CN114904597B - Flat wall type internal heat source system for vibration under ultra-high temperature condition - Google Patents
Flat wall type internal heat source system for vibration under ultra-high temperature condition Download PDFInfo
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- CN114904597B CN114904597B CN202210654980.1A CN202210654980A CN114904597B CN 114904597 B CN114904597 B CN 114904597B CN 202210654980 A CN202210654980 A CN 202210654980A CN 114904597 B CN114904597 B CN 114904597B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1861—Means for temperature control using radiation
- B01L2300/1872—Infrared light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1894—Cooling means; Cryo cooling
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Abstract
The invention provides a flat wall type internal heat source system for vibrating under ultra-high temperature condition, which comprises a vibration connector (10), a high temperature heater (20), a fixed lamp bracket (30) and a water cooling platform (40); the vibration coupler (10) is of an integrated structure and comprises an upper mounting plate (11), an annular side wall (12), a lower mounting plate (13) and reinforcing ribs (14), the high-temperature heater (20) comprises a high-temperature-resistant fixing plate (21), a lamp tube clamp (22) and a heating lamp tube (23), the fixing lamp holder (30) comprises a transition supporting rod (31) and a general supporting truss (32), and a cooling guide tube (41) is arranged in the water cooling platform (40). The system can provide internal heat and high temperature for an object to be detected under the vibration condition, realizes effective coupling of heat-vibration, can effectively avoid overflow of internal environment heat, can cool a non-heating zone in the heating process, and can avoid serious aging and even failure of the non-heating zone parts.
Description
Technical Field
The invention relates to the technical field of environmental simulation tests, in particular to a flat wall type internal heat source system for vibration under an ultra-high temperature condition.
Background
Under the interaction of various natural environment factors and mechanical environment factors, the functions, performances and service life of the equipment are affected, so that the functions, performances and service life of the equipment are reduced, and even the capability of the equipment for normal work is lost, so that various accidents are caused. Therefore, in the development process of equipment at present, environmental simulation tests are usually required to be carried out on the equipment so as to inspect the environmental adaptability of the equipment and materials thereof, expose the environmental failure mode of a product, evaluate the storage/service life of the product and the like; and further provides effective test data support for research and development designs of equipment structures, materials and the like, and provides technical support for application of subsequent equipment.
However, the current environmental test simulation system has single research factors, and the simulated environmental factors are not comprehensive enough, so that the complex working conditions of the equipment in the actual use environment cannot be completely simulated. For example, the existing equipment power cabin is not only vibrated but also in an internal heat environment above 800 ℃ in actual use, however, the temperature of the existing temperature-humidity-vibration comprehensive simulation test equipment in the vibration process can only reach 300 ℃ at most (mainly, the existing environment comprehensive simulation test equipment is easy to overflow in the vibration process, external equipment is influenced if the equipment is heated to high temperature, meanwhile, the heater is required to be heated to high temperature to be much higher than the required temperature, and energy waste is caused), and the simulated environment temperature is only atmospheric temperature, but not internal heat environment temperature in actual working conditions; therefore, the temperature simulated in the vibration process of the existing environment simulation equipment has large difference from the actual use process of equipment, and the equipment performance evaluation cannot be accurately and effectively performed, so that effective technical support cannot be provided for subsequent research, design and use.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a flat wall type internal heat source system for vibration under the ultra-high temperature condition, which can provide internal heat and high temperature for an object to be detected under the vibration condition, can effectively avoid overflow of internal environment heat and ensure heating effectiveness, and can realize effective cooling of other parts (namely non-heating area parts) of a test system in the internal environment heating process and avoid serious aging and even failure of the other parts (namely non-heating area parts) of the test system.
