CN115219346A - Heating and pressurizing experimental device for tubular sample and using method thereof - Google Patents
Heating and pressurizing experimental device for tubular sample and using method thereof Download PDFInfo
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- CN115219346A CN115219346A CN202110430974.3A CN202110430974A CN115219346A CN 115219346 A CN115219346 A CN 115219346A CN 202110430974 A CN202110430974 A CN 202110430974A CN 115219346 A CN115219346 A CN 115219346A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
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- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- 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
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Abstract
The application relates to a high-temperature and high-pressure test technology, and discloses a heating and pressurizing experimental device for a tubular sample and a using method thereof. The device comprises a heating furnace provided with a door body, a high-pressure sample part comprising a sample pressurization connecting pipeline and a pretightening force sealing device, wherein the door body is provided with a first pipeline, the heating furnace is also provided with a second pipeline for connecting a vacuum pump and at least one observation window for monitoring the experimental state of a tubular sample; the first port of the sample pressurizing connecting pipeline is used for connecting a tubular sample, the second port of the sample pressurizing connecting pipeline is used for connecting high-pressure gas, and the outer diameter of the sample pressurizing connecting pipeline is slightly smaller than the inner diameter of the first pipeline; the pretightening force sealing device is used for detachably and hermetically installing the high-pressure sample component in the first pipeline.
Description
Technical Field
The application relates to a high-temperature high-pressure test device technology, in particular to a heating and pressurizing experimental device technology for a tubular sample.
Background
The high-temperature and high-pressure condition test of the tubular structure sample is an important material performance test means of the structural material applied to various extreme conditions such as a reactor, can reflect the material performance changes such as creep deformation, fatigue and the like of the tubular structure material under the extreme conditions to the maximum extent, and lays a good experimental foundation for engineering application.
However, at present, no high-temperature and high-pressure experimental device suitable for the tubular structural sample exists temporarily, and the high-temperature and high-pressure test requirement of the tubular structural sample cannot be met, so that a device needs to be developed to meet the high-temperature and high-pressure test requirement of the tubular structural sample, and a material parameter basis is laid for material application under extreme conditions.
Disclosure of Invention
The application aims to provide a heating and pressurizing experimental device for a tubular sample and a using method thereof, which can ensure the optimal observation position of the sample while meeting the sealing property of the experimental device, and can realize the high-temperature and high-pressure in-situ experimental function of the sample, thereby providing relatively real data of materials under corresponding service conditions.
The application discloses a heating pressurization experimental apparatus for tubular sample includes:
the device comprises a heating furnace provided with a door body, wherein the door body is provided with a first pipeline, the heating furnace is also provided with a second pipeline for vacuumizing and at least one observation window for monitoring the experimental state of a tubular sample;
the high-pressure sample part comprises a sample pressurizing connecting pipeline, a first port of the sample pressurizing connecting pipeline is used for connecting a tubular sample, a second port of the sample pressurizing connecting pipeline is used for connecting high-pressure gas, and the outer diameter of the sample pressurizing connecting pipeline is slightly smaller than the inner diameter of the first pipeline;
and the pretightening force sealing device is used for detachably and hermetically installing the high-pressure sample component in the first pipeline.
In a preferred embodiment, the first pipe is extended to the outside of the furnace by a preset length along the central axis direction;
the pre-tightening force sealing device comprises a pre-tightening unit and a sealing unit, the pre-tightening unit is arranged on the furnace external extension part of the first pipeline, and the sealing unit is arranged between the furnace external extension part of the first pipeline and the sample pressurizing connecting pipeline.
In a preferred embodiment, the at least one observation window comprises a first observation window arranged in the axial direction of the tubular sample and at least one second observation window arranged in the radial direction of the tubular sample.
In a preferred embodiment, the heating furnace further comprises a furnace body, and the furnace body is detachably connected with the door body in a sealing manner or connected with the door body in a sealing hinge manner;
the high pressure sample component further includes a barometer and a valve disposed at a second port thereof.
