CN109724763B - Reference setting method for testing flattened type whip-proof part and implementation device thereof - Google Patents
Reference setting method for testing flattened type whip-proof part and implementation device thereof Download PDFInfo
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- CN109724763B CN109724763B CN201811640031.8A CN201811640031A CN109724763B CN 109724763 B CN109724763 B CN 109724763B CN 201811640031 A CN201811640031 A CN 201811640031A CN 109724763 B CN109724763 B CN 109724763B
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Abstract
The invention aims to disclose a benchmark setting method for a test of a flattening type whipping prevention piece and an implementation device thereof, wherein the benchmark setting method comprises an impact oil cylinder, an energy accumulator, a simulation high-energy pipeline impact head, a flattening type whipping prevention piece and a mounting base; compared with the prior art, the equal-height blocks are arranged on the two sides of the flattening type whipping prevention piece before testing, so that local plastic deformation of the flattening type whipping prevention piece caused by static load pressure of a simulation high-energy pipeline impact head is effectively avoided, and the correctness of the testing result of the flattening type whipping prevention piece can be fully ensured through the arrangement of a displacement zero reference, the zero reference arrangement of the force sensor and the reference arrangement of the holding force.
Description
Technical Field
The invention relates to a reference setting method and an implementation device thereof, in particular to a reference setting method for a test of a flattened anti-whipping piece and an implementation device thereof.
Background
The flattening type whipping prevention part is a tubular structure whipping prevention part, and when the whipping of the high-energy pipeline occurs, the flattening type whipping prevention part generates plastic deformation in the flattening process to absorb the whipping energy of the high-energy pipeline.
The setting of the displacement zero reference in the test process of the flattening type whipping-proof piece determines the accuracy of the impact height of the impact head, namely the accuracy of impact energy on one hand, and also relates to the accuracy of measurement of the plastic deformation formed by the flattening type whipping-proof piece on the other hand; the zero reference setting of the force sensor and the reference setting of the holding force are also related to the correctness of the test of the flattening type anti-whipping piece.
Therefore, a method for setting a reference for testing a crush-type whip shield and an apparatus for implementing the same are particularly needed to solve the above existing problems.
Disclosure of Invention
The invention aims to provide a reference setting method for testing a flattened whip preventing piece and an implementation device thereof, aiming at the defects of the prior art, the method can fully ensure the correctness of the test result of the flattened whip preventing piece, and has the advantages of reasonable method, simple structure and wide application prospect.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the invention provides a benchmark setting device for testing a flattened anti-whipping part, which is characterized by comprising an impact oil cylinder, an energy accumulator, a simulation high-energy pipeline impact head, a flattened anti-whipping part and a mounting base; the interior of the impact oil cylinder is divided into an upper working cavity and a lower working cavity by a piston, the upper working cavity of the impact oil cylinder is communicated with the working cavity of the energy accumulator by a pipeline, the lower working cavity of the impact oil cylinder is communicated with a hydraulic system, the lower end of a piston rod of the impact oil cylinder is connected with the upper end of the impact head of the simulation high-energy pipeline through a transition flange, the flattening type whipping prevention piece is arranged at the lower end of the impact head of the simulation high-energy pipeline, the transition flange is respectively connected with a displacement sensor and a speed sensor through a measuring rod, the lower end of the flattening type whipping prevention piece is arranged on the mounting base through at least one force sensor, the two sides of the flattening type whipping prevention piece are provided with a left equal-height block and a right equal-height block, and the height of the left equal-height block and the height of the right equal-height block are equal to the original height of the flattening type whipping prevention piece.
In one embodiment of the invention, the energy accumulator is mounted on a stand column of a frame of the high-energy pipeline whipping simulation test platform, and a working cavity is arranged in the energy accumulator.
In one embodiment of the invention, the impact oil cylinder is mounted on the upper surface of the upper platform of the rack of the high-energy pipeline whipping simulation test platform through a mounting flange, and a piston rod of the impact oil cylinder penetrates through the upper platform of the rack and extends out of the lower surface of the upper platform of the rack.
In one embodiment of the invention, the displacement sensor penetrates through an upper platform of a rack of the high-energy pipeline whipping simulation test platform and is installed on the upper platform of the rack, and a measuring rod of the displacement sensor is connected to the transition flange through a thread at the lower end of the measuring rod.
