CN117686369A - Spray instantaneous thermal shock loading test system - Google Patents
Spray instantaneous thermal shock loading test system Download PDFInfo
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- CN117686369A CN117686369A CN202311678539.8A CN202311678539A CN117686369A CN 117686369 A CN117686369 A CN 117686369A CN 202311678539 A CN202311678539 A CN 202311678539A CN 117686369 A CN117686369 A CN 117686369A
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- 238000012360 testing method Methods 0.000 title claims abstract description 247
- 239000007921 spray Substances 0.000 title claims abstract description 193
- 230000035939 shock Effects 0.000 title claims abstract description 47
- 238000007599 discharging Methods 0.000 claims abstract description 53
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims description 63
- 238000005507 spraying Methods 0.000 claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000004321 preservation Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011215 ultra-high-temperature ceramic Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
-
- 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
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0694—Temperature
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a spray instantaneous thermal shock loading test system in the field of a material thermal shock resistance test device, which comprises a test oxidation furnace, wherein the test oxidation furnace comprises an upper furnace body and a lower furnace body, and a feeding door and a discharging door which can be opened and closed are arranged on the lower furnace body; the feeding mechanism is used for pushing out the test piece from the discharge door; the impact pushing mechanism is used for pushing the test piece to do reciprocating motion in the upper furnace body and the lower furnace body; the spray test device is used for realizing spray thermal shock on the test piece coming out of the discharge door, and the lifting receiving mechanism is used for conveying the test piece coming out of the discharge door into the spray test device; the beneficial effects of the invention are as follows: through being provided with feeding mechanism, lift receiving mechanism and spray test device, the three mutually supported has realized the automation that sprays thermal shock test, has avoided manual operation to take the test piece, and is experimental more accurate, safer.
Description
Technical Field
The invention relates to the technical field of material thermal shock resistance testing devices, in particular to a spraying instantaneous thermal shock loading test system.
Background
The hypersonic aircraft heat protection system for manned aerospace, deep space exploration aircraft, rocket and the like and the superhigh temperature material of the engine hot end component are often faced with complex and various heat environments in the service process. Taking ultra-high temperature ceramic as a hypersonic aircraft thermal protection material as an example, the air spaces, oxygen atmospheres and speeds at different stages are different in the whole service process, the temperature change range is large, the thermal environment difference at different parts is large, and the ceramic is taken as a part of a structure to be constrained by other parts of the structure, so that the hypersonic aircraft thermal protection material is subjected to various complex thermal impact environments in the service process. Therefore, it is important and necessary to study the thermal shock resistance of the ultra-high temperature ceramic material under multiple continuous thermal shocks.
The existing thermal shock device is mostly used for carrying out thermal shock in an oxidation furnace body, however, thermal shock of gas atmosphere can only be realized in the oxidation furnace body, a heated test piece needs to be taken out of the oxidation furnace body in a thermal shock test of liquid atmosphere to be realized on materials, the existing taking-out mode is mostly used for manually taking out the test piece from the furnace body by using a tool, and the existing taking-out mode has several problems, because the temperature in the furnace body is very high, the precision of manually using the tool is very low, taking-out is time-consuming and labor-consuming, and the heat loss of the test piece is high in the process from taking out the test piece to putting in the liquid atmosphere, so that the result of the thermal shock test is biased.
For this purpose, we propose a spray transient thermal shock loading test system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a spray instantaneous thermal shock loading test system.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the spray instantaneous thermal shock loading test system comprises a test oxidation furnace, wherein the test oxidation furnace comprises an upper furnace body and a lower furnace body, an upper heating module is arranged in the upper furnace body, a lower heating module is arranged in the lower furnace body, and a feeding door and a discharging door which can be opened and closed are arranged on the lower furnace body; the feeding mechanism is arranged on the side wall of the lower furnace body, the feeding mechanism and the discharging door are arranged oppositely, and the feeding mechanism is used for pushing out a test piece from the discharging door; the impact pushing mechanism is used for pushing the test piece to do reciprocating motion in the upper furnace body and the lower furnace body; the spray test device is used for realizing spray thermal shock on a test piece coming out of the discharge door and comprises a temperature control box, a spray tank, a spray pump, a spray pipe and a spray head, wherein the spray tank, the spray pump, the spray pipe and the spray head are arranged at the top of the temperature control box and are communicated with the interior of the temperature control box; the spray pump and the spray pipe are used for spraying the liquid in the temperature control box into the spray tank through the spray head, a spray hopper extending into the spray tank is arranged at the top of the spray tank, and the height of the spray hopper is matched with the height of the spray nozzle; the lifting receiving mechanism is used for conveying a test piece coming out of the discharging door into the spraying test device.
