blower, 13-a dryer, 14-a window, 15-a microchannel experimental section, 16-a camera, 17-a vaporizer, 18-a volume flow meter, 19-a safety emptying device, 20-a liquefied petroleum gas storage tank, 21-a data collector, 22-a server, 24-a prism and 25-a reflector.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the prior art lacks a testing device for researching the flowing boiling heat exchange and bubble dynamic characteristics of a non-azeotropic mixed working medium in a microchannel, and in order to solve the technical problems, the invention provides a testing device and a method for observing the flowing boiling bubble behavior in the microchannel, and the following description is combined with an embodiment and an attached drawing of the specification.
Example 1
In a typical embodiment of the present invention, as shown in fig. 1, a test apparatus for observing the behavior of flowing boiling bubbles in a microchannel includes a liquid preparation mechanism, a purging mechanism, an observation mechanism, an emptying mechanism, a data monitoring and collecting mechanism, and pipelines, pipes, valves, etc. connecting each device, wherein the liquid preparation mechanism is communicated with the observation mechanism, and the liquid preparation mechanism can provide a mixed working medium liquid composed of precise components to the observation mechanism; the purging mechanism is connected with all pipelines in the embodiment, all pipelines comprise pipelines used for connecting various mechanisms and the micro-channel and pipelines of the micro-channel, the purging mechanism blows nitrogen into the testing mechanism and the pipelines before the interval test, and the observation mechanism is used for observing the micro-channel; the emptying mechanism is communicated with the micro-channel and is used for emptying the mixed gas safely and pollution-free; the data monitoring and collecting mechanism is connected with the observation mechanism and used for collecting test data and recording each parameter signal.
It is understood that the microchannel in this embodiment is the experimental subject of this embodiment, and in general, the microchannel, also called microchannel heat exchanger, refers to a heat exchanger with a channel equivalent diameter of 10-1000 μm, in which there are tens of fine flow channels in the flat tube, and both ends of the flat tube are connected to circular headers, and partitions are provided in the headers to divide the flow channels of the heat exchanger into several flows.
The liquid distribution mechanism comprises a first liquid storage tank 1, a second liquid storage tank 2, a driving nitrogen storage tank, a mass flow meter 4, an open Dewar flask 6, a mixing tank 7, a filter 8 and a preheater 9, wherein the first liquid storage tank 1 and the second liquid storage tank 2 adopt double-layer fixed vacuum powder heat-insulation storage tanks, low-temperature working media are in the storage tanks, a bottom liquid outlet of the first liquid storage tank 1 is communicated with the mixing tank 7 through a first pipeline, a bottom liquid outlet of the second liquid storage tank 2 is communicated with the mixing tank 7 through a second pipeline, and the mass flow meter 4 is respectively arranged on the first pipeline and the second pipeline; the driving nitrogen bottle 5 is respectively connected with the air inlets at the upper ends of the first liquid storage tank 1 and the second liquid storage tank 2 through pipelines; the mixing tank 7 is arranged in the open Dewar flask 6, and the Dewar flask is filled with liquid nitrogen for keeping cold; the mixing tank 7 is connected with an observation mechanism through a third pipeline, and the third pipeline is provided with a filter 8, a preheater 9, a thermometer and a barometer.
In other embodiments, the liquid dispensing mechanism can adopt a larger number of storage tanks to realize the mixing of three or more liquids, and such simple modifications can be directly obtained by those skilled in the art according to the working principle of the present invention, and are considered to fall within the protection scope of the present invention.
The pipeline in the embodiment adopts a stainless steel pipe and a rubber plastic pipe with an aluminum foil for cold insulation.
The inlet and outlet pipelines of all the devices are provided with a shutoff valve; the liquid outlets of the first liquid storage tank 1 and the second liquid storage tank 2 are provided with regulating valves to realize the regulation of flow.
The mass flowmeter 4 adopts a Coriolis flowmeter with high precision, the Coriolis flowmeter is provided with a primary meter in a matching way, and the primary meter can realize the on-site observation and data uploading of flow values.
The preheater 9 adopts an electric heater, and can accurately adjust the heating power so as to realize different heating requirements.
The purging mechanism comprises a purging nitrogen cylinder 5 and a purging pipeline. And the purging nitrogen cylinder 5 is connected with each pipeline of the mechanism through a purging pipeline.
