CN109060852B - Pressurization and permeation device and real-time scanning device matched with medical CT - Google Patents
Pressurization and permeation device and real-time scanning device matched with medical CT Download PDFInfo
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- CN109060852B CN109060852B CN201810975801.8A CN201810975801A CN109060852B CN 109060852 B CN109060852 B CN 109060852B CN 201810975801 A CN201810975801 A CN 201810975801A CN 109060852 B CN109060852 B CN 109060852B
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- 210000004907 gland Anatomy 0.000 claims abstract description 66
- 238000009715 pressure infiltration Methods 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 2
- 230000035515 penetration Effects 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 4
- 238000013170 computed tomography imaging Methods 0.000 abstract description 2
- 238000009659 non-destructive testing Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 16
- 238000002591 computed tomography Methods 0.000 description 11
- 230000003204 osmotic effect Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002357 osmotic agent Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/616—Specific applications or type of materials earth materials
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pulmonology (AREA)
- Radiology & Medical Imaging (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a pressurizing and permeating device and a real-time scanning device matched with medical CT, belonging to the field of nondestructive testing of materials. The pressurizing and permeating device comprises a nitrogen cylinder, a barometer, a pressure reducing valve and a pressurizing and permeating device body. The pressure infiltration device body comprises a first gland, a second gland, a strut, a piston, a first transition joint and a second transition joint. The pillar has the stand structure in space chamber for the centre, and pillar one end and first gland are connected, and the other end and the second gland that first gland was kept away from to the pillar are connected, and the piston sets up in space intracavity portion and divide into first space chamber and second space chamber with the space chamber, and the piston can move the optional position in space chamber. The material of the pressure infiltration device body is aluminum. The pressurization and permeation device is simple in structure, reasonable in design and high in practicability. Aluminum is used as the material of the pressurizing and permeating device body, so that the medical CT imaging cannot be greatly influenced.
Description
Technical Field
The invention relates to the field of nondestructive testing of materials, in particular to a pressurizing and permeating device and a real-time scanning device matched with medical CT.
Background
The permeable pressure changes the internal stress state of the rock-soil mass, and the change of the stress state can adversely affect the rock-soil mass to cause the change of the permeability characteristic. In order to research the influence of the water permeability pressure on the internal structure of the soil body, many scholars adopt a CT scanning technology to research the influence of the water permeability pressure on the internal structure of the soil body, try to research the evolution law of the micro-crack expansion, closure and other microscopic structures of the rock and soil body under the action of the water permeability pressure through an observation means, and simultaneously develop a system and deeply research the permeability evolution law of the rock and soil body.
However, in the prior art, when CT continuous scanning is performed while osmotic pressure loading is performed, it is found that the material of the conventional pressure infiltration apparatus is usually made of iron or steel, and this material cannot be well penetrated by X-rays of medical CT, and the structural design of the apparatus does not usually consider the influence of CT scanning, so that the conventional pressure infiltration apparatus cannot meet the test conditions of CT scanning.
Disclosure of Invention
The invention aims to provide a pressurizing and permeating device, which overcomes the defects in the prior art, can effectively avoid the influence of CT scanning by the structure, and is convenient for researching the microscopically structural evolution rules of the rock-soil body, such as microcrack expansion, closure and the like under the action of water permeability pressure by adopting the CT scanning technology.
It is another object of the present invention to provide a real-time scanning device for medical CT, which has the full function of the pressure infiltration apparatus.
The embodiment of the invention is realized by the following steps:
a pressure osmosis device comprising
A nitrogen cylinder, a barometer, a pressure reducing valve and a pressurizing and permeating device body,
the nitrogen cylinder is connected with the barometer, the barometer is connected with the pressure reducing valve, and the pressure reducing valve is connected with the pressurizing and permeating device body;
the pressurizing and permeating device body comprises a first gland, a second gland, a strut, a piston, a first transition joint and a second transition joint;
the strut is of an upright column structure with a space cavity in the middle, one end of the strut is connected with the first gland, the other end of the strut, which is far away from the first gland, is connected with the second gland, the piston is arranged in the space cavity and divides the space cavity into a first space cavity and a second space cavity, and the piston can move to any position of the space cavity;
the first transition joint is connected with the first gland, and the second transition joint is connected with the second gland;
the pressure infiltration device body is made of aluminum.