In one embodiment of the invention, the speed sensor penetrates through an upper platform of a rack of the high-energy pipeline whipping simulation test platform and is installed on the upper platform of the rack, and a measuring rod of the speed sensor is connected to the transition flange through a thread at the lower end of the measuring rod.
In one embodiment of the invention, the flattened whip preventing member, the left equal-height block and the right equal-height block are mounted on the upper surface of a whip preventing member mounting plate, the lower end of the force sensor is reliably mounted on the mounting base, and the upper end of the force sensor is reliably connected with the whip preventing member mounting plate.
In an embodiment of the invention, the left equal-height block and the right equal-height block are rectangular bodies or section steels such as square tubes, channel steels, i-shaped steels and the like.
In a second aspect, the invention provides a reference setting method for a test of a flattened type whipping prevention piece, which is characterized by comprising the following steps:
(1) setting of left equal-height blocks and right equal-height blocks:
lifting an impact oil cylinder to enable an impact head of the simulated high-energy pipeline to be separated from the upper surface of the whipping prevention piece mounting plate, reliably mounting the flattened whipping prevention piece on the upper surface of the whipping prevention piece mounting plate, placing a left equal-height block and a right equal-height block on the upper surface of the whipping prevention piece mounting plate and on the left side and the right side of the flattened whipping prevention piece, wherein the height of the left equal-height block and the height of the right equal-height block are equal to the original height of the flattened whipping prevention piece;
(2) setting a zero reference of the displacement sensor:
descending the impact oil cylinder to enable the lower part of the impact head of the simulated high-energy pipeline to be in contact with and tightly attached to the upper surfaces of the left equal-height block and the right equal-height block, recording related data by the displacement sensor, and setting the position as a zero reference point of the displacement sensor;
(3) force sensor zero reference setup:
high-pressure oil is provided to a lower working cavity of the impact oil cylinder through a hydraulic system, the high-pressure oil acts on the lower end face of a piston of the impact oil cylinder to generate an upward acting force, the acting force formed by high-pressure nitrogen in the upper working cavity of the impact oil cylinder on the upper end face of the piston, the mass force and the related friction force of the piston, a piston rod, a transition flange and the impact head of the simulated high-energy pipeline are overcome, the impact oil cylinder is lifted slowly, the lower part of the impact head of the simulated high-energy pipeline is separated from a left equal-height block and a right equal-height block, and the force value of a force sensor is reset and used as the;
(4) force sensor retention force reference setting:
when the impact oil cylinder is in a descending state, the lower part of the impact head of the simulated high-energy pipeline is in contact with and closely attached to the upper surfaces of the left equal-height block and the right equal-height block, the force sensor records a test value in real time, high-pressure nitrogen is filled into the working cavity of the energy accumulator, the force value measured by the force sensor synchronously rises along with the rise of the working cavity of the energy accumulator, when the force value measured by the force sensor reaches a set holding force, the high-pressure nitrogen is stopped being filled, and the force value measured by the force sensor is stabilized at a set value of the holding force, namely the holding force reference of the force sensor.
Compared with the prior art, the reference setting method and the implementation device for the test of the flattened anti-whipping part have the advantages that the equal-height blocks are arranged on the two sides of the flattened anti-whipping part before the test, so that the local plastic deformation of the flattened anti-whipping part caused by the static load pressure of the impact head of a simulated high-energy pipeline is effectively avoided, and the correctness of the test result of the flattened anti-whipping part can be fully ensured through the setting of the displacement zero reference, the zero reference setting of the force sensor and the reference setting of the holding force.
The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.
