CN109655484B - A kind of experimental rig for heat insulation material Performance Assessment - Google Patents
A kind of experimental rig for heat insulation material Performance Assessment Download PDFInfo
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- CN109655484B CN109655484B CN201811593506.2A CN201811593506A CN109655484B CN 109655484 B CN109655484 B CN 109655484B CN 201811593506 A CN201811593506 A CN 201811593506A CN 109655484 B CN109655484 B CN 109655484B
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- 238000009434 installation Methods 0.000 claims abstract description 23
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- 239000011810 insulating material Substances 0.000 claims description 8
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- 238000012546 transfer Methods 0.000 abstract description 9
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- 238000010438 heat treatment Methods 0.000 description 10
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
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- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000005619 thermoelectricity Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 238000009413 insulation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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 Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention relates to a kind of experimental rigs for heat insulation material Performance Assessment.The experimental rig includes the inner casing and shell of coaxial arrangement, and cooling-water duct is formed between shell and inner casing；The periphery of one end of inner casing is provided with connection ring, and one end of inner casing and shell passes through connection ring and connects；Inlet and outlet are provided in connection ring, inlet and outlet are connected to cooling-water duct, enter from the inlet cooling water, and flow out after flowing through cooling-water duct from water outlet；The inside of the one end of inner casing far from connection ring is disposed with the first installation cavity for installing model to be measured and the second installation cavity for passing through for thermocouple assembly along the axial direction of inner casing, model to be measured is made of heat insulation material, and thermocouple assembly is used to detect the temperature of model to be measured.Experimental rig in the present invention can effectively reduce longitudinal heat transfer of heat insulation material during examination, it is ensured that model surface to be measured is heated evenly and ensures one-dimensional conduction subject to the conduction of its heat.
Description
Technical field
The invention belongs to heat insulation material Performance Assessment equipment technical fields, more particularly to a kind of heat insulation material performance that is used for examine
The experimental rig of core.
Background technique
For the reliability for ensuring the design of hypersonic aircraft thermal protection system, it is necessary to face the performance of heat insulation material on ground
It is examined, simulates high enthalpy using ground installation and heat flow fields environment, carry out long-time certification test.Currently, most common side
Method is that mould processing balling-up column model or flat plate model are placed in high temperature flow field, examines its thermal protective performance.
Using the material certification test of goalpost model, stationary point hot-fluid and stagnation pressure of the simulation material in high temperature flow field,
Commonly referred to as stagnation point ablation is tested.In stagnation point ablation test, it is most central that the top of goalpost model is in flow field, goes out apart from jet pipe
Mouth position is nearest, hot-fluid and pressure highest, to ensure that the stationary point hot-fluid and stagnation pressure in test, but there are two o'clocks to lack
Fall into: (a) except stationary point, along goalpost radial direction, the heat and pressure of model surface are constantly reduced, and lead to goalpost model surface
Hot-fluid is uneven, and ablation amount may be inconsistent everywhere, and mass ablative rate and linear ablative rate can not Efficient Characterization material thermal protective performances；
(b) other than the heating of head high temperature gas flow, the columnar part of Sphere Model also receives the heating of high-temperature gas radiation, exists
Radial heat transfer, stationary point hot-fluid are unable to characterize total heating amount of model.
Using the material certification test of flat plate model, its thermal protective performance under the anti-thermal environment of large area is examined, commonly referred to as
For flat ablation.In flat ablation, model is arranged along jet pipe direction, and has certain angle of attack, can make model
Larger area is heated, but has following two points defect: (a) planar surface hot-fluid/pressure is unevenly distributed, due to the high enthalpy stream of heater
Field characteristic causes planar surface hot-fluid and pressure high among genesis analysis, and both sides are low, axial to be distributed and away from nozzle exit distance
It is inversely proportional, which results in its flat plate model ablated surface is uneven, it is difficult to its ablation characteristics of quantitative assessment；(b) planar surface heat
Flowing pressure is low, due to plate examination face along jet pipe direction arrange, though have certain angle of attack, can not also obtain higher surface heat flow and
Pressure.
To sum up, it is therefore desirable to which a kind of novel experimental rig for heat insulation material Performance Assessment is provided.
Summary of the invention
The object of the present invention is to provide a kind of experimental rigs for heat insulation material Performance Assessment, to solve in the prior art
At least one existing technical problem.The experimental rig in the present invention can effectively reduce heat insulation material in Performance Assessment process
In longitudinal heat transfer, it is ensured that model surface to be measured is heated evenly.
