CN114904597A - Flat-wall type internal heat source system for vibrating under ultrahigh temperature condition - Google Patents
Flat-wall type internal heat source system for vibrating under ultrahigh temperature condition Download PDFInfo
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- CN114904597A CN114904597A CN202210654980.1A CN202210654980A CN114904597A CN 114904597 A CN114904597 A CN 114904597A CN 202210654980 A CN202210654980 A CN 202210654980A CN 114904597 A CN114904597 A CN 114904597A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
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- 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
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- 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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- 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
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- B01L2300/1894—Cooling means; Cryo cooling
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Abstract
The invention provides a flat-wall type internal heat source system for vibration under an ultrahigh temperature condition, which comprises a vibration coupler (10), a high-temperature heater (20), a fixed lamp holder (30) and a water cooling platform (40); the vibration coupler (10) is of an integrally formed structure and comprises an upper mounting disc (11), an annular side wall (12), a lower mounting disc (13) and reinforcing ribs (14), a high-temperature heater (20) comprises a high-temperature-resistant fixing disc (21), a lamp tube clamp (22) and a heating lamp tube (23), a fixing lamp bracket (30) comprises a transition supporting rod (31) and a universal supporting truss (32), and a cooling guide pipe (41) is arranged in a water cooling platform (40). The system can provide internal heat and high temperature for an object to be detected under the vibration condition, realize effective coupling of heat and vibration, simultaneously, the system can effectively avoid heat overflow of an internal environment, can also cool a non-heating area in the heating process, and avoid serious aging and even failure of parts in the non-heating area.
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 ultrahigh-temperature condition.
Background
Under the interaction of various natural environment factors and mechanical environment factors, the functions, the performances and the service life of the equipment are affected, so that the functions, the performances and the service life of the equipment are reduced, and even the normal working capacity of the equipment is lost, so that various accidents occur. Therefore, in the equipment research and development process, the equipment is usually required to be subjected to an environment simulation test so as to investigate the environmental adaptability of the equipment and the material thereof, expose the product environment failure mode, evaluate the storage/service life of the product and the like; and further, effective test data support is provided for the research and development design of structures, materials and the like of the equipment, and technical support is provided for the application of subsequent equipment.
However, the current environmental test simulation system has single research factors and incomplete simulated environmental factors, and cannot completely simulate the complex working conditions of equipment in the actual use environment. For example, the existing equipment power cabin is vibrated and is in an internal heat environment above 800 ℃ during actual use, but the simulated temperature of the existing temperature-humidity-vibration comprehensive simulation test equipment can only reach 300 ℃ at most in the vibration process (mainly, the existing environment comprehensive simulation test equipment is easy to overflow heat in the vibration process, if the external equipment is affected by heating to high temperature, the heater is required to be heated to a temperature much higher than the required temperature to cause energy waste), and the simulated environment temperature is only the atmospheric temperature rather than the internal heat environment temperature in the actual working condition; therefore, the difference between the simulated temperature in the vibration process and the actual use process of the equipment of the conventional environment simulation equipment is large, and the performance of the equipment cannot be accurately and effectively evaluated, so that effective technical support cannot be provided for subsequent research, development, design and use.
Disclosure of Invention
In view of the problems in the prior art, an object of the present invention is to provide a flat-wall type internal heat source system for vibrating under an ultra-high temperature condition, which can provide internal heat and high temperature to an object to be detected under a vibrating condition, and at the same time, can effectively avoid the heat of an internal environment from overflowing, and ensure the effectiveness of heating, and in the internal environment heating process, the system can also effectively cool other components (i.e., non-heating area components) of a test system, and avoid serious aging and even failure of other components (i.e., non-heating area components) of the test system.
