KR20130074883A - Intensifier for impulse of ultra high pressure - Google Patents

Intensifier for impulse of ultra high pressure Download PDF

Info

Publication number
KR20130074883A
KR20130074883A KR1020110142960A KR20110142960A KR20130074883A KR 20130074883 A KR20130074883 A KR 20130074883A KR 1020110142960 A KR1020110142960 A KR 1020110142960A KR 20110142960 A KR20110142960 A KR 20110142960A KR 20130074883 A KR20130074883 A KR 20130074883A
Authority
KR
South Korea
Prior art keywords
high pressure
ultra
test object
hydraulic
port
Prior art date
Application number
KR1020110142960A
Other languages
Korean (ko)
Inventor
김형의
박종원
전태현
Original Assignee
한국기계연구원
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국기계연구원 filed Critical 한국기계연구원
Priority to KR1020110142960A priority Critical patent/KR20130074883A/en
Publication of KR20130074883A publication Critical patent/KR20130074883A/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/006—Crack, flaws, fracture or rupture
    • G01N2203/0062—Crack or flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/006—Crack, flaws, fracture or rupture
    • G01N2203/0067—Fracture or rupture

Landscapes

  • Physics & Mathematics (AREA)
  • General 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)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention relates to an ultra-high pressure impulse generating device, and more particularly, a high-pressure port and a low-pressure port having different diameters are formed inside the ultra-high pressure amplifier, and the piston rod is moved forward and backward in the ultra-high pressure amplifier, and thus, The piston rod is advanced by the hydraulic power supplied into the port, so that the pressure in the high pressure port is amplified to ultra high pressure. The hydraulic fluid in the high pressure port, which has been amplified at high pressure, is introduced into the contact surface between the test object and the fluid carrier. The present invention relates to an ultra-high pressure impulse generating device that allows a test object to be expanded by using hydraulic oil, which facilitates a life test such as cracking and crushing.

Description

Intensifier for Impulse of Ultra High Pressure

The present invention relates to an ultra-high pressure impulse generator for amplifying the pressure to ultra high pressure through the supplied hydraulic power, so that it can be used in the life test, such as cracking, crushing against the internal pressure of the test object.

Ultra-high pressure generators are mainly used for special systems in the industrial sector.

For example, pressure tests such as accumulators, hose assemblies, bursts, hydraulic pump housings, etc., and chemical shocks are often generated due to valve operation, inertia of hydraulic oil, and inherent characteristics of the equipment. Reliability and durability are very important in the trend of complicated circuits.

In order to check and maintain such durability for a short time, ISO and SAE standards regulate the performance and durability test by artificially applying impact pressure. Conventional ultra high pressure generator that meets this standard has been developed a tester using a high pressure pump or a directional valve. However, such a tester has a low frequency of use since failure occurs before 1 million tests at low pressure or does not satisfy the requirements of the tester in reproducing the test waveform.

Although ultra high pressure generators have been developed to reproduce high pressure shock pressures and test waveforms, the test can often be carried out only below 200 MPa.

Because, in order to proceed with the test in the range of ultra-high pressure, it is technically difficult to realize the ultra-high pressure of more than 200 MPa because leakage occurs in the material breakage and sealing (sealing) in the test equipment. In addition, there is a problem that the case of component breakage in the ultra-high pressure generator due to the impact of the system can increase.

The present invention has been made to solve the above problems, and an object of the present invention is to install a low pressure port and a pressure resistant port and a piston rod capable of forward / reverse movement inside the cylinder, so that the flow rate of the hydraulic power supplied It is possible to amplify the pressure of the low pressure port to ultra high pressure by adjusting the hydraulic power while adjusting the hydraulic fluid into the inner circumference of the test object in which the fluid carrier is installed. It is to provide an ultra-high pressure impulse generating device that can be expanded by the test object, so that the life test, such as cracking, fracture, etc. to the internal pressure can be performed.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems, the ultra-high pressure amplifier 10 is amplified internal pressure by the supplied hydraulic power; A test object 40 installed corresponding to an external side of the ultra-high pressure amplification unit 10; Being in the longitudinal direction of the test object 40, one end is in communication with the ultra-high pressure amplifier 10, the hydraulic fluid in the ultra-high pressure amplifier 10 is introduced into the inner circumference of the test object 40 at the amplified pressure A fluid carrier 50 that expands the test object 40 to allow the life test of the test object 40 to be performed; Characterized in that consists of.

As described above, the present invention has the effect of amplifying the pressure of the high pressure port through which the pressure-resistant oil is discharged to the ultra-high pressure through the hydraulic power introduced.