To achieve the goals above, the present invention provides a kind of experimental rigs for heat insulation material Performance Assessment, including
The inner casing and shell of coaxial arrangement, have gap between the shell and the inner casing, the gap forms cooling-water duct；Institute
The periphery for stating one end of inner casing is provided with connection ring, and the inner casing is connect with one end of the shell by the connection ring；Institute
It states and is provided with inlet and outlet in connection ring, the water inlet and the water outlet are connected to the cooling-water duct,
Enter cooling water from the water inlet, and is flowed out after flowing through the cooling-water duct from the water outlet；The inner casing is separate
The inside of one end of the connection ring is disposed with the first mounting rack and the second mounting rack, institute along the axial direction of the inner casing
It states to be formed between the end of the one end of inner casing far from the connection ring, the inner wall of the inner casing and first mounting rack and be used for
First installation cavity of model to be measured is installed, second mounting rack is first mounting rack, described for installing thermocouple assembly
The second installation cavity for passing through for thermocouple assembly is formed between the inner wall of inner casing and second mounting rack, it is described to be measured
Model is made of heat insulation material, and the thermocouple assembly is used to detect the temperature at the model back side to be measured.
Preferably, the experimental rig further includes jacket, and the model to be measured is mounted on described by the jacket
In first installation cavity；Side setting of the jacket close to the end of the inner casing is fluted, and the groove is for accommodating institute
State model to be measured.
Preferably, the jacket is made of heat-insulating material.
Preferably, the groove is cylindrical recesses.
Preferably, the two sides of the outer wall of the inner casing are correspondingly provided with two the first parting beads, first parting bead with
The inner wall of the shell connects, for the cooling-water duct to be separated into inlet area and outlet area, the water inlet and
The water outlet, which respectively corresponds, to be distributed in the inlet area and the outlet area.
Preferably, the shell includes the cone cylinder structure of cylindrical structure and internal diameter gradual change, one end of the cone cylinder structure with
The connection ring connection；The internal diameter that the cone cylinder structure is connected with one end of the connection ring is greater than the cone cylinder structure far from institute
State the internal diameter of one end of connection ring.
Preferably, a plurality of second parting bead is additionally provided on the outer wall of the inner casing, second parting bead is located at the inner casing
It is connect between the cylindrical structure, and with the inner wall of the cylindrical structure.
Preferably, the side of end of the groove far from the inner casing is provided with air chamber.
Preferably, the air chamber with a thickness of 0.8~1.5mm.
Preferably, the thermocouple assembly includes thermocouple wire and thermocouple support device；The thermocouple support device
Including the support portion for being connect with the second mounting rack and the thermocouple portion for wearing the thermocouple wire, the thermocouple portion
Across the jacket so that the thermocouple wire is connect with the back side of the model to be measured.
The present invention at least have compared with prior art it is following the utility model has the advantages that
(1) experimental rig inner casing that includes in the present invention and shell are mainly as clamping device, including the present invention
Cooling-water duct is set between shell and shell, on the one hand can be realized effective cooling to shell and inner casing, mitigates external high temperature
Air-flow heating, on the other hand the heat in high temperature flow field can be effectively prevented from high temperature melting in effective protection inner casing and shell
By longitudinally importing model to be measured, longitudinal heat transfer of heat insulation material during Performance Assessment can be effectively reduced, to can guarantee
The heated uniformity in heat insulation material surface, so that the model heating state to be measured in the present invention can be approximately to be heated evenly
Quasi- One-dimensional heat transfer.
(2) in certain preferred embodiments of the invention, the jacket is made of heat-insulating material, and described to be measured
Model is mounted in first installation cavity by jacket, in this way, can be preferably minimized the longitudinal direction on model to be measured is thermally conductive, energy
It effectively prevent the heat inside model to be measured thermally conductive to the shell, so that the experimental rig in the present invention can have
Effect isolation is longitudinal thermally conductive, and in the present invention, model to be measured is accommodated in the groove in central location, can be further ensured that be measured
Model surface is heated evenly and can further ensure that one-dimensional conduction subject to the heat conduction of heat insulation material, so as to quantification
Characterize the relationship of heat insulation material surface heat flow and thermal response, ablating rate etc..
(3) in certain preferred embodiments of the invention, the side of end of the groove far from the inner casing is provided with
Air chamber, the setting of the air chamber can further decrease the loss of the conduction hot-fluid inside model to be measured.