The test piece is heated in the lower furnace body or the upper furnace body, the test piece is placed at the height matched with the feeding mechanism through the impact pushing mechanism after being heated, the feeding mechanism can push the test piece out of the discharging door, the test piece falls off freely from the discharging door and enters the lifting receiving mechanism, the lifting receiving mechanism sends the test piece into the spraying test device for spraying thermal shock test, the lifting receiving mechanism takes the test piece out of the spraying test device after the test is completed, the steps of taking the test piece from the discharging door manually and sending the test piece into the spraying test device by using a tool are avoided, manpower and material resources are saved, the heat loss between the test piece from the discharging door to the spraying test device is greatly avoided, the test accuracy is improved, three temperature cavities are formed through the upper furnace body, the lower furnace body and the spraying test device, the test piece can be used as a thermal shock test after the test piece enters the lower furnace body from the upper furnace body, the test piece can be used as a thermal shock test, the test piece can also be used as a more comprehensive test mode, and the test piece can be used as a thermal shock test.
The lifting receiving mechanism is further limited and comprises a rotating base, a lifting plate vertically arranged on the rotating base, a stabilizing frame arranged on the back surface of the lifting plate, a driving motor vertically arranged on the top of the lifting plate, a lifting screw connected to an output shaft of the driving motor, a hopper mounting plate in threaded sleeve connection with the lifting screw and a feeding hopper connected to the end head of the hopper mounting plate; the hopper mounting plate is L-shaped, the hopper is connected with a hopper rod, the top end of the hopper rod is connected to the hopper mounting plate, and the outer diameter of the hopper is matched with the inner diameter of the spraying hopper; the lifting screw is driven to rotate through the rotation of the driving motor, the hopper mounting plate cannot rotate due to the limit of the lifting plate, lifting is achieved through sliding on the lifting screw, the L-shaped hopper mounting plate can prevent the hopper mounting plate from blocking a test piece falling above, and the structure is more reasonable.
Further defined, the spray pipe comprises a suction section and a spray section, one end of the suction section of the spray pipe is communicated with the interior of the temperature control box, and the other end of the suction section of the spray pipe is communicated with the input end of the spray pump; one end of a spraying section of the spraying pipe is connected to the output end of the spraying pump, and the other end of the spraying section of the spraying pipe is connected to the spray head; the spray heads are uniformly distributed on the side wall of the spray tank, the spray section of the spray pipe is provided with a plurality of spray branch pipes, and the number of the spray branch pipes is matched with that of the spray heads; each spray branch pipe is connected with an opening and closing valve, one end of the opening and closing valve is connected to the spray branch pipe, the other end of the opening and closing valve is connected to the spray head, a spray pipe matched with the spray head is arranged on the spray tank, the spray pipe is communicated with the interior of the spray tank, the outer diameter of the spray head is matched with the inner diameter of the spray pipe, and the spray head and the spray pipe are fixedly connected through a spray flange.
The side wall that sets up a plurality of shower and evenly lay at the spray tank can both be guaranteed that every face of test piece can obtain sufficient spraying, promotes the effect of thermal shock test to also can adjust the switching of every spraying branch pipe through the opening and closing valve, the shower nozzle quantity of control work realizes comparatively special thermal shock test.
Further defined, the bottom of the temperature control box is provided with a heating component; a layer of filter screen is arranged at the communication part of the spray tank and the temperature control box, a tank cover is arranged at the top of the spray tank, an air inlet and an air outlet are formed in the tank cover, a hopper pipe orifice is arranged in the middle of the tank cover, a stepped mounting table is arranged on the inner wall of the hopper pipe orifice in a cutting way, a limiting table is arranged at the top of the spray hopper, the spray hopper and the hopper pipe orifice are fixedly clamped with the limiting table through the mounting table, and the bottom surface height of the spray hopper is matched with the height of the spray nozzle; set up the case lid and can reduce the temperature loss in the spray tank at the top of spray tank, set up the one deck filter screen in the intercommunication department of spray tank and accuse temperature case and separate the piece that can avoid the test piece and fall into the problem emergence that leads to the spray pump damage in the shower suction spray pump by the shower in the accuse temperature case, fixed dismouting that conveniently sprays the hopper more through the fixed spacing platform joint of the orificial mount table of hopper and spray the hopper.
Further limiting, the impact pushing mechanism comprises a first driving device, a pushing rod, a test piece push rod and a test piece fixing table, a test piece frame is fixed on the test piece fixing table, the test piece fixing table is fixedly arranged on the head of the test piece push rod, the bottom of the test piece push rod is connected with the head of the pushing rod, and the first driving device is connected with the tail of the pushing rod so that the pushing rod can slide up and down in the lower furnace body and the upper furnace body.
