CN206132512U - Extension measuring device suitable for under high temperature and high pressure environment - Google Patents
Extension measuring device suitable for under high temperature and high pressure environment Download PDFInfo
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- CN206132512U CN206132512U CN201621179949.3U CN201621179949U CN206132512U CN 206132512 U CN206132512 U CN 206132512U CN 201621179949 U CN201621179949 U CN 201621179949U CN 206132512 U CN206132512 U CN 206132512U
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Abstract
The utility model discloses an extension measuring device suitable for under high temperature and high pressure environment, including two sets of fixation clamps, two sets of pole settings, two sets of cooling device and two sets of LVDT displacement sensor, the sample is located the internal portion of cauldron, the one end of two sets of fixation clamps is fixed respectively on two upper and lower bosss of sample, the other end of two sets of fixation clamps is fixed with two sets of pole settings respectively, two sets of cooling device install on the kettle cover, two sets of LVDT displacement sensor install respectively inside two sets of cooling device, two sets of inside response magnet of LVDT displacement sensor are connected respectively with from the internal two sets of pole settings stretched of cauldron. The utility model discloses a loading device aroused the error because of the load bar produces deformation during fixation clamp, pole setting and LVDT displacement sensor had avoided traditional scheme to protect LVDT displacement sensor through cooling device, thereby improve measurement accuracy.
Description
Technical field
This utility model is related to detection field, more particularly to a kind of extension measurement suitable under high temperature and high pressure environment is filled
Put.
Background technology
Stress corrosion (cracking) test equipment is generally used for the performance test of material under corrosive medium environment, is simulation material in reality
Performance under the applying working condition of border, needs to be equipped with high temperature and pressure experiment kettle on testing equipment.During test, metal material sample is installed
In closed experiment kettle, it is connected with the charger of outside by a load bar.And due to testing the environmental condition in kettle
Harshness, the sensor of general measure elongation can not be used in it.
For the measurement of the sample elongation in high temperature and pressure experiment kettle, direct measurement scheme is currently there are no, great majority are adopted
With the method for indirect measurement.The charger of ordinary test equipment outside experiment kettle, deeply test kettle and be connected with sample by load bar,
During loading, the elongation of sample and the displacement near-synchronous of load bar.Displacement transducer is installed on load bar outside experiment kettle, is kept away
Exempt from contact high temperature and high pressure environment, the displacement of load bar can have been measured, be approximately equal to sample elongation.
Indirect measurement method is the imagination of the elongation Complete Synchronization based on load bar displacement and sample, and in fact, loading
Can there is certain gap in the annexation between bar and sample, this is especially apparent in fatigue test.On the other hand, sample adds
During load, produce strain elongation is not only sample, and the fixture being connected with sample and load bar can all produce deformation, survey indirectly
Amount method also includes the elongation of this part, causes final measurement simultaneously inaccurate.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of suitable for stretching under high temperature and high pressure environment
Long measurement apparatus.
The technical scheme that this utility model is adopted is：
A kind of extension measurement device suitable under high temperature and high pressure environment, including two groups of fixation clamps, two groups of vertical rods, two sets it is cold
But device and two sets of LVDT displacement transducers, sample is located inside kettle, and one end of fixation clamp is separately fixed at examination described in two groups
On two boss up and down of sample, the other end of fixation clamp described in two groups is fixed respectively with vertical rod described in two groups, two sets of coolings
Device is arranged on kettle cover, and two sets of LVDT displacement transducers are separately mounted to inside two sets of chillers, two sets of institutes
State the induced magnet inside LVDT displacement transducers to be connected with vertical rod described in two groups stretched from the kettle respectively.
It is described as a kind of improvement of the extension measurement device suitable under high temperature and high pressure environment described in the utility model
Chiller includes water jacket body and water jacket shell, and the LVDT displacement transducers are arranged on portion in the water jacket body, the water jacket
Body is threadedly coupled and by metal end face seal with the kettle cover, and the outer surface of the water jacket body is provided with helicla flute, the water
Body is coaxially set in the inside of the water jacket shell, and described spiral fluted one end is provided with cooling water inlet, and the other end is provided with cold
But water out.