The aim of the invention is achieved by the following technical scheme:
A flat wall internal heat source system for vibration at ultra-high temperatures, characterized by: comprises a vibration connector, a high-temperature heater, a fixed lamp bracket and a water cooling platform; the vibration coupler is of an integrated structure and comprises an upper mounting plate, an annular side wall, a lower mounting plate and reinforcing ribs, wherein a through hole is formed in the middle of the upper mounting plate and the middle of the lower mounting plate, the bottom surface of the upper mounting plate is fixedly connected with the top surface of the lower mounting plate through the annular side wall, the upper mounting plate and the annular side wall are collinear with the central axis of the lower mounting plate, a plurality of reinforcing ribs are uniformly arranged on the outer ring of the annular side wall and around the central axis of the outer ring of the annular side wall, and the reinforcing ribs are respectively fixedly connected with the upper mounting plate and the lower mounting plate; the high-temperature heater is arranged in a cavity formed by the upper mounting plate, the lower mounting plate and the annular side wall and comprises a high-temperature-resistant fixing plate, lamp tube clamps and heating lamp tubes, wherein the two ends of the upper end face of the high-temperature-resistant fixing plate are respectively fixedly provided with one lamp tube clamp, a plurality of heating lamp tubes are uniformly arranged in the middle of the upper end face of the high-temperature-resistant fixing plate and between the two lamp tube clamps and are mutually parallel, the two ends of the heating lamp tubes are respectively fixed by the lamp tube clamps at the two ends, and one end of each heating lamp tube penetrates through the high-temperature-resistant fixing plate and is positioned in the cavity at the lower side of the high-temperature-resistant fixing plate; the annular side wall is positioned at the lower side of the high-temperature-resistant fixed disc, a plurality of square holes are symmetrically formed around the central axis of the annular side wall, the square holes are located at different positions with the reinforcing ribs, the fixed lamp bracket comprises a transition support rod and a universal support truss, the transition support rod corresponds to the square holes, two ends of the transition support rod respectively penetrate through the two mutually symmetrical square holes and are fixedly connected with the universal support truss, and the part of the transition support rod positioned in the cavity is fixedly connected with the lower end face of the high-temperature-resistant fixed disc; the upper end face of the water cooling platform is fixedly connected with the lower end face of the lower mounting plate, a plurality of cooling pipes are uniformly arranged in the water cooling platform, and the lower end face of the water cooling platform is fixedly connected with the vibrating table; the inner wall of the annular side wall is uniformly provided with an inner heat insulation layer, the outer wall of the annular side wall is uniformly wrapped with an intermediate heat insulation layer, the upper end of the upper mounting plate and the outer wall of the reinforcing rib are uniformly provided with an outer heat insulation layer, a flexible heat insulation sheath is wrapped between the transition support rod and the square hole, a bottom heat insulation plate is arranged in a cavity between the water cooling platform and the transition support rod, and the bottom heat insulation plate is parallel to the upper mounting plate and is fixedly connected with the inner wall of the inner heat insulation layer around the bottom heat insulation plate.
And further optimizing, wherein the upper end surface of the upper mounting plate is provided with a workpiece to be tested, and the central axis of the workpiece to be tested is collinear with the central axis of the upper mounting plate.
And further optimizing, wherein the diameter of the through hole of the lower mounting disc is larger than that of the through hole of the upper mounting disc.
And the high-temperature-resistant fixing disc is further optimized, the ceramic panel layer, the lamp holder heat-insulating layer and the ceramic back plate layer are sequentially arranged from top to bottom, the central axis of the ceramic panel layer, the lamp holder heat-insulating layer and the ceramic back plate layer are collinear with the central axis of the annular side wall, the diameter of the ceramic panel layer and the diameter of the ceramic back plate layer are smaller than the inner diameter of the annular side wall, and the outer wall of the lamp holder heat-insulating layer is flexibly connected with the inner wall of the annular side wall. The arrangement of the ceramic panel layer and the ceramic back panel layer is adopted, firstly, infrared rays radiated by the heating lamp tube arranged on the upper side of the ceramic panel layer are reflected, so that heat is effectively accumulated on the upper side of the high-temperature-resistant fixed disc (namely the ceramic panel layer), rapid temperature rise of a workpiece to be tested is realized, meanwhile, the temperature of the lower side of the high-temperature-resistant fixed disc (namely the ceramic back panel layer) is effectively reduced, and the influence of high temperature on a non-heating area is avoided; secondly, the ceramic laminate can prevent deformation, so that inaccurate test results and even safety accidents caused by the heated deformation of the high-temperature-resistant fixing disc in the high-temperature heating process are avoided. Adopt lighting fixture insulating layer, firstly with ceramic panel layer, ceramic bottom surface layer cooperation, further gather the heat that the heating fluorescent tube produced in high temperature resistant fixed disk (i.e. ceramic panel layer) upside to realize that upside heating zone is fast to be warmed up, avoid the downside non-heating zone to receive high temperature influence, secondly through the flexonics of lighting fixture insulating layer and annular lateral wall, avoid vibration of vibration connector to influence high temperature heater (specifically heating fluorescent tube), thereby keep vibration and heating not each other to influence, treat the coupling that test work piece shakes + heat again.
Preferably, the thickness of the ceramic panel layer and the ceramic back plate layer is 4-6 mm, and the thickness of the lamp bracket heat insulation layer is 8-12 mm.
