CN201069424Y - 350MPa ultra-high pressure fatigue test system - Google Patents
350MPa ultra-high pressure fatigue test system Download PDFInfo
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- CN201069424Y CN201069424Y CNU2007200412420U CN200720041242U CN201069424Y CN 201069424 Y CN201069424 Y CN 201069424Y CN U2007200412420 U CNU2007200412420 U CN U2007200412420U CN 200720041242 U CN200720041242 U CN 200720041242U CN 201069424 Y CN201069424 Y CN 201069424Y
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Abstract
A super-high pressure (350MPa) fatigue test system is provided, which comprises a hydraulic system, a super-high pressure system and a data acquisition control system. The system is characterized in that the hydraulic system utilizes the main oil pump motor assembly as power supply; a high-pressure filter, an oil supply one-way valve and a three-position four-way directional control valve are arranged in order in the main oil supply pipe and connected in series via the main oil supply pipe to form two oil supply passages which work alternately to supply power to the super-high pressure system; the super-high pressure system utilizes a centrifugal water pump to supply working water to the booster; and a super-high pressure meter, a safety valve and a super-high pressure adapter are arranged in series in a super-high pressure water outlet pipe.
Description
Technical field
The utility model relates to hydraulic fatigue test system, more specifically is say so pressure vessel and pressure pipeline 350MPa UHV (ultra-high voltage) fatigue test system.
Background technology
Ultrahigh pressure vessel and pipeline are widely used in petrochemical complex, shaped by fluid pressure, mining, new material processing processing, military project and other special occasions, and in use often there are the pressure fatigue phenomenon in these ultrahigh pressure vessels or pipeline, therefore, the fatigue strength research to ultrahigh pressure vessel or pipeline is significant.
In Fatigue Test Research, the main at present dual mode that adopts: one, estimate fatigue limit with the test figure of fatigue of materials sample or fracturing mechanics sample; Its two, carry out the torture test of structural member or model configuration spare.The fatigure failure of ultrahigh pressure vessel and pipeline is to be under the multi-dimensional stress state, adds the influence of factors such as anisotropy of material, pressure medium and technology, it is studied just complicated more.As seen, adopt the second way more can determine its fatigue limit reliably, study its fatigure failure rule exactly.Therefore, the external UHV (ultra-high voltage) fatigue experimental device of successively having set up two types, i.e. tailored version and universal, as the supercharger high pressure cylinder body, it is simple and compact for structure with test specimen itself for tailored version, and control is convenient, is easy to realization.The external at present this form that adopts more.But this version is restricted test specimen shape, size, and the scope of application is very narrow, and manufacturability is relatively poor, also has a top that is easy to damage.Though and the versatility device can be tested the test specimen of different size under a different shape and the constant volume, the scope of application is wider, and its device is formed and the control complexity, and one-time investment is big.Domesticly carry out in this respect experimental study since the seventies in last century.But because the difficulty of aspects such as the complicacy of pilot system and control technology, domestic most hydraulic fatigue test system is confined to below the 32MPa, the still NO so far ultrahigh pressure vessel fatigue limit data that reach the 350MPa pressure stage.
The utility model content:
The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of, for the fatigue strength research of ultrahigh pressure vessel or pipeline is given security with modular organization simplied system structure, the reliable 350MPa UHV (ultra-high voltage) of raising system works fatigue test system.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model 350MPa UHV (ultra-high voltage) fatigue test system is made of hydraulic system, extra high voltage system and data acquisition control system.
Design feature of the present utility model is:
Hydraulic system is a power source with the main oil pump motor group, by main oil supply pipe, series connection in regular turn be arranged on high pressure filter, oil feed non-return valve and three position four-way directional control valve in the main oil supply pipe constitute the two-way alternation, for described extra high voltage system provides the two-way oil transportation channel of pressure source, each road flow speed control valve is set respectively in the two-way oil transportation channel of alternation; Discharge channel in the hydraulic system is made of flow speed control valve, three-position four-way valve, two position three-way valve, discharge channel surplus valve and air cooler;
Extra high voltage system provides the work water source of supercharger with centrifugal water pump, and series connection is provided with filtrator in the supply channel that inserts supercharger, and series connection is provided with UHV (ultra-high voltage) tensimeter, safety valve and UHV (ultra-high voltage) joint in regular turn in the UHV (ultra-high voltage) outlet pipeline; In the UHV (ultra-high voltage) discharge channel in extra high voltage system controlled pressure-release valve and two-position-five-way solenoid valve are set;
Data acquisition control system is a signal detection device with the thermopair that is arranged on the UHV (ultra-high voltage) pressure transducer in the UHV (ultra-high voltage) outlet pipeline and be arranged in the hydraulic reservoir.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model is simplified system architecture by hydraulic system, extra high voltage system and data acquisition control system are carried out the modularization setting greatly.
