CN102410961A - Gas cylinder detection system - Google Patents
Gas cylinder detection system Download PDFInfo
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- CN102410961A CN102410961A CN2011102278997A CN201110227899A CN102410961A CN 102410961 A CN102410961 A CN 102410961A CN 2011102278997 A CN2011102278997 A CN 2011102278997A CN 201110227899 A CN201110227899 A CN 201110227899A CN 102410961 A CN102410961 A CN 102410961A
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 25
- 238000009530 blood pressure measurement Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 abstract 4
- 238000004880 explosion Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a gas cylinder detection system which comprises a control system, a water tank and a weighing balance arranged at the bottom end of the water tank, wherein the water tank is suspended in air and fixed through a support, the weighing balance is fixed on a balance support, a weighing sensor is arranged on the weighing balance, and the sensor is connected with the control system in a communication manner; the control system is respectively connected with an electric control pressure regulating valve, an electromagnetic valve, a two-position three-way electromagnetic valve I, a two-position three-way electromagnetic valve II, a first sensor and a second sensor in a communication manner, one end of the electric control pressure regulating valve is sequentially connected with the electromagnetic valve and a one-way valve I, the other end of the one-way valve I is sequentially connected with a driving pressure gauge, a speed regulating valve I and a speed regulating valve II, the other end of the electric control pressure regulating valve is respectively connected with a filtering pressure regulating valve, the two-position three-way electromagnetic valve I and the two-position three-way electromagnetic valve II, and the two ends of the filtering pressure regulating valve are respectively connected with a driving air interface and a stop valve I. The gas cylinder detection system has the benefits of being convenient in equipment maintenance, being simple and easy to operate and being clean and oilless.
Description
Technical field
The present invention relates to a kind of gas cylinder detection system.
Background technology
The gas cylinder detection system of using in the market, employing be that hydraulic drive cylinder carries out tests such as hydraulic pressure is withstand voltage, tired, explosion to gas cylinder, corrugated tube, power conduit etc., it exists following shortcoming and problem: 1, just simply scattered equipment is connected and starts; There is not systematization, integrated design, control is simple; Function singleness, equipment need manually control, and the manually-operated controlled quentity controlled variable is big; Instability of flow, entire equipment lacks security; 2, the single hydraulic drive cylinder pressure and the flow that can provide is all very limited, can not be used for the test and the explosion of multiple pressure, can not be undertaken by desirable rate of pressurization, can not be adjustable continuously; 3, the unstable often leakage of oil of conventional hydraulic driving cylinder sealing pollutes working environment, safeguards complicated; 4, there is not dedicated test software to support mutually, can not parameter setting, there is not the real-time pressure curve, there is not the early warning before the explosion, there is not the seizure of blow-up point, can not store and be used to the data studied in the explosion bulge test process in a large number; 5, parameters such as yield pressure, inflow, blow-up point, circumferential deflection can not be detected, only burst pressure can be measured.
Summary of the invention
The purpose of this invention is to provide a kind of gas cylinder detection system, just simply scattered equipment is connected and startup, do not have systematization to overcome prior art; Integrated design, control is simple, function singleness; Equipment needs manually control; The manually-operated controlled quentity controlled variable is big, instability of flow, and entire equipment lacks the deficiency of security aspect.