In a preferred embodiment, the second pipeline is also used for introducing inert gas;
the heating furnace is also provided with a third pipeline which is used as an exhaust passage.
In a preferred example, the height of the second duct is higher than the height of the third duct;
the second pipeline and the third pipeline are both arranged on the door body, and the height of the first pipeline is between the height of the second pipeline and the height of the third pipeline.
In a preferred embodiment, the second duct and the third duct are respectively extended by a predetermined length from the outside of the furnace in the direction of the central axis thereof;
valves are respectively arranged at the ports of the extension parts outside the furnace of the second pipeline and the third pipeline.
In a preferred example, the first port of the sample pressurization connecting pipeline and the tubular sample are connected in a welding and sealing mode;
and a heating heat preservation and temperature control system is arranged in the heating furnace.
The application also discloses a use method of the heating and pressurizing experimental device for the tubular sample, which comprises the following steps:
opening the door body, and welding the tubular sample and a sample pressure connecting pipeline which penetrates through the first pipeline;
and closing the door body, and sealing and fixing the sample pressurizing connecting pipeline in the first pipeline by adopting a pretightening force sealing device.
In a preferred embodiment, the at least one observation window comprises a first observation window arranged in the axial direction of the tubular sample and at least one second observation window arranged in the radial direction of the tubular sample;
before adopting pretightning force sealing device to fix sample pressurization connecting tube seal in first pipeline, still include:
adjusting the position of the tubular sample pressurizing connecting pipeline in the heating furnace through the second observation window so as to ensure that the sample is in the observation range of the second observation window;
after the sample pressurization connecting pipeline is sealed and fixed in the first pipeline by adopting the pretightening force sealing device, the pretightening force sealing device also comprises: and monitoring the axial parameter and the radial parameter of the tubular sample in real time through the first window and the second window respectively.
The embodiment of the application at least comprises the following advantages and beneficial effects:
and opening the sealing door, welding and connecting the tubular sample with a sample pressurizing connecting pipeline which is put in through a first pipeline reserved in the sealing door, closing the sealing door, adjusting the sample in the furnace to the optimal observation position through the second observation window, and then sealing and installing the sample pressurizing connecting pipeline in the first pipeline through the pretightening force sealing device. The optimal observation position of the sample is ensured while the sealing performance of the experimental device is met.
Through setting up an axial observation window and two radial at least observation windows, realize more comprehensive experimental data acquisition, improve the degree of accuracy of experiment.
The second pipeline and the third pipeline are used as gas circulation channels to vacuumize the furnace body or introduce argon for protection, and high-pressure gas is filled into the tubular sample, so that the function of high-pressure testing under various extreme conditions similar to that of an ultra-supercritical reactor is realized, and various experimental requirements are met.
After the furnace body is filled with vacuum or argon, heating and temperature rising are started, the temperature rising speed can be controlled in real time through the temperature control system, and the temperature in the furnace is monitored.
In addition, the fine vacuum heating and the high temperature high pressure experimental conditions who has realized tubular sample of this application's embodiment, adverse effect such as sample oxidation when having avoided the heating provides more comprehensive monitoring condition for parameter monitoring under the tubular sample high temperature high pressure simultaneously, improves the degree of accuracy of experiment.
A large number of technical features are described in the specification of the present application, and are distributed in various technical solutions, so that the specification is too long if all possible combinations of the technical features (i.e., the technical solutions) in the present application are listed. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of the technical features is technically infeasible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, then the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.
Drawings
Fig. 1 is a schematic view of the overall structure of a heating and pressurizing experimental device for a tubular sample according to a first embodiment of the present application.
FIG. 2 is a schematic view of an exemplary furnace body construction according to a first embodiment of the present application.
FIG. 3 is a schematic view of an exemplary door body structure according to a first embodiment of the present application.
Fig. 4 is a schematic diagram of an exemplary high pressure sample component structure according to a first embodiment of the present application.