2, the utility model can reach the UHV (ultra-high voltage) of 350MPa pressure stage by supercharger is set, and realizes the UHV (ultra-high voltage) torture test.
3, the utility model perfect function, unit can realize that test parameterss such as test pressure, tired frequency are regulated and the control module operation.
4, the utility model can select for use plunger oil pump satisfying the requirement of system for maximum working pressure (MWP), and can be before test as requested the pressure cycling frequency rotating speed of regulating drive motor by frequency converter change the delivery rate of oil pump.
5, the utility model has considered that hydrocooler commonly used in the past easily causes refrigeratory to damage when environment temperature reduces, and has adopted air-cooled refrigeratory, improves the reliability of system works.
6, the utility model can carry out the UHV (ultra-high voltage) release by selecting pneumatic controlled pressure-release valve for use, and opening speed is fast, has effectively reduced UHV (ultra-high voltage) release liquid flow impact, valve long service life, reliability height.
Description of drawings
Fig. 1 is the utility model system architecture synoptic diagram.
Number in the figure: 1 hydraulic reservoir, 2 air cleaner, 3 main oil pump motor groups, 4 high pressure filters, 5 differential pressure transmitter devices, 6 oil circuit tensimeters, 7 oil circuit pressure transducers, 8 oil supply pipe surplus valves, 9 discharge channel surplus valves, 10 oil feed non-return valve, 11 three position four-way directional control valves, 12 two position three way directional control valves, 13 flow speed control valves, 14 depressurized circuit tensimeters, 15 superchargers, 16 UHV (ultra-high voltage) tensimeters, 17 safety valve, 18 UHV (ultra-high voltage) pressure transducers, 19 controlled pressure-release valves, 20 two-position-five-way solenoid valves, 21 electro connecting pressure gauges, 22 water filters, 23 centrifugal water pumps, 24 water tank air cleaner, 25 water tanks, 26 air coolers, 27 thermopairs, 28 UHV (ultra-high voltage) joints, 29 switch boards, 30 computing machines, I master's oil feed line, the II oil transportation channel, III UHV (ultra-high voltage) discharge channel, the IV discharge channel, the V supply channel, VI UHV (ultra-high voltage) outlet pipeline.
Below, in conjunction with the accompanying drawings the utility model is further described by embodiment:
Embodiment:
Referring to Fig. 1, system's setting comprises that hydraulic system, extra high voltage system and data acquisition control system principle of work are the low pressure (LP) cylinder supply pressure oil by hydraulic system supercharger in extra high voltage system, the low-pressure water that is provided by supply channel is through the supercharger supercharging, producing high-pressure water is transported in the UHV (ultra-high voltage) test section by the UHV (ultra-high voltage) joint, the pressure cycling that is subjected to during the work of simulation extra high voltage system checks its fatigue lifetime and the limit whether can satisfy request for utilization.
In concrete the enforcement, hydraulic system is a power source with main oil pump motor group 3, be arranged on the two-way pipeline road II that high pressure filter 4, oil feed non-return valve 10, three position four-way directional control valve 11 among the main oil supply pipe I constitutes alternation by main oil supply pipe I, series connection in regular turn, for the to-and-fro movement of high pressure turbocharger low pressure (LP) cylinder provides pressure source; Three position four-way directional control valve 11, two position three way directional control valve 12, discharge channel surplus valve 9, air cooler 26 to hydraulic reservoir 1 constitute depressurized circuit IV, and depressurized circuit tensimeter 14 is set.Main oil pump adopts plunger oil pump, is variable output pump, can be before test according to the delivery rate of fatigue experiment required pressure cycle frequency manual adjustments pump; Perhaps also can change the delivery rate of oil pump by the rotating speed that frequency converter is regulated drive motor.
