CN114235802A - Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior - Google Patents
Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior Download PDFInfo
- Publication number
- CN114235802A CN114235802A CN202111518328.9A CN202111518328A CN114235802A CN 114235802 A CN114235802 A CN 114235802A CN 202111518328 A CN202111518328 A CN 202111518328A CN 114235802 A CN114235802 A CN 114235802A
- Authority
- CN
- China
- Prior art keywords
- boiling
- temperature
- pool
- pressure
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009835 boiling Methods 0.000 title claims abstract description 76
- 239000011521 glass Substances 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 31
- 239000010935 stainless steel Substances 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000000007 visual effect Effects 0.000 claims abstract description 5
- 230000006399 behavior Effects 0.000 claims description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 238000002309 gasification Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000012800 visualization Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel nitride Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- 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
- G01N2021/8405—Application to two-phase or mixed materials, e.g. gas dissolved in liquids
Landscapes
- 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)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a general high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior, which comprises a boiling tank main body, an ITO conductive glass heating system, a constant-temperature constant-pressure control system and the like; the pool boiling main body comprises a stainless steel boiling pool and a plurality of visual windows arranged on the side wall of the pool boiling main body; the ITO conductive glass heating system is arranged at the central position of the stainless steel boiling pool and used for generating boiling bubbles for observation; the high-speed camera system and the optical fiber probe system are combined in different measurement modes by using the laser source and the reflective glass to observe the parameters of the bubbles on the heating wall surface; the temperature acquisition system is used for measuring the temperature of the measured fluid and the wall surface temperature of the conductive glass; the constant temperature and constant pressure control system is used for keeping the constant temperature and constant pressure state in the stainless steel boiling pool. The invention can realize the universality of various working media, and can simultaneously observe the near-wall bubble by combining a multi-azimuth visualization technology and various measurement technologies under the high-pressure condition, thereby accurately obtaining the near-wall bubble behavior and parameters.
Description
Technical Field
The invention belongs to the field of vapor-liquid two-phase flow and heat transfer experimental research, and particularly relates to a general high-pressure tank boiling experimental device for comprehensively observing near-wall surface vapor bubble behaviors.
Background
Boiling is often associated with many industrial facilities such as boilers, steam generators, nuclear reactor cores, and the like. In these devices, because of the large heat flux density, the sub-cool boiling limit is likely to occur in some cases. The behavior of the bubble near the heating wall is a key factor for studying the critical of supercooling boiling, but the bubble growth process of the heating surface is measured directly in these devices, and the bubble detachment diameter and the interaction between the bubble and the wall are very difficult.
These near-wall bubble behaviors and parameters are difficult to obtain through theoretical calculation, and experimental measurement is the only reliable way, which is also a difficult point in the technical field of two-phase measurement, especially measurement under high temperature and high pressure conditions. The existing bubble parameter measuring means mainly comprise a high-speed photography method, an optical fiber probe method, a ray attenuation method and the like.
However, in the past, these measurement methods are usually performed separately, and the characteristic parameters of the bubbles on the heating surface during boiling cannot be measured accurately, and in the past, the experiment for measuring the bubble characteristics is performed based on air-water under normal pressure and low pressure conditions, and the characteristics of the growth and evolution of the boiling bubbles under high pressure cannot be obtained accurately. In the process of thermal hydraulic experiments, it is always desirable to know how the steam bubbles generated when the working medium boils under higher pressure change near the wall surface and how the behavior characteristics change, which is significant in the research of two-phase boiling.
Disclosure of Invention
The invention aims to provide a universal high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behavior. The invention can realize the universality of various working media, and can simultaneously observe the near-wall bubble by combining a multi-azimuth visualization technology and various measurement technologies under the high-pressure condition, thereby accurately obtaining the near-wall bubble behavior and parameters.
