CN108562484A - A kind of double pressure cover - Google Patents
A kind of double pressure cover Download PDFInfo
- Publication number
- CN108562484A CN108562484A CN201810658463.5A CN201810658463A CN108562484A CN 108562484 A CN108562484 A CN 108562484A CN 201810658463 A CN201810658463 A CN 201810658463A CN 108562484 A CN108562484 A CN 108562484A
- Authority
- CN
- China
- Prior art keywords
- pressure
- cover plate
- upper cover
- cylinder block
- outer cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010410 layer Substances 0.000 claims abstract description 42
- 239000011229 interlayer Substances 0.000 claims abstract description 24
- 239000005341 toughened glass Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000012780 transparent material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 238000003556 assay Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000012669 compression test Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
-
- 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
-
- 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
- G01N2203/0048—Hydraulic means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of double pressure covers comprising：Upper cover plate, lower cover, outer cylinder block and the internal layer cylinder body in outer cylinder block, the upper end of outer cylinder block and internal layer cylinder body is tightly connected with upper cover plate, the lower end of outer cylinder block and internal layer cylinder body is tightly connected with lower cover, sample accommodating chamber is connected with the first high-pressure pump for pressure in Control Assay accommodating chamber by upper cover plate and/or lower cover, interlayer cavity is connected with by upper cover plate and/or lower cover for controlling the second high-pressure pump of pressure in interlayer cavity, and the pressure in sample accommodating chamber is more than the pressure in interlayer cavity.The double pressure cover of the present invention can be in the case where not increasing pressure shield cylinder body wall thickness, being balanced by interlayer internal pressure reduces Cylinder block stress, improve the anti-pressure ability of pressure shield, so that the job requirement of larger diameter pressure shield is also disclosure satisfy that in the pressure shield using low-intensity materials such as organic glass or tempered glass, convenient for directly observing the situation inside pressure shield.
Description
Technical field
The present invention relates to triaxial compression test technical fields, and in particular to a kind of double pressure cover.
Background technology
In certain special cases, transparent pressure shield is needed, you can to bear pressure, and the internal feelings of observation can be facilitated
Condition, such as geotechnological triaxial compression test is by the way that test specimen is put into a pressure shield, applies hydraulic pressure in pressure shield（Generally in 2MPa
Left and right）, to apply confining pressure to test specimen, the test specimen smaller to size, such as the test specimen of Φ 61.8mm, pressure shield diameter is about
80mm, cover material common at present are the tempered glass that thickness is 10mm.But to large-sized test specimen, such as the examination of Φ 300mm
Part, a diameter of 400mm of pressure shield, because size is larger, 10mm thickness tempered glass cannot be met the requirements, but be influenced by processing technology
Cover body thickness cannot be significantly increased again, so the pressure shield of large scale geotechnique's triaxial compression test is all made of steel at present, and be
Achieve the purpose that observe test specimen, part of the manufacturer uses installs illumination and photographic device additional in pressure shield, but because in pressure shield pacifying
Narrow space after dress test specimen, imaging effect is very poor, and range of observation is restricted.
Invention content
In order in the case where not increasing pressure shield wall thickness, improve the anti-pressure ability of pressure shield, the present invention provides one kind and holds
By the double-deck cover body structure of larger interior pressure, specific technical solution is as follows.
For problems of the prior art, the present invention provides a kind of double pressure cover, can use tempered glass or
The transparent materials such as organic glass, thickness of cover body on the basis of size is increased without increase cover material.
A kind of double pressure cover comprising：Upper cover plate, lower cover, outer cylinder block and in the outer cylinder block in
The upper end of layer cylinder body, the outer cylinder block and internal layer cylinder body is tightly connected with the upper cover plate, the outer cylinder block and internal layer
The lower end of cylinder body is tightly connected with the lower cover, and the upper cover plate, lower cover and internal layer cylinder body are formed together is used for sample
Accommodating chamber, the upper cover plate, lower cover, internal layer cylinder body and outer cylinder block form interlayer cavity together, and the sample accommodating chamber passes through
The upper cover plate and/or lower cover are connected with the first high-pressure pump for controlling pressure in the sample accommodating chamber, the interlayer
Chamber is connected with by the upper cover plate and/or lower cover for controlling the second high-pressure pump of pressure in the interlayer cavity, the sample
Pressure in accommodating chamber is more than the pressure in the interlayer cavity.