The purpose of the invention is realized by the following technical scheme:
a flat-wall type internal heat source system for vibrating under ultra-high temperature conditions, characterized in that: the device comprises a vibration coupler, a high-temperature heater, a fixed lamp holder and a water-cooling platform; the vibration coupler is of an integrally formed structure and comprises an upper mounting disc, an annular side wall, a lower mounting disc and reinforcing ribs, wherein a through hole is formed in the middle of each of the upper mounting disc and the lower mounting disc, the bottom surface of the upper mounting disc and the top surface of the lower mounting disc are fixedly connected through the annular side wall, the central axes of the upper mounting disc, the annular side wall and the lower mounting disc are collinear, a plurality of reinforcing ribs are uniformly arranged on the outer ring of the annular side wall and around the central axis of the annular side wall, and the reinforcing ribs are fixedly connected with the upper mounting disc and the lower mounting disc respectively; 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 disc, lamp tube clamps and heating lamp tubes, wherein two ends of the upper end face of the high-temperature-resistant fixing disc are respectively fixedly provided with one lamp tube clamp; the annular side wall is positioned at the lower side of the high-temperature resistant fixing disc and is symmetrically provided with a plurality of square holes around the central axis of the annular side wall, the square holes are different from the reinforcing ribs, the fixing lamp frame 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, which is positioned in the cavity, is fixedly connected with the lower end face of the high-temperature resistant fixing disc; the upper end surface of the water-cooling platform is fixedly connected with the lower end surface of the lower mounting plate, a plurality of cooling guide pipes are uniformly arranged in the water-cooling platform, and the lower end surface of the water-cooling platform is fixedly connected with the vibration table; the annular side wall inner wall evenly sets up interior heat insulating layer and annular side wall outer wall evenly wraps up middle heat insulating layer, go up mounting disc upper end and strengthening rib outer wall and evenly set up outer heat insulating layer, wrap up flexible thermal-insulated sheath between transition bracing piece and the quad slit, set up the bottom heat insulating board in the cavity between water-cooling platform and the transition bracing piece, the bottom heat insulating board is parallel with last mounting disc and bottom heat insulating board all around with interior heat insulating layer inner wall fixed connection.
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.
Preferably, the diameter of the through hole of the lower mounting plate is larger than that of the through hole of the upper mounting plate.
Further optimization is carried out, the high-temperature-resistant fixing disc is a ceramic panel layer, a lamp holder heat-insulating layer and a ceramic back plate layer from top to bottom in sequence, the central axes 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, and the diameters of the ceramic panel layer and the ceramic back plate layer are smaller than the diameter of the inner side 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 plate layer is adopted, firstly, infrared rays radiated by a heating lamp tube arranged on the upper side of the ceramic panel layer are reflected, so that heat is effectively gathered on the upper side of the high-temperature-resistant fixed disk (namely the ceramic panel layer), the rapid temperature rise of a workpiece to be tested is realized, meanwhile, the temperature of the lower side of the high-temperature-resistant fixed disk (namely the ceramic back plate layer) is effectively reduced, and the influence of high temperature on a non-heating area is avoided; and secondly, the ceramic laminate can prevent deformation, so that inaccurate test results and even safety accidents caused by the thermal deformation of the high-temperature resistant fixing disc in the high-temperature heating process are avoided. Adopt the lighting fixture insulating layer, firstly with ceramic panel layer, the cooperation of pottery bottom surface layer, further with the heat gathering that the heating fluorescent tube produced at high temperature resistant fixed disk (ceramic panel layer promptly) upside, in order to realize the quick intensification of the upside zone of heating, avoid the non-zone of heating of downside to receive the high temperature influence, secondly through the flexonics of lighting fixture insulating layer and annular sidewall, the vibration of avoiding the vibration coupler influences high temperature heater (specifically is the heating fluorescent tube), thereby guarantee vibration and heating each other not influence, again to the trial work piece that awaits measuring vibrate + hot coupling.
Preferably, the thicknesses of the ceramic panel layer and the ceramic back plate layer are both 4-6 mm, and the thickness of the heat insulation layer of the lamp holder is 8-12 mm.
Further optimization is carried out, the heating lamp tube adopts 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 infinity-shaped structure, and no less than 5 heating lamp tubes are arranged; the part of the heating lamp tube, which is positioned at the upper side of the high-temperature resistant fixed disk (namely the ceramic panel layer), is provided with a high-infrared short-wave quartz radiator so as to generate radiation short waves to realize heating; the part of the heating lamp tube, which is positioned on the lower side of the high-temperature resistant fixing disc, is connected with a high-temperature wiring, and one end, which is far away from the heating lamp tube, of the high-temperature wiring sequentially penetrates through the inner heat insulation layer, the annular side wall, the middle heat insulation layer and the outer heat insulation layer and is connected with the outer wall power supply device.