The purpose of the invention is realized by the following technical scheme:
a universal high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behaviors comprises a boiling pool main body, an ITO conductive glass heating system, a high-speed camera system, an optical fiber probe system, a temperature acquisition system and a constant-temperature constant-pressure control system;
the pool boiling main body comprises a stainless steel boiling pool and a plurality of visual windows arranged on the side wall of the pool boiling main body;
the ITO conductive glass heating system is arranged at the central position of the stainless steel boiling pool and used for generating boiling bubbles for observation;
the high-speed camera system, the optical fiber probe system and the laser system consisting of the laser source and the reflecting glass are combined in different measurement modes to observe the parameters of the bubbles on the heating wall surface;
the temperature acquisition system is used for measuring the temperature of the measured fluid and the wall surface temperature of the conductive glass;
the constant temperature and constant pressure control system is used for keeping the constant temperature and constant pressure state in the stainless steel boiling pool.
The stainless steel boiling pool comprises a cylindrical barrel, and an ellipsoidal upper end enclosure and a planar lower end enclosure which are respectively connected to the upper part and the lower part of the cylindrical barrel.
The invention is further improved in that the ITO conductive glass heating system comprises ITO conductive glass, a conductive fixing frame, a pressing elastic sheet and a pressing spring,
the ITO conductive glass is arranged between the front ends of the two symmetrically arranged conductive fixing frames, the rear ends of the conductive fixing frames extend out of the stainless steel boiling pool, grooves are formed in the front ends of the conductive fixing frames, one side of a film coated on the ITO conductive glass is tightly attached to the surfaces of the grooves of the conductive fixing frames, and the other side of the film coated on the ITO conductive glass is tightly pressed and fixed with the grooves through the pressing elastic pieces and the pressing springs.
The invention is further improved in that a single gasification core is etched in the center of one surface of the ITO conductive glass coating film so as to generate isolated bubbles for detection.
A further improvement of the invention is that the high speed camera system comprises a high speed camera and a collimated light source arranged at 180 deg. to photograph the bubble from both the side and front.
The invention is further improved in that the laser source is arranged on a back window parallel to the heating surface, and the thickness and the shape of a liquid film between the vapor bubble and the wall surface in the growth process of the vapor bubble are obtained by shooting a laser interference image through the reflection glass and the high-speed camera amplifying lens.
The invention is further improved in that the optical fiber probe system comprises a high-temperature and high-pressure resistant optical fiber probe, and corresponding photoelectric conversion devices and signal processing devices, which are used for measuring bubble parameters from the front and the side close to the wall surface.
The invention has the further improvement that the temperature acquisition system comprises a T-shaped armored thermocouple for measuring fluid, a thermocouple wire for measuring the wall temperature of the conductive glass and a corresponding NI acquisition device; the T-shaped armored thermocouple is arranged in a fluid area near the heating surface and measures the temperature of the fluid in the area near the heating surface; a small hole is formed in the side, not coated with the film, of the ITO conductive glass, and is 1mm away from the surface of the coated film, and the small hole is used for packaging a thermocouple wire to measure and calculate the temperature of the wall surface; all thermocouple signals are collected, converted and input into a computer in real time through an NI collecting device, and real-time temperature monitoring is achieved.
The invention has the further improvement that the constant temperature and pressure control system comprises a preheater, a condenser and a nitrogen pressure stabilizer; the preheater preheats working medium in the stainless steel boiling pool in earlier stage, and the cooperation condenser makes working medium stabilize at required temperature in the stainless steel boiling pool, and pressure is controlled through the nitrogen gas stabiliser that even has the manometer in the stainless steel boiling pool, keeps the basically stable constant temperature and constant pressure state in the stainless steel boiling pool.
The invention has at least the following beneficial technical effects:
the invention provides a general high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behavior, which has the following innovations:
(1) the experimental device capable of measuring the near-wall bubble parameters in all directions is provided, bubble observation is realized under the boiling of a high-temperature high-pressure pool, and various working media are universal;
(2) transparent ITO glass is adopted for heating, so that shooting can be performed on the back of the heating surface, and multi-angle visualization is realized;
(3) the thickness of the micro-liquid film between the bubble and the wall surface is obtained through probe measurement, high-speed camera shooting phenomenon and laser interference, and bubble parameters and behavior characteristics of the surface of the heating surface are accurately obtained through combination of multiple modes. The prior art is reasonably used, the combination of local parameter measurement and visualization is realized, and the behavior characteristics of the near-wall surface bubbles are more accurately acquired.