FIG. 5 is a schematic diagram of an example preload seal arrangement according to a first embodiment of the present application.
Fig. 6 is a schematic flow chart of a method for using the heating and pressurizing experimental device for the tubular sample according to the second embodiment of the application.
FIG. 7 is a schematic diagram of the exemplary experimental setup shown in FIG. 1 according to the present application after completion of the experimental preparation.
Wherein the content of the first and second substances,
101-heating furnace 1011-furnace body 1012-door body
102-high pressure sample component 103-pretightening force sealing device 201-first observation window
202-second viewing window 301-first conduit 302-second conduit
303-third pipe 401-tubular sample 402-pretightening force sealing washer
403-barometer 404-valve 405-sample pressurization connecting pipe
Detailed Description
In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application may be implemented without these technical details and with various changes and modifications based on the following embodiments.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The first embodiment of the present application relates to a heating and pressurizing experimental device for a tubular sample, which comprises a heating furnace 101, a high-pressure sample part 102 and a pretightening sealing device 103, as shown in fig. 1, 2 and 3.
Specifically, the heating furnace 101 comprises a furnace body 1011 and a door 1012, wherein the door 1012 is provided with a first pipeline 301, and the heating furnace 101 is further provided with a second pipeline 302 for connecting a vacuum pump and at least one observation window for monitoring the state of a tubular sample. The vacuum pump and the second pipe 302 may be connected by a clamp or a screw, for example.
Optionally, the door body 1012 and the furnace body 1011 are detachably and hermetically connected through a detachable structure and a sealing structure. For example, the sealing structure may be a sealing gasket disposed on the door 1012 and/or the oven body 1011. For example, the lower surface of the door body 1012 is provided with a pulley, and the lower part of the side of the oven body 1011 where the door body 1012 is mounted is provided with a guide rail, wherein the pulley and the guide rail cooperate to form the detachable structure. Alternatively, the door body 1012 and the oven body 1011 may be a sealed hinge connection or the like.
The second duct 302 may be provided in the furnace main body 1011 or the door 1012. Optionally, a third pipeline 303 may be further disposed on the heating furnace 101. Further, the second pipe 302 and the third pipe 303 provide a circulation passage for the inert gas to circulate. For example, the second pipe 302 is used for introducing an inert gas, and the third pipe 303 is used as a gas outflow passage.
Optionally, the height of the second conduit 302 is higher than the height of the third conduit 303. Optionally, the second duct 302 and the third duct 303 are both disposed on the door body 1012, and the height of the first duct 301 is between the height of the second duct 302 and the height of the third duct 303.
Alternatively, the second pipe 302 and the third pipe 303 respectively extend to the outside of the furnace along the respective central axis directions by a predetermined length, and the specific length may be set as required, and the second pipe 302 and the third pipe 303 are provided with valves at the portions extending to the outside of the furnace, and are connected with the vacuum pump and the barometer by using a clamp or a screw thread.
Alternatively, the first duct 301 is sealed with the door body 1012, for example, by welding, through the door body 1012; the second duct 302 and the third duct 303 are sealed by welding, for example, through the furnace body 1011 or the door 1012 to ensure sealing.
The at least one observation window is used for observing parameter changes of the sample under the high-temperature and high-pressure experiment condition, and the at least one observation window provide reliable interfaces for realizing real-time data monitoring and ensure that the experiment can be carried out in situ. Each viewing window is preferably of a high temperature resistant material. And a sample parameter detection device, such as but not limited to a laser detector and the like, is externally connected to each observation window.
Optionally, as shown in fig. 1 and 2, the at least one observation window includes a first observation window 201 disposed in an axial direction of the tubular sample and a second observation window 202 disposed in a radial direction of the tubular sample, where the first observation window 201 is used for monitoring an axial state of the tubular sample, and the second observation window 202 is used for monitoring a radial state of the tubular sample. Further, the second viewing window 202 is also used to adjust the position of the tubular sample in the furnace to ensure that the tubular sample is in the best viewing position of the second viewing window 202 when the high pressure sample component is installed.