(4) in certain preferred embodiments of the invention, be provided on the outer wall of the inner casing two the first parting beads to
The cooling-water duct inlet area and outlet area are separated into, the inlet area and the outlet area are located at
The two sides of the inner casing so that cooling water enters from the inlet, and along the cooling-water duct recycle one week (from inlet area around
To outlet area) after could be flowed out from water outlet, improve the utilization rate of cooling water, ensure that cooling water flows through range, keeps away
The hot-spot of the experimental rig is exempted from, so as to the more uniform heat being effectively prevented in high temperature flow field by longitudinally leading
Enter model to be measured；In addition, being additionally provided with a plurality of second parting bead on the outer wall of the inner casing, second parting bead is located at the inner casing
It is connect between the cylindrical structure, and with the inner wall of the cylindrical structure, it can be by the inlet area and outlet area point
Multiple aquaporins are divided into, so that cooling water quickly flows in multiple aquaporins, further avoid the experimental rig
Hot-spot, the cooling uniformity of cooling water and cooling efficiency are better assured that, so as to be more effectively prevented from height
Heat in warm flow field is by longitudinally importing model to be measured.
Detailed description of the invention
Attached drawing of the present invention only provides for the purpose of illustration, in figure the ratio Yu quantity of each component not necessarily with actual product one
It causes.
Fig. 1 is the side view in the present invention for a specific embodiment of the experimental rig of heat insulation material Performance Assessment
Figure.
Fig. 2 is the cross-sectional view of A-A in Fig. 1.
Fig. 3 is the structural schematic diagram that experimental rig is connected with cooling water pipe connector in Fig. 2.
Fig. 4 is the structural schematic diagram for the shell for including in Fig. 2.
Fig. 5 is the structural schematic diagram for the inner casing for including in Fig. 2.
Fig. 6 is the cross-sectional view of B-B in Fig. 5.
Fig. 7 is the cross-sectional view of C-C in Fig. 5.
Fig. 8 is the oblique sectional view of D-D in Fig. 6.
Fig. 9 is the structural schematic diagram that experimental rig is equipped with jacket and thermocouple support device in Fig. 3.
Figure 10 is the structural schematic diagram for the jacket for including in Fig. 9.
Figure 11 is the structural schematic diagram for the thermocouple support device for including in Fig. 9.
In figure: 1: shell；11: cylindrical structure；12: cone cylinder structure；2: inner casing；21: the first mounting racks；211: the first installations
Chamber；22: the second mounting racks；221: the second installation cavitys；3: connection ring；31: water inlet；32: water outlet；33: admitting pipe joint；
34: titting water outlet；4: cooling-water duct；5: the first parting beads；6: the second parting beads；7: jacket；71: groove；8: air chamber；9:
Thermocouple support device；91: support portion；92: thermocouple portion；921: wearing mouth.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, is clearly and completely described technical solution of the present invention, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made is worked, shall fall within the protection scope of the present invention.
The present invention provides a kind of experimental rigs for heat insulation material Performance Assessment；In the present invention, Fig. 1 is the present invention
In for heat insulation material Performance Assessment experimental rig a specific embodiment side view；Fig. 2 is that A-A is cutd open in Fig. 1
View；Fig. 3 is the structural schematic diagram that experimental rig is connected with cooling water pipe connector in Fig. 2；Fig. 4 is the shell for including in Fig. 2
Structural schematic diagram；Fig. 5 is the structural schematic diagram for the inner casing for including in Fig. 2；Fig. 6 is the cross-sectional view of B-B in Fig. 5；Fig. 7 is in Fig. 5
The cross-sectional view of C-C；Fig. 8 is the oblique sectional view of D-D in Fig. 6；Fig. 9 is that experimental rig is equipped with jacket and thermoelectricity even component in Fig. 3
The structural schematic diagram of support arrangement；Figure 10 is the structural schematic diagram for the jacket for including in Fig. 9；Figure 11 is the thermoelectricity for including in Fig. 9
The structural schematic diagram of even component support arrangement；Wherein, in fig. 8 it is shown that axis more than part be along being not provided with the first parting bead
It is splitted with the position of the second parting bead, the axis shown part below is splitted along the position for being provided with the first parting bead.