It is described as a kind of improvement of the extension measurement device suitable under high temperature and high pressure environment described in the utility model
Gap between water jacket body and the water jacket shell is sealed by sealing ring.
It is described as a kind of improvement of the extension measurement device suitable under high temperature and high pressure environment described in the utility model
Water jacket shell is fixed on the water jacket body by locking nut.
It is described as a kind of improvement of the extension measurement device suitable under high temperature and high pressure environment described in the utility model
Fixation clamp is opposite opened, and its one end is held tightly on the boss of sample by screw, and the other end is clamped the vertical rod by screw.
In order to solve above-mentioned technical problem, this utility model additionally provides a kind of elongation suitable under high temperature and high pressure environment
Measuring method.
A kind of extension measurement method suitable under high temperature and high pressure environment, using extension measurement device described above, institute
Stating extension measurement method includes：
The chiller is cooled down to the LVDT displacement transducers；
Charger is opposite to the sample inside kettle and is loaded, and makes sample produce strain elongation；
The LVDT positions that what sample stretching was produced be displaced through the fixation clamp and the vertical rod is transferred to outside kettle
On the induced magnet of displacement sensor；
The LVDT displacement transducers are corresponding so as to obtain according to the displacement output voltage signal of the induced magnet
The displacement of the vertical rod；
The displacement that vertical rod described in two groups is produced is obtained the tensile elongation of sample Jing after being added or subtract each other.
It is described as a kind of improvement of the extension measurement method suitable under high temperature and high pressure environment described in the utility model
Chiller is cooled down to the LVDT displacement transducers, is specifically included：Cooling water continues to be passed through from the cooling water inlet
In the helicla flute, and flow out from the coolant outlet.
Advantageous Effects of the present utility model are：
In the middle of prior art, there is certain gap in the annexation between load bar and sample, and during sample loading, with
The fixture and load bar of sample connection can produce deformation, particularly evident in fatigue experiment, cause final measurement inaccurate,
This utility model is positioned at the measurement point of sensor on sample, excludes other interference factors, greatly improves certainty of measurement；
This measurement apparatus and method are simple, economical and practical, and being installed on for LVDT displacement transducers safeguards very convenient, solution
Determined in High Temperature High Pressure water environment cannot the elongation of direct measurement sample difficult point；
Helicla flute is provided with water jacket body, is on the one hand easy to flow of cooling water, on the other hand increase the area of heat exchange,
Simple structure, cooling-down effect substantially, and does not affect to test the hot environment in kettle.
Certainly, implement arbitrary product of the present utility model to it is not absolutely required to while reaching all the above advantage.
Description of the drawings
Fig. 1 is the front view of extension measurement device described in the utility model；
Fig. 2 is the top view of fixation clamp described in the utility model.
In figure, 1- kettlies；2- samples；3- fixation clamps；4- vertical rods；5- kettle covers；6- water jacket bodies；7- sealing rings；Outside 8- water jackets
Shell；9- induced magnets；10- sealing rings；11- locking nuts；12- sealing rings；13-LVDT displacement transducers.
Specific embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.
Such as Fig. 1, a kind of extension measurement device suitable under high temperature and high pressure environment, including two groups of fixation clamps, 3, two groups of vertical rods
4th, two sets of chillers and two sets of LVDT displacement transducers 13, sample 2 is located inside kettle 1, one end difference of two groups of fixation clamps 3
It is fixed on two boss up and down of sample 2, the other end of two groups of fixation clamps 3 is fixed respectively with two groups of vertical rods 4, two sets of cooling dresses
Put on kettle cover 5, two sets of LVDT displacement transducers 13 are separately mounted to inside two sets of chillers, two sets of LVDT displacements are passed
Induced magnet 9 inside sensor 13 is connected respectively with the two groups of vertical rods 4 stretched from kettle 1.LVDT displacement transducers 13 are resistance to
High pressure, but the high temperature being unable in tolerance test kettle, therefore need that a chiller is installed on kettle cover 5.LVDT displacement transducers