During system works, by plunger oil pump with after the hydraulic oil in system's fuel tank 1 pressurization, after through high pressure filter 4 fine filterings, be transported in the system oil-way, the working pressure of system is controlled by the oil supply pipe surplus valve 8 that is arranged on the plunger oil pump exit, and can be simultaneously displayed on the worktable by oil circuit tensimeter 6 and oil circuit pressure transducer 7 and secondary instrument.Why select oil circuit tensimeter 6 and 7 whiles of oil circuit pressure transducer element simultaneously as the monitoring system working pressure, be in order to prevent in the use, the zero drift of oil circuit pressure transducer 7 and cause the monitoring inaccurate, use simultaneously and can guarantee testing result accurately and reliably, oil circuit pressure transducer 7 can adopt electro connecting pressure gauge.
Liquid level gauge is installed to show the oil level in the hydraulic reservoir 1 at the sidewall of system's hydraulic reservoir 1, the top of hydraulic reservoir 1 is equipped with air cleaner 2 and is consistent with guard box internal gas pressure and atmospheric pressure.The sidewall middle part of hydraulic reservoir 1 also is equipped with thermopair 27 with oil temperature in the monitoring case.When the oil temperature was too high, this sensor sent signal to control system, and the air cooler of installing on the starting box body sidewall 26 dispels the heat, and after the temperature that oily temperature drop sets to system, forced air cooler 26 stops automatically, was no more than the temperature that system sets to guarantee oily temperature.Use air-cooled refrigeratory can effectively avoid refrigeratory to damage in the system because of water freezes.
Pressure reduction signal transmitter 5 is installed on high pressure filter 4, when the filter core obstruction of high pressure filter 4 causes the inlet and outlet pressure difference to exceed setting value, pressure reduction signal transmitter 5 can be sent out signal automatically, remind operator's renew cartridge more in time, to prevent that the filter core breakage from polluting impurity and entering the bigger damage of formation in system's principal pressure oil pipe.
The element of all hydraulic system all is centrally mounted on the food tray, and each operation valve adopts integrated form to install.Floor area that so both can reduction system also is convenient to change and repair and maintenance.
Shown in Figure 1, extra high voltage system is made up of water tank 25, centrifugal water pump 23, water filter 22, high pressure turbocharger 15, controlled pressure-release valve 19, UHV (ultra-high voltage) tensimeter 16, UHV (ultra-high voltage) pressure transducer 18, safety valve 17, two-position-five-way solenoid valve 20, supply channel V, UHV (ultra-high voltage) outlet pipeline VI and UHV (ultra-high voltage) discharge channel III.By centrifugal water pump 23, water filter 22, water supply line V is delivered to high pressure turbocharger 15 with the water in the water tank 25, electro connecting pressure gauge 21 is set in water supply line V, from two the hydraulic oil ports of the hydraulic oil of two-way oil transportation channel II dispensing at high pressure turbocharger 15, promote the big piston to-and-fro movement in the high pressure turbocharger low pressure (LP) cylinder, big piston drives the valve piston motion in the ultra-high pressure cylinder that fuses with it, thereby generation high-pressure water, and the outlet of the UHV (ultra-high voltage) by high pressure turbocharger 15 and UHV (ultra-high voltage) joint 28 are sent to test specimen, at the top of water tank 25 water tank air cleaner 24 is installed, consistent with the guard box internal gas pressure with atmospheric pressure.
The UHV (ultra-high voltage) release is to be pressure source with the test specimen, opens UHV (ultra-high voltage) discharge channel III by the controlled pressure-release valve 19 of two-position-five-way solenoid valve 20 controls and finishes controlled release.