In addition, the present invention is to determine the resistance to the internal pressure of the test object through the hydraulic fluid amplified to ultra high pressure, there is an effect that can be tested for life, such as cracks, fractures.

In addition, the present invention can determine the compression rate by grasping the piston rod forward, backward position, there is an effect that can easily adjust the flow rate by controlling the hydraulic power flow into the servo valve.

1 is a circuit diagram of an embodiment showing an ultra-high pressure amplifier according to the present invention.
Figure 2 is a front cross-sectional view of an embodiment showing an ultrahigh pressure amplifier according to the present invention.
Figure 3 is a front cross-sectional view of an embodiment showing a fluid carrier according to the present invention

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, an ultrahigh pressure impulse generating device according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

As shown, the ultra-high pressure impulse generator according to the present invention includes an ultra-high pressure amplifying unit 10, the test object 40, the fluid delivery unit (50).

The ultra-high pressure amplification unit 10 is to increase the pressure inside the ultra high pressure (ex: 1000bar) by the hydraulic power (hydraulic) supplied to the inside, to discharge the hydraulic hydraulic fluid to the fluid carrier at the amplified pressure Play a role. The ultra-high pressure amplification unit 10 includes a cylinder block 11, a filling pump line 14, a piston rod 17.

The cylinder block 11 has a high-pressure port 12 formed in the longitudinal direction at the inner center of one end, and forms a low pressure port 13 by forming an empty space in the other end.

The piston rod 17 is installed in the low pressure port 13. The piston part 16 of the piston rod 17 is located in the low pressure port 13, and the rod part 15 of the piston rod 17 is provided. ) Is to be built in the high pressure port (12).

In addition, an inlet 21 is formed at an upper portion of the cylinder block 11, and the inlet 21 is formed of a plurality of forward and backward inlets 21a and 21b branched into a plurality, so that a piston part inside the cylinder block 11 is formed. (16) The hydraulic power can be supplied to both sides. When the hydraulic power is supplied through the forward inlet 21a, the piston rod 17 moves forward, and the rod part 15 also extends in the longitudinal direction in the high pressure port 12. To advance and pressurize the inside of the high pressure port (12).

The filling pump line 14 serves to fill and supply hydraulic oil into the high pressure port 12 of the above-described cylinder block 11, and the filling pump line 14 has one outer circumference of the cylinder block 11. A plurality of lines or a plurality of lines are formed to be perforated so as to communicate with the high pressure port 12 from both sides, and this filling pump line 14 serves as an inlet for introducing hydraulic oil into the high pressure port 12, but the ultra high pressure amplification part ( When the operation 10) is blocked through a separate valve (not shown) and serves as an outlet for discharging the internal pressure when the operation of the ultra-high pressure amplifier 10 is completed.

Thus, when hydraulic power flows into the low pressure port 13 in the cylinder block 11 (more specifically, the other side of the piston part 16) through the forward inlet 21a, the piston rod 17 is connected to the low pressure port. By advancing the rod part 15 to the inside of the high pressure port 12 having a relatively small diameter as compared to (13), the pressure inside the high pressure port 12 is amplified to become ultra high pressure, and thus the high pressure port (12) The hydraulic oil inside is also compressed and discharged into the fluid carrier 50 to be described later.

The test object 40 is an object to be subjected to the test to be tested for life through the ultra-high pressure amplification unit 10 in the present invention, in the present invention was a cylindrical cylinder that is penetrated in the longitudinal direction inside, The life cycle test is to be performed by testing the cracks (cracks) and breakage / crushing of such cylindrical cylinders.

Such, the test object 40 is installed corresponding to the outer side of the ultra-high pressure amplifier 10 so as to face the portion of the high-pressure port 12 formed on one side of the ultra-high pressure amplifier 10 described above. In addition, the test object 40 is not a cylinder can be a test object of various fields.

The fluid carrier 50 is inserted into the longitudinal direction of the interior of the test object 40 described above, and has a shape that can be fitted corresponding to the interior of the test object 40. That is, when the test object 40 is cylindrical, the fluid carrier 50 has a cylindrical shape with the inside filled, and the inner circumference of the test object 40 and the outer circumference of the fluid carrier 50 are in the longitudinal direction. It is in the form of mutual contact.

In addition, the fluid delivery unit 50 allows the supply line 51 to be perforated in the longitudinal direction at the inner center thereof, and the supply line 51 has a plurality of branching lines branching toward the outer circumferential side of the fluid delivery unit 50. Let 52 be more perforated.