The heating lamp tube is further optimized, a double-hole tube structure is adopted, the whole heating lamp tube is of an L-shaped structure, the cross section of the heating lamp tube is of an infinity-shaped structure, and the number of the heating lamp tubes is not less than 5; the part of the heating lamp tube, which is positioned on the upper side of the high-temperature-resistant fixed disc (namely the ceramic panel layer), is provided with a high infrared short wave quartz radiator so as to generate radiation short waves for heating; the part of the heating lamp tube, which is positioned at the lower side of the high-temperature-resistant fixed disc, is connected with the high Wen Jiexian, and one end of the high-temperature wiring, which is far away from the heating lamp tube, sequentially penetrates through the inner heat insulation layer, the annular side wall, the middle heat insulation layer, the outer heat insulation layer and is connected with the outer wall power supply device.
Preferably, the length of the high infrared short wave quartz radiator (namely the length of the heating effective area) is 200-300 mm.
The method is further optimized, and in order to realize further heat dissipation of the cavity at the lower side of the high-temperature-resistant fixing disc (namely, the ceramic back plate layer), inaccurate test results and even safety accidents caused by high temperature of the cavity at the lower side of the high-temperature-resistant fixing disc (namely, the ceramic back plate layer) are avoided; the annular side wall is positioned at the lower side of the high-temperature-resistant fixed disc (namely the ceramic back plate layer), a plurality of air pipes are uniformly arranged around the central axis of the annular side wall, and the air pipes, the square holes and the reinforcing ribs are all ectopic; one end of the air pipe is communicated with the cavity at the lower side of the high-temperature-resistant fixed disc (namely the ceramic back plate layer), and the other end of the air pipe respectively penetrates through the middle heat insulation layer and the outer heat insulation layer and is communicated with an external air cooling device (the air pipe is divided into an air inlet pipe and an air outlet pipe according to the functions of air inlet and air outlet).
And further optimizing, the transition support rod is fixedly connected with the bottom surface of the high-temperature-resistant fixing disc (namely the bottom surface of the ceramic backboard layer) through a connecting support assembly.
Further optimizing, a heater overtemperature alarm sensor and an overtemperature alarm sensor on the back of the lamp bracket are also arranged in the annular side wall cavity; the test end of the heater overtemperature alarm sensor is positioned between heating lamp tubes on the upper side of the high-temperature-resistant fixed disc (namely the ceramic panel layer), the lower end of the heater overtemperature alarm sensor penetrates through the high-temperature-resistant fixed disc, and a connecting wire is arranged on the lower side of the high-temperature-resistant fixed disc (namely the ceramic panel layer); the back surface overtemperature alarm sensor of the lamp bracket is fixedly arranged on one transition support rod.
The water cooling platform is further optimized, and is connected with the lower mounting plate and the vibrating table through a first threaded hole and a second threaded hole respectively; the first threaded hole is a blind hole from top to bottom, the second threaded hole is a through hole, and the blind hole is arranged to facilitate arrangement of the cooling guide pipe, avoid interference of the threaded hole and the cooling guide pipe, and avoid heat on the vibration coupler to be directly transmitted to the outside through the threaded hole, so that heat on the vibration coupler is effectively prevented from being blocked by the water cooling platform, heat exchange is carried out with the cooling guide pipe, and cooling is achieved.
Preferably, the thickness of the water cooling platform is 18-22 mm.
Preferably, the thickness of the bottom layer heat insulation plate is 3-7 mm.
The invention has the following technical effects:
According to the application, through the cooperation of the vibration connector, the high-temperature heater, the fixed lamp holder and the water cooling platform, on the premise that the vibration connector and the workpiece to be tested vibrate together, the high-temperature heater and the fixed lamp holder are not interfered by vibration (namely do not vibrate together with the vibration connector), so that the heater is prevented from being damaged or other safety accidents caused by the vibration interference of the heater in the high-temperature heating process, the coupling effect of heat and vibration of the planar equipment component is effectively ensured, and the internal heat source system can meet the composite simulation working condition requirement of broadband vibration at about 1200 ℃ and 1-2200 Hz. Meanwhile, the inner cavity of the vibration coupler is divided into the heating area and the non-heating area by the arrangement of the high-temperature-resistant fixing disc (namely, by the matching of the ceramic panel layer, the lamp holder heat insulation layer and the ceramic back plate layer), so that the rapid temperature rise of the heating area is realized, the overflow of the heat of the heating area is avoided, the heat is effectively isolated, the influence of high temperature on the non-heating area is avoided, and heating failure or other safety accidents are caused. The water cooling platform is used for effectively cooling the vibration coupler, so that the problems of large test result error, failure of an internal heat source system test and the like caused by overhigh temperature of the vibration coupler are avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of a flat wall type internal heat source system according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along A-A of fig. 1.
Fig. 3 is a schematic view of a vibration coupler and a fixed lamp holder of a flat wall type internal heat source system according to an embodiment of the present invention.