Drawings
Fig. 1 is a schematic structural diagram of a reference setting device for testing a crush type whip stock according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Examples
As shown in figure 1, the benchmark setting device for the test of the flattening type swing-proof piece comprises an impact oil cylinder 1, an energy accumulator 2, a simulation high-energy pipeline impact head 7, a flattening type swing-proof piece 9 and a mounting base 13; the interior of an impact oil cylinder 1 is divided into an upper working cavity A and a lower working cavity B through a piston, the upper working cavity A of the impact oil cylinder 1 is communicated with a working cavity C of an energy accumulator 2 through a pipeline 3, the lower working cavity B of the impact oil cylinder 1 is communicated with a hydraulic system, the lower end of a piston rod of the impact oil cylinder 1 is connected with the upper end of a simulation high-energy pipeline impact head 7 through a transition flange 4, a flattening type whipping-proof piece 9 is arranged at the lower end of the simulation high-energy pipeline impact head 7, the transition flange 4 is respectively connected with a displacement sensor 5 and a speed sensor 6 through measuring rods, the lower end of the flattening type whipping-proof piece 9 is installed on an installation base 13 through at least one force sensor 12, a left equal-height block 10 and a right equal-height block 8 are arranged on two sides of the flattening type whipping-proof piece 9, and the height of the left equal-height block 10 and the height of the right.
In this embodiment, the energy accumulator 2 is installed on a stand column (not labeled in the figure) of the high-energy pipeline whipping simulation test platform, and a working chamber C is arranged in the energy accumulator 2.
In this embodiment, the impact cylinder 1 is installed on the upper surface of the upper platform of the rack of the high-energy pipeline whipping simulation test platform through an installation flange, and a piston rod of the impact cylinder 1 penetrates through the upper platform of the rack and extends out of the lower surface of the upper platform of the rack.
In this embodiment, the displacement sensor 5 penetrates through the upper platform of the rack of the high-energy pipeline whipping simulation test platform and is installed on the upper platform of the rack, and the measuring rod of the displacement sensor 5 is connected to the transition flange 4 through the thread at the lower end of the measuring rod.
The speed sensor 6 penetrates through an upper platform of a rack of the high-energy pipeline whipping simulation test platform and is installed on the upper platform of the rack, and a measuring rod of the speed sensor 6 is connected to the transition flange 4 through threads at the lower end of the measuring rod.
In this embodiment, the crush-type whip preventing member 9, the left equal-height block 10, and the right equal-height block 8 are mounted on an upper surface of a whip preventing member mounting plate 11, the lower end of the force sensor 12 is reliably mounted on the mounting base 13, and the upper end of the force sensor 12 is reliably connected to the whip preventing member mounting plate 11.
In the embodiment, the upper end of the impact head 7 of the simulated high-energy pipeline is reliably connected with the transition flange 4, and the lower part of the impact head is the impact head simulating the appearance of the high-energy pipeline.
In this embodiment, the left equal-height block 10 and the right equal-height block 8 are rectangular bodies or shaped steels such as square tubes, channel steels, i-shaped steels and the like.
The invention discloses a reference setting method for testing a flattened swing-proof part, which comprises the following steps:
(1) setting of left equal-height blocks and right equal-height blocks:
lifting the impact cylinder 1 to enable the impact head 7 of the simulated high-energy pipeline to be separated from the upper surface of the whipping prevention piece mounting plate 11, reliably mounting the flattened whipping prevention piece 9 on the upper surface of the whipping prevention piece mounting plate 11, placing the left equal-height block 10 and the right equal-height block 8 on the upper surface of the whipping prevention piece mounting plate 11 and on the left side and the right side of the flattened whipping prevention piece 9, wherein the height of the left equal-height block 10 and the height of the right equal-height block 8 are equal to the original height of the flattened whipping prevention piece 9;
(2) setting a zero reference of the displacement sensor:
descending the impact oil cylinder 1 to enable the lower part of the impact head 7 of the simulation high-energy pipeline to be in contact with and tightly attached to the upper surfaces of the left equal-height block 10 and the right equal-height block 8, recording related data by the displacement sensor 5, and setting the position as a zero reference point of the displacement sensor 5;
(3) force sensor zero reference setup:
high-pressure oil is provided for a lower working cavity B of the impact oil cylinder 1 through a hydraulic system, the high-pressure oil acts on the lower end face of a piston of the impact oil cylinder 1 to generate an upward acting force, the acting force formed by high-pressure nitrogen in an upper working cavity A of the impact oil cylinder 1 on the upper end face of the piston, the mass force and the related friction force of the piston, a piston rod, a transition flange 4 and the simulated high-energy pipeline impact head 7 are overcome, the impact oil cylinder 1 is lifted slowly, the lower part of the simulated high-energy pipeline impact head 7 is separated from a left equal-height block 10 and a right equal-height block 8, and the force value of the force sensor 12 is reset and serves as the zero reference of the force;
(4) force sensor retention force reference setting:
when the impact oil cylinder 1 is in a descending state, the lower part of the impact head 7 of the simulated high-energy pipeline is in contact with and closely attached to the upper surfaces of the left equal-height block 10 and the right equal-height block 8, the force sensor 12 records a test value in real time, high-pressure nitrogen is filled into the working cavity C of the energy accumulator 2, the force value measured by the force sensor 12 synchronously rises along with the rise of the working cavity C of the energy accumulator 2, when the force value measured by the force sensor 12 reaches a set holding force, the high-pressure nitrogen is stopped being filled, and the force value measured by the force sensor 12 is stabilized at a set value of the holding force, namely the reference of the holding force of the force sensor 12.
