CN107882783A - A kind of multiple gas cylinder fatigue test hydraulic means - Google Patents

A kind of multiple gas cylinder fatigue test hydraulic means Download PDF

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Publication number
CN107882783A
CN107882783A CN201610860196.0A CN201610860196A CN107882783A CN 107882783 A CN107882783 A CN 107882783A CN 201610860196 A CN201610860196 A CN 201610860196A CN 107882783 A CN107882783 A CN 107882783A
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China
Prior art keywords
valve
gas cylinder
way
oil
fatigue test
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Pending
Application number
CN201610860196.0A
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Chinese (zh)
Inventor
曾婷
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Individual
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Individual
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Priority to CN201610860196.0A priority Critical patent/CN107882783A/en
Publication of CN107882783A publication Critical patent/CN107882783A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401Valve members; Fluid interconnections therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20546Type of pump variable capacity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/20576Systems with pumps with multiple pumps
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0005Repeated or cyclic
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0073Fatigue

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical 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 present invention relates to gas cylinder fatigue test technology field, more particularly to a kind of multiple gas cylinder fatigue test hydraulic means, including oil groove, variable pump, the first overflow valve, three position four-way directional control valve, the first one-way throttle valve, the second one-way throttle valve, booster, tank, small pump, check valve, the second overflow valve, manual relief valve and connector, the present apparatus is simple in construction, cost is cheap, it is easy to operate, improve test efficiency.Control accuracy is high simultaneously, can meet the test requirements document of some composite material high pressure gas cylinders to gas cylinder pressurization using aqueous medium.Improve the production technology of gas cylinder by gas cylinder fatigue test, improve the combination property of gas cylinder, the development to gas cylinder industry has highly important effect.The present apparatus can carry out fatigue test to multiple gas cylinders simultaneously simultaneously, saved test period, improved test efficiency.

