CN109632539A - A kind of liquefied petroleum gas cylinder fatigue test system and its working method - Google Patents
A kind of liquefied petroleum gas cylinder fatigue test system and its working method Download PDFInfo
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- CN109632539A CN109632539A CN201811382650.1A CN201811382650A CN109632539A CN 109632539 A CN109632539 A CN 109632539A CN 201811382650 A CN201811382650 A CN 201811382650A CN 109632539 A CN109632539 A CN 109632539A
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- Prior art keywords
- solenoid valve
- controller
- pressure
- storage tank
- compressor
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- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic 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
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of liquefied petroleum gas cylinder fatigue test system and its working method, belong to the fatigue test technology field of LP gas cylinder.This fatigue test system includes high pressure storage tank, compressor, controller and low pressure buffer tank.High pressure storage tank is equipped with pressure sensor, charge and discharge solenoid valve and safety valve, and high pressure storage tank connects low pressure buffer tank through compressor using pipeline, and low pressure buffer tank connects test specimen through solenoid valve using pipeline, and test specimen connects high pressure storage tank through solenoid valve using pipeline；During the entire process of test, compressor keeps normal operating condition；Controller uses PLC controller, controls each pressure sensor, solenoid valve, realizes the cycling fatigue experiment to test specimen.The fatigue test system can effectively simulate the inflation/deflation process of liquefied gas bottle under truth, complete the testing fatigue of associated cylinder, guarantee the reliability of gas cylinder quality and work.
Description
Technical field
The present invention relates to a kind of liquefied petroleum gas cylinder fatigue test system and its working methods, belong to LP gas cylinder
Fatigue test technology field.
Background technique
With the development of science and technology, demand of the people to resource continues to increase, and the mode of the utilization of resources is mutually coped with not
It is disconnected to improve.Gaseous fuel in life, is then deposited gaseous fuel as the efficient energy, more and more common application
It stores up, transport and uses and propose different requirements.Especially liquefied petroleum gas (LPG) is frequently made in daily life production
With accordingly considering its gas cylinder safely.
The important container that gas cylinder is used as the frequent routine of fuel gas, there is different requirements.Meeting its pressure strip
While the features such as part, strength condition, also to pay attention to safety problem.Wherein not only comprising examining the inflammable and explosive characteristic of fuel
Consider, it is also desirable to gas cylinder frequently be reused, gas charge and discharge security risk caused by gas cylinder safely repeatedly.Therefore gas cylinder is pacified
Full property examine it is essential needs to introduce fatigue test, to test specimen bear periodical gas effect have one can be relatively
Reliable intuitive measurement data.So introduce fatigue test gas cylinder is tested, thus simulate it is daily to gas cylinder reuse,
It determines the service life of gas cylinder, guarantees particularly significant to the safety of the person and property.
The high pressure fatigue tester of patent CN102798570A describes a kind of high pressure for high pressure gas cylinder fatigue test
Fatigue tester, including hydraulic system, cooling recirculation system, electric control system, display system and pressurized cylinder.The patent
Using hydraulic oil as test(ing) medium, testing fatigue is carried out to gas cylinder under high pressure.Pressurization is pressurized using booster.
This patent is unable to complete the fatigue test using liquefied gas as medium.
Summary of the invention
In order to overcome problems of the prior art, the present invention provides a kind of liquefied petroleum gas cylinder fatigue test system
And its working method.The system can not only reuse test gas, and realize inflation/deflation by automatically controlling, can be to examination
Part simulates the tired situation under applying working condition.
The technical solution adopted by the present invention is that: a kind of liquefied petroleum gas cylinder fatigue test system, pilot system include height
Pressing storage tank, compressor and controller, pilot system further includes low pressure buffer tank.The high pressure storage tank is sensed equipped with first pressure
Device, charge and discharge solenoid valve and safety valve, high pressure storage tank are successively connected with second through check valve, compressor and filter using pipeline
The low pressure buffer tank of pressure sensor, low pressure buffer tank are connected with third pressure sensor through second solenoid valve using pipeline
Test specimen, test specimen connect high pressure storage tank through the first solenoid valve using pipeline；The controller uses PLC controller, three pressures
The control relay of force snesor, three solenoid valves and compressor is electrically connected with the controller.
The controller uses S7-300(CPU314C) PLC controller.
A kind of working method of liquefied petroleum gas cylinder fatigue test system, starts the compressor, institute first
It states controller while opening charge and discharge solenoid valve, test(ing) medium is filled with high pressure storage tank, when first pressure sensor reaches the upper of setting
When limit value, charge and discharge solenoid valve is closed；Controller is then turned on the first solenoid valve, and high-pressure medium flows into test specimen；When third pressure passes
When sensor reaches the upper limit value of setting, the first solenoid valve is closed, and carries out pressure maintaining；When pressure maintaining reaches setting time, controller is opened
Second solenoid valve is opened, test(ing) medium is released into low pressure buffer tank, when third pressure sensor reaches the lower limit value of setting, second
Solenoid valve is closed；During the entire process of test, compressor keeps normal operating condition；The controller is to each pressure sensing
Device, solenoid valve are controlled, and realize the cycling fatigue experiment to test specimen.