Preferably, the length (namely the length of the heating effective area) of the high-infrared short-wave quartz radiator is 200-300 mm.
The heat dissipation device is further optimized, in order to realize further heat dissipation of the cavity at the lower side of the high-temperature-resistant fixed disc (namely, the ceramic backboard layer), and the inaccurate test result and even safety accidents caused by the high temperature of the cavity at the lower side of the high-temperature-resistant fixed disc (namely, the ceramic backboard layer) are avoided; the annular side wall is positioned at the lower side of the high-temperature resistant fixed disk (namely the ceramic backboard 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 in different positions; the tuber pipe one end and high temperature resistant fixed disk (ceramic backplate layer) downside cavity intercommunication, the other end runs through middle insulating layer, outer insulating layer respectively and communicates with outside air cooling device (divide into the air-supply line with the tuber pipe and go out the tuber pipe according to the function of air inlet and air-out).
In a further optimization, the transition support rod is fixedly connected with the bottom surface of the high-temperature-resistant fixed disk (namely the bottom surface of the ceramic backboard layer) through a connecting support component.
Further optimization, a heater overtemperature alarm sensor and a lamp holder back overtemperature alarm sensor are also arranged in the annular side wall cavity; the testing end of the heater over-temperature alarm sensor is positioned between the heating lamp tubes on the upper side of the high-temperature resistant fixed disk (namely the ceramic panel layer), the lower end of the testing end penetrates through the high-temperature resistant fixed disk, and a connecting lead is arranged on the lower side of the high-temperature resistant fixed disk (namely the ceramic back plate layer); the overtemperature alarm sensor at the back of the lamp holder is fixedly arranged on one transition support rod.
For further optimization, the water-cooling platform is respectively connected with the lower mounting disc and the vibrating table through arranging a first threaded hole and a second threaded hole; first screw hole is the blind hole from top to bottom, the second screw hole is the through-hole, sets up the blind hole and is convenient for the arrangement of cooling pipe, avoids screw hole and cooling pipe to interfere, secondly avoids the heat on the vibration connector directly to transmit the external world through the screw hole, thereby effectively ensures that the heat on the vibration connector is by the separation of water-cooling platform, thereby carries out the heat exchange, realizes the cooling with the cooling pipe.
Preferably, the thickness of the water-cooling platform is 18-22 mm.
Preferably, the thickness of the bottom heat insulation plate is 3-7 mm.
The invention has the following technical effects:
the cooperation of vibration coupler, high temperature heating ware, fixed lighting fixture and water-cooling platform is passed through in this application, under the limited prerequisite that realizes vibration coupler and the work piece common vibration that awaits measuring, high temperature heating ware does not receive vibration interference (not following the vibration coupler promptly and vibrating together), avoid high temperature heating in-process vibration to disturb the heater and appear heater damage or other incident, thereby effectively ensure to equip the hot-coupling effect who shakes of component to the plane, heat source system can satisfy about 1200 ℃, the compound simulation operating mode demand of 1 ~ 2200Hz wide band vibration in this application. Simultaneously, this application is through the setting of high temperature resistant fixed disk (through the cooperation of ceramic panels layer, lighting fixture insulating layer, ceramic backsheet layer promptly), divide into the zone of heating and the non-zone of heating with the vibration coupling inner chamber, on the realization rapid heating up of the zone of heating, avoid the excessive basis of zone of heating heat, effectively isolated heat again simultaneously, avoid the influence of high temperature to the non-zone of heating, cause heating inefficacy or other incident. The effective cooling of the vibration coupler is realized through the water cooling platform, and the problems that the test result error is large or the test of an internal heat source system fails and the like due to 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 sectional view taken along line a-a of fig. 1.
Fig. 3 is a schematic structural view of a vibration coupler and a fixed lamp holder of the flat-wall type internal heat source system according to the embodiment of the present invention.
Fig. 4 is a front view illustrating a high temperature heater and a fixed lamp holder of the flat wall type internal heat source system according to the embodiment of the present invention.