Fig. 4 is a front view of a high temperature heater and a fixed lamp holder of a flat wall type internal heat source system according to an embodiment of the present invention.
Fig. 5 is a rear view (as opposed to a front view) of a high temperature heater and a stationary lamp holder of a flat wall type internal heat source system according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a water cooling platform of a flat wall type internal heat source system according to an embodiment of the present invention.
Wherein, 10, vibration coupling; 101. an inner insulating layer; 102. an intermediate insulating layer; 103. an outer insulation layer; 104. the heater overtemperature alarm sensor; 105. an overtemperature alarm sensor on the back of the lamp bracket; 106. high-temperature wiring; 11. an upper mounting plate; 12. an annular sidewall; 121. square holes; 122. a bottom layer heat insulation plate; 123. an air duct; 13. a lower mounting plate; 14. reinforcing ribs; 20. a high temperature heater; 21. a high temperature resistant fixed disk; 210. a connecting bracket assembly; 211. a ceramic panel layer; 212. a lamp holder heat insulation layer; 213. a ceramic backing layer; 22. a lamp tube fixture; 23. heating the lamp tube; 30. fixing the lamp holder; 31. a transition support rod; 310. a flexible insulating sheath; 32. a universal support truss; 40. a water cooling platform; 41. a cooling conduit; 42. a first threaded hole; 43. a second threaded hole; 50. and (5) testing the workpiece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples:
As shown in fig. 1 to 6, a flat wall type internal heat source system for vibration under ultra-high temperature conditions is characterized in that: comprises a vibration connector 10, a high-temperature heater 20, a fixed lamp bracket 30 and a water cooling platform 40; the vibration coupler 10 is an integrated structure and comprises an upper mounting plate 11, an annular side wall 12, a lower mounting plate 13 and reinforcing ribs 14, wherein the middle parts of the upper mounting plate 11 and the lower mounting plate 13 are respectively provided with a through hole, the bottom surface of the upper mounting plate 11 is fixedly connected with the top surface of the lower mounting plate 13 through the annular side wall 12, and the diameter of the through hole of the lower mounting plate 13 is larger than that of the through hole of the upper mounting plate 11 (as shown in fig. 2); the central axes of the upper mounting plate 11, the annular side wall 12 and the lower mounting plate 13 are collinear, a plurality of reinforcing ribs 14 are uniformly arranged on the outer ring of the annular side wall 12 around the central axis of the annular side wall (the number of the reinforcing ribs 14 is determined according to the specific vibration simulation situation), and the reinforcing ribs 14 are fixedly connected with the upper mounting plate 11 and the lower mounting plate 13 respectively; the upper end face of the upper mounting plate 11 is provided with a workpiece 50 to be tested, and the central axis of the workpiece 50 to be tested is collinear with the central axis of the through hole of the upper mounting plate 11.
The high temperature heater 20 is arranged in a cavity formed by the upper mounting plate 11, the lower mounting plate 13 and the annular side wall 12, and comprises a high temperature resistant fixing plate 21, a lamp tube clamp 22 and a heating lamp tube 23, wherein the high temperature resistant fixing plate 21 sequentially comprises a ceramic panel layer 211, a lamp holder heat insulation layer 212 and a ceramic back plate layer 213 from top to bottom, the central axes of the ceramic panel layer 211, the lamp holder heat insulation layer 212 and the ceramic back plate layer 213 are collinear with the central axes of the annular side wall 12, the diameters of the ceramic panel layer 211 and the ceramic back plate layer 213 are smaller than the inner diameters of the annular side wall 12 (namely, the outer walls of the ceramic panel layer 211 and the ceramic back plate layer 213 are not contacted with the inner wall of the annular side wall 12, so that heat transfer is avoided), and the outer wall of the lamp holder heat insulation layer 212 is flexibly connected with the inner wall of the annular side wall 12 (particularly, the outer wall of the lamp holder heat insulation layer 212 is flexibly connected with the inner wall of the inner heat insulation layer 101 as shown in fig. 2). By adopting the arrangement of the ceramic panel layer 211 and the ceramic back plate layer 213, firstly, infrared rays radiated by the heating lamp tubes 23 arranged on the upper side of the ceramic panel layer 211 are reflected, so that heat is effectively accumulated on the upper side of the high-temperature-resistant fixed disc 21 (namely the ceramic panel layer 211), rapid temperature rise of a workpiece 50 to be tested is realized, and meanwhile, the temperature of the lower side of the high-temperature-resistant fixed disc 21 (namely the ceramic back plate layer 213) is effectively reduced, and the influence of high temperature on a non-heating zone is avoided; secondly, the ceramic laminate can prevent deformation, so that inaccurate test results and even safety accidents caused by the heated deformation of the high-temperature-resistant fixing disc 21 in the high-temperature heating process are avoided. The lamp holder heat insulation