Description

A kind of multiple gas cylinder fatigue test hydraulic means
Technical field
The present invention relates to gas cylinder fatigue test technology field, and in particular to a kind of multiple gas cylinder fatigue test liquid Pressure device.
Background technology
The development of gas cylinder industry and industrial expansion are closely bound up.With scientific and technological level and industry high speed development, The application of gas cylinder is more and more extensive, and all kinds of high pressure high-performance gas cylinders are among continuous development & production, and gas cylinder Also it is put among civilian gas cylinder industry type approval test.Improve the production work of gas cylinder by gas cylinder fatigue test Skill, the combination property of gas cylinder is improved, the development to gas cylinder industry has highly important effect.The gas cylinder Fatigue test refers to that within a period of time the supercharging carried out to gas cylinder repeatedly is tested, and realizes continuous pulse circulation, Corresponding data of the integrity degree of gas cylinder and record etc., but existing gas cylinder fatigue experimental device structure are being observed after having tested Complexity, cost is high, and once experiment can only test a gas cylinder, and efficiency is low.
The content of the invention
It is an object of the invention to provide a kind of multiple gas cylinder fatigue test hydraulic pressure dresses simple in construction, efficiency high Put.
In order to achieve the above object, the technical solution adopted by the present invention is:A kind of multiple gas cylinder fatigue test hydraulic pressure Device, including oil groove, variable pump, the first overflow valve, three position four-way directional control valve, the first one-way throttle valve, the second one-way throttle valve, Booster, tank, small pump, check valve, the second overflow valve, manual relief valve and connector, the oil inlet of the variable pump with Oil groove is connected, and the oil inlet of the oil-out of variable pump all the way with the first overflow valve is connected, the P of another way and three position four-way directional control valve Mouth connection, the oil-out of first overflow valve are connected with oil groove, and the T mouths of the three position four-way directional control valve are connected with oil groove, institute The A mouths for stating three position four-way directional control valve are connected with the oil inlet of the first one-way throttle valve, the B mouths of the three position four-way directional control valve and The oil inlet connection of two one-way throttle valves, the booster include low pressure chamber, rod chamber and high pressure chest, first one-way throttle The oil-out of valve and the low pressure chamber of booster connect, and the oil-out of second one-way throttle valve and the rod chamber of booster connect Connect, the import of the small pump is connected with tank, and the import exported all the way with the second overflow valve of the small pump is connected, another The import connection of road and check valve, the outlet of second overflow valve are connected with tank, the outlet of the check valve and the increasing The C mouths connection of depressor high pressure chest, the connector are provided with connection import, circulation passage, pressure relief vent and multiple connection outlets, Connection import, pressure relief vent and multiple connection outlets are respectively connected with circulation passage, the D of the booster high pressure chest Mouthful connected be connected import, the connection outlet is connected with tested gas cylinder, the pressure relief vent manually relief valve and Tank connects.
A kind of multiple gas cylinder fatigue test hydraulic means as described above, further illustrate and are, the variable pump Oil inlet is provided with filter.
A kind of multiple gas cylinder fatigue test hydraulic means as described above, further illustrate and are, on the connector Provided with pressure gauge.
The beneficial effects of the invention are as follows:The present apparatus is simple in construction, cost is cheap, easy to operate, improves test efficiency.Together When control accuracy it is high, the test requirements document of some composite material high pressure gas cylinders can be met to gas cylinder pressurization using aqueous medium.Pass through Gas cylinder fatigue test improves the production technology of gas cylinder, improves the combination property of gas cylinder, the development to gas cylinder industry There is highly important effect.The present apparatus can carry out fatigue test to multiple gas cylinders simultaneously simultaneously, saved test period, carried High test efficiency.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is connecting-piece structure schematic diagram.
In figure:1st, oil groove;2nd, variable pump;3rd, the first overflow valve;4th, three position four-way directional control valve;5th, the first one-way throttle valve; 6th, the second one-way throttle valve;7th, booster;8th, tank;9th, small pump;10th, check valve;11st, the second overflow valve;12nd, manual pressure release Valve;13rd, connector;130th, import is connected;131st, circulation passage;132nd, pressure relief vent;133rd, connection outlet;14th, it is tested high pressure Gas cylinder;15th, pressure gauge;16th, filter.
Embodiment
Embodiment of the present invention is further elaborated below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 2, a kind of multiple gas cylinder fatigue test hydraulic means provided by the invention, including oil groove 1st, variable pump 2, the first overflow valve 3, three position four-way directional control valve 4, the first one-way throttle valve 5, the second one-way throttle valve 6, booster 7th, tank 8, small pump 9, check valve 10, the second overflow valve 11, manual relief valve 12 and connector 13.
Described booster 7 is known to the skilled person technology, only does simple elaboration here, and the booster 7 wraps Low pressure chamber, rod chamber and high pressure chest are included, booster 7 is simple in construction, and its work function is similar to regulations and parameters principle, in boost phase, Fluid enters low pressure chamber, and pressure is acted on its big piston, promotes piston movement, and according to mechanical balance, now valve piston also can Pressure that is mobile and exporting an amplification, pressure ratio is two-piston area ratio, now the medium in high pressure chest will with compared with High pressure is exported, and its specific internal structure does not illustrate here.