Optionally, the at least one observation window may further include a first observation window disposed in an axial direction of the tubular sample and a plurality of second observation windows disposed in a radial direction of the tubular sample, where the first observation window is configured to monitor an axial experimental state of the tubular sample, and the plurality of second observation windows are configured to monitor radial experimental states of different positions of the tubular sample, respectively. For example, the furnace body is provided in a cylindrical shape, and the plurality of second observation windows may be distributed around the furnace body at equal or unequal intervals, for example. For another example, the furnace body is provided in a rectangular parallelepiped or square shape, and the plurality of second observation windows may be distributed on four sides of the rectangular parallelepiped or square, for example.
The high-pressure sample part 102 comprises a sample pressurizing connecting pipeline, a first port of the sample pressurizing connecting pipeline is used for connecting a tubular sample, a second port of the sample pressurizing connecting pipeline is used for connecting high-pressure gas, and the outer diameter of the sample pressurizing connecting pipeline is slightly smaller than the inner diameter of the first pipeline so as to facilitate the sample pressurizing connecting pipeline to pass through the first pipeline and then realize subsequent pre-tightening force sealing installation.
Optionally, the first port of the sample pressure connection conduit is connected to the tubular sample, such as, but not limited to, by welding.
Optionally, the high pressure sample block 102 further comprises a barometer and a valve disposed at the second port of the sample pressurization connection.
Figure 4 illustrates an example high pressure sample part. As shown in fig. 4, the high pressure sample block 102 includes a tubular sample 401, a pre-load sealing gasket 402, a barometer 403, a valve 404, and a sample pressure connection 405; the pre-tightening force sealing washer 402 is fixed on the outer side of the sample pressurizing connecting pipeline 405 and used for sealing the sample pressurizing connecting pipeline 405 and the first pipeline 301 during subsequent pre-tightening force sealing installation, and the tubular sample 401 and the sample pressurizing connecting pipeline 405 are welded and sealed, so that sealing of a high-pressure sample part is further guaranteed. In use, the high pressure sample component is connected to a high pressure gas filling tube type sample through the second port, and the gas pressure is controlled through the barometer 403 and the valve 404, so that the pressure conditions, such as axial and longitudinal pressure conditions, in a reactor or other pipelines in a high temperature and high pressure working environment can be simulated.
The preload seal 103 is used to removably seal the sample pressurized connection conduit in the first conduit 301. Therefore, the loading and unloading of the sample are facilitated, the sealing performance of the door cannot be damaged, and meanwhile, the position of the tubular sample in the furnace can be adjusted according to the requirement.
Optionally, the preload seal 103 comprises a preload unit and a seal unit, the seal unit being made of an elastic material. As shown in fig. 5, an exemplary pretightening force sealing device is provided, and the pretightening force sealing device may be, for example, a jacket clamp 304 disposed on the first pipe 301 extending to the outside of the furnace, and the sealing unit may be, for example, a sealing washer 302 or the like disposed on the outer surface of the sample pressure connection pipe to detachably and sealingly mount the sample pressure connection pipe in the first pipe 301.
Optionally, a heating insulation and temperature control system is further disposed in the heating furnace 101, and is used for ensuring that the temperature in the furnace is stable and adjustable.
A second embodiment of the present application relates to a method for using a heat and pressure experimental apparatus for a tubular sample, the heat and pressure experimental apparatus according to the first embodiment, a flowchart of the method for using is shown in fig. 6, and specifically includes the following steps:
at the beginning, in step 601, before the experiment begins, the door body is opened, and a tubular sample and a sample pressure connecting pipeline penetrating through the first pipeline are welded;
then, step 602 is executed to close the door, and the sample pressurization connecting pipeline is sealed and fixed in the first pipeline by using a pre-tightening force sealing device.