layer 212 is adopted, firstly, the lamp holder heat insulation layer 212 is matched with the ceramic panel layer 211 and the ceramic bottom surface layer 213, heat generated by a heating lamp tube is further accumulated on the upper side of the high-temperature-resistant fixed disc 21 (namely the ceramic panel layer 211) so as to realize rapid temperature rise of an upper heating zone and avoid high-temperature influence of a lower non-heating zone, and secondly, the lamp holder heat insulation layer 212 is flexibly connected with the annular side wall 12 so as to avoid the vibration of the vibration connector 10 from influencing the high-temperature heater 20 (particularly the heating lamp tube 23), so that the vibration and the heating are not influenced, and vibration and heat coupling is carried out on the workpiece 50 to be tested; the thickness of each of the ceramic panel layer 211 and the ceramic back plate layer 213 is 4 to 6mm (preferably 5 mm), and the thickness of the lamp holder heat insulating layer 212 is 8 to 12mm (preferably 10 mm). The two ends of the upper end surface of the high-temperature-resistant fixed disc 21 are respectively fixedly provided with a lamp tube clamp 22, a plurality of heating lamp tubes 23 are uniformly arranged in the middle of the upper end surface of the high-temperature-resistant fixed disc 21 and positioned between the two lamp tube clamps 22, the heating lamp tubes 23 are mutually parallel (the heating lamp tubes 23 adopt quartz outer tubes), the two ends of the heating lamp tubes 23 are respectively fixed by the lamp tube clamps 22 at the two ends, and one end of the heating lamp tube 23 penetrates through the high-temperature-resistant fixed disc 21 and is positioned in a cavity at the lower side of the high-temperature-resistant fixed disc 21; specifically, the heating lamp tubes 23 adopt a double-hole tube structure, the whole of the heating lamp tubes 23 is in an L-shaped structure, and the cross sections of the heating lamp tubes are in an + -shaped structure (namely, one ends of the L-shaped corners of the heating lamp tubes 23 penetrate through the high-temperature-resistant fixed disc 21 after being fixed by the corresponding lamp tube clamps 22 and are positioned in a cavity at the lower side of the high-temperature-resistant fixed disc 21, as shown in fig. 2 and 4), and the number of the heating lamp tubes 23 is not less than 5 (6 in fig. 4, and the number is determined according to specific heating temperature and the size of the heating lamp tubes 23); the part of the heating lamp tube 23, which is positioned on the upper side of the high-temperature resistant fixed disk 21 (i.e. the ceramic panel layer 211), is provided with a high infrared short wave quartz radiator, so that radiation short waves are generated to realize heating, and the length of the high infrared short wave quartz radiator (i.e. the length of a heating effective area) is 200-300 mm (preferably 250 mm); the part of the heating lamp tube 23 positioned at the lower side of the high temperature resistant fixed disk 21 is connected with a height Wen Jiexian (namely, one end part of an L-shaped corner of the heating lamp tube 23), and one end of the height Wen Jiexian away from the heating lamp tube 23 sequentially penetrates through the inner heat insulation layer 101, the annular side wall 12, the middle heat insulation layer 102 and the outer heat insulation layer 103 and is connected with an outer wall power supply device.
The annular side wall 12 is located high temperature resistant fixed disk 21 downside and around its axis symmetry offer a plurality of square holes 121, square hole 121 and strengthening rib 14 dystopy (i.e. square hole 121 and strengthening rib 14 do not interfere each other), fixed lighting fixture 30 includes transition bracing piece 31 and general support truss 32, transition bracing piece 31 corresponds with square hole 121, transition bracing piece 31 both ends run through two square holes 121 of mutual symmetry respectively and with general support truss 32 fixed connection, transition bracing piece 31 is located the part of cavity and high temperature resistant fixed disk 21 (i.e. ceramic backplate layer 213) lower terminal surface through linking bridge module 210 fixed connection (as shown in fig. 5).
The upper end surface of the water cooling platform 40 is fixedly connected with the lower end surface of the lower mounting plate 13, a plurality of cooling pipes 41 are uniformly arranged in the water cooling platform 40, and the lower end surface of the water cooling platform 40 is fixedly connected with the vibrating table; the water cooling platform 40 is respectively connected with the lower mounting plate 13 and the vibrating table by a first threaded hole 42 and a second threaded hole 43; the first threaded hole 42 is a blind hole from top to bottom, the second threaded hole 43 is a through hole, and the blind hole is provided to facilitate arrangement of the cooling conduit 41, avoid interference between the threaded hole and the cooling conduit 41, and avoid heat on the vibration coupler 10 from being directly transferred to the outside through the threaded hole, so that heat on the vibration coupler 10 is effectively blocked by the water cooling platform 40, heat exchange with the cooling conduit 40 is achieved, and cooling is achieved. The thickness of the water cooling platform 40 is 18 to 22mm, preferably 20mm.