If the test of the squashed type whipping prevention piece 9 is needed, after the lower part of the simulation high-energy pipeline impact head 7 is separated from the upper surfaces of the left equal-height block 10 and the right equal-height block 8, the left equal-height block 10 and the right equal-height block 8 are immediately removed and are far away from the impact area of the high-energy pipeline impact head 7.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (8)
1. A benchmark setting device for testing a flattened type whipping prevention piece is characterized by comprising an impact oil cylinder, an energy accumulator, a simulation high-energy pipeline impact head, a flattened type whipping prevention piece and a mounting base; the interior of the impact oil cylinder is divided into an upper working cavity and a lower working cavity by a piston, the upper working cavity of the impact oil cylinder is communicated with the working cavity of the energy accumulator by a pipeline, the lower working cavity of the impact oil cylinder is communicated with a hydraulic system, the lower end of a piston rod of the impact oil cylinder is connected with the upper end of the impact head of the simulation high-energy pipeline through a transition flange, the flattening type whipping prevention piece is arranged at the lower end of the impact head of the simulation high-energy pipeline, the transition flange is respectively connected with a displacement sensor and a speed sensor through a measuring rod, the lower end of the flattening type whipping prevention piece is arranged on the mounting base through at least one force sensor, the two sides of the flattening type whipping prevention piece are provided with a left equal-height block and a right equal-height block, and the height of the left equal-height block and the height of the right equal-height block are equal to the original height of the flattening type whipping prevention piece.
2. The benchmark set device for the test of the squashed type flail-resistant member as claimed in claim 1, wherein the energy accumulator is installed on the stand column of the rack of the high-energy pipeline flail-resistant simulation test bench, and a working chamber is arranged in the energy accumulator.
3. The reference setting device for the test of the squashed type flail-resistant piece according to claim 1, wherein the impact cylinder is mounted on the upper surface of the upper platform of the frame of the high-energy pipeline flail simulation test bench through a mounting flange, and a piston rod of the impact cylinder penetrates through the upper platform of the frame and extends out from the lower surface of the upper platform of the frame.
4. The benchmarking apparatus of claim 1, wherein the displacement sensor extends through and is mounted on the upper platform of the frame of the high-energy pipeline whip simulation test bed, and the measuring rod of the displacement sensor is connected to the transition flange through a screw thread at the lower end of the measuring rod.
5. The benchmarking apparatus of claim 1, wherein the speed sensor extends through and is mounted on the upper platform of the frame of the high-energy pipeline whip simulation test bed, and the measuring rod of the speed sensor is connected to the transition flange through a screw thread at the lower end of the measuring rod.
6. The apparatus of claim 1, wherein the crush-type whip stock, the left contour block, and the right contour block are mounted on an upper surface of a whip stock mounting plate, the lower end of the force sensor is securely mounted on the mounting base, and the upper end of the force sensor is securely connected to the whip stock mounting plate.
7. The reference setting device for the test of the squashed whip preventing piece as claimed in claim 1, wherein the left equal-height block and the right equal-height block are rectangular bodies or shaped steels such as square tubes, channel steels and i-steels.