In the present invention, the experimental rig for heat insulation material Performance Assessment includes the inner casing 2 of coaxial arrangement and outer
Shell 1, the shell 1 are arranged outside the inner casing 2, have gap between the shell 1 and the inner casing 2, the gap is formed
Cooling-water duct 4 circulates for Cooling Water, for example, as shown in Figure 2；The periphery of one end of the inner casing 2 is provided with connection ring
3, the inner casing 2 is connect with one end of the shell 1 by the connection ring 3；31 He of water inlet is provided in the connection ring 3
Water outlet 32, for example, making as shown in Fig. 2, the water inlet 31 and the water outlet 32 are connected to the cooling-water duct 4
Cooling water enters from the water inlet 31, and flows out after flowing through the cooling-water duct 4 from the water outlet 32；The inner casing 2
The inside of one end far from the connection ring 3 is along axial direction (such as the side from left to right as shown in Figure 2 of the inner casing 2
To) it is disposed with the first mounting rack 21 and the second mounting rack 22, the end of the one end of the inner casing 2 far from the connection ring 3,
The first installation cavity 211 for installing model to be measured, institute are formed between the inner wall of the inner casing 2 and first mounting rack 21
The second mounting rack 22 is stated for installing thermocouple assembly, first mounting rack 21, the inner wall of the inner casing 2 and described second
The second installation cavity 221 for passing through for thermocouple assembly is formed between mounting rack 22, the model to be measured is by heat insulation material system
At the thermocouple assembly is used to detect the temperature at the model back side to be measured.In the present invention, 21 He of the first mounting rack
Second mounting rack 22 for example can equal shapes in a ring, first mounting rack 21 and second mounting rack 22 with it is described
The inner wall of inner casing 2 connects, phase interworking between the inner wall of first mounting rack 21, the end of the inner casing 2 and the inner casing 2
The accommodation space being encircled into forms first installation cavity 211, first mounting rack 21, the second mounting rack 22 and the inner casing
The accommodation space surrounded that cooperates between 2 inner wall forms second installation cavity 221.
In the present invention, the water inlet 31 and the water outlet 32 for example can be along the axial directions pair of the inner casing 2
Claim to be arranged in the connection ring 3, the water inlet 31 and the water outlet 32 for example can be for by being provided with the connection ring 3
In port formed；In the present invention, the connection ring 3 for example can be independent structure, for example, the connection ring 3 is socketed
(such as by way of welding or being threadedly coupled) in the periphery of one end of the inner casing 2, the outer wall of the connection ring 3 with it is described
The inner wall connection (such as by welding) of shell 1, so that one end of the inner casing 2 and the shell 1 passes through the company
Connect the connection of ring 3；In the present invention, the connection ring 3 is for example also possible to the structure with 2 one of inner casing, such as described interior
One end of shell 2 is radially outward provided with flange along the inner casing 2, and the flange forms the connection ring 3, for example, such as Fig. 2
Shown, the connection ring 3 connect (such as by welding) with the inner wall of the shell 1 so that the inner casing 2 with it is described
One end of shell 1 is connected by the connection ring 3；In the present invention, it is preferred to be and 2 one of inner casing for the connection ring 3
Structure, facilitate machine-shaping.
In the present invention, the inner casing and shell that the experimental rig includes are mainly as clamping device, and the present invention is in inner casing
Cooling-water duct is set between shell, on the one hand can be realized effective cooling to shell and inner casing, mitigates external high temperature gas
Stream heating, effective protection inner casing and shell from high temperature melting, on the other hand can be effectively prevented heat in high temperature flow field by
It is longitudinal to import model to be measured, longitudinal heat transfer of heat insulation material during Performance Assessment can be effectively reduced, to can guarantee anti-
The heated uniformity in hot material surface, so that the model heating state to be measured in the present invention can be approximately the standard being heated evenly
One-dimensional heat transfer.
According to some preferred embodiments, the experimental rig further includes admitting pipe joint 33 and titting water outlet 34,
For example, as shown in figure 3, the admitting pipe joint 33 and the titting water outlet 34 be separately connected (such as by welding or screw thread
The mode of connection connects) in the position of the water inlet 31 and the water outlet 32, the admitting pipe joint 33 is used for and cooling
Water source connection, the titting water outlet 34 are used to flow through the cooling water discharge of the cooling-water duct 4.Preferably, it is described into
One end of water pipe head 33 is connect with the water inlet 31, and the other end is connect by water inlet pipe with cooling water source；The outlet pipe
One end of connector 34 is connect with the water outlet 32, and the other end will be in cooling-water drain to receptacle or specified by outlet pipe
Position.In the present invention, the admitting pipe joint 33 and the titting water outlet 34 are referred to as cooling water pipe connector.
According to some preferred embodiments, one end that the admitting pipe joint 33 is connect with the water inlet 31 is parallel to
The axis direction of the inner casing 2, the other end are obliquely installed (axis direction of the relatively described inner casing 2)；The titting water outlet 34
The one end connecting with the water outlet 32 is parallel to the axis direction of the inner casing 2, and the other end is obliquely installed (the relatively described inner casing
2 axis direction), for example, as shown in Figure 3 and Figure 9, so the position of cooling water pipe connector can be made to add far from high temperature gas flow
Heat.
According to some preferred embodiments, the inner wall that the inner casing 2 is connected with one end of the connection ring 3 is provided with interior
Screw thread, so that one end of the inner casing 2 becomes threaded hole, for example, as depicted in figs. 1 and 2, which can be used for and support institute
The bracket for stating experimental rig is threadedly coupled, so that the experimental rig is supported in high temperature flow field.