The inner wall of the annular side wall 12 is uniformly provided with an inner heat insulation layer 101, the outer wall of the annular side wall 12 is uniformly wrapped with an intermediate heat insulation layer 102, the upper end of the upper mounting plate 11 and the outer wall of the reinforcing rib 14 are uniformly provided with an outer heat insulation layer 103 (shown in fig. 2), a flexible heat insulation sheath 310 is wrapped between the transition support rod 31 and the square hole 121 (shown in fig. 1 and 2), a bottom heat insulation plate 122 is arranged in a cavity between the water cooling platform 40 and the transition support rod 31, the thickness of the bottom heat insulation plate 122 is 3-7 mm (preferably 5 mm), the bottom heat insulation plate 122 is parallel to the upper mounting plate 11, and the periphery of the bottom heat insulation plate 122 is fixedly connected with the inner wall of the inner heat insulation layer 101.
In order to realize further heat dissipation of the cavity at the lower side of the high-temperature-resistant fixing disc 21 (namely, the ceramic back plate layer 213), inaccurate test results and even safety accidents caused by high temperature of the cavity at the lower side of the high-temperature-resistant fixing disc 21 (namely, the ceramic back plate layer 213) are avoided; the annular side wall 12 is positioned at the lower side of the high-temperature-resistant fixed disc 21 (namely the ceramic back plate layer 213), and a plurality of air pipes 123 are uniformly arranged around the central axis of the annular side wall 12, and the air pipes 123 are located at different positions with the square holes 121 and the reinforcing ribs 14 (namely the air pipes 123 are not interfered with the square holes 121 and the reinforcing ribs 14); one end of the air duct 123 is communicated with the cavity at the lower side of the high temperature resistant fixing plate 21 (i.e. the ceramic back plate layer 213), and the other end of the air duct 123 respectively penetrates through the middle heat insulation layer 102 and the outer heat insulation layer 103 and is communicated with the external air cooling device (the air duct 123 is divided into an air inlet duct and an air outlet duct according to the functions of air inlet and air outlet, i.e. the air duct 123 arranged on the annular side wall 12 is divided into the air inlet duct and the air outlet duct, and the air outlet duct and the air inlet and the air outlet of the external air cooling device are divided into the air outlet duct and the air inlet duct according to the air inlet and the air outlet of the external air cooling device, which can be understood by those skilled in the art, and the specific embodiments of the application are not excessively discussed).
The cavity of the annular side wall 12 is also provided with a heater overtemperature alarm sensor 104 and a lamp holder back overtemperature alarm sensor 105; the test end of the heater overtemperature alarm sensor 104 is positioned between the heating lamp tubes 23 on the upper side of the high-temperature-resistant fixed disk 21 (i.e. the ceramic panel layer 211), the lower end of the heater overtemperature alarm sensor penetrates through the high-temperature-resistant fixed disk 21, and a connecting wire is arranged on the lower side of the high-temperature-resistant fixed disk 21 (i.e. the ceramic back panel layer 213); the rear surface overtemperature alarm sensor 105 of the lamp bracket is fixedly arranged on a transition supporting rod 31 (shown in fig. 2 and 5).
Preferably, the lamp stand heat insulation layer 212, the flexible heat insulation sheath 310, the outer heat insulation layer 103, the inner heat insulation layer 101, the middle heat insulation layer 102 and the bottom heat insulation plate 122 are all made of fiber reflection type materials; the fiber reflection type material is formed by alternately stacking and layering a heat insulation layer and a reflection layer and is coated by adopting fiber cloth, and the heat insulation layer is one or more of aluminum silicate fibers, magnesium silicate fibers, aerogel felts and ceramic fiber felts; the reflecting layer adopts one or more of molybdenum foil, nickel foil, stainless steel foil, aluminum foil and double-sided aluminized polyimide film.