8. A reference setting method for testing a flattened type whipping-proof part is characterized by comprising the following steps:
(1) setting of left equal-height blocks and right equal-height blocks:
lifting an impact oil cylinder to enable an impact head of the simulated high-energy pipeline to be separated from the upper surface of the whipping prevention piece mounting plate, reliably mounting the flattened whipping prevention piece on the upper surface of the whipping prevention piece mounting plate, placing a left equal-height block and a right equal-height block on the upper surface of the whipping prevention piece mounting plate and on the left side and the right side of the flattened whipping prevention piece, wherein the height of the left equal-height block and the height of the right equal-height block are equal to the original height of the flattened whipping prevention piece;
(2) setting a zero reference of the displacement sensor:
descending the impact oil cylinder to enable the lower part of the impact head of the simulated high-energy pipeline to be in contact with and tightly attached to the upper surfaces of the left equal-height block and the right equal-height block, recording related data by the displacement sensor, and setting the position as a zero reference point of the displacement sensor;
(3) force sensor zero reference setup:
high-pressure oil is provided to a lower working cavity of the impact oil cylinder through a hydraulic system, the high-pressure oil acts on the lower end face of a piston of the impact oil cylinder to generate an upward acting force, the acting force formed by high-pressure nitrogen in the upper working cavity of the impact oil cylinder on the upper end face of the piston, the mass force and the related friction force of the piston, a piston rod, a transition flange and the impact head of the simulated high-energy pipeline are overcome, the impact oil cylinder is lifted slowly, the lower part of the impact head of the simulated high-energy pipeline is separated from a left equal-height block and a right equal-height block, and the force value of a force sensor is reset and used as the;
(4) force sensor retention force reference setting:
when the impact oil cylinder is in a descending state, the lower part of the impact head of the simulated high-energy pipeline is in contact with and closely attached to the upper surfaces of the left equal-height block and the right equal-height block, the force sensor records a test value in real time, high-pressure nitrogen is filled into the working cavity of the energy accumulator, the force value measured by the force sensor synchronously rises along with the rise of the working cavity of the energy accumulator, when the force value measured by the force sensor reaches a set holding force, the high-pressure nitrogen is stopped being filled, and the force value measured by the force sensor is stabilized at a set value of the holding force, namely the holding force reference of the force sensor.
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| CN201811640031.8A CN109724763B (en) | 2018-12-29 | 2018-12-29 | Reference setting method for testing flattened type whip-proof part and implementation device thereof |
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| CN109724763B true CN109724763B (en) | 2021-01-05 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161396A (en) * | 1988-12-15 | 1990-06-21 | Nippon Atom Ind Group Co Ltd | Device for preventing movement of ruptured piping |
| US7140259B2 (en) * | 2004-09-28 | 2006-11-28 | U. T. Battelle, Llc | Expanded plug method for developing circumferential mechanical properties of tubular materials |
| CN104034586B (en) * | 2014-06-12 | 2017-01-18 | 安徽新悦精密机械有限公司 | Stressed component measurement device |
| CN104614142B (en) * | 2015-01-30 | 2017-01-25 | 太原理工大学 | Circular pipe sideward swing impact device and test method thereof |
| CN104913894A (en) * | 2015-05-21 | 2015-09-16 | 清华大学 | Horizontal impact test method and horizontal impact test device for pipeline whip preventing device |
| CN104990814A (en) * | 2015-06-23 | 2015-10-21 | 哈尔滨工程大学 | Impact test device and test method for nuclear power station U-shaped pole type anti-flinging piece |
| KR101793218B1 (en) * | 2015-07-17 | 2017-11-02 | 최청열 | Test system for assessment of pressure waves and dynamic behaviors under rupture conditions of piping line |
| CN106596272B (en) * | 2016-12-15 | 2019-07-02 | 深圳中广核工程设计有限公司 | Nuclear power plant's high energy pipeline breaking whipping simulation system and method |
| CN107246999A (en) * | 2017-07-13 | 2017-10-13 | 苏州市建设工程质量检测中心有限公司 | Concrete static(al) compression modulus of elasticity automatic analyzer |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Patentee after: GELIN (CHANGZHOU) ELECTRICAL POWER MACHINE-BUILDING CO.,LTD. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Patentee before: GELIN (CHANGZHOU) ELECTRICAL POWER MACHINE-BUILDING CO.,LTD. |
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