Drawings
FIG. 1 is a schematic view of a main body of a device for observing bubbles on a pool boiling heating surface according to an embodiment of the present invention;
FIG. 2 is a schematic view of an ITO glass conductive heating device in a pool provided by an embodiment of the invention;
fig. 3 is a schematic layout of a heated surface bubble measurement apparatus according to an embodiment of the present invention.
Description of reference numerals:
the device comprises a stainless steel boiling pool 1, a visualization window 2, ITO conductive glass 3, a conductive fixing frame 4, a compression elastic sheet 5, a compression spring 6, a high-speed camera 7, a parallel light source 8, a laser source 9, a reflective glass 10, a high-temperature and high-pressure resistant optical fiber probe 11, a sheathed thermocouple 12-T, a thermocouple wire 13, a preheater 14, a condenser 15 and a nitrogen pressure stabilizer 16.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a general high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behaviors, and fig. 1 is a schematic structural diagram of a main body of the experimental device and is used for describing the composition and structural arrangement of the device. The device mainly comprises a boiling pool main body, an ITO conductive glass heating system, a high-speed camera system, an optical fiber probe system, a laser source 9, a reflecting glass 10, a temperature acquisition system and a constant temperature and constant pressure control system.
The pool boiling body comprises a stainless steel boiling pool 1 and four visualization windows 2 thereon. The stainless steel boiling pool 1 consists of a cylindrical barrel, an ellipsoidal upper end enclosure and a planar lower end enclosure, wherein the ellipsoidal upper end enclosure is welded with the barrel, and the planar lower end enclosure is connected with the barrel in a flange sealing manner. Optionally, the wall thickness of the cylindrical barrel and the ellipsoidal upper end enclosure is 6-10mm, the wall thickness of the planar lower end enclosure is 25-40mm, and the designed pressure resistance of the boiling pool can reach 10 MPa; and four visual windows 2 are arranged on the cylindrical barrel body at intervals of 90 degrees. The visual window 2 is made of pressure-resistant glass and is hermetically connected with the cylindrical barrel body through a flange. The glass of either visualization window 2 can be replaced by a flat steel plate to facilitate the insertion of the probe through the opening.
The ITO conductive glass heating system is arranged at the central position of the stainless steel boiling pool 1 to generate boiling bubbles for observation. Fig. 2 is a schematic structural diagram of an ITO conductive glass heating system, which is used for describing a structure in which ITO conductive glass is fixedly arranged in a stainless steel boiling pool 1, and includes an ITO conductive glass 3, a conductive fixing frame 4, a pressing elastic sheet 5 and a pressing spring 6. The ITO conductive glass 3 is made of pressure-resistant glass, one side of a coated film is tightly attached to the surface of the conductive fixing frame 4, and the other side of the coated film is tightly pressed and fixed by the pressing elastic sheet 5 and the pressing spring 6, so that the glass is prevented from being extruded and cracked due to different thermal expansion properties of materials. The conductive fixing frame 4 can select copper or platinum according to the properties of working media, and the rear end of the conductive fixing frame 4 extends out of the cylindrical barrel of the stainless steel boiling pool 1 and is sealed with the cylindrical barrel in an insulating way by a clamping sleeve. The center of one side of the ITO conductive glass 3 coated film is etched with a single gasification core to generate isolated bubbles for detection.
The high-speed camera system, the optical fiber probe system, the laser source 9 and the reflecting glass 10 are used as different measurement modes to be combined to observe parameters of bubbles on the heating wall surface. Fig. 3 is a schematic diagram of an arrangement structure of each measurement system, and is used for describing the arrangement of each measurement system in an experiment. The high-speed camera system comprises a high-speed camera 7, a parallel light source 8, a corresponding signal transmission line and a computer, wherein the high-speed camera 7 and the parallel light source 8 are arranged at an angle of 180 degrees and can shoot boiling bubbles from the side and the front; the optical fiber probe system comprises a high-temperature and high-pressure resistant optical fiber probe 11, a corresponding photoelectric conversion device, a signal processing device and a computer, bubble parameters are measured by pressing close to the wall surface from the front and the side surface, corresponding window glass is replaced by a sealing steel plate when the high-temperature and high-pressure resistant optical fiber probe 11 is used, and the high-temperature and high-pressure resistant optical fiber probe 11 and the steel plate are in sealing connection by using a clamping sleeve structure; the laser source 9 is arranged on a back window parallel to the heating surface, and the thickness and the shape of a liquid film between the vapor bubble and the wall surface in the growth process of the vapor bubble are obtained by shooting a laser interference image through the reflecting glass 10 and the high-speed camera 7 magnifying lens.