It should be noted that steps 601 to 602 are experiment preparation stages, and specific experiment operations can be performed according to specific process parameter requirements, which belong to the prior art and are not developed in the present application.
Optionally, the at least one viewing window comprises a first viewing window provided in an axial direction of the tubular sample and at least one second viewing window provided in a radial direction of the tubular sample. In this alternative embodiment, before the "sealing and fixing the sample pressure connection pipe in the first pipe by the pretightening force sealing device", the following steps may be further included: adjusting the position of the tubular sample pressurizing connecting pipeline in the heating furnace through the second observation window to ensure that the sample is in the observation range of the second observation window; and after the step of sealing and fixing the sample pressurization connecting pipeline in the first pipeline by adopting the pretightening force sealing device, the method also comprises the following steps: and monitoring the axial parameter and the radial parameter of the tubular sample in real time through the first window and the second window respectively.
For example, the method for using the experimental device shown in fig. 1 specifically includes: firstly, opening a door body, and welding a tubular sample and a sample pressurizing connecting pipeline which is put in through a first pipeline of the door body; then, the door body is closed and fastened tightly to ensure that the integral sealing door and the furnace body are sealed; meanwhile, the position of the tubular sample pressurizing connecting pipeline in the heating furnace is adjusted through the second observation window so as to ensure that the sample is in the observation range of the second observation window; then, a pre-tightening force sealing device is adopted to hermetically install the sample pressurizing connecting pipeline in the first pipeline, and the pre-tightening force sealing device plays a role in fixing the positions of the sample and the sample pressurizing connecting pipeline at the same time, and fig. 7 is a state schematic diagram after the experimental preparation of the experimental device is completed; then, a vacuum pump or an argon protection device connected with the second pipeline and the third pipeline in an external connection mode and a valve of a sample pressurizing connecting pipeline are opened, vacuumizing or argon protection is carried out in the heating furnace, the vacuum degree in the heating furnace is monitored through a barometer, the proper vacuum degree is ensured to be reached, or argon is introduced, and circular flow of argon is realized, so that the sample is prevented from being oxidized during heating, and the experiment is ensured to be normally carried out (for example, the vacuum degree can reach 10Pa and the like, the sample is ensured not to be oxidized during heating, heating and temperature rise are started after the vacuum or argon is ensured to be filled in the furnace body, and the temperature can be raised to 1200 ℃ and kept; meanwhile, high-pressure gas (for example, the highest pressure can reach 49Mpa and the like) is filled into the tubular sample in the high-pressure sample part so as to realize the function of high-pressure test under various extreme conditions like an ultra-supercritical reactor, the furnace body is heated and heated after the vacuum degree is ensured to meet the requirement or argon is filled in the furnace body, and the temperature is controlled to rise to the preset experiment temperature through a temperature control system of the furnace body and then is kept; finally, the corresponding parameters of the tubular sample are monitored through the first observation window and the second observation window by utilizing external equipment such as an optical monitoring instrument, so that the corresponding behaviors of the sample under high temperature and high pressure can be reflected in real time, and the functions of in-situ measurement and real-time measurement are realized.
It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that a certain action is executed according to a certain element, it means that the action is executed according to at least the element, and two cases are included: performing the action based only on the element, and performing the action based on the element and other elements. The expression of a plurality of, a plurality of and the like includes 2, 2 and more than 2, more than 2 and more than 2.
All documents mentioned in this application are to be considered as being incorporated in their entirety into the disclosure of this application so as to be subject to modification as necessary. Further, it should be understood that various changes or modifications can be made to the present application by those skilled in the art after reading the above disclosure of the present application, and these equivalents also fall within the scope of the present application as claimed.