Data acquisition control system mainly contains two functions, and the first comprises the start and stop of main oil pump 3, the functions such as commutation, overpressure protection and warning of three position four-way directional control valve 11 by the running and the action of all parts in computing machine 30 and switch board 29 control system; It two is the acquisition and recording and the curve display of test figure, comprises time, pressure, cycle index, pressure-time curve etc.In hydraulic system, adopt the variable fuel system with main oil pump motor group 3, can be before test as requested the pressure cycling frequency rotating speed of regulating drive motor by frequency converter change delivery rate.The working pressure of system is by 8 controls of oil supply pipe surplus valve.
In concrete the enforcement, it be main controlling element that data acquisition control system adopts Programmable Logic Controller (PLC), can the minimizing system in the joint quantity of electric wire, the increase system reliability; Simultaneously, can change its control function, be convenient to the expansion of systemic-function, increase the dirigibility of system by the change control program.
For data acquisition and recording section, the data acquisition mouth of four passages is set in the system altogether, one of them passage is used to gather hydraulic system working pressure and UHV (ultra-high voltage) part working pressure, a passage is used to gather the strain signal that strain transducer is measured, two other passage temporarily is used for backup, waits for later expansion.
Native system can be realized four kinds of duties:
1, boosts and once finish, unload and be depressed into 0 torture test duty;
2, boost and once finish, release is not 0 torture test duty;
3, repeatedly finish and boost, unload and be depressed into 0 torture test duty;
4, repeatedly finish and boost, release is not 0 torture test duty.
The systems technology parameter
Design pressure: 420MPa
Continuous maximum output pressure: 414MPa
UHV (ultra-high voltage) section pressure cycling amplitude: 0～350MPa
High pressure cylinder diameter: 22.23mm
Low pressure (LP) cylinder diameter: 101.6mm
Range: 114.3mm
Theoretical delivery rate: the 44.36cm of single stroke
3
Theoretical pressure ratio (high and low pressure cylinder ram area ratio): 1: 20
Maximum pressure cycle frequency: 20 times/min (adjustable)
Groundwork state: four kinds
Extra high voltage system medium: clean water
Hydraulic system's media: N46 machinery oil
Hydraulic system maximum working pressure (MOP): 21MPa
Hydraulic system maximum flow: 25L/min
Claims (2)
1.350MPa the UHV (ultra-high voltage) fatigue test system is made of hydraulic system, extra high voltage system and data acquisition control system, it is characterized in that:
Described hydraulic system is a power source with main oil pump motor group (3), by main oil supply pipe (I), series connection in regular turn be arranged on high pressure filter (4) in the main oil supply pipe (I), oil feed non-return valve (10) and the alternation of three position four-way directional control valve (11) formation two-way, for described extra high voltage system provides the two-way oil transportation channel (II) of pressure source, each road flow speed control valve (13) is set respectively in the two-way oil transportation channel (II) of described alternation; Discharge channel in the described hydraulic system (IV) is made of described flow speed control valve (13), three-position four-way valve (11), two position three-way valve (12), discharge channel surplus valve (9) and air cooler (26);
Described extra high voltage system provides the work water source of supercharger (15) with centrifugal water pump (23), series connection is provided with filtrator (22) in the supply channel (V) that inserts supercharger (15), and series connection is provided with UHV (ultra-high voltage) tensimeter (16), safety valve (17) and UHV (ultra-high voltage) joint (28) in regular turn in UHV (ultra-high voltage) outlet pipeline (VI); Controlled pressure-release valve (19) and two-position-five-way solenoid valve (20) are set in the UHV (ultra-high voltage) discharge channel (III) in described extra high voltage system;
Described data acquisition control system is a signal detection device with the thermopair (27) that is arranged on the UHV (ultra-high voltage) pressure transducer (18) in the UHV (ultra-high voltage) outlet pipeline (VI) and be arranged in the hydraulic reservoir (1).