In the present invention, the plurality of branch lines 52 are spaced apart from each other at the outer periphery of the supply line 51 and are formed in a plurality, and are formed to be perforated to be inclined in a '＼' shape along the traveling direction of the hydraulic oil, or the supply line 51 Are spaced apart from each other at the outer periphery of) and can be formed to be perforated in a '/' shape in the reverse direction of the hydraulic fluid (the opposite direction of the hydraulic fluid), and a plurality of such branched lines 52 are spaced apart from each other in the longitudinal direction of the supply line 51 and a plurality of perforations, the plurality of branches branched in all directions toward the outer periphery of the fluid carrier 50 at the same point of the supply line 51, or Alternatively, all branch points of the branch line 52 branched from the supply line 51 may be formed to be perforated differently. (In the present invention, the hydraulic fluid is to be introduced evenly throughout the longitudinal direction of the test object 40 to be tested for life, and the branch points and the number of branches of the plurality of branch lines 52 are made by the user. Various changes will be possible.)

This, both ends of the fluid carrier 50 is inserted in the longitudinal direction inside the test object 40, both ends protrude to the outside of the test object 40, and then both projecting portions of the fluid carrier 50 is The cover 53 is fixed to the test object 40, and one side of the fluid carrier 50 is connected to correspond to the high pressure port 12 at an outer side of the ultra-high pressure amplification unit 10 described above. Be sure to

As a result, the pressure is amplified to ultra high pressure while the piston rod 17 is moved forward by the hydraulic power supplied from the above-described ultra high pressure amplification unit 10, and the hydraulic hydraulic fluid is transferred to the fluid delivery unit 50 through the high pressure port 12. By being discharged to the supply line 51 of the, hydraulic hydraulic fluid discharged to the supply line 51 is introduced into the outer peripheral side of the fluid delivery unit 50 through a plurality of branch lines (52). That is, the hydraulic fluid is expanded in the pressure as the micro fluid flows between the test object 40 and the fluid carrier 50, it is possible to measure the resistance (cracking, crushing, etc.) to the internal pressure of the test object 40 is a life test It becomes possible.

In addition, in the present invention, the servo valve 20 is mounted on the inlet 21 formed at the upper portion of the ultra-high pressure amplification unit 10 to allow hydraulic power to flow therethrough, thereby being introduced through the servo valve 20. The flow rate of the hydraulic power can be controlled, and one end of the linear variable differential transformer (LVDT), displacement measuring magnetic sensor (LVDT) 30 is connected to the piston rod 17, so that the piston rod 17 is moved forward and backward. By checking, the internal compression rate can be confirmed.

In addition, the above-described ultra-high pressure amplification unit 10 is supplied with hydraulic power from the main HPU (Hydraulic Power Unit, hydraulic power generator, 100) flows into the low pressure port 13, and is introduced into the high pressure port 12 The hydraulic oil is to be supplied to the hydraulic oil through the temperature control HPU (110), the temperature control HPU (110) to be supplied by adjusting the temperature of the hydraulic oil supplied to a predetermined temperature.

In addition, reference numeral '18' of the drawings not described above represents a high pressure cover, '19' represents a low pressure block cover, '22' represents a cylinder cover, and '23' represents a low pressure block.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: ultra-high pressure generating unit 11: cylinder block
12: High pressure port 13: Low pressure port
14: filling pump line 15: rod
16: piston 17: piston rod
20: servo valve 21: inlet
30: LVDT 40: Test Subject
50: fluid carrier

Claims (6)