Specifically, the pressurizing and permeating device is simple in structure, reasonable in design and high in practicability. The aluminum is used as the material of the pressure infiltration device body, so that the medical CT can carry out real-time scanning on the pressure infiltration device body without greatly influencing the CT scanning imaging of the pressure infiltration device body, and other materials which are easy to penetrate by X rays, such as carbon fiber, can be adopted in other embodiments.
Optionally, the pressure infiltration apparatus body further includes a first sealing ring configured to seal the first gland and the strut.
Optionally, the pressure infiltration apparatus body further includes a second sealing ring configured to seal the second gland and the strut.
Specifically, a sealing ring is arranged between the first pressing cover and the supporting column and between the second pressing cover and the supporting column, so that a good sealing effect can be achieved on the permeation device body. Meanwhile, a sealing ring can be adopted, and the sealing effect can be achieved.
Optionally, the first sealing ring is an O-ring.
Optionally, the second sealing ring is an O-ring.
Optionally, the nitrogen cylinder, the barometer and the pressure reducing valve are connected through a hydraulic pipeline, and the pressure reducing valve is connected with the first transition joint through a hydraulic pipeline.
Optionally, the first gland the second gland with be provided with the screw hole on the pillar, the screw hole of first gland with the screw hole cooperation of pillar, the screw hole of second gland with the screw hole cooperation of pillar, first gland with the connected mode of pillar is bolted connection, the second gland with the connected mode of pillar is bolted connection.
Specifically, bolted connection chooses bolted connection for use here as a detachable connected mode, can in time change and maintain first gland, second gland and pillar, has ensured this pressure penetrant unit's result of use, has prolonged this pressure penetrant unit's life.
Optionally, the number of the connecting bolts of the first gland and the support is 8, and the number of the connecting bolts of the second gland and the support is 8.
The invention also provides a real-time scanning device matched with the medical CT, which comprises the pressurizing and permeating device and the triaxial loading device, wherein the pressurizing and permeating device is connected with the triaxial loading device through a hydraulic pipeline.
Optionally, triaxial loading device includes triaxial loading device body, pressure head guide arm, first pressure head, second pressure head, rubber film, first pressure head with the second pressure head all overlaps and is equipped with rubber film, first pressure head with the second pressure head sets up relatively the inside of triaxial loading device body, the pressure head guide arm with this body coupling of triaxial loading device, the pressure head guide arm with the second transition joint passes through hydraulic pressure pipe connection.
Compared with the prior art, the beneficial effects of the embodiment of the invention include, for example:
the pressurization and permeation device is simple in structure, reasonable in design and high in practicability. Aluminum is used as the material of the pressurizing and permeating device body, so that the medical CT imaging cannot be greatly influenced.
The pressurizing and permeating device can be matched with a triaxial loading device to be horizontally placed on a medical CT scanning bed, and a pressure reducing valve is adjusted according to experiment requirements to carry out real-time dynamic CT scanning experiments under different osmotic pressure conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a pressure infiltration apparatus provided in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a body of a pressure osmotic engine provided in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a pressure osmotic engine body according to an embodiment of the present invention;
fig. 4 is a schematic view of a triaxial loading device of a real-time scanning device for cooperating with a medical CT according to an embodiment of the present invention.
Icon: 1-a pressurized osmotic device; 10-a pressurized osmotic engine body; 11-nitrogen gas cylinder; 12-a barometer; 13-a pressure relief valve; 101-a first gland; 102-a second gland; 103-a pillar; 104-a first transition joint; 105-a second transition joint; 106-a piston; 107-first seal ring; 108-a second sealing ring; 109-connecting bolts; 1030-space cavity; 1031-a first space chamber; 1032-a second space chamber; 2-a three-axis loading device; 20-a triaxial loading device body; 21-a ram guide; 22-a first ram; 23-a second ram; 24-rubber film.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
The terms "upper", "lower", "left", "right", "inner", "outer", and the like, refer to orientations or positional relationships based on orientations or positional relationships illustrated in the drawings or orientations and positional relationships that are conventionally used in the practice of the products of the present invention, and are used for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.
Furthermore, the terms "vertical" and the like do not require absolute perpendicularity between the components, but may be slightly inclined. Such as "vertical" merely means that the direction is relatively more vertical and does not mean that the structure must be perfectly vertical, but may be slightly inclined.