13 I＆M is very convenient.
In another embodiment of the present utility model, chiller includes water jacket body 6 and water jacket shell 8, and LVDT displacements are passed
Sensor 13 is arranged on inside water jacket body 6, and water jacket body 6 is threadedly coupled and by metal end face seal with kettle cover 5, water jacket body 6
Outer surface is provided with helicla flute, and water jacket body 6 is coaxially set in the inside of water jacket shell 8, and spiral fluted one end is provided with cooling water inlet,
The other end is provided with coolant outlet.During work, cooling water is continually fed into from A mouths, cooling water flows through the helicla flute on water jacket body, and
Flow out from B mouths, make water jacket body 6 keep low temperature state, water jacket body 6 passes through heat exchange, the height around LVDT displacement transducers 13
Warm water is reduced to acceptable temperature, and LVDT displacement transducers 13 just can normal work.Because water jacket body 6 is used to pass through vertical rod 4
Passage it is very tiny so that the water temperature being lowered around LVDT displacement transducers 13 is difficult to have influence on inside kettle 1, can make reality
Test in kettle water temperature keep uniformly with it is constant.
Chiller includes water jacket body 6 and water jacket shell 8, and water jacket body 6 is provided with helicla flute, is on the one hand easy to cool down current
It is dynamic, the area of heat exchange is on the other hand increased, simple structure, cooling-down effect substantially, and does not affect to test the high temperature ring in kettle
Border.
In another embodiment of the present utility model, the gap between water jacket body 6 and water jacket shell 8 passes through the He of sealing ring 7
Sealing ring 10 is sealed.Sealing ring 7 and sealing ring 10 can effectively prevent cooling water from oozing out from gap, so as to ensure cooling effect.
In another embodiment of the present utility model, water jacket shell 8 is fixed on water jacket body 6 by locking nut 11.
In another embodiment of the present utility model, as shown in Fig. 2 fixation clamp 3 is opposite opened, its one end passes through screw b
Hold tightly on the boss of sample 2 with screw c, the other end is clamped vertical rod 4 by screw a.
A kind of extension measurement method suitable under high temperature and high pressure environment, using above-mentioned extension measurement device, extension measurement
Method includes：
Chiller is cooled down to LVDT displacement transducers 13；
Charger is opposite to the sample 2 inside kettle 1 and is loaded, and makes sample 2 produce strain elongation；
The LVDT displacement transducers that what the stretching of sample 2 was produced be displaced through fixation clamp 3 and vertical rod 4 is transferred to outside kettle 1
On 13 induced magnet 9；
LVDT displacement transducers 13 according to the displacement output voltage signal of induced magnet 9, so as to obtain corresponding vertical rod 4
Displacement；
The displacement of two groups of generations of vertical rod 4 is obtained the tensile elongation of sample 2 Jing after being added or subtract each other.
In another embodiment of the present utility model, chiller is cooled down to LVDT displacement transducers 13, concrete bag
Include：Cooling water continues to be passed through in helicla flute from cooling water inlet, and flows out from coolant outlet.
This utility model transmits the stretching displacement of sample 2 by fixation clamp 3 and vertical rod 4, it is to avoid produced using load bar
The technological deficiency of deformation, and LVDT displacement transducers 13 are protected by chiller, directly by the measurement point of sensor
It is positioned on sample 2, greatly improves certainty of measurement.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any those familiar with the art can readily occur in the technical scope that this utility model is disclosed
Change or replacement, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (5)
1. a kind of extension measurement device suitable under high temperature and high pressure environment, it is characterised in that：Stand including two groups of fixation clamps, two groups
Bar, two sets of chillers and two sets of LVDT displacement transducers, sample is located inside kettle, one end difference of fixation clamp described in two groups
It is fixed on two boss up and down of sample, the other end of fixation clamp described in two groups is fixed respectively with vertical rod described in two groups, two sets
The chiller is arranged on kettle cover, and two sets of LVDT displacement transducers are separately mounted in two sets of chillers
Portion, the induced magnet inside two sets of LVDT displacement transducers respectively with vertical rod described in two groups stretched from the kettle
Correspondence connection.