Fig. 5 is a rear view (opposite to the front view) of the high temperature heater and the fixed lamp holder of the flat wall type internal heat source system according to the 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.
10, a vibration coupler; 101. an inner insulating layer; 102. an intermediate heat-insulating layer; 103. an outer insulating layer; 104. a heater overtemperature alarm sensor; 105. the back of the lamp bracket is provided with an overtemperature alarm sensor; 106. high-temperature wiring; 11. an upper mounting plate; 12. an annular sidewall; 121. a square hole; 122. a bottom layer heat insulation board; 123. an air duct; 13. a lower mounting plate; 14. reinforcing ribs; 20. a high temperature heater; 21. a high temperature resistant fixing disc; 210. a connecting bracket assembly; 211. a ceramic panel layer; 212. a heat insulation layer of the lamp bracket; 213. a ceramic backing layer; 22. a lamp tube clamp; 23. heating the lamp tube; 30. a fixed lamp holder; 31. a transition support bar; 310. a flexible heat 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. a workpiece to be tested.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example (b):
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 coupler 10, a high-temperature heater 20, a fixed lamp holder 30 and a water-cooling platform 40; the vibration coupler 10 is of an integrally formed structure and comprises an upper mounting disc 11, an annular side wall 12, a lower mounting disc 13 and reinforcing ribs 14, wherein through holes are formed in the middle parts of the upper mounting disc 11 and the lower mounting disc 13, the bottom surface of the upper mounting disc 11 is fixedly connected with the top surface of the lower mounting disc 13 through the annular side wall 12, and 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 (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 (the number of the reinforcing ribs 14 is determined according to the specific vibration simulation condition) are uniformly arranged on the outer ring of the annular side wall 12 and around the central axis, and the reinforcing ribs 14 are respectively fixedly connected with the upper mounting plate 11 and the lower mounting plate 13; 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 disposed in the upper mounting plate 11, and in the cavity formed by the lower mounting plate 13 and the annular side wall 12, including the high temperature resistant fixing plate 21, the lamp tube clamp 22, and the heating lamp tube 23, the high temperature resistant fixing plate 21 is, in sequence, a ceramic panel layer 211, a lamp holder heat insulation layer 212, a ceramic back plate layer 213 from top to bottom, the ceramic panel layer 211, the lamp holder heat insulation layer 212, the central axis of the ceramic back plate layer 213 and the central axis of the annular side wall 12 are collinear, and the ceramic panel layer 211 and the diameter of the ceramic back plate layer 213 are smaller than the inside diameter of the annular side wall 12 (i.e., the ceramic panel layer 211, the outer wall of the ceramic back plate layer 213 is not in contact with the inner wall of the annular side wall 12, so as to avoid heat transfer), 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 (as shown in fig. 2, specifically, 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). 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 tube 23 arranged on the upper side of the ceramic panel layer 211 are reflected, so that heat is effectively gathered on the upper side of the high-temperature-resistant fixed disk 21 (namely the ceramic panel layer 211), the rapid heating of the workpiece 50 to be tested is realized, meanwhile, the temperature of the lower side of the high-temperature-resistant fixed disk 21 (namely the ceramic back plate layer 213) is effectively reduced, and the influence of high temperature on a non-heating area is avoided; and secondly, the ceramic laminate can prevent deformation, so that inaccurate test results and even safety accidents caused by the thermal 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, and is matched with the ceramic panel layer 211 and the ceramic bottom surface layer 213 to further gather heat generated by the heating lamp tube on the upper side of the high-temperature resistant fixed disk 21 (namely the ceramic panel layer 211) so as to realize rapid temperature rise of an upper heating area and avoid high-temperature influence on a lower non-heating area, and 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 (specifically the heating lamp tube 23), thereby avoiding mutual influence of vibration and heating and carrying out vibration and heat coupling on the workpiece 50 to be tested; the thicknesses of the ceramic panel layer 211 and the ceramic back plate layer 213 are both 4-6 mm (preferably 5 mm), and the thickness of the lamp holder heat insulation layer 212 is 8-12 mm (preferably 10 mm). The two ends of the upper end face of the high-temperature resistant fixed disk 21 are respectively and fixedly provided with a lamp tube clamp 22, the middle part of the upper end face of the high-temperature resistant fixed disk 21 and the position between the two lamp tube clamps 22 are uniformly provided with a plurality of heating lamp tubes 