Further, the outer cylinder block and internal layer cylinder body are all made of transparent material and are made；Preferably, the outer cylinder block
It is all made of tempered glass with internal layer cylinder body or organic glass is made.
Further, be provided on the upper cover plate the first apocenosis passage being connected to the sample accommodating chamber and with it is described
Second apocenosis passage of interlayer cavity connection is provided on the upper cover plate and/or lower cover and is connected to the sample accommodating chamber
First liquor charging channel is provided with the second liquor charging channel being connected to the interlayer cavity on the upper cover plate and/or lower cover.
Further, first liquor charging channel is connected with first high-pressure pump, second liquor charging channel and institute
The second high-pressure pump is stated to be connected；First apocenosis passage, the second apocenosis passage are connected with three-way pipe respectively, pacify on three-way pipe
Fill shut-off valve and pressure gauge.
Further, rubber pad, the internal layer cylinder body are provided between the outer cylinder block and the upper cover plate, lower cover
It is provided with rubber pad between the upper cover plate, lower cover.
Further, the upper cover plate, be both provided with bolt hole on lower cover, the bolt hole is distributed in the outer layer cylinder
The upper cover plate and lower cover are pressed on the outer cylinder block, internal layer cylinder by the outside of body, screw rod respectively across the bolt hole
The upper and lower ends of body.
Double pressure cover using the present invention, can be in the case where not increasing pressure shield cylinder body wall thickness, by interlayer
Flattening weighing apparatus reduces Cylinder block stress, improves the anti-pressure ability of pressure shield so that in the pressure shield using organic glass or tempered glass
Also the job requirement of larger diameter pressure shield is disclosure satisfy that, convenient for directly observing the situation inside pressure shield.
Description of the drawings
Fig. 1 is the overall schematic of the double pressure cover of the present invention；
Fig. 2 is the vertical view of upper cover plate；
Fig. 3 is the upward view of upper cover plate；
Fig. 4 is the A-A ' sectional views in Fig. 2；
Fig. 5 is the B-B ' sectional views in Fig. 2；
Fig. 6 is the position view of internal layer cylinder body and outer cylinder block；
Fig. 7 is the schematic diagram of rubber pad.
In figure：Internal layer cylinder body 1, outer cylinder block 2, upper cover plate 3, lower cover 4, sample accommodating chamber 5, interlayer cavity 6, rubber pad 7,
Rubber pad slot 8, the first high-pressure pump 9, the second high-pressure pump 10, three-way pipe 11, shut-off valve 12, pressure gauge 13, screw rod 14, bolt hole
15, gasket 16, hex bolts 17, the first apocenosis passage 31, the second apocenosis passage 32, the first liquor charging channel 41, the second liquor charging are logical
Road 42.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1-7, a kind of double pressure cover includes mainly internal layer cylinder body 1, outer cylinder block 2, upper cover plate 3 and lower cover
4, internal layer cylinder body 1 and outer cylinder block 2 are all made of transparent material and are made, and the internal diameter of outer cylinder block 2 is bigger than the outer diameter of internal layer cylinder body 1
4cm, the upper cover plate 3, lower cover 4 and internal layer cylinder body 1 are formed together is used for sample accommodating chamber 5, the upper cover plate 3, lower cover
4, internal layer cylinder body 1 and outer cylinder block 2 form interlayer cavity 6 together；It is disposed on upper cover plate 3 and is connected to the sample accommodating chamber 5
First apocenosis passage 31 and the second apocenosis passage 32 being connected to the interlayer cavity 6, are disposed on lower cover and the sample holds
First liquor charging channel 41 of chamber 5 of receiving connection and the second liquor charging channel 42 being connected to the interlayer cavity 6.Rubber for hermetic seal
Rubber cushion 7 is placed in the rubber pad slot 8 of upper cover plate 3 and lower cover 4, and the permeable hole of the rubber pad 7 on upper cover plate 3 is directed at second row
The permeable hole in liquid channel 32, the rubber pad 7 on lower cover 4 is directed at the second liquor charging channel 42；First liquor charging logical 41 and first is high
Press pump 9 is connected, and the second liquor charging channel 42 is connected with the second high-pressure pump 10；First apocenosis passage 31, the second apocenosis passage 32
It is connected respectively with three-way pipe 11, shut-off valve 12 and pressure gauge 13 is installed on three-way pipe 11.