The feeding mechanism comprises a second driving device, a push rod supporting rod and a push rod sealing shell, wherein the tail part of the push rod supporting rod is connected to the head part of the push rod, the second driving device is connected to the tail part of the push rod so that the push rod can slide horizontally in the lower furnace body, the push rod sealing shell is communicated with the interior of the lower furnace body, the push rod extends into the push rod sealing shell from the end wall of the push rod sealing shell, and the vacuum flange is arranged on the side wall of the push rod sealing shell; push out ejector pin and ejecting branch through second drive arrangement, ejecting branch is with the test piece from the ejection of compact door release more use manpower sparingly, and the test process is simpler, has avoided the manual work to take the test piece in lower furnace body.
The device is characterized by further comprising an isolation mechanism, wherein the isolation mechanism is used for isolating the internal atmosphere of the upper furnace body and the lower furnace body, the isolation mechanism comprises a third driving device, an isolation push rod, an isolation plate and an isolation plate placing bin, the tail part of the isolation plate is connected to the head part of the isolation push rod, the third driving device is connected to the tail part of the isolation push rod so that the isolation push rod can push the isolation plate to slide in the horizontal direction, the isolation plate placing bin is arranged on the side wall of the upper furnace body, and the isolation push rod extends into the isolation plate placing bin from the end wall of the isolation plate placing bin; the isolation push rod is pushed out by the third driving device, the isolation push rod is connected with the isolation plate, the isolation plate is pushed into the upper furnace body to isolate the upper furnace body from the lower furnace body, the isolation plate is also retracted into the isolation plate placing bin when the third driving device retracts to the isolation push rod, and at the moment, the atmosphere inside the upper furnace body is communicated with the atmosphere inside the lower furnace body.
Further limited, a discharging channel is formed in the lower furnace body corresponding to the discharging door, the discharging door is hinged to the outer end of the discharging channel, a discharging track is arranged on the bottom surface of the discharging channel, a convex-shaped test piece frame is respectively provided with a limiting plate at the front side and the rear side of the test piece frame, the test piece frame is screwed into a test piece fixing table through bolts, the limiting plates are fixed on the test piece fixing table through downward pressing of the bolt heads, a test piece accommodating bin is formed in the test piece frame, a test piece outlet penetrating through the left side and the right side of the test piece frame is formed in the bottom of the test piece frame, when a pushing rod is arranged at the lowest position, the test piece outlet is communicated with the discharging track, the height of the test piece outlet is matched with the height of an ejection supporting rod, a notch for the discharging track to penetrate is formed in the test piece fixing table, and a lower heating module is arranged in a lower furnace body below the test piece fixing table; the test piece frame is arranged, the test piece accommodating bin is arranged in the test piece frame, the strip-shaped test piece is horizontally placed in the test piece accommodating bin, the bottommost test piece can be ejected onto the discharging track from the test piece outlet through the ejection supporting rod until the test piece is ejected and retracted from the discharging door, the last test piece falls to the bottom, and all the test pieces can be pushed out one by one through repeated operation.
Further limiting, a middle heat-preserving cylinder is arranged in the lower furnace body, the heights of the middle heat-preserving cylinder are matched with the heights of the test piece push rods, through holes for the ejection supporting rods and the discharging tracks to pass through are formed in the side walls of the middle heat-preserving cylinder, and feeding ports matched with the feeding doors are formed in the side walls of the middle heat-preserving cylinder; in lower furnace body of ejecting branch below is located to lower heating module, carries out induction heating in the below of test piece frame, gives the test piece frame with heat transfer through test piece push rod and test piece fixed station, sets up and ejection branch high assorted heat preservation section of thick bamboo in can guaranteeing the heating efficiency of test piece in the middle heat preservation section of thick bamboo.
Further limiting, a lower temperature zone temperature measuring flange is arranged on the lower furnace body, an upper temperature zone temperature measuring flange is arranged on the upper furnace body, and the lower temperature zone temperature measuring flange and the upper temperature zone temperature measuring flange are both used for being connected with a temperature measuring device; the temperature measuring flange of the lower temperature zone and the temperature measuring flange of the upper temperature zone are arranged, so that the temperature in the lower furnace body and the temperature in the upper furnace body can be monitored.
The beneficial effects of the invention are as follows: through being provided with feeding mechanism, lift receiving mechanism and spray test device, the three mutually supported has realized the automation that sprays thermal shock test, has avoided manual operation to take the test piece, and is experimental more accurate, safer.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic perspective view of a spray test apparatus;
FIG. 3 is a schematic view of the internal structure of the spray test device;
FIG. 4 is a schematic perspective view of a lifting receiving device;
FIG. 5 is a rear view of the trial oxidation oven;
FIG. 6 is a schematic perspective view of a test oxidizing furnace;
FIG. 7 is a left side view of a test oxidizing furnace;
FIG. 8 is a cross-sectional view taken along the direction A-A in FIG. 7;
FIG. 9 is a schematic diagram of the impact pushing mechanism and the feeding mechanism;
FIG. 10 is an enlarged schematic view of portion A of FIG. 9;
FIG. 11 is a schematic view of the isolation mechanism and upper thermal insulation barrel.