23, the heating lamp tubes 23 are parallel to each other (the heating lamp tubes 23 are quartz outer tubes), the two ends of each heating lamp tube 23 are respectively fixed by the lamp tube clamps 22 at the two ends, and one end of each heating lamp tube 23 penetrates through the high-temperature resistant fixed disk 21 and is positioned in a cavity at the lower side of the high-temperature resistant fixed disk 21; specifically, the heating lamp tube 23 has a double-hole tube structure, and the heating lamp tube 23 has an "L" -shaped structure as a whole and has a cross section of an "∞" -shaped structure (that is, one end of the "L" -shaped corner of the heating lamp tube 23 is fixed by the corresponding lamp tube fixture 22, penetrates through the high-temperature resistant fixed disk 21 and is located in a cavity on the lower side of the high-temperature resistant fixed disk 21, as shown in fig. 2 and 4), and at least 5 heating lamp tubes 23 (6 heating lamp tubes are shown in fig. 4 and are determined according to specific heating temperature and the size of the heating lamp tube 23); a high infrared short wave quartz radiator is arranged at the part of the heating lamp tube 23, which is positioned at the upper side of the high temperature resistant fixed disk 21 (namely the ceramic panel layer 211), so that radiation short waves are generated to realize heating, and the length of the high infrared short wave quartz radiator (namely the length of a heating effective area) is 200-300 mm (preferably 250 mm); the part of the heating lamp 23, which is located on the lower side of the high temperature resistant fixing disc 21, is connected with a high temperature wire 106 (i.e. one end part of the "L" shaped corner of the heating lamp 23), and one end of the high temperature wire 106, which is far away from the heating lamp 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 upper end face of the water-cooling platform 40 is fixedly connected with the lower end face of the lower mounting disc 13, a plurality of cooling guide 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 vibration table; the water-cooling platform 40 is respectively connected with the lower mounting plate 13 and the vibration table through arranging a first threaded hole 42 and a second threaded hole 43; first screw hole 42 is the blind hole from top to bottom, and second screw hole 43 is the through-hole, sets up the blind hole and is convenient for cooling pipe 41 arrange, avoids screw hole and cooling pipe 41 to interfere, and second avoids the heat on the vibration connector 10 directly to transmit the external world through the screw hole, effectively ensures that the heat on the vibration connector 10 is by the separation of water-cooling platform 40, thereby carries out the heat exchange, realizes the cooling with cooling pipe 40. The thickness of the water-cooling platform 40 is 18-22 mm, and preferably 20 mm.
Inner heat insulation layers 101 are uniformly arranged on the inner wall of the annular side wall 12, and heat insulation layers 102 are uniformly wrapped on the outer wall of the annular side wall 12, outer heat insulation layers 103 are uniformly arranged at the upper end of the upper mounting plate 11 and on the outer wall of the reinforcing rib 14 (as shown in fig. 2), flexible heat insulation sheaths 310 are wrapped between the transition support rod 31 and the square hole 121 (as shown in fig. 1 and fig. 2), bottom heat insulation plates 122 are arranged in a cavity between the water cooling platform 40 and the transition support rod 31, the thickness of the bottom heat insulation plates 122 is 3-7 mm (preferably 5 mm), and the bottom heat insulation plates 122 are parallel to the upper mounting plate 11, and the periphery of the bottom heat insulation plates 122 is fixedly connected with the inner heat insulation layers 101.
In order to realize further heat dissipation of the cavity at the lower side of the high-temperature-resistant fixed disk 21 (i.e., 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 fixed disk 21 (i.e., 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 disk 21 (i.e. the ceramic backing plate layer 213), and a plurality of air pipes 123 are uniformly arranged around the central axis of the annular side wall 12, wherein the air pipes 123, the square holes 121 and the reinforcing ribs 14 are in different positions (i.e. the air pipes 123, the square holes 121 and the reinforcing ribs 14 are not interfered with each other); one end of the air pipe 123 is communicated with the lower cavity of the high temperature resistant fixed disk 21 (i.e., the ceramic back plate layer 213), and the other end of the air pipe 123 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 pipe 123 is divided into an air inlet pipe and an air outlet pipe according to the functions of air inlet and air outlet, i.e., the air pipe 123 arranged on the annular side wall 12 is divided into the air inlet pipe and the air outlet pipe, and the air outlet pipe and the air inlet pipe are divided into the air outlet pipe and the air inlet pipe according to the air inlet and the air outlet of the external air cooling device, and those skilled in the art can understand that the specific implementation mode of the present application is not discussed much).