The observation mechanism comprises a drying box 10, an air blower 12, a dryer 13, a micro-channel, a light source 11, a reflector 25, a prism 24 and a camera 16, wherein the camera in the embodiment adopts a CCD camera, the drying box 10 is connected with the dryer 13 and the air blower 12, and a check valve is arranged at the outlet side; a window is arranged on the wall surface of the drying box 10, and a CCD camera is arranged outside the window; the micro-channel and light source 11, the reflector 25 and the prism 24 are arranged in the drying box 10; the prism 24 and the mirror 25 are arranged on both sides of the microchannel to constitute a three-dimensional imaging optical path.
The light source 11 is a stroboscopic LED surface light source 11.
The venting mechanism comprises a vaporizer 17, a volume flow meter 18, a safety vent 19 and a liquefied petroleum gas storage tank 20. The inlet of the vaporizer 17 is connected with the observation mechanism through a pipeline, the outlet of the vaporizer is connected with the safe emptying device 19 through a pipeline, and a volume flow meter 18 is arranged on the pipeline; the liquefied petroleum gas storage tank 20 is connected with the safety emptying device 19 through a pipeline.
It can be understood that safe venting device 19 in this embodiment is the evacuator promptly, and it is the device by wide application in the chemical industry field, establishes blow-down pipe, spark arrester, afterburning lamp in the safe venting device 19, ensures that the gaseous mixture of diffusing fully burns to reduce environmental pollution, afterburning lamp adopts the full-automatic combustor that can flame-out gas shutoff and procedure ignition, no longer gives unnecessary details to the specific structure of safe venting device here.
The volume flow meter 18 is provided with a bypass line, and a shutoff valve is arranged on the line.
The data monitoring and collecting mechanism comprises a data collector 21 and a server 22. The data collector 21 collects flow, pressure, temperature, and CCD signals in the mechanism, and stores the signals in the server 22 after processing, and it is understood that the data collector 21 includes a volume flow meter 18, a mass flow meter 4, a press, a thermometer, and a CCD camera.
It can be understood that the specific names and installation positions of the pipeline installation valves in the embodiment are as follows:
the safety emptying device 19 valve is arranged on the safety emptying device 19; front and rear valves of the volume flow meter 18, which are installed at front and rear ends of the volume flow meter 18;
micro-channel front and back valves installed at the front and back ends of the micro-channel to be tested;
the inlet valve of the mixing tank 7 is arranged at the position, close to the mixing tank 7, of the first pipeline and the second pipeline;
the purging nitrogen branch pipe valve is arranged on a pipeline which is connected with the first pipeline and the second pipeline of the nitrogen cylinder 5;
a valve of the purging nitrogen cylinder 5, which is arranged on a main pipe of the nitrogen cylinder 5;
a volumetric flow meter 18 bypass valve which bypasses the volumetric flow meter 18;
a microchannel bypass valve mounted to the microchannel bypass;
a liquid distribution system valve installed in the third pipeline;
the first liquid storage tank liquid outlet regulating valve is arranged at the outlet of the first liquid storage tank;
and the second liquid storage tank liquid outlet regulating valve is arranged at the outlet of the second liquid storage tank.
Example 2
This example discloses a test method for observing the behavior of boiling bubbles flowing in a microchannel, which firstly states that all valves in the test apparatus are closed before a set of tests is started; the method comprises the following steps:
the method comprises the following steps: the data of the preset mass flow meter are A, B two groups; installing a micro-channel, and debugging an LED light source 11 and a camera 16;
step two: sequentially opening a valve of a safety emptying device 19, valves before and after a volume flow meter 18, valves before and after a micro-channel and a valve of an inlet valve of a mixing tank 7 to purge a nitrogen branch pipe valve; keeping the volume flow meter 18 bypass valve, the micro-channel bypass valve and the liquid distribution system valve closed;
step three: opening a valve of a purging nitrogen cylinder 5 to perform pipeline purging;
step four: closing a valve of the purging nitrogen cylinder 5 and a valve of the purging nitrogen branch pipe;
step five: opening a valve of the liquefied petroleum gas storage tank 20 and igniting a afterburning lamp;
step six: sequentially turning on the gasifier 17 and the blower 12;
step seven: pouring liquid nitrogen into the open Dewar flask 6;
step eight: opening the data collector 21 and the server 2;
step nine: opening a driving nitrogen valve, a first liquid storage tank air inlet valve and a second liquid storage tank air inlet valve, slowly adjusting a first liquid storage tank liquid outlet adjusting valve and a second liquid storage tank liquid outlet adjusting valve, and observing a mass flow counting value until the mass flow counting value is adjusted to an A group of preset values;
step ten: turning on the preheater 9, and slowly adjusting the power of the preheater 9 to a preset value to adjust the temperature;
step eleven: performing test observation, CCD photographing and data acquisition at the temperature obtained in the step ten;
step twelve: and adjusting the liquid outlet adjusting valve of the first liquid storage tank and the liquid outlet adjusting valve of the second liquid storage tank, observing the numerical values of the two mass flow meters, adjusting the numerical values to the preset value of the group B, and repeating the eleventh operation of the step after the flow is stable.