2. a kind of extension measurement device suitable under high temperature and high pressure environment according to claim 1, it is characterised in that：Institute
Chiller is stated including water jacket body and water jacket shell, the LVDT displacement transducers are arranged on portion in the water jacket body, the water
Body is threadedly coupled with the kettle cover and by metal end face seal, the outer surface of the water jacket body is provided with helicla flute, described
Water jacket body is coaxially set in the inside of the water jacket shell, and described spiral fluted one end is provided with cooling water inlet, and the other end is provided with
Coolant outlet.
3. a kind of extension measurement device suitable under high temperature and high pressure environment according to claim 2, it is characterised in that：Institute
The gap stated between water jacket body and the water jacket shell is sealed by sealing ring.
4. a kind of extension measurement device suitable under high temperature and high pressure environment according to claim 2, it is characterised in that：Institute
State water jacket shell to be fixed on the water jacket body by locking nut.
5. a kind of extension measurement device suitable under high temperature and high pressure environment according to claim 1, it is characterised in that：Institute
It is opposite opened to state fixation clamp, and its one end is held tightly on the boss of sample by screw, and the other end is pressed from both sides the vertical rod by screw
Tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179949.3U CN206132512U (en) | 2016-10-27 | 2016-10-27 | Extension measuring device suitable for under high temperature and high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179949.3U CN206132512U (en) | 2016-10-27 | 2016-10-27 | Extension measuring device suitable for under high temperature and high pressure environment |
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| Publication Number | Publication Date |
|---|---|
| CN206132512U true CN206132512U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179949.3U Active CN206132512U (en) | 2016-10-27 | 2016-10-27 | Extension measuring device suitable for under high temperature and high pressure environment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644707A (en) * | 2016-10-27 | 2017-05-10 | 上海凯尔孚应力腐蚀试验设备有限公司 | Extension measuring device and method applicable to high-temperature and high-pressure environments |
| CN107449676A (en) * | 2017-08-17 | 2017-12-08 | 中广核研究院有限公司 | Crackle aperture displacement measurement apparatus |
| CN109012495A (en) * | 2018-09-20 | 2018-12-18 | 西安力创材料检测技术有限公司 | The device of dynamic monitoring deformation index under a kind of high-temperature and high-pressure conditions in reaction kettle |
| CN116660309A (en) * | 2023-07-31 | 2023-08-29 | 德阳市重装检测有限责任公司 | Device and method for measuring thermal-cold deformation performance of material in real time |
-
2016
- 2016-10-27 CN CN201621179949.3U patent/CN206132512U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644707A (en) * | 2016-10-27 | 2017-05-10 | 上海凯尔孚应力腐蚀试验设备有限公司 | Extension measuring device and method applicable to high-temperature and high-pressure environments |
| CN107449676A (en) * | 2017-08-17 | 2017-12-08 | 中广核研究院有限公司 | Crackle aperture displacement measurement apparatus |
| CN107449676B (en) * | 2017-08-17 | 2024-03-22 | 中广核研究院有限公司 | Crack opening displacement measuring device |
| CN109012495A (en) * | 2018-09-20 | 2018-12-18 | 西安力创材料检测技术有限公司 | The device of dynamic monitoring deformation index under a kind of high-temperature and high-pressure conditions in reaction kettle |
| CN109012495B (en) * | 2018-09-20 | 2024-03-15 | 西安力创材料检测技术有限公司 | Device for dynamically monitoring deformation index under high-temperature and high-pressure condition in reaction kettle |
| CN116660309A (en) * | 2023-07-31 | 2023-08-29 | 德阳市重装检测有限责任公司 | Device and method for measuring thermal-cold deformation performance of material in real time |
| CN116660309B (en) * | 2023-07-31 | 2023-10-03 | 德阳市重装检测有限责任公司 | Method for measuring thermal-cold deformation performance of material in real time |
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