A heater overtemperature alarm sensor 104 and a lamp holder back overtemperature alarm sensor 105 are also arranged in the cavity of the annular side wall 12; the testing 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 (namely, 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 (namely, the ceramic back plate layer 213); the alarm sensor 105 for overtemperature on the back of the lamp holder is fixedly arranged on a transition support rod 31 (as shown in fig. 2 and 5).
Preferably, the lamp holder 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 layer heat insulation plate 122 are made of fiber reflection type materials; the fiber reflection type material is formed by alternately stacking and laying heat insulation layers and reflection layers and is coated by fiber cloth, wherein the heat insulation layers are made of one or more of aluminum silicate fibers, magnesium silicate fibers, aerogel felts and ceramic fiber felts; the reflecting layer is one or more of molybdenum foil, nickel foil, stainless steel foil, aluminum foil and double-sided aluminum-plated polyimide film.
The working principle is as follows:
when the device is used, 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 meanwhile, the bottom surface of the workpiece 50 to be tested and the top surface of the upper mounting plate 11 are ensured to form sealing. Then starting the vibration table to drive the water cooling platform 40 to vibrate together with the vibration coupler 10, thereby driving the workpiece to be tested 50 on the vibration coupler 10 to vibrate, and carrying out vibration working condition simulation, then starting a high infrared short wave quartz radiator, wherein the wavelength of the high infrared short wave quartz radiator is 0.75-1.4 mu m, a filament is subjected to pressure sealing and vacuum pumping treatment by adopting a tungsten filament and a lamp tube, and special protective gas is filled in the filament; the specific wavelength characteristic of the short wave enables the heating penetrating power to be stronger, the reaction time to be faster, the temperature of the filament can reach 1800-2400 ℃, meanwhile, the quartz outer tube can continuously and stably work in the environment of more than 1000 ℃, and the quartz outer tube has good chemical corrosion resistance; the high infrared short wave quartz radiator radiates outwards to heat the workpiece 50 to be tested, meanwhile, due to the matching effect 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 a simulation temperature, and internal heat environment simulation of the workpiece 50 to be tested is achieved. Because the high temperature resistant fixing disc 21 is supported and fixed by the transition support rod 31, the transition support rod 31 is fixedly connected with the general support truss 32 (the general support truss 32 is fixedly arranged in the environment simulation test box), the transition support 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 cannot cause the vibration of the fixing lamp holder 30 and further the vibration of the high temperature heater 20, thereby realizing the effective coupling of heat and vibration. In the thermal-vibration coupling process, the cooling water is introduced into the cooling conduit 41 to cool the entire vibration coupling 10 and prevent the vibration coupling 10 from overheating.