According to some preferred embodiments, the side wall of the one end of the shell 1 far from the connection ring 3 is provided with down
Angle, for example, as shown in Figure 4；In the present invention, it is preferred to use this chamfering mistake far from one end of the connection ring for the shell
The mode crossed, the position heating that so can effectively avoid high-temperature high-speed airflow small to radius of curvature is serious, can effectively prevent stainless
The ablation of outer steel shell and inner casing.
The present invention is not particularly limited the material of the shell, inner casing, connection ring, cooling water pipe connector etc., preferably
, the shell 1, the inner casing 2, the connection ring 3 are all made of stainless steel material (such as 321 stainless steels) and are made, described
Cooling water pipe connector is made of fine copper material.
According to some preferred embodiments, the experimental rig further includes jacket 7, and the model to be measured passes through described
Jacket 7 is mounted in first installation cavity 211；The jacket 7 is provided with recessed close to the side of the end of the inner casing 2
Slot 71, the groove 71 is for accommodating the model to be measured, for example, as shown in Figure 9 and Figure 10, the groove 71 for example can be by
One side of the jacket 7 is formed to other side indent.In the present invention, the jacket 7 is preferably using with thermal insulation
The heat-insulating material of energy is made, for example, can be made, example using the good heat-insulating material (the low material of the coefficient of heat conduction) of processing performance
If the jacket is made of closed pore quartz foam ceramic material, the main component of the closed pore quartz foam ceramic material is
Silica (quartz).
In the present invention, the jacket is made of heat-insulating material, and the model to be measured is installed by jacket
In first installation cavity, in this way, can be preferably minimized the longitudinal direction on model to be measured is thermally conductive, it can effectively prevent in model to be measured
The shell of the heat in portion to the experimental rig is thermally conductive so that the experimental rig in the present invention can effectively completely cut off it is vertical
To thermally conductive, in the present invention, model to be measured is accommodated in the groove in central location, can further ensure that model surface to be measured
Be heated evenly and can further ensure that heat insulation material heat conduction subject to one-dimensional conduction, so as to quantification characterize solar heat protection
The relationship of material surface hot-fluid and thermal response, ablating rate etc..
According to some preferred embodiments, the jacket 7 is coaxially disposed with the inner casing 2, and the groove 71 is arranged
At the middle part of the jacket 7, the model to be measured can so be made to be mounted on the central position of one end of the experimental rig
(middle part) is set, so that model to be measured vertical face high temperature gas flow center, the edge hot-fluid of model to be measured and center differential heat flow at this time
Away from can be ignored, the heated uniformity of model surface to be measured can be further ensured that；It certainly, in the present invention, such as can also
By making the miniaturization of model to be measured further ensure that the being heated evenly property of model surface to be measured.
According to some preferred embodiments, the groove 71 is cylindrical recesses, can be used for placing columnar mould to be measured
Type (sample to be tested) can so increase the contact area of model and high-temperature gas to be measured, can ensure that high-temperature gas all passes through
Model to be measured.Specifically, in the present invention, such as the groove can be arranged to by prism-shaped or cylinder according to model to be measured
Shape.
According to some preferred embodiments, the side of end of the groove 71 far from the inner casing 2 is provided with air
Chamber (cavity) 8, for example, as shown in Figure 9 and Figure 10.In the present invention, the air chamber is arranged in the groove far from described interior
The outside of the side of the end of shell, in other words, when model to be measured is placed in the groove, the air chamber be located at it is described to
It surveys between model and the jacket；In the present invention, the pressure in the air chamber is consistent with extraneous static pressure, the air
The heat-insulating material that the setting of chamber effectively prevents including in air chamber position model to be measured and jacket contacts, the air chamber
Setting can be further reduced heat transfer, reduce inside model to be measured conduction hot-fluid loss.
According to some preferred embodiments, the air chamber 8 with a thickness of 0.8~1.5mm (such as 0.8,0.9,1,
1.1,1.2,1.3,1.4 or 1.5mm)；In the present invention, it is preferred to which the thickness L for the air chamber 8 is 1mm；In Figure 10, " L "
What is indicated is the thickness of the air chamber.