It should be noted that：It is illustrated in Fig. 1,7：Rubber pad 7 between internal layer cylinder body 1 and lower cover 4 and outer cylinder block 2
Rubber pad 7 between lower cover 4 is the same rubber pad, but different rubber can be used in internal layer cylinder body 1 and outer cylinder block 2
Pad, i.e. rubber pad are not must be across the end of internal layer cylinder body 1 and outer cylinder block 2, as long as rubber pad can play sealing and stop
The effect of water；In addition, the first liquor charging channel 41 and the second liquor charging channel 42 can also be arranged on upper cover plate 3.
The present invention application method be：The bolt hole 15 that screw rod 14 is passed through to lower cover 4 from bottom to top, in lower cover 4
Rubber pad is set in rubber pad slot 8, internal layer cylinder body 1 and outer cylinder block 2 are placed on rubber pad 7, the permeable hole on rubber pad 7
Between inside and outside layer cylinder body, sample is placed in internal layer cylinder body 1；Upper cover plate 3 is installed again, in upper cover plate 3 and internal layer cylinder body
1, rubber pad 7 between outer cylinder block 2 is set, screw rod 14 is passed through to the bolt hole 1 of upper cover plate 3, with gasket 16 and hex bolts 17
Fastening；First liquor charging channel 41 is connected to the first high-pressure pump 9, the second liquor charging channel 42 is connected to the second high-pressure pump 10, and first
Apocenosis passage 31, the second apocenosis passage 32 are connected to three-way pipe 11 respectively, and shut-off valve 12 and pressure gauge are installed on three-way pipe 11
13.After installation is complete, first start the second high-pressure pump 10, the water filling into interlayer cavity 6, when the shut-off valve 12 being connected to interlayer cavity 6 has
When water flows out, shut-off valve 12 is closed, the reading of pressure gauge 13 is measured, when pressure reaches design pressure in interlayer cavity 6, closes the
Two high-pressure pumps 10 simultaneously maintain pressure；Then start the first high-pressure pump 9, the water filling pressure into sample accommodating chamber 5, until reaching design
When pressure, closes the first high-pressure pump 9 and maintain pressure.By taking the design pressure 2MPa of sample accommodating chamber 5 as an example, when in interlayer cavity 6
It when reaching 1MPa, closes the second high-pressure pump 10 and maintains pressure, continue to apply hydraulic pressure to 5 internal layer of sample accommodating chamber, until reaching
When 2MPa, the first high-pressure pump 9 is closed, outer cylinder block 2 is by outside 1MPa pressure this moment, and internal layer cylinder body 1 is by outside
1MPa pressure, thus will be on the 2MPa pressure dissipations of sample accommodating chamber 5 to internal layer cylinder body 1, outer cylinder block 2.In this way, in internal layer cylinder
The pressure that body 1 or outer cylinder block 2 are subject at any time is all not more than 2MPa, and 2MPa can be maintained in sample accommodating chamber 5
Pressure.