In the description of the present invention, it is also to be noted that the terms "disposed," "mounted," "connected," and the like are to be construed broadly unless otherwise specifically stated or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic view of a pressure permeation device 1 according to an embodiment of the present invention, and referring to fig. 1, a nitrogen cylinder 11 is connected to a barometer 12 through a hydraulic pipeline, the barometer 12 is connected to a pressure reducing valve 13 through a hydraulic pipeline, the pressure reducing valve 13 is connected to a first transition joint 104 of a pressure permeation device body 10 through a hydraulic pipeline, and a user can adjust the pressure reducing valve 13 to apply different permeation pressures according to different experimental requirements, and perform real-time dynamic CT scanning when a predetermined permeation pressure is reached.
Fig. 2 is a cross-sectional view of a pressure infiltration apparatus body 10 according to an embodiment of the present invention, and referring to fig. 2, the pressure infiltration apparatus body 10 includes a first gland 101, a second gland 102, a pillar 103, a piston 106, a first transition joint 104, and a second transition joint 105. The strut 103 is a column structure having a space chamber 1030 in the middle, one end of the strut 103 is connected to the first pressing cover 101, the other end of the strut 103, which is away from the first pressing cover 101, is connected to the second pressing cover 102, the piston 106 is disposed inside the space chamber 1030 and divides the space chamber 1030 into a first space chamber 1031 and a second space chamber 1032, and the piston 106 can move to any position of the space chamber 1030. The pressure infiltration apparatus body 10 is made of aluminum.
It should be noted that, in this embodiment, the material of the pressure infiltration apparatus body 10 made of aluminum does not limit the material of the pressure infiltration apparatus body 10, and in other embodiments, copper or other materials that are easily penetrated by X-rays may also be used, which also achieves the purpose of stabilizing the medical CT scan imaging.
Referring again to fig. 2, the pressure infiltration apparatus body 10 further includes a first sealing ring 107 and a second sealing ring 108, the first sealing ring 107 is configured to seal the first gland 101 and the support column 103, and the second sealing ring 108 is configured to seal the second gland 102 and the support column 103.
Before the experiment is prepared, the second space chamber 1032 is filled with the osmotic agent water, then the strut 103 and the second gland 102 are connected in a sealing way, then the valve of the nitrogen gas cylinder 11 is opened, and the air in the first space chamber 1031 is emptied by adjusting the pressure reducing valve 13.
Fig. 3 is a top view of a pressure infiltration apparatus body 10 according to an embodiment of the present invention, referring to fig. 3, threaded holes are provided on a first gland 101, a second gland 102 and a support post 103, the threaded hole of the first gland 101 is matched with the threaded hole of the support post 103, the threaded hole of the second gland 102 is matched with the threaded hole of the support post 103, the first gland 101 and the support post 103 are connected by bolts, and the second gland 102 and the support post 103 are connected by bolts. The number of the connecting bolts 109 of the first gland 101 and the support column 103 is 8, and the number of the connecting bolts 109 of the second gland 102 and the support column 103 is 8. The 8 connecting bolts 109 on the first gland 101 are uniformly distributed on the surface of the first gland 101, and the 8 connecting bolts 109 on the second gland 102 are uniformly distributed on the surface of the second gland 102.
The bolt connection is adopted as a detachable connection mode, and the air in the first space chamber 1031 and the permeating medium water in the second space chamber 1032 can be conveniently regulated and controlled by using the bolt connection in the embodiment. Meanwhile, the bolt connection is beneficial to the replacement and maintenance of the first gland 101, the second gland 102 and the strut 103, the use effect of the pressure permeation device 1 is ensured, and the service life of the pressure permeation device 1 is prolonged.
It should be noted that other connection forms or different numbers of bolts may be used to install the gland at different positions in other embodiments, and the embodiment does not limit the connection manner between the gland and the pillar 103, nor the number and position of the bolts.
Fig. 4 is a schematic view of a triaxial loading device 2 of a real-time scanning device for cooperating with a medical CT according to an embodiment of the present invention, please refer to fig. 4, the triaxial loading device 2 includes a triaxial loading device body 20, a pressure head guide 21, a first pressure head 22, a second pressure head 23, and a rubber film 24, the first pressure head 22 and the second pressure head 23 are both sleeved with the rubber film 24, the first pressure head 22 and the second pressure head 23 are oppositely disposed inside the triaxial loading device body 20, the pressure head guide 21 is connected to the triaxial loading device body 20, and the pressure head guide 21 is connected to the second transition joint 105 through a hydraulic pipeline. The sample is placed between the first indenter 22 and the second indenter 23.