According to some preferred embodiments, the two sides of the outer wall of the inner casing 2 be correspondingly provided with two first every
Item 5, such as shown in fig. 6, first parting bead 5 connect with the inner wall of the shell 1 (such as connect or be fitted close
Connection), for the cooling-water duct to be separated into inlet area and outlet area, the water inlet 31 and the water outlet 32
It respectively corresponds and is distributed in the inlet area and the outlet area.In the present invention, the setting of first parting bead 5 can be with
So that the cooling water in cooling-water duct 4 is unlikely to the axis gap below for all flowing to the experimental rig due to gravity
In, so that cooling water separates in the circumferential, cooling water must bypass described after the entrance of the water inlet 31 of 4 one end of cooling-water duct
The other end of cooling-water duct 4 could flow out after turning back again from water outlet 32, and ensure that cooling water flows through range, so as to
The more uniform cooling effectively realized to inner casing and shell, while also can effectively prevent the heat in high temperature flow field by longitudinally leading
Enter model to be measured.In the present invention, first parting bead 5 extends from one end that the inner casing 2 is provided with connection ring (along described interior
The axial direction of shell 2 extends) at the fillet surface of the inner casing other end；The two sides of the outer wall of the inner casing 2 are correspondingly
Being provided with two the first parting beads 5 refers to two first parting beads 5 along the symmetrical setting of axial direction of the inner casing 2, example
Such as, as shown in fig. 6, when the left side of the inner casing 2 is arranged in first parting bead 5, then another first parting bead 5
Setting is on 2 right side of inner casing.
According to some preferred embodiments, the shell 1 includes the cone cylinder structure 12 of cylindrical structure 11 and internal diameter gradual change,
One end of the cone cylinder structure 12 is connect with the connection ring 3；The cone cylinder structure 12 is connected with one end of the connection ring 3
Internal diameter is greater than the internal diameter of the one end of the cone cylinder structure 12 far from the connection ring 3, for example, as shown in Figure 4.In the present invention,
The cylindrical structure 11 and the cone cylinder structure 12 can be for example integrally formed, or be welded together；As shown in figure 4, described
The internal run-through of cylindrical structure 11 and the cone cylinder structure 12.In the present invention, it is preferred to for one end of connection ring 3 will be provided with
Shell 1 is arranged to the cone cylinder structure 12, and the water inlet position of cooling-water duct 4 and water exit position can so be made to have slope
Degree, quickly flows in the cooling-water duct 4 to be conducive to cooling water, rapidly takes away the heat in high temperature flow field
Amount, more efficiently protects inner casing and shell from high temperature melting, more efficiently avoids the heat in high temperature flow field by longitudinally leading
In the fashionable model to be measured.In the present invention, when the cone cylinder structure 12 that the shell 1 includes cylindrical structure 11 and internal diameter gradual change
When, the inner wall of first parting bead 5 and the cylindrical structure 11 and the cone cylinder structure 12 is all connected with；First parting bead 5
The cross sectional shape in gap between cross sectional shape and the shell 1 and the inner casing 2 is identical, for example, as shown in Figure 8.
According to some preferred embodiments, it is additionally provided with a plurality of second parting bead 6 on the outer wall of the inner casing 2, described
Two parting beads 6 between the inner casing 2 and the cylindrical structure 11, and connect with the inner wall of the cylindrical structure 11 (such as
It connects or is closely connected).In the present invention, second parting bead 6 extends along the axial direction of the inner casing 2；
Second parting bead 6 is distributed in the inlet area and the outlet area, for example, as shown in Figure 7.In the present invention, more
Item refers to two and two or more.In the present invention, it is preferred to be additionally provided with described in 2~6 on the outer wall of the inner casing 2
Second parting bead 6.In the present invention, first parting bead 5 and second parting bead 6 are referred to as parting bead, when outside the inner casing 2
When being provided with first parting bead 5 and second parting bead 6 on wall, along the circumferential direction of the inner casing 2 between the preferably described parting bead
Interval is uniformly distributed, for example, as shown in fig. 7, when the inner casing 2 outer wall on be provided with two the first parting beads 5 and 4 second every
When item 6, the angle between every two parting beads is 60 °.The present invention does not have the material of first parting bead 5 and second parting bead 6
There is special limitation, is preferably made of stainless steel；In the present invention, first parting bead 5 and second parting bead 6
Setting can accelerate the exchange rate between inner casing, shell and cooling water, be further ensured that cooling effect.
In the present invention, the both ends of second parting bead and the inner casing disconnect, so that cooling water is in multiple aquaporins
It quickly flows, further avoids the hot-spot of the experimental rig, better assure that the uniform of cooling water cooling
Property and cooling efficiency, accelerate the exchange rate between cooling water and inner casing, shell, so as to be more effectively prevented from height
Heat in warm flow field is by longitudinally importing model to be measured.
