CN114018973A - Annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiment - Google Patents
Annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiment Download PDFInfo
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- CN114018973A CN114018973A CN202111310346.8A CN202111310346A CN114018973A CN 114018973 A CN114018973 A CN 114018973A CN 202111310346 A CN202111310346 A CN 202111310346A CN 114018973 A CN114018973 A CN 114018973A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 22
- 238000012546 transfer Methods 0.000 title claims abstract description 19
- 238000012800 visualization Methods 0.000 title claims abstract description 12
- 230000003534 oscillatory effect Effects 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 38
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 description 17
- 230000005514 two-phase flow Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
- G01N25/20—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
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to an annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiments, which mainly comprises a cooling oil cavity, a base, a heating assembly, a heat insulation plate, an aluminum alloy plate and a thermocouple hole, wherein a gas-liquid two-phase medium can be placed in the cooling oil cavity, the aluminum alloy plate is used for heat conduction and fixation, and the thermocouple hole is used for placing a thermocouple.
Description
Technical Field
The invention relates to an annular piston oil cavity experimental part for an oscillation heat transfer and visualization experiment.
Background
The existing piston oil cavity experimental part is mostly used for constant temperature oscillation experiments, the shape of an oil cavity is mostly a cube or a cylinder, and the visual observation of the change of gas phase and liquid phase in the experimental process can not be carried out, so that the experimental research of two-phase flow oscillation is influenced, and the experimental observation in a variable temperature environment can not be finished.
The chinese utility model patent with application numbers 201921023939.4 and 201721068868.0 respectively discloses a two-phase flow oscillation experimental apparatus, wherein the piston oil cavity test piece can be used for visual observation experiment and heat transfer measurement experiment, but the piston test piece is of a cubic structure, does not conform to the shape of the true piston cooling oil cavity, and can not fully simulate the two-phase flow oscillation flowing process.
Disclosure of Invention
In order to solve the problems, the invention provides an annular piston oil cavity experimental part for oscillatory heat transfer and visualization experiments, which is more consistent with the shape of a real piston cooling oil cavity and can synchronously carry out the oscillatory heat transfer experiments and the visualization experiments.
The invention adopts the following technical scheme: the utility model provides an annular piston oil pocket experimental part for oscillating heat transfer and visual experiment which characterized in that: the base is in threaded connection with a first aluminum alloy plate through a threaded connection rod, a cooling oil cavity is formed in the first aluminum alloy plate, the cross section of the cooling oil cavity is oval, the cooling oil cavity is formed by sealing an oil cavity upper cavity, an oil cavity lower cavity, an oil cavity outer side wall, an oil cavity inner side wall, a first cooling oil cavity and a second cooling oil cavity, the cooling oil cavity is fixedly installed between the first aluminum alloy plate and a second aluminum alloy plate through a mechanical screw, a heating assembly is arranged on the second aluminum alloy plate and comprises a first heating sheet and a second heating sheet, and the heating assembly is fixedly installed between the second aluminum alloy plate and a heat insulation plate through the mechanical screw and a rectangular metal gasket.
A plurality of first internal thermocouple holes with fixed depth are uniformly arranged on the upper cavity of the oil cavity close to the upper edge.
And a plurality of second internal thermocouple holes with fixed depth are uniformly arranged at the lower edge of the lower cavity of the oil cavity close to the lower edge.
And a plurality of first outer thermocouple holes and second outer thermocouple holes which are communicated are respectively arranged on the inner side wall of the oil cavity close to the upper edge and the lower edge.
The first inner thermocouple hole, the first outer thermocouple hole, the second inner thermocouple hole and the second outer thermocouple hole are equal in number and diameter, the hole coaxiality is respectively and correspondingly fixed and installed, and high-temperature-resistant sealing transparent glue is coated at the contact position of the surface and the surface.
The oil cavity upper cavity and the oil cavity lower cavity are made of high-temperature-resistant transparent materials with excellent heat conductivity.
The outer side wall and the inner side wall of the oil cavity are made of high-temperature-resistant transparent materials with extremely poor heat conducting performance.
The upper surface and the lower surface of the cooling oil cavity are tightly attached to the lower surface of the second aluminum alloy plate and the upper surface of the first aluminum alloy plate respectively, and high-temperature-resistant sealing transparent glue is coated at the edge gap of the attachment.
And an oil filling hole is formed in the upper end of the seal of the first cooling oil cavity and is sealed through an oil plug.
The heat insulation plate is provided with three threaded through holes which are uniformly distributed and have the same diameter.
And two ends of the second aluminum alloy plate are respectively provided with three threaded through holes, and the middle of the second aluminum alloy plate is provided with a threaded hole with fixed depth.