The beneficial effects of the present invention are: this liquefied petroleum gas cylinder fatigue test system include high pressure storage tank, compressor,
Controller and low pressure buffer tank.High pressure storage tank is equipped with pressure sensor, charge and discharge solenoid valve and safety valve, and high pressure storage tank is using pipe
Road connects low pressure buffer tank through compressor, and low pressure buffer tank connects test specimen through solenoid valve using pipeline, and test specimen is using pipeline through electricity
Magnet valve connects high pressure storage tank；During the entire process of test, compressor keeps normal operating condition；Controller is controlled using PLC
Device processed controls each pressure sensor, solenoid valve, realizes the cycling fatigue experiment to test specimen.The fatigue test system can
The inflation/deflation process of liquefied gas bottle, completes the testing fatigue of associated cylinder, guarantees gas cylinder quality effectively under simulation truth
With the reliability of work.
Detailed description of the invention
Fig. 1 is a kind of liquefied petroleum gas cylinder fatigue test system schematic diagram.
Fig. 2 is controller principle figure.
In figure: 1, high pressure storage tank, 2, first pressure sensor, 2a, second pressure sensor, 2b, third pressure sensor,
3, charge and discharge solenoid valve, 4, safety valve, 5, low pressure buffer tank, 6, check valve, 7, compressor, 8, filter, the 9, first solenoid valve,
9a, second solenoid valve, 10, controller, 11, test specimen.
Specific embodiment
Fig. 1 shows a kind of working principle diagram of liquefied petroleum gas cylinder fatigue test system.In figure, this liquefied petroleum
Gas bottle fatigue test system includes high pressure storage tank 1, compressor 7, controller 10 and low pressure buffer tank 5.High pressure storage tank 1 is equipped with
First pressure sensor 2, charge and discharge solenoid valve 3 and safety valve 4, high pressure storage tank 1 is using pipeline successively through check valve 6,7 and of compressor
Filter 8 is connected with the low pressure buffer tank 5 of second pressure sensor 2a, and low pressure buffer tank 5 is using pipeline through second solenoid valve
9a is connected with the test specimen 11 of third pressure sensor 2b, and test specimen 11 connects high pressure storage tank 1 through the first solenoid valve 9 using pipeline.
Controller 10 uses PLC controller, the control relay of three pressure sensors, three solenoid valves and compressor 7 and control
Device 10 processed is electrically connected.
Fig. 2 shows controllers using the working principle diagram of S7-300(CPU314C) PLC controller.Inputting parameter is the
The pressure signal of one pressure sensor 2, second pressure sensor 2a and third pressure sensor 2b, through CPU314C calculation process
Afterwards, output signal control charge and discharge solenoid valve 3, the first solenoid valve 9, second solenoid valve 9a and compressor 7 work, loop control liquefaction
The overall process of petroleum gas cylinder fatigue test.
The working method (by taking design pressure is 3.2MPa as an example) of this liquefied petroleum gas cylinder fatigue test system uses
The step of it is as follows:
(a) start compressor 7 first, controller 10 opens charge and discharge solenoid valve 3 simultaneously, and test(ing) medium is filled with high pressure storage tank 1, when the
When one pressure sensor 2 reaches upper limit value (4.0MPa) of setting, charge and discharge solenoid valve 3 is closed；
(b) controller 10 opens the first solenoid valve 9, and high-pressure medium flows into test specimen 11；
(c) when third pressure sensor 2b reaches upper limit value (3.2MPa) of setting, the first solenoid valve 9 is closed, and carries out pressure maintaining；
(d) when pressure maintaining reaches setting time, controller 10 opens second solenoid valve 9a, and test(ing) medium is released into low pressure buffer tank
5；
(e) when third pressure sensor 2b reaches lower limit value (0.1MPa) of setting, second solenoid valve 9a is closed；
During the entire process of test, compressor 7 keeps normal operating condition；Controller 10 is to each pressure sensor, electromagnetism
Valve is controlled, and realizes the cycling fatigue experiment to test specimen.
When failure case occur in the testing time or test specimen 11 of the completion setting of test specimen 11, system is automatically closed；Second pressure
Force snesor 2a is used to monitor the pressure in low pressure buffer tank 5；If superpressure, safety occur for high pressure storage tank 1 in the whole process
Valve 4 can be opened, and pressure discharge operations are carried out.