Claims (10)
1. A heating and pressurizing experimental device for tubular samples is characterized by comprising:
the device comprises a heating furnace provided with a door body, wherein the door body is provided with a first pipeline, the heating furnace is also provided with a second pipeline for vacuumizing and at least one observation window for monitoring the experimental state of a tubular sample;
the high-pressure sample part comprises a sample pressurizing connecting pipeline, a first port of the sample pressurizing connecting pipeline is used for connecting a tubular sample, a second port of the sample pressurizing connecting pipeline is used for connecting high-pressure gas, and the outer diameter of the sample pressurizing connecting pipeline is slightly smaller than the inner diameter of the first pipeline;
and the pretightening force sealing device is used for detachably and hermetically mounting the high-pressure sample component in the first pipeline.
2. The apparatus for the heating and pressurizing test of a tubular sample according to claim 1, wherein the first pipe is extended by a predetermined length from the outside of the furnace in a direction of a central axis thereof;
the pre-tightening force sealing device comprises a pre-tightening unit and a sealing unit, the pre-tightening unit is arranged on the furnace external extending part of the first pipeline, and the sealing unit is arranged between the furnace external extending part of the first pipeline and the sample pressurizing connecting pipeline.
3. The apparatus according to claim 1 or 2, wherein the at least one observation window comprises a first observation window disposed in an axial direction of the tubular sample and at least one second observation window disposed in a radial direction of the tubular sample.
4. The heating and pressurizing experimental device for the tubular sample as claimed in claim 1, wherein the heating furnace further comprises a furnace body, and the furnace body is detachably connected with the door body in a sealing manner or connected with the door body in a sealing hinge manner;
the high pressure sample assembly further includes a barometer and a valve disposed at a second port thereof.
5. The apparatus for heating and pressurizing a tubular sample according to claim 1, wherein the second pipeline is further used for introducing an inert gas;
the heating furnace is also provided with a third pipeline which is used as an exhaust passage.
6. The apparatus according to claim 5, wherein the second conduit is higher than the third conduit;
the second pipeline and the third pipeline are both arranged on the door body, and the height of the first pipeline is between that of the second pipeline and that of the third pipeline.
7. The apparatus for the heating and pressurizing test of a tubular sample according to claim 6, wherein the second duct and the third duct are each extended by a predetermined length outward of the furnace in the direction of the respective center axes;
valves are respectively arranged at the ports of the furnace external extending parts of the second pipeline and the third pipeline.
8. The apparatus for heating and pressurizing test of tubular samples according to claim 1, wherein the first port of the sample pressurizing connecting pipeline and the tubular sample are hermetically connected by welding;
and a heating heat preservation and temperature control system is arranged in the heating furnace.
9. A method of using the apparatus for the tube sample thermal pressure test according to claim 1, comprising:
opening the door body, and welding the tubular sample and a sample pressure connecting pipeline which penetrates through the first pipeline;
and closing the door body, and sealing and fixing the sample pressurizing connecting pipeline in the first pipeline by adopting a pretightening force sealing device.
10. The use of claim 9, wherein the at least one viewing window comprises a first viewing window disposed in an axial direction of the tubular sample and at least one second viewing window disposed in a radial direction of the tubular sample;
before the sample pressurization connecting pipeline is sealed and fixed in the first pipeline by adopting the pretightening force sealing device, the pretightening force sealing device also comprises the following steps: adjusting the position of the tubular sample pressurizing connecting pipeline in the heating furnace through the second observation window to ensure that the sample is in the observation range of the second observation window;
after the sample pressurization connecting pipeline is sealed and fixed in the first pipeline by adopting the pretightening force sealing device, the method also comprises the following steps: and monitoring the axial parameter and the radial parameter of the tubular sample in real time through the first window and the second window respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110430974.3A CN115219346A (en) | 2021-04-21 | 2021-04-21 | Heating and pressurizing experimental device for tubular sample and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110430974.3A CN115219346A (en) | 2021-04-21 | 2021-04-21 | Heating and pressurizing experimental device for tubular sample and using method thereof |
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| CN115219346A true CN115219346A (en) | 2022-10-21 |
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| CN202110430974.3A Pending CN115219346A (en) | 2021-04-21 | 2021-04-21 | Heating and pressurizing experimental device for tubular sample and using method thereof |
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