The temperature acquisition system comprises a T-shaped armored thermocouple 12 for measuring the use of fluid, a thermocouple wire 13 for measuring the temperature of the wall surface of conductive glass, a corresponding NI acquisition device and a computer. A T-type sheathed thermocouple 12 is arranged in the fluid region near the heating surface and measures the temperature of the fluid in the region near the heating surface; a small hole is formed in the non-coated side of the ITO conductive glass 3, is 1mm away from the coated surface and is used for packaging a thermocouple wire 13 to measure and calculate the wall surface temperature; all thermocouple signals are collected, converted and input into a computer in real time through an NI collecting device, and real-time temperature monitoring is achieved.
The constant temperature and pressure control system comprises a preheater 14, a condenser 15 and a nitrogen pressure stabilizer 16. The preheater 14 preheats the working medium in the stainless steel boiling pool 1 in earlier stage, and the cooperation condenser 15 makes the working medium stabilize at required temperature in the stainless steel boiling pool 1, and the pressure is controlled through the nitrogen gas stabiliser 16 who even has the manometer in the stainless steel boiling pool 1, keeps the basically stable constant temperature and pressure state in the stainless steel boiling pool 1.
The universal high-pressure pool boiling experimental device capable of observing the near-wall surface bubble behavior in all directions, provided by the invention, can be used for simultaneously detecting through three detection modes and synchronously acquiring signals through NI (nickel nitride) to perform comparative analysis to obtain accurate heating wall surface bubble parameters and behavior characteristics, and can be used for separately detecting and researching the influence of an invasive detection on bubbles.
The embodiment of the invention optimizes the measurement of bubbles on the boiling heating surface of the pool under high pressure, realizes the observation of near-wall bubble parameters and behavior characteristics under high pressure by combining three observation means, and solves the problem that the wall bubble parameters and behaviors can not be accurately measured due to back shielding of a conventional boiling surface.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A universal high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behavior is characterized by comprising a boiling pool main body, an ITO conductive glass heating system, a high-speed camera system, an optical fiber probe system, a temperature acquisition system and a constant-temperature constant-pressure control system;
the pool boiling main body comprises a stainless steel boiling pool (1) and a plurality of visual windows (2) arranged on the side wall of the pool boiling main body;
the ITO conductive glass heating system is arranged at the central position of the stainless steel boiling pool (1) and used for generating boiling bubbles for observation;
the high-speed camera system, the optical fiber probe system and the laser system consisting of the laser source (9) and the reflecting glass (10) are combined in different measurement modes to observe the parameters of the bubbles on the heating wall surface;
the temperature acquisition system is used for measuring the temperature of the measured fluid and the wall surface temperature of the conductive glass;
the constant temperature and pressure control system is used for keeping the constant temperature and pressure state in the stainless steel boiling pool (1).
2. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behavior is characterized in that the stainless steel boiling pool (1) comprises a cylindrical barrel, and an ellipsoidal upper end enclosure and a planar lower end enclosure which are respectively connected to the upper part and the lower part of the cylindrical barrel.
3. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall surface bubble behavior is characterized in that an ITO conductive glass heating system comprises ITO conductive glass (3), a conductive fixing frame (4), a pressing elastic sheet (5) and a pressing spring (6),
the ITO conductive glass (3) is arranged between the front ends of two symmetrically arranged conductive fixing frames (4), the rear ends of the conductive fixing frames (4) extend out of the stainless steel boiling pool (1), grooves are formed in the front ends of the conductive fixing frames (4), one side of a coated film of the ITO conductive glass (3) is tightly attached to the surfaces of the grooves of the conductive fixing frames (4), and the other side of the coated film of the ITO conductive glass (3) is pressed and fixed between the coated film and the grooves by a pressing elastic sheet (5) and a pressing spring (6).
4. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behavior is characterized in that a single gasification core is etched in the center of one side of an ITO conductive glass (3) coating film to generate isolated bubbles for detection.
5. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behaviors is characterized in that a high-speed camera system comprises a high-speed camera (7) and a parallel light source (8) which are arranged at an angle of 180 degrees, and bubbles are shot from the side and the front.
6. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behavior is characterized in that a laser source (9) is arranged on a back window parallel to a heating surface, and the thickness and the shape of a liquid film between a bubble and a wall surface in the bubble growth process are acquired by shooting a laser interference image through a reflecting glass (10) and a high-speed camera (7) magnifying lens.
7. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behavior is characterized in that the optical fiber probe system comprises a high-temperature and high-pressure resistant optical fiber probe (11), and corresponding photoelectric conversion devices and signal processing devices, which are used for measuring bubble parameters by being attached to the wall surface from the front and the side.
8. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behavior is characterized in that the temperature acquisition system comprises a T-shaped armored thermocouple (12) for measuring fluid, a thermocouple wire (13) for measuring the wall temperature of conductive glass, and a corresponding NI acquisition device; a T-shaped sheathed thermocouple (12) is arranged in the fluid region near the heating surface and measures the temperature of the fluid in the region near the heating surface; a small hole is formed in the side, not coated with the film, of the ITO conductive glass (3), and the distance between the small hole and the coated surface is 1mm, and the small hole is used for packaging a thermocouple wire (13) to measure and calculate the wall surface temperature; all thermocouple signals are collected, converted and input into a computer in real time through an NI collecting device, and real-time temperature monitoring is achieved.
9. The universal high-pressure pool boiling experimental device for omnibearing observation of near-wall bubble behavior is characterized in that a constant-temperature and constant-pressure control system comprises a preheater (14), a condenser (15) and a nitrogen pressure stabilizer (16); working medium preheats in the stainless steel boiling pond (1) in earlier stage in pre-heater (14), and cooperation condenser (15) make working medium stabilize at required temperature in stainless steel boiling pond (1), and stainless steel boiling pond (1) internal pressure is controlled through nitrogen gas stabiliser (16) that even has the manometer, keeps basic stable constant temperature and constant pressure state in stainless steel boiling pond (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518328.9A CN114235802A (en) | 2021-12-13 | 2021-12-13 | Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518328.9A CN114235802A (en) | 2021-12-13 | 2021-12-13 | Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114235802A true CN114235802A (en) | 2022-03-25 |
Family
ID=80755273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111518328.9A Pending CN114235802A (en) | 2021-12-13 | 2021-12-13 | Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114235802A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115824895A (en) * | 2022-11-07 | 2023-03-21 | 中国核动力研究设计院 | Visual test device and method for dynamic bubble adhesion measurement and application |
| CN116182937A (en) * | 2022-12-14 | 2023-05-30 | 中国科学院空间应用工程与技术中心 | Experimental device for be used for studying space pool boiling phenomenon |
| CN116864172A (en) * | 2023-09-04 | 2023-10-10 | 哈尔滨工程大学 | Experiment method for hydraulic characteristics of solution Chi Regong under irradiation-like environment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280416A (en) * | 2014-10-11 | 2015-01-14 | 哈尔滨工程大学 | All-dimensional visual pool type boiling experiment device |
| KR20200089958A (en) * | 2019-01-18 | 2020-07-28 | 울산과학기술원 | Detecting apparatus and method for boiling behaviors |
-
2021
- 2021-12-13 CN CN202111518328.9A patent/CN114235802A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280416A (en) * | 2014-10-11 | 2015-01-14 | 哈尔滨工程大学 | All-dimensional visual pool type boiling experiment device |