As shown in figure 1, the variable pump 2 is the power source of whole device, hydraulic oil is endlessly provided to the device, It is set to complete necessary operation, the variable pump 2 can select plunger pump, or two-way variable displacement pump, not limit here.It is described The oil inlet of variable pump 2 is connected with oil groove 1, and the oil inlet of the variable pump 2 can also set filter 16, pass through filter 16 It can be filtered to entering the hydraulic oil in device, so as to protect each equipment in system, extend equipment uses the longevity Life.
Oil inlet of the oil-out of variable pump 2 all the way with the first overflow valve 3 is connected, another way and three position four-way directional control valve 4 The connection of P mouths, the oil-out of first overflow valve 3 is connected with oil groove 1, is i.e. the effect of its safety valve of the first overflow valve 3, is used for The output pressure of variable pump 2 is controlled, reduces compression shock, ensures the normal operation of the present apparatus.
The T mouths of the three position four-way directional control valve 4 are connected with oil groove 1, realize the backflow of hydraulic oil, the 3-position 4-way commutation The A mouths of valve 4 are connected with the oil inlet of the first one-way throttle valve 5, the B mouths and the second one-way throttle of the three position four-way directional control valve 4 The oil inlet connection of valve 6, the oil-out of first one-way throttle valve 5 are connected with the low pressure chamber of booster 7, and described second is unidirectional The oil-out of choke valve 6 is connected with the rod chamber of booster 7.
Because during experiment, experiment inherently causes certain leakage with medium, so the present apparatus is additionally provided with moisturizing Pump 9, the import of the small pump 9 are connected with tank 8, and the import exported all the way with the second overflow valve 11 of the small pump 9 connects Connecing, another way is connected with the import of check valve 10, and the outlet of second overflow valve 11 is connected with tank 8, and similarly described second Overflow valve 11 also does safety valve use, and its pressure set points is decided in its sole discretion according to test situation.
The outlet of the check valve 10 is connected with the C mouths of the high pressure chest of booster 7, as shown in Fig. 2 the connector 13 Connection import 130, circulation passage 131, pressure relief vent 132 and multiple connection outlets 133 are provided with, the connection import 130, is let out Mouth 132 and multiple connection outlets 133 is extruded respectively with circulation passage 131 to be connected, the D mouths of the high pressure chest of booster 7 with Connection import 130 is connected, and the connection outlet 133 is connected with tested gas cylinder 14, and the quantity of the connection outlet 133 is not set When limiting, decided in its sole discretion according to service condition, such as needing once to carry out fatigue test to 4 gas cylinders simultaneously, at this moment connect The quantity of exit 133 is 4, and manually relief valve 12 is connected the pressure relief vent 132 with tank 8.Pass through the company of setting Fitting 13 can improve test efficiency, instead of traditional direct situation that tested gas cylinder 14 is connected with equipment, make Present apparatus safety coefficient is higher, protects testing crew personal safety.By setting multiple connection outlets on connector 13 133, fatigue test can be carried out to multiple gas cylinders simultaneously, save test period, improved test efficiency.
For the ease of the pressure value during viewing test, pressure gauge 15 is provided with connector 13, passes through pressure gauge 15 Pressure during energy directly observation experiment.
Operation principle of the present invention is:Experiment process acts including multiplicating, is divided into supercharging rank in each repetitive operation again Section, packing stage and pressure release stage, during on-test, manual relief valve 12 is first shut off, booster 7 is made by small pump 9 High pressure chest and tested gas cylinder 14 are full of water.Restart variable pump 2, in pressurization stages, be in three position four-way directional control valve 4 Left station, the hydraulic oil that now variable pump 2 exports, which enters in the low pressure chamber of booster 7, promotes piston rod to move right, and increases simultaneously Hydraulic oil in the rod chamber of depressor 7 by being returned to after the second one-way throttle valve 6 and three position four-way directional control valve 4 in oil groove 1, due to Check valve 10 is provided with, now the water in the high pressure chest of booster 7 will be entered in multiple tested gas cylinders 14, completion pair It is pressurized while multiple tested gas cylinder 14, when pressure reaches test value, three position four-way directional control valve 4 is located at middle work Position, so as to which tested gas cylinder 14 is in packing state, after reaching the dwell time, three position four-way directional control valve 4 is in right work Position, the hydraulic oil that now variable pump 2 exports, which enters in the rod chamber of booster 7, promotes piston rod to be moved to the left, so as to booster 7 High pressure chest complete pressure release, tested gas cylinder 14 be in atmospheric pressure state, if now needing progress moisturizing, pass through small pump 9 moisturizings, the pressure during experiment is reached virtual value, ensure the accuracy of experiment, so complete to tested height Repetitive operation of air bottle 14, in circulation.After the completion of experiment, by opening the manual pressure release of relief valve 12, remove Tested gas cylinder 14, simple operation are simple in construction.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, art technology The various deformations or amendments that personnel can make without creative work are protected by this patent.