It should be noted that：Screw rod 14 is used in the present embodiment to clamp upper cover plate 3 and lower cover 4, but can also
The above, the lower lid is clamped using other means, such as：Upper cover plate 3 and lower cover 4 is pushed to move toward one another using pushing mechanism, it is real
The sealing of existing the above, the lower lid and inside and outside layer cylinder body.
The embodiment of the present invention is described with above attached drawing, in the absence of conflict, the reality in the present invention
The feature applied in example and embodiment can be combined with each other.For sake of convenience, the "upper" that above occurs, "lower" printed words, only indicate
With the upper and lower of attached drawing itself to consistent, restriction effect is not played to structure.The invention is not limited in above-mentioned specific implementations
Mode, the above mentioned embodiment is only schematical, rather than limitation, those skilled in the art are at this
Under the enlightenment of invention, without breaking away from the scope protected by the purposes and claims of the present invention, many forms can be also made,
Within these are all belonged to the scope of protection of the present invention.
Claims (7)
1. a kind of double pressure cover, which is characterized in that including：Upper cover plate (3), lower cover (4), outer cylinder block (2) and be located at institute
State the internal layer cylinder body (1) in outer cylinder block, the upper end of the outer cylinder block (2) and internal layer cylinder body (1) with the upper cover plate (3)
It is tightly connected, the lower end of the outer cylinder block (2) and internal layer cylinder body (1) is tightly connected with the lower cover (4), the upper cover
Plate (3), lower cover (4) and internal layer cylinder body (1) are formed together is used for sample accommodating chamber (5), the upper cover plate (3), lower cover
(4), internal layer cylinder body (1) and outer cylinder block (2) form interlayer cavity (6) together, and the sample accommodating chamber (5) passes through the upper cover plate
(3) and/or lower cover (4) is connected with the first high-pressure pump (9) for controlling the interior pressure of the sample accommodating chamber (5), the folder
Layer chamber (6) is connected with high for controlling the interior pressure second of the interlayer cavity (6) by the upper cover plate (3) and/or lower cover (4)
Press pump (10), the pressure in the sample accommodating chamber (5) are more than the pressure in the interlayer cavity (6).
2. a kind of double pressure cover according to claim 1, which is characterized in that the outer cylinder block (2) and internal layer cylinder body
(1) transparent material is all made of to be made.
3. a kind of double pressure cover according to claim 2, which is characterized in that the outer cylinder block (2) and internal layer cylinder body
(1) it is all made of tempered glass or organic glass is made.
4. a kind of double pressure cover according to claim 1, which is characterized in that be provided on the upper cover plate (4) and institute
The second apocenosis passage (32) stated the first apocenosis passage (31) of sample accommodating chamber (5) connection and be connected to the interlayer cavity (6),
The first liquor charging channel (41) being connected to the sample accommodating chamber (5) is provided on the upper cover plate (3) and/or lower cover (4),
The second liquor charging channel (42) being connected to the interlayer cavity (6) is provided on the upper cover plate (3) and/or lower cover (4).
5. a kind of double pressure cover according to claim 4, which is characterized in that first liquor charging channel (41) with it is described
First high-pressure pump (9) is connected, and second liquor charging channel (42) is connected with second high-pressure pump (10)；The first row
Liquid channel (31), the second apocenosis passage (32) are connected with three-way pipe (11) respectively, and shut-off valve (12) is installed on three-way pipe (11)
With pressure gauge (13).
6. a kind of double pressure cover according to claim 1, which is characterized in that the outer cylinder block (2) and the upper cover
Be provided with rubber pad (7) between plate (3), lower cover (4), the internal layer cylinder body (1) and the upper cover plate (3), lower cover (4) it
Between be provided with rubber pad (7).