Referring to fig. 1-4, the specific test steps of the present invention are as follows:
1) connecting the prepared pressure head guide rod 21, the first pressure head 22, the rubber film 24, the sample and the second pressure head 23, and embedding an O-shaped sealing ring in a sealing groove of the first pressure head 22 and the second pressure head 23 to fix and seal the pressure head.
2) The connected pressure head guide rod 21, the first pressure head 22, the rubber film 24, the sample and the second pressure head 23 are put into the triaxial loading device 2 together.
3) The piston 106 is put in an intermediate position inside the pillar 103, and then the first gland 101 and the pillar 103 are sealingly connected.
4) The nitrogen gas cylinder 11, the barometer 12, the pressure reducing valve 13 and the first transition joint 104 are connected.
5) The second space chamber 1032 is filled with water as a permeation medium, and the column 103 and the second gland 102 are sealingly connected.
6) The valve of the nitrogen gas cylinder 11 is opened and the air in the first space chamber 1031 is evacuated by adjusting the pressure reducing valve 13.
7) After the air is exhausted, the valve is closed and the second transition joint 105 is connected to the ram guide 21.
8) And putting the connected triaxial loading device 2, the pressure head guide rod 21, the first pressure head 22, the rubber film 24, the sample and the second pressure head 23 into a medical CT machine scanning bed.
9) And opening a valve of the nitrogen cylinder 11, applying osmotic pressure according to different experimental requirements by adjusting the pressure reducing valve 13, carrying out real-time dynamic CT scanning when the preset osmotic pressure is reached, and recording related data.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pressure penetration device is characterized by comprising a nitrogen cylinder, a barometer, a pressure reducing valve and a pressure penetration device body,
the nitrogen cylinder is connected with the barometer, the barometer is connected with the pressure reducing valve, and the pressure reducing valve is connected with the pressurizing and permeating device body;
the pressurizing and permeating device body comprises a first gland, a second gland, a strut, a piston, a first transition joint and a second transition joint;
the strut is of an upright column structure with a space cavity in the middle, one end of the strut is connected with the first gland, the other end of the strut, which is far away from the first gland, is connected with the second gland, the piston is arranged in the space cavity and divides the space cavity into a first space cavity and a second space cavity, and the piston can move to any position of the space cavity;
the first transition joint is connected with the first gland, and the second transition joint is connected with the second gland;
the pressure infiltration device body is made of aluminum.
2. The pressure infiltration apparatus of claim 1, wherein the pressure infiltration apparatus body further includes a first seal ring configured to seal the first gland and the strut.
3. The pressure infiltration apparatus of claim 1, wherein the pressure infiltration apparatus body further includes a second seal ring configured to seal the second gland and the strut.
4. The pressure infiltration apparatus of claim 2, wherein the first seal ring is an O-ring seal.
5. The pressure infiltration apparatus of claim 3, wherein the second seal ring is an O-ring seal.
6. The pressure infiltration apparatus of claim 1, wherein the nitrogen gas cylinder, the gas pressure gauge, and the pressure reducing valve are connected by hydraulic lines, and the pressure reducing valve and the first transition joint are connected by hydraulic lines.
7. The pressure infiltration apparatus of claim 1, wherein the first gland, the second gland and the strut are provided with threaded holes, the threaded hole of the first gland is matched with the threaded hole of the strut, the threaded hole of the second gland is matched with the threaded hole of the strut, the first gland is connected with the strut by bolts, and the second gland is connected with the strut by bolts.
8. The pressure infiltration apparatus of claim 7, wherein the number of tie bolts of the first gland and the strut is 8, and the number of tie bolts of the second gland and the strut is 8.
9. A real-time scanning device for medical CT, comprising the pressure infiltration apparatus of any one of claims 1-8 and a triaxial loading apparatus, wherein the pressure infiltration apparatus and the triaxial loading apparatus are connected by a hydraulic pipeline.
10. The real-time scanning device of cooperation medical CT of claim 9, characterized in that, the triaxial loading device includes triaxial loading device body, pressure head guide arm, first pressure head, second pressure head, rubber membrane, first pressure head with the second pressure head all overlap and be equipped with the rubber membrane, first pressure head with the second pressure head sets up relatively in the inside of triaxial loading device body, pressure head guide arm with this body coupling of triaxial loading device, pressure head guide arm with the second transition connects passes through hydraulic pressure pipe connection.
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