Two ends of the first aluminum alloy plate are respectively provided with two threaded through holes, and the middle of the first aluminum alloy plate is provided with a threaded hole with larger diameter and fixed depth.
The base both ends be equipped with a screw thread through-hole respectively, the centre is equipped with a screw hole of depthkeeping, screw thread through-hole for the screw hole symmetric distribution of depthkeeping.
The invention has the following beneficial effects: before the annular piston oil cavity experimental piece for the oscillation heat transfer and visualization experiment is used, a base and an oscillation device are in threaded connection through bolts or mechanical screws, and a thermocouple temperature sensor is placed in a thermocouple hole so as to measure the temperature of the upper surface and the lower surface of a cooling oil cavity.
The invention can carry out the oscillation heat transfer experiment and the visual experiment at the same time, can fully simulate the oscillation flowing process of the two-phase flow and carry out the visual observation on the oscillation flowing process, and simultaneously measure the oscillation heat transfer effect of the two-phase flow through the built-in thermocouple temperature sensor, the section of the piston cooling oil cavity is elliptical, the invention is more in line with the real shape of the piston cooling oil cavity, the gas-liquid two-phase medium can be stored in the piston cooling oil cavity, and the working efficiency is greatly improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a top view of the present invention.
Fig. 5 is a schematic view of the oil chamber upper chamber.
Fig. 6 is a schematic view of the lower oil gallery chamber.
FIG. 7 is a schematic view of an interior oil chamber wall.
FIG. 8 is a schematic view of the outer oil chamber wall.
FIG. 9 is a schematic view of a first aluminum alloy sheet.
FIG. 10 is a schematic view of a second aluminum alloy sheet.
Figure 11 is a schematic view of an insulating panel.
FIG. 12 is a schematic view of a first cooling gallery seal.
Reference numerals: 1, a base; 2 a first aluminum alloy sheet; 3 a second aluminum alloy plate; 4 sealing the first cooling oil cavity; 5 sealing the second cooling oil cavity; 6 a rectangular metal gasket; 7, insulating boards; 8, the outer side wall of the oil cavity; 9 inner side wall of oil chamber; 10 cooling the oil cavity; 11 a first heating plate; 12 a second heating plate; 13 oil plugs; 14 oil holes; 15 oil cavity upper chamber; 16 oil cavity lower cavities; 17 a threaded connecting rod; 100 a first outer thermocouple well; 200 a second outer thermocouple hole; 101 a first internal thermocouple well; 201 second inner thermocouple well.
Detailed Description
The present invention is further described below in conjunction with the appended drawings, it being understood that the following detailed description is illustrative of the invention only and is not intended to limit the scope of the invention.
As shown in fig. 1 to 12, the present invention comprises a base 1, said base 1 is screw-connected with a first aluminum alloy plate 2 by a screw connection rod 17, the first aluminum alloy plate 2 is provided with a cooling oil chamber 10, the section of the cooling oil cavity 10 is oval, and comprises an oil cavity upper cavity 15, an oil cavity lower cavity 16, an oil cavity outer side wall 8, an oil cavity inner side wall 9, a first cooling oil cavity seal 4 and a second cooling oil cavity seal 5, the upper end of the first cooling oil cavity seal 4 is provided with an oil filling hole 14, sealed by an oil plug 13, the cooling oil cavity 10 is fixedly arranged between the first aluminum alloy plate 2 and the second aluminum alloy plate 3 by a machine screw, the second aluminum alloy plate 3 is provided with a heating component which comprises a first heating sheet 11 and a second heating sheet 12, and is fixedly arranged between the second aluminum alloy plate 3 and the heat insulation plate 7 through a mechanical screw and a rectangular metal gasket 6.
The base 1 both ends be equipped with a screw thread through-hole respectively, the centre is equipped with the screw hole of depthkeeping, screw thread through-hole for the screw hole symmetric distribution of depthkeeping.
The oil cavity upper cavity 15 and the oil cavity lower cavity 16 are made of high-temperature-resistant transparent materials with excellent heat conductivity, so that the heat generated by the heating assembly can be conveniently observed and smoothly transferred into the cooling oil cavity 10.
The outer oil cavity wall 8 and the inner oil cavity wall 9 are made of high-temperature-resistant transparent materials with extremely poor heat conduction performance, so that direct contact between the upper oil cavity 15 and the lower oil cavity 16 is blocked, and the function of preventing heat overflow is achieved.
A plurality of first internal thermocouple holes 101 with fixed depth are uniformly arranged on the upper oil cavity chamber 15 close to the upper edge.
A plurality of second thermocouple holes 201 with fixed depth are uniformly arranged at the lower edge of the oil cavity lower cavity 16.