Wherein the symbols of the components are as follows:
the upper furnace body 1, the lower furnace body 2, the furnace cover 3, the telescopic rod 4, the feeding door 5, the discharging door 6, the lower temperature zone temperature measuring flange 7, the upper temperature zone temperature measuring flange 8, the vacuum flange 9, the air inlet flange 10, the air outlet flange 11, the second driving device 12, the ejector rod 13, the ejector rod 14, the ejector rod sealing shell 15, the third driving device 16, the isolation push rod 17, the isolation plate 18, the isolation plate placing bin 19, the upper heat preservation cylinder 20, the first driving device 21, the push rod 22, the test piece push rod 23, the test piece fixing table 24, the test piece frame 25, the limit plate 251, the test piece outlet 252, the lower heat preservation cylinder 26, the supporting frame 27, the discharging channel 28, the discharging track 29, the middle heat preservation cylinder 30, the lower heating module 31, the upper heating module 32, the temperature control box 33, the spray tank 34, the spray pump 35, the spray pipe 36, the suction section 361, the spray section 362, the spray branch 363, the spray nozzle 37, the spray hopper 38, the limit table 381, the opening and closing valve 39, the spray pipe 40, the spray flange 41, the 42, the heating assembly 43, the filter screen 44, the box cover 45, the air inlet 46, the air outlet 47, the hopper 48, the mounting table 48, the rotary mount plate 50, the lifting motor, the lifting plate 50, the lifting frame 52, the lifting and the mounting plate 52.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
Examples:
1-11, a spray instantaneous thermal shock loading test system comprises a test oxidation furnace, a feeding mechanism, an isolation mechanism, an atmosphere mechanism, an impact pushing mechanism, a spray test device and a lifting receiving mechanism; the experimental oxidation furnace comprises an upper furnace body 1 and a lower furnace body 2, wherein an upper heating module 32 is arranged in the upper furnace body 1, the upper heating module 32 is a resistance heating module, the top of the upper furnace body 1 is provided with an openable furnace cover 3, and the furnace cover 3 is opened and closed through a telescopic rod 4; a lower heating module 31 is arranged in the lower furnace body 2, the lower heating module 31 is an induction heating module, and the lower furnace body 2 is provided with a feeding door 5 and a discharging door 6 which can be opened and closed; the heating bodies of the upper heating module 32 and the lower heating module 31 are all made of ceramic materials; the lower furnace body 2 is provided with a lower temperature zone temperature measuring flange 7, the upper furnace body 1 is provided with an upper temperature zone temperature measuring flange 8, and the lower temperature zone temperature measuring flange 7 and the upper temperature zone temperature measuring flange 8 are both used for connecting a temperature measuring device; the atmosphere mechanism comprises a vacuum flange 9, an air inlet flange 10 and an air outlet flange 11, wherein the air inlet flange 10 is arranged on the upper furnace body 1, and the air outlet flange 11 is arranged on the upper furnace body 1;
the spray test device is used for realizing spray thermal shock on a test piece from the discharge door 6 and comprises a temperature control box 33, a spray tank 34, a spray pump 35, a spray pipe 36 and a spray head 37, wherein the spray tank 34 is arranged at the top of the temperature control box 33 and is communicated with the interior of the temperature control box 33; the spray pump 35 and the spray pipe 36 are used for spraying the liquid in the temperature control box 33 into the spray tank 34 through the spray nozzle 37, and a spray hopper 38 extending into the spray tank 34 is arranged at the top of the spray tank 34; the spray pipe 36 comprises a suction section 361 and a spray section 362, wherein one end of the suction section 361 of the spray pipe 36 is communicated with the interior of the temperature control box 33, and the other end of the suction section is communicated with the input end of the spray pump 35; one end of a spraying section 362 of the spraying pipe 36 is connected to the output end of the spraying pump 35, and the other end is connected to the spray head 37; the number of the spray heads 37 is four, the four spray heads 37 are uniformly distributed on the four directions of the side wall of the spray tank 34, and the spray section 362 of the spray pipe 36 is provided with four spray branch pipes 363; each spray branch pipe 363 is connected with an opening and closing valve 39, one end of the opening and closing valve 39 is connected to the spray branch pipe 363, the other end of the opening and closing valve 39 is connected to the spray head 37, the spray tank 34 is provided with a spray pipe 40 matched with the spray head 37, the spray pipe 40 is communicated with the interior of the spray tank 34, the outer diameter of the spray head 37 is matched with the inner diameter of the spray pipe 40, the spray head 37 and the spray pipe 40 are fixedly connected through a spray flange 41, and a thermocouple 42 is further arranged at each spray head 37 and the temperature control box 33 to detect the temperature of liquid in the interior; the bottom of the temperature control box 33 is provided with a heating component 43, the heating component 43 is a heating resistance wire, a layer of filter screen 44 is arranged at the communication part of the spray tank 34 and the temperature control box 33, the top of the spray tank 34 is provided with a tank cover 45, the tank cover 45 is provided with an air inlet 46 and an air outlet 47, the middle part of the tank cover 45 is provided with a hopper pipe orifice 48, the inner wall of the hopper pipe orifice 48 is provided with a stepped mounting platform 481 in a cutting way, the top of the spray hopper 38 is provided with a limiting platform 381, the spray hopper 38 and the hopper pipe orifice 48 are fixedly clamped with the limiting platform 381 through the mounting platform 481, and the height of the spray nozzle 37 is matched with the bottom surface height of the spray hopper 38;
the lifting receiving mechanism is used for conveying the test piece coming out of the discharging door 6 into the spraying test device; the lifting receiving mechanism comprises a rotating base 49, a lifting plate 50 vertically arranged on the rotating base 49, a stabilizing frame 51 arranged on the back surface of the lifting plate 50, a driving motor 52 vertically arranged on the top of the lifting plate 50, a lifting screw 53 connected to an output shaft of the driving motor 52, a hopper mounting plate 54 sleeved on the lifting screw 53 in a threaded manner and a hopper 56 connected to the end head of the hopper mounting plate 54; the hopper mounting plate 54 is L-shaped, the hopper 56 is connected with a hopper rod 55, the top end of the hopper rod 55 is connected to the hopper mounting plate 54, and the outer diameter of the hopper 56 is matched with the inner diameter of the spray hopper 38;
the lifting receiving mechanism and the spraying test device can be arranged on a supporting table or a supporting frame to shorten the distance between the lifting receiving mechanism and the discharging door 6, so that the lifting receiving mechanism can conveniently receive a test piece and spray a thermal shock test;
the feeding mechanism is arranged on the side wall of the lower furnace body 2, the feeding mechanism and the discharging door 6 are oppositely arranged, and the feeding mechanism is used for pushing out a test piece from the discharging door 6; the feeding mechanism comprises a second driving device 12, a push rod 13, a push rod 14 and a push rod closed shell 15, wherein the tail part of the push rod 14 is connected to the head part of the push rod 13, the second driving device 12 is connected to the tail part of the push rod 13 so that the push rod 13 can slide horizontally in the lower furnace body 2, the push rod closed shell 15 is communicated with the interior of the lower furnace body 2, the push rod 13 extends into the push rod closed shell 15 from the end wall of the push rod closed shell 15, and the vacuum flange 9 is arranged on the side wall of the push rod closed shell 15;
the isolation mechanism can be opened and closed on the side wall of the upper furnace body 1 and is used for isolating the atmosphere inside the upper furnace body 1 and the lower furnace body 2; the isolation mechanism comprises a third driving device 16, an isolation push rod 17, an isolation plate 18 and an isolation plate placing bin 19, wherein the tail part of the isolation plate 18 is connected to the head part of the isolation push rod 17, the third driving device 16 is connected to the tail part of the isolation push rod 17, so that the isolation push rod 17 can push the isolation plate 18 to slide in the horizontal direction, the isolation plate placing bin 19 is arranged on the side wall of the upper furnace body 1, and the isolation push rod 17 extends into the isolation plate placing bin 19 from the end wall of the isolation plate placing bin 19; an upper heat preservation cylinder 20 is arranged in the upper furnace body 1, an upper heating module 32 is arranged in the upper heat preservation cylinder 20, and a through hole for the partition plate 18 to pass through is formed in the side wall of the upper heat preservation cylinder 20;
the impact pushing mechanism comprises a first driving device 21, a pushing rod 22, a test piece push rod 23 and a test piece fixing table 24, wherein a test piece frame 25 is fixed on the test piece fixing table 24, the test piece fixing table 24 is fixedly arranged at the head part of the test piece push rod 23, the bottom part of the test piece push rod 23 is connected with the head part of the pushing rod 22, and the first driving device 21 is connected with the tail part of the pushing rod 22 so that the pushing rod 22 can slide up and down in the lower furnace body 2 and the upper furnace body 1; the bottom of the lower furnace body 2 is vertically provided with a lower heat preservation cylinder 26, the bottom of the lower heat preservation cylinder 26 is fixedly connected with a support frame 27, and the first driving device 21 is fixedly arranged in the support frame 27;
a discharging channel 28 is formed in the lower furnace body 2 corresponding to the discharging door 6, the discharging door 6 is hinged to the outer end of the discharging channel 28, a discharging track 29 is arranged on the bottom surface of the discharging channel 28, a test piece frame 25 is in a convex shape, a limiting plate 251 is arranged on the front side and the rear side of the test piece frame 25, the test piece frame 25 is screwed into a test piece fixing table 24 through bolts, the bolt head downward pressing limiting plate 251 is fixed on the test piece fixing table 24, a test piece accommodating bin is formed in the test piece frame 25, a test piece outlet 252 penetrating through the left side and the right side of the test piece frame 25 is formed in the bottom of the test piece frame 25, when a pushing rod 22 is placed at the lowest position, the test piece outlet 252 is communicated with the discharging track 29, the height of the test piece outlet 252 is matched with the height of an ejection supporting rod 14, a notch for the discharge track 29 to penetrate is formed in the test piece fixing table 24, and a lower heating module 31 is arranged in the lower furnace body 2 below the test piece fixing table 24; a middle heat preservation cylinder 30 is arranged in the lower furnace body 2, the height of the middle heat preservation cylinder 30 is matched with the height of the test piece push rod 23, through holes for the ejection supporting rods 14 and the discharge tracks 29 to pass through are formed in the side wall of the middle heat preservation cylinder 30, and a feeding port matched with the feeding door 5 is formed in the side wall of the middle heat preservation cylinder 30;
the first driving device 21, the second driving device 12 and the third driving device 16 are all conventional motor screw elevating devices, so that no excessive description will be made.
The test piece is heated in the lower furnace body 2 or the upper furnace body 1 during test, and then is placed at the height matched with the feeding mechanism through the impact pushing mechanism, so that the feeding mechanism can push the test piece out of the discharging door 6, the test piece falls off freely from the discharging door 6 and enters the lifting receiving mechanism, the lifting receiving mechanism sends the test piece into the spraying test device for spraying thermal shock test, the lifting receiving mechanism takes the test piece out of the spraying test device after the test is finished, the steps of manually taking the test piece out of the discharging door 6 by a tool and sending the test piece into the spraying test device are avoided, the manpower and material resources are saved, the heat loss between the test piece coming out of the discharging door 6 and entering the spraying test device is greatly avoided, the test accuracy is improved, three temperature cavities are formed through the upper furnace body 1, the lower furnace body 2 and the spraying test device, the test piece enters the lower furnace body 2 from the upper furnace body 1 as a thermal shock test, the test piece enters the spraying test device from the lower furnace body 1 and can be used as a thermal shock test, and the test piece enters the spraying test device from the lower furnace body 1 as a more comprehensive thermal shock test, and the test device can also be used as a thermal shock test; the lifting screw 53 is driven to rotate through the rotation of the driving motor 52, and the hopper mounting plate 54 cannot rotate due to the limit of the lifting plate 50, so that the hopper mounting plate 54 slides on the lifting screw 53 to lift, the hopper mounting plate 54 in an L shape can not block a test piece falling above, and the structure is more reasonable; the plurality of spray pipes 36 are uniformly distributed on the side wall of the spray tank 34, so that each surface of a test piece can be guaranteed to obtain enough spraying, the effect of a thermal shock test is improved, the opening and closing of each spray branch pipe 363 can be regulated through the opening and closing valve 39, the number of the working spray heads 37 is controlled, and a special thermal shock test is realized; the top of the spray tank 34 is provided with the tank cover 45, so that the temperature loss in the spray tank 34 can be reduced, a layer of filter screen 44 is arranged at the communication part of the spray tank 34 and the temperature control box 33 to separate, the problem that the spray pump 35 is damaged due to the fact that scraps of a test piece fall into the temperature control box 33 and are sucked into the spray pump 35 by the spray pipe 36 can be avoided, and the spray hopper 38 is more convenient to assemble and disassemble by clamping and fixing the mounting platform 481 of the hopper pipe orifice 48 and the limiting platform 381 of the spray hopper 38; the ejector rod 13 and the ejection supporting rod 14 are pushed out by the second driving device 12, the ejection supporting rod 14 pushes the test piece out of the discharge door 6, so that more labor is saved, the test process is simpler, and the test piece is prevented from being manually taken in the lower furnace body 2; the isolation push rod 17 is pushed out by the third driving device 16, the isolation push rod 17 is connected with the isolation plate 18, so that the isolation plate 18 is pushed into the upper furnace body 1 to isolate the upper furnace body 1 from the lower furnace body 2, when the third driving device 16 retracts the isolation push rod 17, the isolation plate 18 also retracts into the isolation plate placing bin 19, and at the moment, the atmosphere inside the upper furnace body 1 and the lower furnace body 2 is communicated; the bottom of the lower furnace body 2 is provided with the heat preservation cylinder, so that the test piece push rod 23 is prevented from being exposed in the air after being retracted and separated from the lower furnace body 2, the temperature of a test piece in the test piece frame 25 is reduced due to rapid cooling, and the temperature of the external environment is increased due to heat exchange with the external environment, the safety is improved, and the accuracy of a test result can be ensured; the test piece frame 25 is arranged, a test piece accommodating bin is arranged in the test piece frame 25, a strip-shaped test piece is horizontally placed in the test piece accommodating bin, the test piece at the bottommost part can be ejected onto the discharging track 29 from the test piece outlet 252 through the ejection supporting rod 14 until the test piece is ejected and retracted from the discharging door 6, the last test piece falls to the bottom, and all the test pieces can be pushed out one by repeating the operation; the lower heating module 31 is arranged in the lower furnace body 2 below the ejection supporting rod 14, induction heating is carried out below the test piece frame 25, heat is transferred to the test piece frame 25 through the test piece push rod 23 and the test piece fixing table 24, and the heat preservation cylinder 30 matched with the ejection supporting rod 14 in height is arranged, so that the heating efficiency of a test piece in the heat preservation cylinder 30 can be ensured; the upper heat preservation cylinder 20 is arranged in the upper furnace body 1, so that the heating efficiency in the upper furnace body 1 can be further improved; the temperature in the lower furnace body 2 and the upper furnace body 1 can be monitored by arranging the lower temperature zone temperature measuring flange 7 and the upper temperature zone temperature measuring flange 8.
Claims (10)
1. A spray transient thermal shock loading test system, comprising:
the test oxidation furnace comprises an upper furnace body (1) and a lower furnace body (2), wherein an upper heating module (32) is arranged in the upper furnace body (1), a lower heating module (31) is arranged in the lower furnace body (2), and a feeding door (5) and a discharging door (6) which can be opened and closed are arranged on the lower furnace body (2);
the feeding mechanism is arranged on the side wall of the lower furnace body (2), the feeding mechanism and the discharging door (6) are arranged oppositely, and the feeding mechanism is used for pushing out a test piece from the discharging door (6);
the impact pushing mechanism is used for pushing the test piece to reciprocate in the upper furnace body (1) and the lower furnace body (2);
the spray test device is used for realizing spray thermal shock on a test piece coming out of the discharging door (6), and comprises a temperature control box (33), a spray tank (34), a spray pump (35), a spray pipe (36) and a spray head (37), wherein the spray tank (34), the spray pump (35), the spray pipe (36) and the spray head (37) are arranged at the top of the temperature control box (33) and are communicated with the interior of the temperature control box (33); the spray pump (35) and the spray pipe (36) are used for spraying the liquid in the temperature control box (33) into the spray tank (34) through the spray head (37), a spray hopper (38) extending into the spray tank (34) is arranged at the top of the spray tank (34), and the height of the spray hopper (38) is matched with the height of the spray nozzle;
the lifting receiving mechanism is used for conveying a test piece coming out of the discharging door (6) into the spraying test device.
2. The spray instantaneous thermal shock loading test system according to claim 1, wherein the lifting receiving mechanism comprises a rotating base (49), a lifting plate (50) vertically arranged on the rotating base (49), a stabilizing frame (51) arranged on the back of the lifting plate (50), a driving motor (52) vertically arranged on the top of the lifting plate (50), a lifting screw (53) connected to an output shaft of the driving motor (52), a hopper mounting plate (54) in threaded sleeve connection with the lifting screw (53) and a hopper (56) connected to the end head of the hopper mounting plate (54);
the hopper mounting plate (54) is L-shaped, the hopper (56) is connected with a hopper rod (55), the top end of the hopper rod (55) is connected to the hopper mounting plate (54), and the outer diameter of the hopper (56) is matched with the inner diameter of the spraying hopper (38).
3. The spray transient thermal shock loading test system according to claim 1, wherein the spray pipe (36) comprises a suction section (361) and a spray section (362), one end of the suction section (361) of the spray pipe (36) is communicated with the interior of the temperature control box (33), and the other end is communicated with the input end of the spray pump (35); one end of a spraying section (362) of the spraying pipe (36) is connected to the output end of the spraying pump (35), and the other end is connected to the spray head (37);
the spray heads (37) are arranged in a plurality, the spray heads (37) are uniformly distributed on the side wall of the spray tank (34), the spray section (362) of the spray pipe (36) is provided with a plurality of spray branch pipes (363), and the number of the spray branch pipes (363) is matched with the number of the spray heads (37);
each spraying branch pipe (363) is connected with an opening and closing valve (39), one end of the opening and closing valve (39) is connected to the spraying branch pipe (363), the other end of the opening and closing valve is connected to a spray head (37), a spray pipe (40) matched with the spray head (37) is arranged on a spraying tank (34), the spray pipe (40) is communicated with the inside of the spraying tank (34), the outer diameter of the spray head (37) is matched with the inner diameter of the spray pipe (40), and the spray head (37) is fixedly connected with the spray pipe (40) through a spraying flange (41).
4. A spray transient thermal shock loading test system according to claim 3, characterized in that the bottom of the temperature control box (33) is provided with a heating assembly (43);
the utility model discloses a shower, including shower tank (34) and control temperature case (33), the intercommunication department of control temperature case (33) is equipped with one deck filter screen (44), the top of shower tank (34) is equipped with case lid (45), air inlet (46) and gas outlet (47) have been seted up on case lid (45), the middle part of case lid (45) is equipped with hopper mouth of pipe (48), the inner wall of hopper mouth of pipe (48) cuts open and is equipped with echelonment mount table (481), the top of shower hopper (38) is equipped with spacing platform (381), shower hopper (38) with hopper mouth of pipe (48) pass through mount table (481) with spacing platform (381) joint is fixed, the bottom surface height of shower hopper (38) with the height phase-match of shower nozzle (37).
5. The spray instantaneous thermal shock loading test system according to claim 1, wherein the impact pushing mechanism comprises a first driving device (21), a pushing rod (22), a test piece push rod (23) and a test piece fixing table (24), a test piece frame (25) is fixed on the test piece fixing table (24), the test piece fixing table (24) is fixedly arranged at the head of the test piece push rod (23), the bottom of the test piece push rod (23) is connected with the head of the pushing rod (22), and the first driving device (21) is connected with the tail of the pushing rod (22) so that the pushing rod (22) can slide up and down in the lower furnace body (2) and the upper furnace body (1).
6. The spray instantaneous thermal shock loading test system according to claim 1, wherein the feeding mechanism comprises a second driving device (12), a push rod (13), a push rod (14) and a push rod closed shell (15), the tail of the push rod (14) is connected with the head of the push rod (13), the second driving device (12) is connected with the tail of the push rod (13) so that the push rod (13) can slide in the horizontal direction in the lower furnace body (2), the push rod closed shell (15) is communicated with the interior of the lower furnace body (2), the push rod (13) extends into the push rod closed shell (15) from the end wall of the push rod closed shell (15), and the vacuum flange (9) is arranged on the side wall of the push rod closed shell (15).
7. The spray instantaneous thermal shock loading test system according to claim 1, further comprising an isolation mechanism, wherein the isolation mechanism is used for isolating the internal atmosphere of the upper furnace body (1) and the lower furnace body (2), the isolation mechanism comprises a third driving device (16), an isolation push rod (17), an isolation plate (18) and an isolation plate placing bin (19), the tail of the isolation plate (18) is connected with the head of the isolation push rod (17), the third driving device (16) is connected with the tail of the isolation push rod (17) so that the isolation push rod (17) can push the isolation plate (18) to slide horizontally, the isolation plate placing bin (19) is arranged on the side wall of the upper furnace body (1), and the isolation push rod (17) extends into the isolation plate placing bin (19) from the end wall of the isolation plate placing bin (19).
8. The instantaneous thermal shock loading test system for spraying according to claim 6, wherein a discharging channel (28) is formed in the lower furnace body (2) corresponding to the discharging door (6), the discharging door (6) is hinged to the outer end head of the discharging channel (28), a discharging track (29) is formed in the bottom surface of the discharging channel (28), the test piece frame (25) is in a convex shape, a limiting plate (251) is respectively arranged on the front side and the rear side of the test piece frame (25), the test piece frame (25) is screwed into the test piece fixing table (24) through bolts, the limiting plate (251) is pressed down by the bolts to be fixed on the test piece fixing table (24), a test piece accommodating bin is formed in the test piece frame (25), a test piece outlet (252) penetrating through the left side and the right side of the test piece frame (25) is formed in the bottom of the test piece frame (25), when the pushing rod (22) is placed at the lowest position, the test piece outlet (252) is communicated with the discharging track (29), the test piece outlet (252) is communicated with the test piece outlet (29) and the test piece outlet (252) is communicated with the test piece outlet (29) through a gap, the height matched with the test piece (14) is formed, the test piece outlet (29) is communicated with the test piece outlet (29), the lower heating module (31) is arranged in the lower furnace body (2) below the test piece fixing table (24).
9. The spray instantaneous thermal shock loading test system according to claim 8, wherein a middle heat preservation cylinder (30) is arranged in the lower furnace body (2), the heights of the middle heat preservation cylinder (30) are matched with the heights of the test piece push rods (23) at the lowest position, through holes for the ejection supporting rods (14) and the discharge tracks (29) to pass through are formed in the side walls of the middle heat preservation cylinder (30), and feeding ports matched with the feeding doors (5) are formed in the side walls of the middle heat preservation cylinder (30).
10. The spray instantaneous thermal shock loading test system according to claim 1, wherein a lower temperature zone temperature measuring flange (7) is arranged on the lower furnace body (2), an upper temperature zone temperature measuring flange (8) is arranged on the upper furnace body (1), and the lower temperature zone temperature measuring flange (7) and the upper temperature zone temperature measuring flange (8) are both used for being connected with a temperature measuring device.
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