Working principle:
In use, the workpiece 50 to be tested is fixedly mounted on the upper end surface of the upper mounting plate 11 and positioned between the outer heat insulation layers 103 as shown in fig. 2, and the bottom surface of the workpiece 50 to be tested and the top surface of the upper mounting plate 11 are ensured to form a seal. Then starting a vibration table to drive the water cooling platform 40 and the vibration connector 10 to vibrate together, so as to drive the workpiece 50 to be tested on the vibration connector 10 to vibrate, and simulating vibration conditions, starting a high infrared short wave quartz radiator, wherein the wavelength of the high infrared short wave quartz radiator is between 0.75 and 1.4 mu m, and the filament adopts tungsten filament and lamp tube sealing vacuumizing treatment and is internally filled with special protective gas; the specific wavelength characteristic of the short waves enables the penetrating power of heating to be stronger, the reaction time to be quicker, the temperature of the filament can reach 1800-2400 ℃, and meanwhile, the quartz outer tube can continuously and stably work in an environment with the temperature of more than 1000 ℃ and has good chemical corrosion resistance; the high infrared short wave quartz radiator radiates outwards to heat the workpiece 50 to be tested, and meanwhile, due to the cooperation of the ceramic panel layer 211, the lamp holder heat insulation layer 212 and the ceramic back plate layer 213, heat overflow is effectively avoided, the temperature in the cavity between the high temperature resistant fixed disc 21 and the workpiece 50 to be tested is rapidly increased to reach the simulation temperature, and internal heat environment simulation of the workpiece 50 to be tested is realized. Because the high temperature resistant fixed disk 21 is supported and fixed through the transition supporting rod 31, the transition supporting rod 31 is fixedly connected with the universal supporting truss 32 (the universal supporting truss 32 is fixedly arranged in the environment simulation test box), the transition supporting rod 31 is flexibly connected with the square hole 121, and the lamp holder heat insulation layer 212 is flexibly connected with the annular side wall 12, the vibration of the vibration coupler 10 can not cause the vibration of the fixed lamp holder 30, and further the vibration of the high temperature heater 20, so that the effective coupling of heat and vibration is realized. During the thermo-vibration coupling process, cooling of the entire vibration coupler 10 is achieved by introducing cooling water into the cooling conduit 41, avoiding overheating of the vibration coupler 10.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. A flat wall internal heat source system for vibration at ultra-high temperatures, characterized by: comprises a vibration connector (10), a high-temperature heater (20), a fixed lamp bracket (30) and a water cooling platform (40); the vibration coupler (10) is of an integrated structure and comprises an upper mounting plate (11), an annular side wall (12), a lower mounting plate (13) and reinforcing ribs (14), wherein a through hole is formed in the middle of the upper mounting plate (11) and the middle of the lower mounting plate (13), the bottom surface of the upper mounting plate (11) is fixedly connected with the top surface of the lower mounting plate (13) through the annular side wall (12), the upper mounting plate (11), the annular side wall (12) and the central axis of the lower mounting plate (13) are collinear, a plurality of reinforcing ribs (14) are uniformly arranged on the outer ring of the annular side wall (12) around the central axis of the annular side wall, and the reinforcing ribs (14) are fixedly connected with the upper mounting plate (11) and the lower mounting plate (13) respectively; the high-temperature heater (20) is arranged in a cavity formed by the upper mounting plate (11), the lower mounting plate (13) and the annular side wall (12), and comprises a high-temperature-resistant fixing plate (21), lamp clamps (22) and heating lamps (23), wherein the two ends of the upper end face of the high-temperature-resistant fixing plate (21) are respectively fixedly provided with one lamp clamp (22), a plurality of heating lamps (23) are uniformly arranged in the middle of the upper end face of the high-temperature-resistant fixing plate (21) and between the two lamp clamps (22) and are mutually parallel, two ends of the heating lamps (23) are respectively fixed by the lamp clamps (22) at the two ends, and one end of each heating lamp (23) penetrates through the high-temperature-resistant fixing plate (21) and is positioned in the cavity at the lower side of the high-temperature-resistant fixing plate (21); the annular side wall (12) is positioned at the lower side of the high-temperature-resistant fixed disc (21) and is symmetrically provided with a plurality of square holes (121) around the central axis, the square holes (121) are in different positions with the reinforcing ribs (14), the fixed lamp bracket (30) comprises a transition supporting rod (31) and a universal supporting truss (32), the transition supporting rod (31) corresponds to the square holes (121), two ends of the transition supporting rod (31) respectively penetrate through the two mutually symmetrical square holes (121) and are fixedly connected with the universal supporting truss (32), and the part of the transition supporting rod (31) positioned in the cavity is fixedly connected with the lower end face of the high-temperature-resistant fixed disc (21); the upper end face of the water cooling platform (40) is fixedly connected with the lower end face of the lower mounting plate (13), a plurality of cooling pipes (41) are uniformly arranged in the water cooling platform (40), and the lower end face of the water cooling platform (40) is fixedly connected with the vibrating table; the utility model discloses a heat insulating device, including annular lateral wall (12) inner wall, heat insulating layer (101) and annular lateral wall (12) outer wall evenly set up middle insulating layer (102), go up mounting disc (11) upper end and strengthening rib (14) outer wall evenly set up outer insulating layer (103), parcel flexible heat insulating sheath (310) between transition bracing piece (31) and square hole (121), set up bottom heat insulating board (122) in the cavity between water-cooling platform (40) and transition bracing piece (31), bottom heat insulating board (122) are parallel and bottom heat insulating board (122) all around with interior insulating layer (101) inner wall fixed connection with last mounting disc (11).