The inner wall 9 of the oil cavity is provided with a plurality of first outer thermocouple holes 100 and second outer thermocouple holes 200 which are communicated with each other and are close to the upper edge and the lower edge respectively.
The first inner thermocouple hole 101, the first outer thermocouple hole 100, the second inner thermocouple hole 201 and the second outer thermocouple hole 200 are equal in number and diameter, the hole coaxiality is respectively and correspondingly fixed and installed, and high-temperature-resistant sealing transparent glue is coated at the contact position of the surface and the surface.
The upper surface and the lower surface of the cooling oil cavity 10 are tightly attached to the lower surface of the second aluminum alloy plate 3 and the upper surface of the first aluminum alloy plate 2 respectively, and high-temperature-resistant sealing transparent glue is coated at the edge gap of the attachment.
The heat insulation plate 7 is provided with three threaded through holes which are uniformly distributed and have the same diameter.
And two ends of the second aluminum alloy plate 3 are respectively provided with three threaded through holes, and the middle of the second aluminum alloy plate is provided with a threaded hole with fixed depth.
Two ends of the first aluminum alloy plate 2 are respectively provided with two threaded through holes, and the middle of the first aluminum alloy plate is provided with a threaded hole with larger diameter and fixed depth.
The invention has the following beneficial effects: before the annular piston oil cavity experimental piece for the oscillation heat transfer and visualization experiment is used, a base 1 and an oscillation device are in threaded connection through bolts or mechanical screws, and a thermocouple temperature sensor is placed in a thermocouple hole so as to measure the temperature of the upper surface and the lower surface of a cooling oil cavity.
The invention can carry out the oscillation heat transfer experiment and the visual experiment at the same time, can fully simulate the oscillation flowing process of the two-phase flow and carry out the visual observation on the oscillation flowing process, and simultaneously measure the oscillation heat transfer effect of the two-phase flow through the built-in thermocouple temperature sensor, the section of the piston cooling oil cavity is elliptical, the invention is more in line with the real shape of the piston cooling oil cavity, the gas-liquid two-phase medium can be stored in the piston cooling oil cavity, and the working efficiency is greatly improved.
It should be noted that: in the present invention, the term "screw hole of a constant depth" is understood to mean a non-through screw hole having a certain depth, and the term "a plurality of screw holes" is understood to mean an indefinite number, and may be provided as required.
Claims (5)
1. The utility model provides an annular piston oil pocket experimental part for oscillating heat transfer and visual experiment which characterized in that: the cooling oil cavity (10) is composed of an oil cavity upper cavity (15), an oil cavity lower cavity (16), an oil cavity outer side wall (8), an oil cavity inner side wall (9), a first cooling oil cavity seal (4) and a second cooling oil cavity seal (5), the cross section of the cooling oil cavity (10) is oval, the cooling oil cavity (10) is fixedly arranged between the first aluminum alloy plate (2) and the second aluminum alloy plate (3) through mechanical screws, the heating component comprises a first heating sheet (11) and a second heating sheet (12), and the heating component is fixedly arranged between the second aluminum alloy plate (3) and the heat insulation plate (7) through the mechanical screws and the rectangular metal gasket (6), the base (1) is in threaded connection with the first aluminum alloy plate (2) through a threaded connecting rod (17).
2. The annular piston oil chamber test piece for oscillatory heat transfer and visualization experiments as claimed in claim 1, wherein: the high-temperature-resistant oil chamber is characterized in that a plurality of first inner thermocouple holes (101) with fixed depth are uniformly arranged at the position, close to the upper edge, of the upper oil chamber cavity (15), a plurality of second inner thermocouple holes (201) with fixed depth are uniformly arranged at the position, close to the lower edge, of the lower oil chamber cavity (16), a plurality of first outer thermocouple holes (100) and second outer thermocouple holes (200) which are communicated are respectively arranged at the position, close to the upper edge and the lower edge, of the inner oil chamber side wall (9), the number and the hole diameters of the first inner thermocouple holes (101) and the first outer thermocouple holes (100), the number and the hole diameters of the second inner thermocouple holes (201) and the second outer thermocouple holes (200) are equal, the hole coaxiality is respectively and fixedly installed correspondingly, high-temperature-resistant sealing transparent glue is coated at the contact position of the surface and the surface, the upper oil chamber (15) and the lower oil chamber (16) are made of high-temperature-resistant transparent materials with excellent thermal conductivity, and the outer side wall (8) and the inner side wall (9) of the oil chamber are made of high-temperature-resistant transparent materials with extremely poor thermal conductivity, an oil filling hole (14) is formed in the upper end of the first cooling oil cavity seal (4) and is sealed through an oil plug (13).