Step thirteen: repeating the step twelve, and performing a plurality of groups of mixed working medium tests with different component proportions;
fourteen steps: after all the tests are finished, closing the data acquisition unit 21 and the server 2;
step fifteen: the preheater 9 and the blower 12 are sequentially closed;
sixthly, the steps are as follows: closing a liquid outlet regulating valve of the first liquid storage tank 1, a liquid outlet regulating valve of the second liquid storage tank 2, a driving nitrogen valve, an air inlet valve of the first liquid storage tank 1 and an air inlet valve of the second liquid storage tank 2 in sequence;
seventeen steps: opening a valve of a purging nitrogen cylinder 5 and a purging nitrogen branch valve to perform pipeline purging;
eighteen steps: the valves of the vaporizer 17 and the liquefied petroleum gas storage tank 20 are closed in sequence.
Nineteen steps: the valve of the purge nitrogen gas cylinder 5 and the purge nitrogen gas branch valve were closed.
Twenty steps: after the liquid nitrogen in the open Dewar flask 6 is completely evaporated, all valves of the test system are closed.
And after one group of tests is finished, replacing the liquid in the first liquid storage tank and the second liquid storage tank, and repeating the test steps to finish other groups of tests.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an observe test device of interior flow boiling bubble action of microchannel which characterized in that: the drying oven comprises a camera, a mass flow meter and a liquid preparation device, wherein the camera is arranged outside the drying oven and can observe the inside of the drying oven, and a light source is also arranged in the drying oven; the micro-channel is arranged in the drying box; the liquid preparation device is communicated with the micro-channel, the mass flow meter is connected with the liquid preparation device, and the mass flow meter is connected with the server;
the liquid preparation device comprises a mixing tank and a plurality of liquid storage tanks, wherein the liquid storage tanks are all communicated with the mixing tank, and the mixing tank is communicated with one end of a channel; the other end of the micro-channel is also communicated with an emptying mechanism.
2. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 1, wherein: the mixing tank is installed in a cabin body with a low-temperature environment.
3. A test device for observing the behavior of a flowing boiling gas bubble in a microchannel, according to claim 2, wherein: the liquid storage tank comprises a first liquid storage tank and a second liquid storage tank, the first liquid storage tank and the second liquid storage tank are used for storing low-temperature working media, a liquid outlet at the bottom of the first liquid storage tank is communicated with the mixing tank through a first pipeline, a liquid outlet at the bottom of the second liquid storage tank is communicated with the mixing tank through a second pipeline, and mass flow meters are respectively arranged on the first pipeline and the second pipeline; the driving nitrogen bottle is respectively connected with the air inlets at the upper ends of the first liquid storage tank and the second liquid storage tank through pipelines; the mixing tank is communicated with the micro-channel through a third pipeline, and the third pipeline is provided with a filter, a preheater, a thermometer and a barometer.
4. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 1, wherein: a reflector and a prism are also arranged in the drying box, and the drying box is communicated with the dryer and the blower; the drying box is provided with a window, and the camera can observe the inside of the drying box through the window; the prism and the reflector are arranged on two sides of the micro-channel and form a three-dimensional imaging light path.
5. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 1, wherein: the emptying mechanism comprises a vaporizer, a volume flow meter, an emptying device and a liquefied petroleum gas storage tank, wherein one end of the vaporizer is communicated with the micro-channel, and the other end of the vaporizer is communicated with the emptying device; the liquefied petroleum gas storage tank is communicated with the emptying device.
6. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 5, wherein: the volume flowmeter is provided with a bypass pipeline, and a shutoff valve is arranged on the pipeline.
7. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 1, wherein: the mass flowmeter is characterized by also comprising a server for recording data, wherein the camera and the mass flowmeter are electrically connected to the server.
8. The experimental apparatus for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 1, wherein: the liquid distribution device is characterized by further comprising a purging device, wherein the purging device comprises a gas cylinder which is communicated with the liquid distribution device.
9. A test method for observing the behavior of flowing boiling bubbles in a microchannel is characterized in that: use of a test device according to any of claims 1 to 8 for observing the behavior of a flowing boiling bubble in a microchannel, comprising the steps of:
the data of the preset mass flow meter are A, B two groups;
debugging a camera;
purging pipelines of the whole device;
starting and adjusting the device at the temperature A until the data record of the mass flow meter at the moment accords with the data of the group A;
adjusting the temperature, and recording the data of the mass flowmeter at the moment at the temperature B;
adjusting the proportion of the liquid in the mixing tank until the data record of the mass flow meter accords with the data of the group B at the moment;
regulating the proportion of the liquid in the mixing tank for multiple times, and recording the data of the mass flow meter after each regulation;
and purging the pipeline of the whole device.
10. A test method for observing the behavior of a flowing boiling gas bubble in a microchannel according to claim 9, wherein: after the working media of the first combination are used for the multiple liquid storage tanks for testing, the working media in the multiple liquid storage tanks are replaced by the working media of the second combination, the third combination, … and the Nth combination for testing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223033.8A CN111289518A (en) | 2020-03-26 | 2020-03-26 | Test device and method for observing behavior of flowing boiling bubbles in micro-channel |
| PCT/CN2020/120948 WO2021189819A1 (en) | 2020-03-26 | 2020-10-14 | Test device and method for observing bubble behavior of flow boiling in microchannel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223033.8A CN111289518A (en) | 2020-03-26 | 2020-03-26 | Test device and method for observing behavior of flowing boiling bubbles in micro-channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111289518A true CN111289518A (en) | 2020-06-16 |
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| WO (1) | WO2021189819A1 (en) |
Cited By (3)
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| CN112268723A (en) * | 2020-10-22 | 2021-01-26 | 中国石油大学(华东) | Boiling heat exchange experimental device for promoting uniform heating of low-temperature mixed working medium |
| WO2021189819A1 (en) * | 2020-03-26 | 2021-09-30 | 青岛理工大学 | Test device and method for observing bubble behavior of flow boiling in microchannel |
| CN115614023A (en) * | 2022-12-16 | 2023-01-17 | 中国石油集团川庆钻探工程有限公司 | Underground visualization system for coiled tubing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006126341A2 (en) * | 2005-05-24 | 2006-11-30 | Toyota Jidosha Kabushiki Kaisha | Hydrogen-fueled internal combustion engine |
| US10369567B2 (en) * | 2015-11-04 | 2019-08-06 | International Business Machines Corporation | Continuous, capacitance-based monitoring of liquid flows in a microfluidic device |
| CN207516288U (en) * | 2017-09-29 | 2018-06-19 | 华南理工大学 | Additional ultrasound-enhanced complicated micro lubricative pores array microchannel boiling heat transfer experiment system |
| CN110620096A (en) * | 2019-08-13 | 2019-12-27 | 江苏科技大学 | High aspect ratio foam metal micro-channel phase change cooling device compounded with aluminum substrate |
| CN111289518A (en) * | 2020-03-26 | 2020-06-16 | 青岛理工大学 | Test device and method for observing behavior of flowing boiling bubbles in micro-channel |
-
2020
- 2020-03-26 CN CN202010223033.8A patent/CN111289518A/en not_active Withdrawn
- 2020-10-14 WO PCT/CN2020/120948 patent/WO2021189819A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189819A1 (en) * | 2020-03-26 | 2021-09-30 | 青岛理工大学 | Test device and method for observing bubble behavior of flow boiling in microchannel |
| CN112268723A (en) * | 2020-10-22 | 2021-01-26 | 中国石油大学(华东) | Boiling heat exchange experimental device for promoting uniform heating of low-temperature mixed working medium |
| CN115614023A (en) * | 2022-12-16 | 2023-01-17 | 中国石油集团川庆钻探工程有限公司 | Underground visualization system for coiled tubing |
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| WO2021189819A1 (en) | 2021-09-30 |
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