2. A flat wall internal heat source system for vibration at ultra-high temperatures as claimed in claim 1, wherein: the upper end face of the upper mounting plate (11) is provided with a workpiece (50) to be tested, and the central axis of the workpiece (50) to be tested is collinear with the central axis of the upper mounting plate (11).
3. A flat wall type internal heat source system for vibration under ultra-high temperature conditions according to claim 1 or 2, wherein: the diameter of the through hole of the lower mounting disc (13) is larger than that of the through hole of the upper mounting disc (11).
4. A flat wall internal heat source system for vibration at ultra-high temperatures as claimed in claim 3, wherein: the high-temperature-resistant fixing disc (21) sequentially comprises a ceramic panel layer (211), a lamp holder heat-insulating layer (212) and a ceramic back plate layer (213) from top to bottom, wherein the central axis of the ceramic panel layer (211), the lamp holder heat-insulating layer (212) and the ceramic back plate layer (213) are collinear with the central axis of the annular side wall (12), the diameter of the ceramic panel layer (211) and the diameter of the ceramic back plate layer (213) are smaller than the inner side diameter of the annular side wall (12), and the outer wall of the lamp holder heat-insulating layer (212) is flexibly connected with the inner wall of the annular side wall (12).
5. A flat wall internal heat source system for vibration at ultra-high temperatures as recited in claim 4, wherein: the heating lamp tubes (23) adopt a double-hole tube structure, the whole heating lamp tube is of an L-shaped structure, the cross section of the heating lamp tube is of an + -shaped structure, and the number of the heating lamp tubes (23) is not less than 5; the part of the heating lamp tube (23) positioned on the upper side of the high-temperature resistant fixed disc (21) is provided with a high infrared short wave quartz radiator; the wavelength of the high infrared short wave quartz radiator is between 0.75 and 1.4 mu m, the filament is subjected to vacuum pumping treatment by adopting a tungsten filament and a lamp tube in a sealing way, the temperature of the filament reaches 1800 to 2400 ℃, and meanwhile, the quartz outer tube can continuously and stably work in an environment with the temperature of more than 1000 ℃; the part of the heating lamp tube (23) positioned at the lower side of the high-temperature-resistant fixed disc (21) is connected with the high Wen Jiexian (106), and one end of the high-temperature wiring (106) far away from the heating lamp tube (23) sequentially penetrates through the inner heat insulation layer (101), the annular side wall (12), the middle heat insulation layer (102) and the outer heat insulation layer (103) and is connected with the outer wall power supply device.
6. A flat wall internal heat source system for vibration at ultra-high temperatures as claimed in claim 1, wherein: the annular side wall (12) is positioned at the lower side of the high-temperature-resistant fixed disc (21), a plurality of air pipes (123) are uniformly arranged around the central axis of the annular side wall (12), and the air pipes (123), the square holes (121) and the reinforcing ribs (14) are in different positions; one end of the air pipe (123) is communicated with the cavity at the lower side of the high-temperature-resistant fixed disc (21), and the other end of the air pipe respectively penetrates through the middle heat insulation layer (102) and the outer heat insulation layer (103) and is communicated with an external air cooling device.
7. A flat wall internal heat source system for vibration at ultra-high temperatures as claimed in claim 1, wherein: the transition support rod (31) is fixedly connected with the bottom surface of the high-temperature-resistant fixed disc (21) through a connecting support assembly (210).
8. A flat wall internal heat source system for vibration at ultra-high temperatures as claimed in claim 1, wherein: the water cooling platform (40) is connected with the lower mounting plate (13) and the vibrating table through a first threaded hole (42) and a second threaded hole (43) respectively; the first threaded hole (42) is a blind hole from top to bottom, and the second threaded hole (43) is a through hole.
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| CN214749499U (en) * | 2021-04-26 | 2021-11-16 | 北京博科测试系统股份有限公司 | Cooling system of vibration test bed |
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| GB2031160A (en) * | 1978-10-05 | 1980-04-16 | Derritron Electronics Ltd | Environmental testing apparatus |
| CN108680487A (en) * | 2018-05-17 | 2018-10-19 | 罗杰敏 | A kind of building block heat-resisting resistance to compression detection device safely |
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| CN114904597A (en) | 2022-08-16 |
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