Claims (3)
1. a kind of liquefied petroleum gas cylinder fatigue test system, pilot system includes high pressure storage tank (1), compressor (7) and control
Device (10), it is characterized in that: pilot system further includes low pressure buffer tank (5), the high pressure storage tank (1) senses equipped with first pressure
Device (2), charge and discharge solenoid valve (3) and safety valve (4), high pressure storage tank (1) using pipeline successively through check valve (6), compressor (7) and
Filter (8) is connected with the low pressure buffer tank (5) of second pressure sensor (2a), and low pressure buffer tank (5) is using pipeline through the
Two solenoid valves (9a) are connected with the test specimen (11) of third pressure sensor (2b), and test specimen (11) is using pipeline through the first solenoid valve
(9) high pressure storage tank (1) is connected；The controller (10) uses PLC controller, three pressure sensors, three solenoid valves
It is electrically connected with the control relay of compressor (7) with controller (10).
2. a kind of liquefied petroleum gas cylinder fatigue test system according to claim 1, it is characterized in that: the controller
(10) S7-300(CPU314C is used) PLC controller.
3. the working method of a kind of liquefied petroleum gas cylinder fatigue test system according to claim 1, it is characterized in that: first
First start the compressor (7), the controller (10) opens charge and discharge solenoid valve (3) simultaneously, and test(ing) medium is filled with high pressure storage tank
(1), when first pressure sensor (2) reaches the upper limit value of setting, charge and discharge solenoid valve (3) is closed；Controller (10) is then turned on
First solenoid valve (9), high-pressure medium flow into test specimen (11)；When third pressure sensor (2b) reaches the upper limit value of setting,
First solenoid valve (9) is closed, and pressure maintaining is carried out；When pressure maintaining reaches setting time, controller (10) opens second solenoid valve (9a),
Test(ing) medium is released into low pressure buffer tank (5), when third pressure sensor (2b) reaches the lower limit value of setting, second solenoid valve
(9a) is closed；During the entire process of test, compressor (7) keeps normal operating condition；The controller (10) is to each pressure
Force snesor, solenoid valve are controlled, and realize the cycling fatigue experiment to test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382650.1A CN109632539A (en) | 2018-11-20 | 2018-11-20 | A kind of liquefied petroleum gas cylinder fatigue test system and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382650.1A CN109632539A (en) | 2018-11-20 | 2018-11-20 | A kind of liquefied petroleum gas cylinder fatigue test system and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109632539A true CN109632539A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811382650.1A Pending CN109632539A (en) | 2018-11-20 | 2018-11-20 | A kind of liquefied petroleum gas cylinder fatigue test system and its working method |
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| CN (1) | CN109632539A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018069A (en) * | 2019-05-16 | 2019-07-16 | 上海市特种设备监督检验技术研究院 | A kind of high pressure gas cylinder hydrogen cyclic test system |
| CN110104208A (en) * | 2019-05-09 | 2019-08-09 | 中国飞机强度研究所 | A kind of air inflation discharging control device |
| CN110361057A (en) * | 2019-08-27 | 2019-10-22 | 青岛越洋工程咨询有限公司 | A kind of multi objective pressure vessel detection device |
| CN113252462A (en) * | 2021-06-07 | 2021-08-13 | 潍柴动力股份有限公司 | Method and system for detecting gas cylinder and readable storage medium |
| CN113899637A (en) * | 2021-11-19 | 2022-01-07 | 天津市通洁高压泵制造有限公司 | Fatigue testing machine for high-pressure gas cylinder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587972A (en) * | 2004-08-03 | 2005-03-02 | 大连理工大学 | Hydraulic fatigue test system for pressure container |
| CN102346119A (en) * | 2010-08-04 | 2012-02-08 | 北京航天试验技术研究所 | Gas charging and discharging test apparatus for high-pressure composite material gas storage cylinder |
-
2018
- 2018-11-20 CN CN201811382650.1A patent/CN109632539A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587972A (en) * | 2004-08-03 | 2005-03-02 | 大连理工大学 | Hydraulic fatigue test system for pressure container |
| CN102346119A (en) * | 2010-08-04 | 2012-02-08 | 北京航天试验技术研究所 | Gas charging and discharging test apparatus for high-pressure composite material gas storage cylinder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104208A (en) * | 2019-05-09 | 2019-08-09 | 中国飞机强度研究所 | A kind of air inflation discharging control device |
| CN110018069A (en) * | 2019-05-16 | 2019-07-16 | 上海市特种设备监督检验技术研究院 | A kind of high pressure gas cylinder hydrogen cyclic test system |
| CN110361057A (en) * | 2019-08-27 | 2019-10-22 | 青岛越洋工程咨询有限公司 | A kind of multi objective pressure vessel detection device |
| CN110361057B (en) * | 2019-08-27 | 2023-11-28 | 青岛越洋工程咨询有限公司 | Multi-index pressure vessel detection device |
| CN113252462A (en) * | 2021-06-07 | 2021-08-13 | 潍柴动力股份有限公司 | Method and system for detecting gas cylinder and readable storage medium |
| CN113899637A (en) * | 2021-11-19 | 2022-01-07 | 天津市通洁高压泵制造有限公司 | Fatigue testing machine for high-pressure gas cylinder |
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Application publication date: 20190416 |