| KR20200089958A (en) * | 2019-01-18 | 2020-07-28 | 울산과학기술원 | Detecting apparatus and method for boiling behaviors |
Non-Patent Citations (1)
| Title |
|---|
| SATBYOUL JUNG AND HYUNGDAE KIM: "An experimental method to simultaneously measure the dynamics and heat transfer associated with a single bubble during nucleate boiling on a horizontal surface", INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, vol. 73, 12 March 2014 (2014-03-12), pages 365 - 375, XP028846770, DOI: 10.1016/j.ijheatmasstransfer.2014.02.014 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115824895A (en) * | 2022-11-07 | 2023-03-21 | 中国核动力研究设计院 | Visual test device and method for dynamic bubble adhesion measurement and application |
| CN115824895B (en) * | 2022-11-07 | 2024-01-30 | 中国核动力研究设计院 | Visual test device and method for measuring dynamic bubble adhesion force and application |
| CN116182937A (en) * | 2022-12-14 | 2023-05-30 | 中国科学院空间应用工程与技术中心 | Experimental device for be used for studying space pool boiling phenomenon |
| CN116864172A (en) * | 2023-09-04 | 2023-10-10 | 哈尔滨工程大学 | Experiment method for hydraulic characteristics of solution Chi Regong under irradiation-like environment |
| CN116864172B (en) * | 2023-09-04 | 2023-11-21 | 哈尔滨工程大学 | Experiment method for hydraulic characteristics of solution Chi Regong under irradiation-like environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114235802A (en) | Universal high-pressure tank boiling experimental device for omnibearing observation of near-wall surface bubble behavior | |
| CN107255454B (en) | A kind of multiple dimensioned multi-functional strain measurement system of superhigh temperature based on ultraviolet imagery DIC and measurement method | |
| CN113063341B (en) | Device and method for three-dimensional real-time measurement of thickness of annular flow liquid film and interfacial wave | |
| CN104458204B (en) | Testing and measuring system for unstable-state flow heat transfer visualization research | |
| CN103994803A (en) | Heat pipe liquid absorbing core capillary flow measuring method and device based on infrared image observation | |
| CN101995485A (en) | Target fiber grating rheometer | |
| CN111189552B (en) | Methane hydrate flame temperature testing device and temperature measurement correction method | |
| Bergman et al. | Miniature fiber‐optic refractometer for measurement of salinity in double‐diffusive thermohaline systems | |
| CN108845032A (en) | A kind of boiler water-wall tube hydrogen damage ultrasonic detection method | |
| CN204269342U (en) | A kind of measurement mechanism of optical fiber image transmission beam both ends of the surface pixel side-play amount | |
| Li et al. | Numerical investigation of multi-beam laser heterodyne measurement with ultra-precision for linear expansion coefficient of metal based on oscillating mirror modulation | |
| CN105954193A (en) | Fiber grating hydrogen detection device with light-radiation heating self compensation function | |
| CN109839211B (en) | Distributed optical fiber water body temperature and flow velocity distribution measuring device | |
| CN104359654A (en) | Device and method for measuring offset of picture elements of two end faces of optical fiber image transmitting beam | |
| Wang et al. | Ultrasonic Waveguide Transducer for Under-Sodium Viewing in SFR | |
| CN209764199U (en) | Liquid level measuring device based on distributed optical fiber sensing | |
| Petukhov et al. | Investigation of the mechanism of heat transfer upon film boiling of liquid | |
| Bencs et al. | Simultaneous measurement of velocity and temperature field in the downstream region of a heated cylinder | |
| CN103954645B (en) | The device and method of linear frequency modulation double light beam laser heterodyne measurement expansion coefficients of metal wire | |
| John et al. | Ultrasonic measurement of temperature distributions in extreme environments: Electrical power plants testing in utility-scale steam generators | |
| Walunj et al. | Effect of surface roughness on pool boiling characteristics under variable heat supply | |
| Kicska et al. | Vapor Condensation in a Shock Tube; Condensation Coefficient for sec‐Butyl Alcohol | |
| Dong et al. | Comparison of photothermal responses under spatial and temporal modulations of CW Gaussian beam excitation: A numerical study | |
| Delhaye et al. | Instrumentation in boiling and condensation studies | |
| CN117889899A (en) | Multi-physical-field parameter conductance probe measurement system for high-temperature liquid metal multiphase fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |