CN208125527U - A kind of autoclave for axial compression test under high temperature and pressure - Google Patents
A kind of autoclave for axial compression test under high temperature and pressure Download PDFInfo
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- CN208125527U CN208125527U CN201820591289.2U CN201820591289U CN208125527U CN 208125527 U CN208125527 U CN 208125527U CN 201820591289 U CN201820591289 U CN 201820591289U CN 208125527 U CN208125527 U CN 208125527U
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- autoclave body
- pressure
- autoclave
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Abstract
The utility model discloses a kind of autoclaves for axial compression test under high temperature and pressure, it includes autoclave body and heating furnace, the autoclave body is cylindrical, hollow shape tube structure, bringing-up section bulge loop is equipped on the outside of the middle part of autoclave body, heating furnace is socketed on the outside of the bringing-up section bulge loop, it is equipped with pressurizing device in the upper end of autoclave body, support device is equipped in the lower end of autoclave body, the filler port being connected with autoclave body inner cavity is equipped on the side wall of the top autoclave body of bringing-up section bulge loop.It is that one kind can adapt to a variety of media and sample, the autoclave that can be tested under high temperature, high pressure, meets measurement accuracy requirement, easy to use and reliable, maintenance cost is low, achieves good using effect.
Description
Technical field
The utility model relates to a kind of autoclave more particularly to a kind of pressurizations for axial compression test under high temperature and pressure
Kettle belongs to testing of materials machinery technical field.
Background technique
The mechanics parameters such as elasticity modulus, yield strength, creep rupture strength, breaking strength, the most basic object as material
Constant is managed, is the basic data of many application studies, is widely used in all trades and professions, as human development explores space to depth
It is empty, extend deeply, if deep-sea resources exploitation, Earth look for mine, engineer application is to higher temperature Pressure Development, such as ultra supercritical
Unit, nuclear reactor pressure container etc., the environmental condition faced is harsher, and high temperature and pressure is exactly one of them, answers as research
With material mechanical parameters are indispensability data early period under high temperature and pressure, and data acquisition mainly passes through the power under high temperature and pressure
Learn test.In terms of the data grasped at present, most of experimental studies are only limited to normal temperature and pressure or under high-temperature pressures, even if portion
Point high temperature and pressure test, temperature, pressure is all relatively low, and the research under real high temperature and pressure extremely lacks, among these the main reason for
It is that relevant test apparatus lacks and test method limits.Reality in terms of data, for the mechanical property under high-temperature and high-pressure conditions
Testing platform includes common triaxiality stressh machine and homemade special pressure testing machine, these testing equipments are answered due to what is be directed to
It is different with environmental condition and requirement, it is specific as follows in place of coming with some shortcomings for high temperature and pressure test：
（1）Conventional general triaxiality stressh machine, heat medium is silicone oil, since burning point limits, heating temperature≤
400 DEG C, therefore equipment is lower using temperature；
（2）General triaxiality stressh machine deformation measurement, which mainly has, fills deformeter and patch two kinds of sides of foil gauge on sample
Formula, both mode advantages directly measure, and measurement data is relatively accurate, but there are sensor installation requirement height, lead troubles etc.
Problem, link is cumbersome slightly to be will fail without paying attention to test, while for sensor protection, also being had to heating pressure medium higher
It is required that because many liquid mediums have oxidation corrosion, under supercriticality to avoid sensor degradation and short circuit, device
It cannot be used for the weak corrosive medium such as water, and water, low concentration salt solution, acid-base solution are the media that we frequently encounter, this is just
Greatly limit the purposes of equipment；
（3）Special pressure testing machine, its measurement method of several devices are substantially all common measurements indirectly, pass through calculating
Sample deformations are converted into, guarantee that the key of detection accuracy is to exclude the error of measurement links, although several devices are assembled with position
Displacement sensor tries hard to exclude the error of measurement links, but since sensor is all loaded on outside pressing mechanism, far from sample end, rises
Less than that should have effect, piston rod, mounting seat are deformed in pressure process, polishing head and the pressurize indirect thixotroping shape of rod end surface and displacement
It can not detect, therefore it directly passes through calculating measuring result error and can only be corrected by specific process, although piston rod very greatly
Pedestal deformation can by correction, but correlated parts be coupled generate juxtaposition metamorphose and displacement it is related with installation, with centainly with
Machine cannot be excluded accurately, and it is not continuous in addition correcting, and be carried out only for some characteristic points, and testing experiment is according to reality
Border needs, and has differences between the two；
（4）Without adjustment link between special pressure testing machine sample and pressing mechanism, the depth of parallelism leans on sample and pressurization completely
Mechanism guarantees, is actually difficult to accomplish, because processing and assembling link can all have error, cumulative errors are quite big, and this
Error has certain randomness, and the depth of parallelism cannot such as compensate in pressure process, will cause sample local deformation, the deflection measured
Inaccuracy.
Due to apparatus above insufficient and real scientific research there is an urgent need to utility model one kind can overcome above ask
Topic, reliable, simple and practical autoclave be very it is necessary to.
Summary of the invention
The technical problems to be solved in the utility model is：A kind of pressurization for axial compression test under high temperature and pressure is provided
Kettle, it is that one kind can adapt to a variety of media and sample, can be tested under high temperature, high pressure, meets measurement accuracy requirement,
The autoclave of axial compression test easy to use and reliable, maintenance cost is low solves the deficiency of prior art.
The technical solution of the utility model is：A kind of autoclave for axial compression test under high temperature and pressure, it includes
Autoclave body and heating furnace, the autoclave body are cylindrical, hollow shape tube structure, and bringing-up section bulge loop is equipped on the outside of the middle part of autoclave body, described
It is socketed with heating furnace on the outside of bringing-up section bulge loop, is equipped with pressurizing device in the upper end of autoclave body, is equipped with support dress in the lower end of autoclave body
It sets, the filler port being connected with autoclave body inner cavity is equipped on the side wall of the top autoclave body of bringing-up section bulge loop.
The pressurizing device includes nut and pressurizing piston bar, and the nut is connected by the top of screw thread and autoclave body,
It is equipped with hard straight hole in the centre of nut, is equipped with pressurizing piston bar in hole, the lateral wall of the pressurizing piston bar is equipped with and spiral shell
The boss of parent phase cooperation is equipped with the pressure ring of pivot bush unit, the lower section autoclave body and pressurizing piston bar of the pressure ring in the lower section of boss
Between be equipped with upper seal assembly.
The support device includes that ring flange, lower kettle plug and pedestal, the ring flange are threadedly attached in autoclave body
Bottom end, pedestal are connect by bolt with ring flange, and the lower kettle plug for protruding into autoclave body inner cavity, the lower kettle plug are equipped in the top of pedestal
It is equipped with lower seal assembly between autoclave body, is equipped with pressure sensor in the centre of lower kettle plug, lower kettle is equipped with and autoclave body inside beyond the Great Wall
The boss structure matched.
The upper outside movable sleeve of the autoclave body is connected to coolant jacket, is connected to lower cooling in the lower outside movable sleeve of autoclave body
Set, the upper coolant jacket is between nut and filler port, and the lower coolant jacket is between ring flange and heating furnace.
A kind of application method for the autoclave of axial compression test under high temperature and pressure, the method step are：One, it tries
Experiment device assembling：First autoclave body is placed vertically downward with nut connecting pin, is then successively put into lower seal assembly, lower kettle plug
Autoclave body it is interior intracavitary, then pressure sensor is attached to the centre of lower kettle plug, loads coolant jacket, ring flange after the completion, next will
In pedestal back-off to the end face of lower kettle plug, finally ring flange and base combination are linked together with bolt, finishing device lower part
Assembling；After lower part is installed, reverse autoclave is placed vertically downward with pedestal, then above the inner hole of autoclave body, is successively put
Enter upper seal assembly, pressure ring, pressurizing piston bar, after inside is installed, next loads onto coolant jacket and nut, experimental rig group
It installs into；Two, experimental rig is integrally put into pressure testing machine：Experimental rig is integrally put into in pressure testing machine rear dress in place
Heating furnace, connection control pressurer system and corresponding pressure sensor, test preparation stage complete；Three, experimental stage：It is logical first
Over-voltage Force control system protects sample to the inner cavity of autoclave injection 0.5MPa test(ing) medium, prevents from aoxidizing in heating process, so
Starting heating furnace heats autoclave afterwards, and heating process is by process control；After heating temperature arrives, temperature keeps a timing
Between, control pressurer system is after injection to axial compression test device injection testing medium under high temperature and pressure to setting value
It can start to carry out the clearing work of compression test initial pressure, resetting purpose is to deduct pressure medium and piston rod friction in cavity
The influence of power obtains being pressurized to the true pressure on sample, and clearing starts, manually control pressure testing machine pressurizing piston it is slow under
Drop, after contacting pressurizing piston bar, pressure testing machine plus-pressure is gradually increased, due to filling between pressurizing piston bar lower end surface and sample
There are the gaps 3 ~ 4mm or so when sample, and pressurizing piston bar has one section of idle stroke when pushing, when pressure testing machine plus-pressure reaches one
When determining degree, piston rod is begun to decline, and pressure sensor numerical value starts to become larger at this time, and since idle stroke exists, press pressure is slow
Slow to increase, power is the sum of active force and the piston rod frictional force that medium generates at this time, when pressurizing piston bar is in pressure testing machine
Continue to push under control, pressurizing piston bar touches sample, and press pressure increases sharply, and when increasing by 500 ~ 1000N, pressurization is lived
Stopper rod is completely attached to and is preloaded with sample, is reset at this time to pressure testing machine, sensing data, can basis after clearing
The control program that test requirements document is previously set carries out applied voltage test by pressure testing machine, and sensor data transmission is to pressure in test
Sample deformations amount is obtained by calculation, after obtaining sample forces and deformation relationship, so that it may judge in testing machine or collecting computer
Calculate the mechanics parameters such as yield strength, creep rupture strength, breaking strength, elasticity modulus.
The utility model has the beneficial effects that：Compared with prior art, the beneficial effects of the utility model are as follows：
1, the device can cooperate, structure extends to existing as a whole parts with different pressures testing machine
Triaxial compression test machine has bigger practical value.
2, the present apparatus can testing inspection sample it is more various, sample can be metal or nonmetallic.
3, compared with common triaxial compression test machine, the range for testing adaptation is wider, and the temperature being adapted to is higher, highest
Can reach 600 DEG C, pressure medium is more various, and medium is adapted to the weak erosives liquid such as the indifferent gas such as test(ing) medium and water,
Due to being not required to fill dedicated deformeter or foil gauge, use is easier to be reliable.
4, axial compression test device is used through actual test under high temperature and pressure, and measurement accuracy error reaches test requirements document,
Resolution ratio reaches 0.2 μm, and 2 μm of accuracy, easy to use, reliable performance provides a kind of new test for high temperature and pressure test
Means.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below with reference to this specification attached drawing pair
The utility model is described in further detail.
Embodiment 1：As shown in Fig. 1, a kind of autoclave for axial compression test under high temperature and pressure, it includes autoclave body
5 and heating furnace 15, the autoclave body 5 is cylindrical, hollow shape tube structure, is equipped with bringing-up section bulge loop 6, institute on the outside of the middle part of autoclave body 5
The outside for stating bringing-up section bulge loop 6 is socketed with heating furnace 15, is equipped with pressurizing device in the upper end of autoclave body 5, is equipped in the lower end of autoclave body 5
Support device is equipped with the filler port 7 being connected with 5 inner cavity of autoclave body on the side wall of the top autoclave body 5 of bringing-up section bulge loop 6.This dress
Setting can integrally be placed on pressure testing machine worktable after being completed, and it is equal to sample to pass through pressurizing piston bar 12 by pressure testing machine
Product apply pressure, and by pressure testing machine process control as needed, compressive deformation data can be by pressing for applied voltage test mode and process
Force tester or individual computer acquisition processing, test temperature are controlled by heating furnace 15, and pressure medium and pressure are pressed by outside
Force control system is injected and is controlled from 7 interface of filler port above 5 side wall of autoclave body.
Further, pressurizing device includes nut 13 and pressurizing piston bar 12, and the nut 13 passes through screw thread and autoclave body 5
Top connection, be equipped with hard straight hole in the centre of nut 13, equipped with pressurizing piston bar 12 in hole, the pressurizing piston bar 12
Lateral wall is equipped with the boss 11 matched with nut 13, is equipped with the pressure ring 10 of pivot bush unit, the pressure in the lower section of boss 11
Upper seal assembly 8 is equipped between the lower section autoclave body 5 and pressurizing piston bar 12 of ring 10.
Further, support device includes ring flange 17, lower kettle plug 2 and pedestal 1, and the ring flange 17 is connected by screw thread
It connects in the bottom end of autoclave body 5, pedestal 1 is connect by bolt 18 with ring flange 17, is equipped in the top of pedestal 1 and is protruded into 5 inner cavity of autoclave body
Lower kettle plug 2, between the lower kettle plug 2 and autoclave body 5 be equipped with lower seal assembly 3, the centre of lower kettle plug 2 be equipped with pressure sensor
19, lower kettle plug 2 is equipped with and 16 structure of boss that matches on the inside of autoclave body 5.
Further, the upper outside movable sleeve of autoclave body 5 is connected to coolant jacket 14, in the lower outside movable sleeve of autoclave body 5
It is connected to lower coolant jacket 4, for the upper coolant jacket 14 between nut 13 and filler port 7, the lower coolant jacket 4 is located at ring flange 17
Between heating furnace 15.The purpose that coolant jacket is arranged is to reduce the operating temperature of seal assembly, guarantees seal assembly reliable operation.
A kind of application method for the autoclave of axial compression test under high temperature and pressure, the method step are：One, it tries
Experiment device assembling：Autoclave body 5 and 13 connecting pin of nut are placed vertically downward first, then successively by lower seal assembly 3, lower kettle plug
2 are put into the interior intracavitary of autoclave body 5, then pressure sensor 19 is attached to the centre of lower kettle plug 2, load coolant jacket 4, ring flange after the completion
17, next pedestal 1 is buckled to onto the end face of lower kettle plug 2, finally ring flange 17 combines connection with pedestal 1 with bolt 18
Together, finishing device lower part assembles；After lower part is installed, overturns autoclave and placed so that pedestal 1 is vertical downward, then from kettle
Above the inner hole of body 5, it is sequentially placed into seal assembly 8, pressure ring 10, pressurizing piston bar 12, after inside is installed, next
Coolant jacket 14 and nut 13 are loaded onto, experimental rig is completed；Two, experimental rig is integrally put into pressure testing machine：It will test
Device is integrally put into pressure testing machine rear dress heating furnace 15, connection control pressurer system and corresponding pressure sensor in place,
The preparation stage is tested to complete；Three, experimental stage：0.5MPa test is injected to the inner cavity of autoclave by control pressurer system first
Media protection sample prevents from aoxidizing in heating process, then starts heating furnace 15 and heats to autoclave, heating process is by journey
Sequence control；After heating temperature arrives, temperature is kept for certain time, and control pressurer system is to axial compression test device under high temperature and pressure
Injection testing medium can start to carry out the clearing work of compression test initial pressure after injection, reset mesh to setting value
Be deduct cavity in pressure medium and piston rod frictional force influence, obtain being pressurized to the true pressure on sample, clearing is opened
Begin, manually control pressure testing machine pressurizing piston and slowly decline, after contacting pressurizing piston bar 12, pressure testing machine plus-pressure is gradually
Increase, there are the gap 3 ~ 4mm or so when due to filling sample between 12 lower end surface of pressurizing piston bar and sample, pressurizing piston bar 12 is pushed
Mono- section of idle stroke of Shi Huiyou, when pressure testing machine plus-pressure reaches a certain level, piston rod is begun to decline, at this time pressure sensing
19 numerical value of device starts to become larger, and since idle stroke exists, press pressure is slowly increased, at this time power be active force that medium generates and
The sum of piston rod frictional force, when pressurizing piston bar 12 continues to push under pressure testing machine control, pressurizing piston bar 12 is touched
Sample, press pressure increase sharply, and when increasing by 500 ~ 1000N, pressurizing piston bar 12 is completely attached to and preloaded with sample, this
When to pressure testing machine, sensing data reset, after clearing can according to the control program that test requirements document is previously set by
Pressure testing machine carries out applied voltage test, and sensor data transmission passes through calculating to pressure testing machine or collecting computer in test
Sample deformations amount is obtained, after obtaining sample forces and deformation relationship, so that it may which judgement calculates yield strength, creep rupture strength, the limit
The mechanics parameters such as breakdown strength, elasticity modulus.
Further, test(ing) medium can be the weak erosives liquid such as the indifferent gas such as argon gas and water, can be according to experiment
Need select, in the present embodiment, be selected as argon gas.
Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that with
Upper embodiment is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment to the utility model
It is described in detail, those skilled in the art should understand that, the technical solution of the utility model can be repaired
Change or equivalent replacement should all cover without departing from the objective and range of technical solutions of the utility model in the utility model
Scope of the claims in.
Claims (4)
1. a kind of autoclave for axial compression test under high temperature and pressure, it is characterised in that：It includes autoclave body（5）And heating furnace
（15）, the autoclave body（5）For cylindrical, hollow shape tube structure, autoclave body（5）Middle part on the outside of be equipped with bringing-up section bulge loop（6）, institute
State bringing-up section bulge loop（6）Outside be socketed with heating furnace（15）, in autoclave body（5）Upper end be equipped with pressurizing device, in autoclave body（5）'s
Lower end is equipped with support device, in bringing-up section bulge loop（6）Top autoclave body（5）Side wall be equipped with and autoclave body（5）Inner cavity is connected
Filler port（7）.
2. a kind of autoclave for axial compression test under high temperature and pressure according to claim 1, it is characterised in that：Institute
Stating pressurizing device includes nut（13）With pressurizing piston bar（12）, the nut（13）Pass through screw thread and autoclave body（5）Top
Connection, in nut（13）Centre be equipped with hard straight hole, equipped with pressurizing piston bar in hole（12）, the pressurizing piston bar（12）'s
Lateral wall is equipped with and nut（13）The boss matched（11）, in boss（11）Lower section be equipped with pivot bush unit pressure ring
（10）, the pressure ring（10）Lower section autoclave body（5）With pressurizing piston bar（12）Between be equipped with upper seal assembly（8）.
3. a kind of autoclave for axial compression test under high temperature and pressure according to claim 1, it is characterised in that：Institute
Stating support device includes ring flange（17）, lower kettle plug（2）And pedestal（1）, the ring flange（17）It is threadedly attached in kettle
Body（5）Bottom end, pedestal（1）Pass through bolt（18）With ring flange（17）Connection, in pedestal（1）Top be equipped with protrude into autoclave body
（5）The lower kettle plug of inner cavity（2）, the lower kettle plug（2）With autoclave body（5）Between be equipped with lower seal assembly（3）, in lower kettle plug（2）'s
Centre is equipped with pressure sensor（19）, lower kettle plug（2）It is equipped with and autoclave body（5）The boss that inside matches（16）Structure.
4. a kind of autoclave for axial compression test under high temperature and pressure according to claim 1, it is characterised in that：Institute
State autoclave body（5）Upper outside movable sleeve be connected to coolant jacket（14）, in autoclave body（5）Lower outside movable sleeve be connected to lower cooling
Set（4）, the upper coolant jacket（14）Positioned at nut（13）With filler port（7）Between, the lower coolant jacket（4）Positioned at ring flange
（17）With heating furnace（15）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820591289.2U CN208125527U (en) | 2018-04-24 | 2018-04-24 | A kind of autoclave for axial compression test under high temperature and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820591289.2U CN208125527U (en) | 2018-04-24 | 2018-04-24 | A kind of autoclave for axial compression test under high temperature and pressure |
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| Publication Number | Publication Date |
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| CN208125527U true CN208125527U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820591289.2U Expired - Fee Related CN208125527U (en) | 2018-04-24 | 2018-04-24 | A kind of autoclave for axial compression test under high temperature and pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342214A (en) * | 2018-12-19 | 2019-02-15 | 中国科学院地球化学研究所 | Compression test radial strain measuring device under a kind of high temperature and pressure |
| CN110108574A (en) * | 2019-05-27 | 2019-08-09 | 南京工业大学 | A kind of assembled high temperature loading test platform |
-
2018
- 2018-04-24 CN CN201820591289.2U patent/CN208125527U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342214A (en) * | 2018-12-19 | 2019-02-15 | 中国科学院地球化学研究所 | Compression test radial strain measuring device under a kind of high temperature and pressure |
| CN110108574A (en) * | 2019-05-27 | 2019-08-09 | 南京工业大学 | A kind of assembled high temperature loading test platform |
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Granted publication date: 20181120 Termination date: 20210424 |