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 attributes 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A flat-wall type internal heat source system for vibrating under ultra-high temperature conditions, characterized in that: comprises a vibration coupler (10), a high-temperature heater (20), a fixed lamp holder (30) and a water-cooling platform (40); the vibration coupler (10) is of an integrally formed structure and comprises an upper mounting disc (11), an annular side wall (12), a lower mounting disc (13) and reinforcing ribs (14), wherein a through hole is formed in the middle of each of the upper mounting disc (11) and the lower mounting disc (13), the bottom surface of the upper mounting disc (11) is fixedly connected with the top surface of the lower mounting disc (13) through the annular side wall (12), the central axes of the upper mounting disc (11), the annular side wall (12) and the lower mounting disc (13) are collinear, a plurality of reinforcing ribs (14) are uniformly arranged on the outer ring of the annular side wall (12) and around the central axis of the annular side wall, and the reinforcing ribs (14) are respectively and fixedly connected with the upper mounting disc (11) and the lower mounting disc (13); 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 disc (21), lamp tube clamps (22) and heating lamp tubes (23), two ends of the upper end face of the high-temperature-resistant fixing disc (21) are respectively and fixedly provided with the lamp tube clamps (22), the middle part of the upper end face of the high-temperature-resistant fixing disc (21) is positioned between the two lamp tube clamps (22), a plurality of heating lamp tubes (23) are uniformly arranged between the two lamp tube clamps (22), the heating lamp tubes (23) are mutually parallel, two ends of each heating lamp tube (23) are respectively fixed by the lamp tube clamps (22) at two ends, and one end of each heating lamp tube (23) penetrates through the high-temperature-resistant fixing disc (21) and is positioned in the cavity on the lower side of the high-temperature-resistant fixing disc (21); the annular side wall (12) is positioned at the lower side of the high-temperature-resistant fixed disk (21) and is symmetrically provided with a plurality of square holes (121) around the central axis of the annular side wall, the square holes (121) are in different positions from the reinforcing ribs (14), the fixed lamp bracket (30) comprises a transition support rod (31) and a universal support truss (32), the transition support rod (31) corresponds to the square holes (121), two ends of the transition support rod (31) respectively penetrate through the two symmetrical square holes (121) and are fixedly connected with the universal support truss (32), and the part of the transition support rod (31) positioned in the cavity is fixedly connected with the lower end face of the high-temperature-resistant fixed disk (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 guide 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 vibration table; insulating layer (102) in the middle of insulating layer (101) and the even parcel of annular lateral wall (12) outer wall in the even setting of annular lateral wall (12) inner wall, go up mounting disc (11) upper end and strengthening rib (14) outer wall and evenly set up outer insulating layer (103), parcel flexible thermal-insulated sheath (310) between transition bracing piece (31) and quad slit (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) and last mounting disc (11) parallel and bottom heat insulating board (122) are around with inner insulating layer (101) inner wall fixed connection.
2. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to claim 1, characterized in that: the upper end surface 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, characterized in that: 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. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to any one of claims 1 to 3, characterized in that: high temperature resistant fixed disk (21) is ceramic panels layer (211), lighting fixture insulating layer (212), ceramic backsheet layer (213) from top to bottom in proper order, the axis of ceramic panels layer (211), lighting fixture insulating layer (212), ceramic backsheet layer (213) and the diameter of annular lateral wall (12) axis collineation and ceramic panels layer (211), ceramic backsheet layer (213) are less than annular lateral wall (12) inboard diameter, lighting fixture insulating layer (212) outer wall and annular lateral wall (12) inner wall flexonics.
5. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to any one of claims 1 to 4, characterized in that: the heating lamp tubes (23) are of a double-hole tube structure, the whole heating lamp tubes are of an L-shaped structure, the cross sections of the heating lamp tubes are of an infinity-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 at the upper side of the high-temperature resistant fixed disk (21) is provided with a high-infrared short-wave quartz radiator; the part of the heating lamp tube (23) located on the lower side of the high-temperature-resistant fixing disc (21) is connected with a high-temperature wiring (106), and one end, far away from the heating lamp tube (23), of the high-temperature wiring (106) 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) in sequence and is connected with an outer wall power supply device.
6. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to claim 1, characterized in that: the annular side wall (12) is positioned at the lower side of the high-temperature resistant fixed disk (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 all heterotopic; 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 penetrates through the middle heat-insulating layer (102) and the outer heat-insulating layer (103) respectively and is communicated with an external air cooling device.
7. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to claim 1, characterized in that: the transition support rod (31) is fixedly connected with the bottom surface of the high-temperature resistant fixed disk (21) through a connecting support component (210).
8. The flat-wall type internal heat source system for vibration under ultra-high temperature conditions according to claim 1, characterized in that: the water-cooling platform (40) is respectively connected with the lower mounting disc (13) and the vibrating table through arranging a first threaded hole (42) and a second threaded hole (43); 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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| CN202210654980.1A CN114904597B (en) | 2022-06-10 | 2022-06-10 | Flat wall type internal heat source system for vibration under ultra-high temperature condition |
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| CN114904597B (en) | 2024-04-19 |
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