7. a kind of double pressure cover according to claim 1, which is characterized in that on the upper cover plate (3), lower cover (4)
It is both provided with bolt hole (15), the bolt hole (15) is distributed in the outside of the outer cylinder block (2), and screw rod (14) passes through described
Bolt hole (15) by the upper cover plate (3) and lower cover (4) be pressed on respectively the outer cylinder block (2), internal layer cylinder body (1) it is upper
Lower both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658463.5A CN108562484A (en) | 2018-06-25 | 2018-06-25 | A kind of double pressure cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658463.5A CN108562484A (en) | 2018-06-25 | 2018-06-25 | A kind of double pressure cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108562484A true CN108562484A (en) | 2018-09-21 |
Family
ID=63554679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810658463.5A Pending CN108562484A (en) | 2018-06-25 | 2018-06-25 | A kind of double pressure cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108562484A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233900A (en) * | 1994-02-22 | 1995-09-05 | Babcock Hitachi Kk | High temperature high pressure gas piping |
| CN101592574A (en) * | 2009-06-30 | 2009-12-02 | 三峡大学 | Triaxial creep tester of unsaturated soil |
| KR20140131182A (en) * | 2013-05-03 | 2014-11-12 | 대우조선해양 주식회사 | Pressure Vessel and Pressure Vessel for Testing BOP |
| KR20150040518A (en) * | 2013-10-07 | 2015-04-15 | 대우조선해양 주식회사 | Pressure Vessel for Testing BOP |
| CN104749039A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Thin shell nested pressure test cabin device |
| CN105486528A (en) * | 2015-12-23 | 2016-04-13 | 浙江大学 | Deep sea high pressure environment simulation device capable of reducing requirement for wall thickness and material strength |
| CN106769466A (en) * | 2016-12-26 | 2017-05-31 | 立方通达实业（天津）有限公司 | A kind of temperature control triaxial test system |
| CN107782641A (en) * | 2017-11-24 | 2018-03-09 | 中国矿业大学 | A kind of loose media osmotic grouting simulation test device |
| CN108007787A (en) * | 2017-12-29 | 2018-05-08 | 中国科学院武汉岩土力学研究所 | Balancing gate pit and sound state triaxial test system |
| CN108007786A (en) * | 2017-12-29 | 2018-05-08 | 成都东华卓越科技有限公司 | A kind of double pressure room and ectosome become measuring system |
| CN208488321U (en) * | 2018-06-25 | 2019-02-12 | 中国电建集团中南勘测设计研究院有限公司 | A kind of double pressure cover |
-
2018
- 2018-06-25 CN CN201810658463.5A patent/CN108562484A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233900A (en) * | 1994-02-22 | 1995-09-05 | Babcock Hitachi Kk | High temperature high pressure gas piping |
| CN101592574A (en) * | 2009-06-30 | 2009-12-02 | 三峡大学 | Triaxial creep tester of unsaturated soil |
| KR20140131182A (en) * | 2013-05-03 | 2014-11-12 | 대우조선해양 주식회사 | Pressure Vessel and Pressure Vessel for Testing BOP |
| KR20150040518A (en) * | 2013-10-07 | 2015-04-15 | 대우조선해양 주식회사 | Pressure Vessel for Testing BOP |
| CN104749039A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Thin shell nested pressure test cabin device |
| CN105486528A (en) * | 2015-12-23 | 2016-04-13 | 浙江大学 | Deep sea high pressure environment simulation device capable of reducing requirement for wall thickness and material strength |
| CN106769466A (en) * | 2016-12-26 | 2017-05-31 | 立方通达实业（天津）有限公司 | A kind of temperature control triaxial test system |
| CN107782641A (en) * | 2017-11-24 | 2018-03-09 | 中国矿业大学 | A kind of loose media osmotic grouting simulation test device |
| CN108007787A (en) * | 2017-12-29 | 2018-05-08 | 中国科学院武汉岩土力学研究所 | Balancing gate pit and sound state triaxial test system |
| CN108007786A (en) * | 2017-12-29 | 2018-05-08 | 成都东华卓越科技有限公司 | A kind of double pressure room and ectosome become measuring system |
| CN208488321U (en) * | 2018-06-25 | 2019-02-12 | 中国电建集团中南勘测设计研究院有限公司 | A kind of double pressure cover |
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