Claims (3)

  1. A kind of 1. multiple gas cylinder fatigue test hydraulic means, it is characterised in that:Including oil groove (1), variable pump (2), first Overflow valve (3), three position four-way directional control valve (4), the first one-way throttle valve (5), the second one-way throttle valve (6), booster (7), water Groove (8), small pump (9), check valve (10), the second overflow valve (11), manual relief valve (12) and connector (13), the variable The oil inlet of pump (2) is connected with oil groove (1), and the oil inlet of the oil-out of variable pump (2) all the way with the first overflow valve (3) is connected, Another way is connected with the P mouths of three position four-way directional control valve (4), and the oil-out of first overflow valve (3) is connected with oil groove (1), institute The T mouths for stating three position four-way directional control valve (4) are connected with oil groove (1), the A mouths of the three position four-way directional control valve (4) and the first unidirectional section The oil inlet connection of valve (5) is flowed, the B mouths of the three position four-way directional control valve (4) and the oil inlet of the second one-way throttle valve (6) connect Connect, the booster (7) includes low pressure chamber, rod chamber and high pressure chest, the oil-out of first one-way throttle valve (5) and supercharging The low pressure chamber connection of device (7), the oil-out of second one-way throttle valve (6) are connected with the rod chamber of booster (7), the benefit The import of water pump (9) is connected with tank (8), and the import of the outlet of the small pump (9) all the way with the second overflow valve (11) is connected, Another way is connected with the import of check valve (10), and the outlet of second overflow valve (11) is connected with tank (8), the check valve (10) outlet is connected with the C mouths of the booster (7) high pressure chest, and the connector (13) is provided with connection import (130), stream Circulation passage (131), pressure relief vent (132) and multiple connection outlets (133), the connection import (130), pressure relief vent (132) Respectively it is connected with multiple connection outlets (133) with circulation passage (131), the D mouths of booster (7) high pressure chest are with being connected Import (130) connects, and the connection outlet (133) is connected with tested gas cylinder (14), and the pressure relief vent (132) passes through hand Dynamic relief valve (12) is connected with tank (8).
  2. A kind of 2. multiple gas cylinder fatigue test hydraulic means according to claim 1, it is characterised in that:The variable The oil inlet of pump (2) is provided with filter (16).
  3. A kind of 3. multiple gas cylinder fatigue test hydraulic means according to claim 1, it is characterised in that:The connection Part (13) is provided with pressure gauge (15).
CN201610860196.0A 2016-09-29 2016-09-29 A kind of multiple gas cylinder fatigue test hydraulic means Pending CN107882783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610860196.0A CN107882783A (en) 2016-09-29 2016-09-29 A kind of multiple gas cylinder fatigue test hydraulic means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610860196.0A CN107882783A (en) 2016-09-29 2016-09-29 A kind of multiple gas cylinder fatigue test hydraulic means

Publications (1)

Publication Number Publication Date
CN107882783A true CN107882783A (en) 2018-04-06

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ID=61768730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610860196.0A Pending CN107882783A (en) 2016-09-29 2016-09-29 A kind of multiple gas cylinder fatigue test hydraulic means

Country Status (1)

Country Link
CN (1) CN107882783A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112595615A (en) * 2020-12-26 2021-04-02 信达科创(唐山)石油设备有限公司 Coiled tubing fatigue machine and hydraulic system thereof
CN115324952A (en) * 2022-08-12 2022-11-11 山东兖矿智能制造有限公司 Valve body detection hydraulic system and valve body detection test device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112595615A (en) * 2020-12-26 2021-04-02 信达科创(唐山)石油设备有限公司 Coiled tubing fatigue machine and hydraulic system thereof
CN115324952A (en) * 2022-08-12 2022-11-11 山东兖矿智能制造有限公司 Valve body detection hydraulic system and valve body detection test device

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Application publication date: 20180406