Ultra-high pressure amplifier 10 is amplified internal pressure by the supplied hydraulic power;
A test object 40 installed corresponding to an external side of the ultra-high pressure amplification unit 10;
Being in the longitudinal direction of the test object 40, one end is in communication with the ultra-high pressure amplifier 10, the hydraulic fluid in the ultra-high pressure amplifier 10 is introduced into the inner circumference of the test object 40 at the amplified pressure A fluid carrier 50 that expands the test object 40 to allow the life test of the test object 40 to be performed;
Ultra-high pressure impulse generator, characterized in that consisting of.
The method of claim 1,
The ultra high pressure amplifier 10
A cylinder block 11 having a high pressure port 12 formed therein and a low pressure port 13 having a diameter larger than that of the high pressure port 12 inside the other end;
Filling pump line (14) for introducing the hydraulic oil to the high pressure port (12);
One end rod portion 15 is installed in the high pressure port 12 and installed in the cylinder block 11 so as to be able to move forward and backward, and is advanced by the hydraulic power flowing into the low pressure port 13 to be moved in the high pressure port 12. A piston rod 17 for amplifying the pressure;
Ultra-high pressure impulse generator, characterized in that consisting of.
The method of claim 1,
The ultra high pressure amplifier 10
Servo valve 20 for controlling the flow rate of the hydraulic power flowing into the cylinder block 11 of the ultra-high pressure amplification unit 10;
One end is connected to the piston rod (17), LVDT (30) to be able to check the compression ratio through the forward, backward state of the piston rod (17);
Ultra-high pressure impulse generator, characterized in that is further provided.
The method of claim 1,
The fluid carrier 50 is
A supply line 51 formed therein in the longitudinal direction and into which hydraulic hydraulic oil discharged from the ultra-high pressure amplification part 10 is introduced;
A plurality of branch lines 52 are drilled to diverge from the supply line 51 toward the outer circumferential side of the fluid carrier 50 so that hydraulic fluid flows into the contact surface between the test object 40 and the fluid carrier 50. );
Ultra-high pressure impulse generator, characterized in that provided.
5. The method of claim 4,
The branch line 52 is
In the outer periphery of the supply line 51 a plurality of perforations are formed obliquely in the '＼' shape toward the traveling direction of the hydraulic oil, or a plurality of perforations are formed obliquely in the '/' shape toward the reverse direction of the hydraulic oil Ultra high pressure impulse generator.
5. The method of claim 4,
The branch line 52 is
In the longitudinal direction of the supply line 51 are spaced apart from each other and perforated,
Ultra-high pressure impulse generating device, characterized in that the branch or a plurality of branching from the outer peripheral point of the same supply line (51) are all different.
KR1020110142960A 2011-12-27 2011-12-27 Intensifier for impulse of ultra high pressure KR20130074883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110142960A KR20130074883A (en) 2011-12-27 2011-12-27 Intensifier for impulse of ultra high pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110142960A KR20130074883A (en) 2011-12-27 2011-12-27 Intensifier for impulse of ultra high pressure

Publications (1)

Publication Number Publication Date
KR20130074883A true KR20130074883A (en) 2013-07-05

Family

ID=48988863

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110142960A KR20130074883A (en) 2011-12-27 2011-12-27 Intensifier for impulse of ultra high pressure

Country Status (1)

Country Link
KR (1) KR20130074883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109555744A (en) * 2018-12-17 2019-04-02 余姚市超成机械制造有限公司 A kind of hydraulic booster valve and the supercharging mode for the detection of cylinder bottle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109555744A (en) * 2018-12-17 2019-04-02 余姚市超成机械制造有限公司 A kind of hydraulic booster valve and the supercharging mode for the detection of cylinder bottle

Similar Documents

Publication Publication Date Title
CN103424308B (en) A kind of method that Quick gas-liquid compound auto-compensation loads and auto-compensation loader
KR101635371B1 (en) Groundwater sampling device using a double acting piston
RU2014146622A (en) Prediction system for drive
CN104089824B (en) The pressure resistant testing device of major diameter Welding Structure metallic conduit
CN105443457A (en) Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same
CN103133435B (en) A kind of hydraulic accumulator
KR20130074883A (en) Intensifier for impulse of ultra high pressure
CN104879123B (en) A kind of supercharging Oil/gas Well liquid level test device certainly
CN102879156A (en) Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings
KR101566691B1 (en) Apparatus for testing leakage
CN204649400U (en) A kind of high-flow safety valve test device
CN104776962B (en) Valve detection fixture and the valve detecting system with the fixture
CN108020468B (en) Pressure-resistant test platform for automobile brake rubber pipe
JP5727648B1 (en) Hydraulic actuator assembly for power plant
KR20130083604A (en) Apparatus for generating impulse using hydraulic control pressure
CN203624264U (en) Air gun apparatus
CN203431404U (en) Magnetic high-pressure corrosion piece hanging taking-putting device
CN105782137A (en) Ultrahigh-pressure accumulator
CN102183347A (en) Sealing member sealing performance detection method and detection device
JP4277654B2 (en) High pressure cycle test equipment
KR20120025291A (en) Double-acting intensifier
RU2015157461A (en) METHOD OF EXTERNAL HYDROSTATIC PRESSURE SHELL TESTS TEST
CN201819780U (en) Pressure detection equipment for container
CN107131163B (en) It is a kind of for it is long when stablize load hydraulic loading system
SE0400390D0 (en) Method for generating pressure pulses, pressure pulse generator and one with such a piston motor

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application