According to some preferred embodiments, the thermocouple assembly includes thermocouple wire (thermocouple signal line) and thermoelectricity
Even component support arrangement 9；The thermocouple support device includes support portion 91 for connecting with the second mounting rack 22 and for wearing
The thermocouple portion 92 of the thermocouple wire, for example, as shown in figures 9 and 11, the thermocouple portion pass through the jacket so that
It obtains the thermocouple wire to connect with the back side (right side as shown in Figure 9) of the model to be measured, for example, as shown in Figure 9.At this
When illustrating to carry out Performance Assessment using heretofore described experimental rig in invention, in Fig. 9, the jacket 7 and the heat
The installation site relationship of coupled device, does not wherein illustrate thermocouple wire in Fig. 9；In the present invention, it is filled when using the test
It sets when carrying out Performance Assessment to heat insulation material, for example, the jacket and the thermocouple assembly are separately mounted to described the
In one installation cavity and in the second mounting rack, the thermocouple portion of the thermocouple assembly sequentially passes through the second installation cavity and the insulation
It is placed on the bottom side (right side as shown in Figure 9) for the groove that jacket includes, so that the thermocouple wire (detection of thermocouple wire
End) (such as contact connectio) is connect with the back side for accommodating model to be measured in the groove, it can so obtain test process
The middle sample back side conduction hot-fluid and sample back temperature, to measure examination during the heat insulation material surface temperature, and
The conduction hot-fluid inside model to be measured can be determined by conduction/radiation Coupled Heat Transfer calculation procedure according to the size of the temperature
With model back temperature to be measured etc..In the present invention, when being additionally provided with the air chamber, the thermocouple portion need to be sequentially passed through
It is just connect with the back side of the model to be measured after second installation cavity, jacket and air chamber.It is filled using test of the present invention
Set when carrying out Performance Assessment to heat insulation material, can effectively shield it is longitudinal it is thermally conductive, surface uneven heating is even etc. burns to heat insulation material
The influence of erosion obtains temperature-responsive of the model to be measured under quasi- one-dimensional heating environment, heat transmission, mass ablative rate, line ablation
The important performance data such as rate, is material ablation mechanism study, and Design of Performance provides important test data support.
In the present invention, described to be measured when the model to be measured is placed in the groove that jacket as shown in Figure 9 includes
The back side of model refers to the right side of the model to be measured；In the present invention, the thermocouple support device can for example adopt
It is made of the heat-insulating material of good mechanical property, such as glass reinforced plastic.
According to some preferred embodiments, first mounting rack 21 is offered for wearing the thermocouple portion 92
It perforates, the cavity for wearing the thermocouple portion 92 is offered in the jacket 7, for example, as shown in Figure 9；It illustrates
, Figure 10 is that the jacket edge for including is not provided with the structural schematic diagram that the position of cavity is splitted in Fig. 9, has no effect on Fig. 9
With the corresponding relationship of jacket in Figure 10.
According to some preferred embodiments, the thermocouple portion 92 is vertical with the middle part of the support portion 91 to be connect, example
Such as, as shown in figures 9 and 11；In the present invention, the support portion 91 and the thermocouple portion 92 for example can be with integrated moldings
It forms.In the present invention, the support portion 91 is connected to the back (right side as shown in Figure 9) of second mounting rack 22.
According to some preferred embodiments, offer in the thermocouple portion 92 for wearing wearing for the thermocouple wire
Mouth 921, and the mouth 921 of wearing penetrates through the support portion 91, for example, as shown in figure 11.
According to some preferred embodiments, along the circumferentially-spaced of second mounting rack 22 on second mounting rack 22
Multiple first threaded holes are offered, along the circumferential direction of the support portion 91 on the support portion 91 that the thermocouple support device 9 includes
It is spaced apart equipped with multiple the second threaded holes to match with first threaded hole, for example, as shown in Fig. 1, Fig. 6 and Fig. 7, along institute
It states the circumferentially-spaced of the second mounting rack 22 and equably offers 6 the first threaded holes, and between the circumferential direction of the support portion 91
Every equably offering 6 the second threaded holes, first threaded hole and second threaded hole can pass through for bolt simultaneously,
The bolt is fixed after passing through first threaded hole and second threaded hole simultaneously by nut, and bolt and nut close-fitting is passed through
Fixed mode is threaded in the support portion 91 of the thermocouple support device 9 on second mounting rack 22.