3. The annular piston oil chamber test piece for oscillatory heat transfer and visualization experiments as claimed in claim 1, wherein: the heat insulation plate (7) is provided with three threaded through holes which are uniformly distributed and have the same diameter.
4. The annular piston oil chamber test piece for oscillatory heat transfer and visualization experiments as claimed in claim 1, wherein: second aluminium alloy plate (3) both ends be equipped with three screw thread through-hole respectively, the centre is equipped with the screw hole of a depthkeeping, first aluminium alloy plate (2) both ends be equipped with two screw thread through-holes respectively, the centre is equipped with the screw hole of the great depthkeeping of a diameter.
5. The annular piston oil chamber test piece for oscillatory heat transfer and visualization experiments as claimed in claim 1, wherein: the base (1)) is provided with a threaded through hole at each end, a fixed-depth threaded hole is arranged in the middle, and the threaded through holes are symmetrically distributed relative to the fixed-depth threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310346.8A CN114018973A (en) | 2021-11-08 | 2021-11-08 | Annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310346.8A CN114018973A (en) | 2021-11-08 | 2021-11-08 | Annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiment |
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| Publication Number | Publication Date |
|---|---|
| CN114018973A true CN114018973A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310346.8A Pending CN114018973A (en) | 2021-11-08 | 2021-11-08 | Annular piston oil cavity experimental piece for oscillatory heat transfer and visualization experiment |
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| CN (1) | CN114018973A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2176837A1 (en) * | 1994-09-30 | 1996-04-11 | Gerard Moracchini | Device for dertermining on an active site sample characteristics of for example petroleum fluids |
| CN102032991A (en) * | 2010-11-16 | 2011-04-27 | 北京理工大学 | Engine piston oscillating and cooling test device |
| CN104458498A (en) * | 2014-11-25 | 2015-03-25 | 浙江大学 | Internally-cooled piston with detachable oil cavity inner core |
| CN105938049A (en) * | 2016-07-11 | 2016-09-14 | 滨州学院 | Dynamic visual targeting test platform and test method |
| CN110057859A (en) * | 2019-03-18 | 2019-07-26 | 昆明理工大学 | A kind of simulator and test method of oil duct in piston oscillating heat transfer performance |
| CN110207991A (en) * | 2019-06-25 | 2019-09-06 | 哈尔滨工程大学 | Cooling oil duct Oscillation Flows visual Simulation device in crosshead diesel engine piston |
| CN111060557A (en) * | 2020-01-17 | 2020-04-24 | 南京航空航天大学 | Axial rotation oscillating heat pipe test device and use method thereof |
| CN210626380U (en) * | 2019-07-03 | 2020-05-26 | 河北科技大学 | Two-phase flow oscillation experimental device |
| WO2021031699A1 (en) * | 2019-08-20 | 2021-02-25 | 大连海事大学 | Liquid metal high-temperature pulsating heat pipe and testing method |
-
2021
- 2021-11-08 CN CN202111310346.8A patent/CN114018973A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2176837A1 (en) * | 1994-09-30 | 1996-04-11 | Gerard Moracchini | Device for dertermining on an active site sample characteristics of for example petroleum fluids |
| CN102032991A (en) * | 2010-11-16 | 2011-04-27 | 北京理工大学 | Engine piston oscillating and cooling test device |
| CN104458498A (en) * | 2014-11-25 | 2015-03-25 | 浙江大学 | Internally-cooled piston with detachable oil cavity inner core |
| CN105938049A (en) * | 2016-07-11 | 2016-09-14 | 滨州学院 | Dynamic visual targeting test platform and test method |
| CN110057859A (en) * | 2019-03-18 | 2019-07-26 | 昆明理工大学 | A kind of simulator and test method of oil duct in piston oscillating heat transfer performance |
| CN110207991A (en) * | 2019-06-25 | 2019-09-06 | 哈尔滨工程大学 | Cooling oil duct Oscillation Flows visual Simulation device in crosshead diesel engine piston |
| CN210626380U (en) * | 2019-07-03 | 2020-05-26 | 河北科技大学 | Two-phase flow oscillation experimental device |
| WO2021031699A1 (en) * | 2019-08-20 | 2021-02-25 | 大连海事大学 | Liquid metal high-temperature pulsating heat pipe and testing method |
| CN111060557A (en) * | 2020-01-17 | 2020-04-24 | 南京航空航天大学 | Axial rotation oscillating heat pipe test device and use method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 卢红亮: "高强化活塞内冷油腔振荡冷却效果研究", 中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑, vol. 2020, no. 7, 15 July 2020 (2020-07-15), pages 17 - 40 * |
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