2. 350MPa UHV (ultra-high voltage) fatigue test system according to claim 1 is characterized in that in described main oil supply pipe (I) oil circuit tensimeter (6) and oil circuit pressure transducer (7) are as the monitoring element of system works pressure simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200412420U CN201069424Y (en) | 2007-08-01 | 2007-08-01 | 350MPa ultra-high pressure fatigue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200412420U CN201069424Y (en) | 2007-08-01 | 2007-08-01 | 350MPa ultra-high pressure fatigue test system |
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| Publication Number | Publication Date |
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| CN201069424Y true CN201069424Y (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200412420U Expired - Fee Related CN201069424Y (en) | 2007-08-01 | 2007-08-01 | 350MPa ultra-high pressure fatigue test system |
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| CN (1) | CN201069424Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410961A (en) * | 2011-08-10 | 2012-04-11 | 巩宁峰 | Gas cylinder detection system |
| CN102564860A (en) * | 2012-01-11 | 2012-07-11 | 南京林业大学 | Rotating joint durability testing principle and full-automatic testing machine |
| CN103016456A (en) * | 2011-09-22 | 2013-04-03 | 迪尔公司 | Multi-pump system with pump-flow diversion |
| CN103149001A (en) * | 2011-12-06 | 2013-06-12 | 沈阳特种设备检测研究院 | Multifunctional gas bottle function and manipulation test detection system |
| CN103591085A (en) * | 2013-11-28 | 2014-02-19 | 徐州徐工液压件有限公司 | Full-hydrodynamic performance testing device for central swivel joint |
| CN103994126A (en) * | 2014-04-03 | 2014-08-20 | 北京工业大学 | Test method for open type seawater hydraulic system in deep sea simulation environment |
| CN105510014A (en) * | 2015-12-23 | 2016-04-20 | 广州东塑石油钻采专用设备有限公司 | Pressure test device |
| CN105570211A (en) * | 2015-12-25 | 2016-05-11 | 上海华龙测试仪器股份有限公司 | Controlling system for high-pressure oil source |
| CN112660418A (en) * | 2020-12-29 | 2021-04-16 | 中国航空工业集团公司西安飞机设计研究所 | Micro-air-pressure pressurizing safety protection device for small aircraft fuel tank |
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- 2007-08-01 CN CNU2007200412420U patent/CN201069424Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410961B (en) * | 2011-08-10 | 2014-08-27 | 巩宁峰 | Gas cylinder detection system |
| CN102410961A (en) * | 2011-08-10 | 2012-04-11 | 巩宁峰 | Gas cylinder detection system |
| CN103016456B (en) * | 2011-09-22 | 2016-12-21 | 迪尔公司 | There is the multiple pump of pump discharge diverter |
| CN103016456A (en) * | 2011-09-22 | 2013-04-03 | 迪尔公司 | Multi-pump system with pump-flow diversion |
| CN103149001A (en) * | 2011-12-06 | 2013-06-12 | 沈阳特种设备检测研究院 | Multifunctional gas bottle function and manipulation test detection system |
| CN102564860A (en) * | 2012-01-11 | 2012-07-11 | 南京林业大学 | Rotating joint durability testing principle and full-automatic testing machine |
| CN103591085A (en) * | 2013-11-28 | 2014-02-19 | 徐州徐工液压件有限公司 | Full-hydrodynamic performance testing device for central swivel joint |
| CN103994126A (en) * | 2014-04-03 | 2014-08-20 | 北京工业大学 | Test method for open type seawater hydraulic system in deep sea simulation environment |
| CN105510014A (en) * | 2015-12-23 | 2016-04-20 | 广州东塑石油钻采专用设备有限公司 | Pressure test device |
| CN105570211A (en) * | 2015-12-25 | 2016-05-11 | 上海华龙测试仪器股份有限公司 | Controlling system for high-pressure oil source |
| CN105570211B (en) * | 2015-12-25 | 2017-06-23 | 上海华龙测试仪器股份有限公司 | A kind of high pressure fuel source control system |
| CN112660418A (en) * | 2020-12-29 | 2021-04-16 | 中国航空工业集团公司西安飞机设计研究所 | Micro-air-pressure pressurizing safety protection device for small aircraft fuel tank |
| CN112660418B (en) * | 2020-12-29 | 2022-09-20 | 中国航空工业集团公司西安飞机设计研究所 | Micro-air-pressure pressurizing safety protection device for small aircraft fuel tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: pressure vessel Testing Station of Hefei General Machinery Research Institute Assignor: Hefei Universal Machinery Inst. Contract record no.: 2011340000064 Denomination of utility model: 350MPa ultra-high pressure fatigue test system Granted publication date: 20080604 License type: Exclusive License Record date: 20110628 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20130801 |