It illustrates, in the present invention, the orientation or positional relationship of the instructions such as term "left", "right", "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified facility or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention；Term " first ", " second " etc. are used for description purposes only, and are not understood to indicate or imply relatively heavy
The property wanted；For the ordinary skill in the art, visual concrete condition understand above-mentioned term in the present invention specifically contain
Justice.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of experimental rig for heat insulation material Performance Assessment, it is characterised in that:
Inner casing and shell including coaxial arrangement have gap between the shell and the inner casing, the gap forms cooling
Aquaporin；
The periphery of one end of the inner casing is provided with connection ring, and one end of the inner casing and the shell is connected by the connection ring
It connects；
Be provided with inlet and outlet in the connection ring, the water inlet and the water outlet with the cooling-water duct
Connection, enters cooling water from the water inlet, and flows out after flowing through the cooling-water duct from the water outlet；
The inside of the one end of the inner casing far from the connection ring is disposed with the first installation along the axial direction of the inner casing
Frame and the second mounting rack, the end of the one end of the inner casing far from the connection ring, the inner wall of the inner casing and described first
The first installation cavity for installing model to be measured is formed between mounting rack, second mounting rack is used to install thermocouple assembly,
First mounting rack, the inner casing inner wall and second mounting rack between formed for being passed through for thermocouple assembly
Second installation cavity, the model to be measured are made of heat insulation material, and the thermocouple assembly is for detecting the model back side to be measured
Temperature；
The experimental rig further includes jacket, and the model to be measured is mounted on first installation cavity by the jacket
It is interior；The jacket is made of heat-insulating material；
Side setting of the jacket close to the end of the inner casing is fluted, and the groove is for accommodating the mould to be measured
Type.
2. experimental rig according to claim 1, it is characterised in that:
The groove is cylindrical recesses.
3. experimental rig according to claim 1, it is characterised in that:
The two sides of the outer wall of the inner casing are correspondingly provided with two the first parting beads, and first parting bead is interior with the shell
Wall connection, for the cooling-water duct to be separated into inlet area and outlet area, the water inlet and the water outlet point
It Dui Ying not be distributed in the inlet area and the outlet area.
4. experimental rig according to any one of claims 1 to 3, it is characterised in that:
The shell includes the cone cylinder structure of cylindrical structure and internal diameter gradual change, and one end of the cone cylinder structure and the connection ring connect
It connects；
The internal diameter that the cone cylinder structure is connected with one end of the connection ring is greater than the cone cylinder structure far from the connection ring
The internal diameter of one end.
5. experimental rig according to claim 4, it is characterised in that:
A plurality of second parting bead is additionally provided on the outer wall of the inner casing, second parting bead is located at the inner casing and the cylinder knot
Between structure, and it is connect with the inner wall of the cylindrical structure.
6. experimental rig according to claim 1, it is characterised in that:
The side of end of the groove far from the inner casing is provided with air chamber.
7. experimental rig according to claim 6, it is characterised in that:
The air chamber with a thickness of 0.8~1.5mm.
8. experimental rig according to claim 1, it is characterised in that:
The thermocouple assembly includes thermocouple wire and thermocouple support device；
The thermocouple support device includes support portion for connecting with the second mounting rack and for wearing the thermocouple wire
Thermocouple portion, the thermocouple portion pass through the jacket so that the thermocouple wire is connect with the back side of the model to be measured.
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| CN112484952B (en) * | 2020-12-11 | 2022-04-22 | 中国空气动力研究与发展中心超高速空气动力研究所 | Bulb and method for measuring stagnation point heat flow for long time |
| CN114264493B (en) * | 2021-12-09 | 2024-08-06 | 中国航天空气动力技术研究院 | Multipurpose water-cooling standing point measuring probe for aerodynamic heating ground simulation test |
| CN115308354A (en) * | 2022-07-29 | 2022-11-08 | 北京临近空间飞行器系统工程研究所 | A device for measuring catalytic properties of materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006343325A (en) * | 2005-05-12 | 2006-12-21 | Kobe Steel Ltd | Device and method for measuring thermophysical property |
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| JP5095844B2 (en) * | 2005-05-12 | 2012-12-12 | 株式会社神戸製鋼所 | Thermophysical property measuring apparatus and thermophysical property measuring method |
| CN102183312B (en) * | 2011-03-16 | 2013-01-02 | 北京航空航天大学 | Surface high-temperature measurement device for nonmetallic heat resistant material plane test piece of hypersonic speed aircraft |
| CN103134900B (en) * | 2013-01-30 | 2014-12-24 | 中国航天空气动力技术研究院 | Ablation test method of thermal protection structure of high supersonic velocity aircraft |
| CN103411940B (en) * | 2013-08-08 | 2014-06-18 | 哈尔滨工业大学 | Detection method and test device for catalytic properties of heatproof material based on emission spectrum |
| CN204679436U (en) * | 2015-04-28 | 2015-09-30 | 上海新力动力设备研究所 | Solid propellant rocket external thermal protection coating carries on the back warm test macro |
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