The objective of the invention is to realize through following technical scheme:
A kind of gas cylinder detection system; Comprise control system, water tank and be located at the weigh scale of water tank bottom, water tank is fixed through bracket-suspending, and weigh scale is fixed on the balance support; Weigh scale is provided with LOAD CELLS, and said sensor is communicated by letter with control system and is connected; Said control system is connected with automatically controlled pressure regulator valve, solenoid valve, two-bit triplet electromagnetic valve I, two-bit triplet electromagnetic valve II, first sensor and second sensor communication respectively; One end of automatically controlled pressure regulator valve connects solenoid valve and retaining valve I in order; The other end of retaining valve I connects driving pressure table, flow speed control valve I and flow speed control valve II in order; The other end of automatically controlled pressure regulator valve connects filtration pressure regulator valve, two-bit triplet electromagnetic valve I and two-bit triplet electromagnetic valve II respectively, and the two ends of filtering pressure regulator valve connect drive air interface and stop valve I respectively, and the other end of stop valve I also connects flow speed control valve I and flow speed control valve II; Flow speed control valve I is connected high pressure liquid pump and low pressure liquid pump respectively with flow speed control valve II; The high pressure liquid pump all is connected y-type filter with the low pressure liquid pump, and y-type filter connects the water input interface, and the water input interface connects water tank through pipeline; Said two-bit triplet electromagnetic valve I is connected pneumatic valve I and pneumatic valve II respectively with the two-bit triplet electromagnetic valve II; Pneumatic valve I connects stop valve II, stop valve III and normal pressure release interface respectively; Stop valve II all is connected pneumatic valve II and high pressure input interface with stop valve III; The other end of pneumatic valve II connects high pressure liquid pump and retaining valve II respectively; The other end of retaining valve II connects low pressure liquid pump and safety valve I respectively; The other end of safety valve I connects emergency pressure relief interface and safety valve II respectively, and safety valve II is connected with interconnective first sensor, stop valve IV and first pair of pointer tensimeter, and the other end of stop valve IV is connected with interconnective stop valve V, stop valve VI and pressure measurement interface; The other end of stop valve V connects the simple pointer tensimeter, and the other end of stop valve VI connects interconnective second sensor and second pair of pointer tensimeter; The pressure measurement interface all is connected the test gas cylinder through coil pipe with the high pressure input interface.
Beneficial effect of the present invention is: plant maintenance is convenient, and is simple, and cleaning does not have oil, has protected working environment; Perfect in shape and function; Data are full and accurate precisely, and active data supports for the check of gas cylinder, corrugated tube, power conduit provides more, for finding out the defective factor of this test block; Find out the material that possibly exist, technology, etc. the weak link of many aspects authoritative foundation is provided; Improve product percent of pass, guaranteed outgoing, improved throughput rate; Integrated level is high, and automatization level is high, and everything is ready, and back operating personnel's all operations only needs to carry out at monitoring and control unit, and easy simple to operate has reduced labour intensity, has reduced potential safety hazard; Abandon traditional hydraulic drive cylinder and adopted many air driven pump combinations; Fundamentally for the demand that not only satisfies different pressures but also satisfy the regime flow different time provides guarantee, required rate of pressurization adjustable and ten grades of pressurizations and step-down process control function have also been guaranteed.
Description of drawings
According to accompanying drawing the present invention is done further explain below.
Fig. 1 is the structural representation of the described a kind of gas cylinder detection system of the embodiment of the invention.
Among the figure:
1, control system; 2, water tank; 3, weigh scale; 4, test gas cylinder; 5, automatically controlled pressure regulator valve; 6, solenoid valve; 7, pneumatic valve I; 8, pneumatic valve II; 9, first sensor; 10, second sensor; 11, high pressure liquid pump; 12, low pressure liquid pump; 13, drive air interface; 14, two-bit triplet electromagnetic valve I; 15, two-bit triplet electromagnetic valve II; 16, high pressure input interface; 17, coil pipe; 18, retaining valve I; 19, driving pressure table; 20, flow speed control valve I; 21, flow speed control valve II; 22, filter pressure regulator valve; 23, pressure measurement interface; 24, stop valve I; 25, stop valve II; 26, stop valve III; 27, stop valve IV; 28, stop valve V; 29, stop valve VI; 30, y-type filter; 31, water input interface; 32, normal pressure release interface; 33, second pair of pointer tensimeter; 34, retaining valve II; 35, safety valve I; 36, safety valve II; 37, first pair of pointer tensimeter; 38, emergency pressure relief interface; 39, simple pointer tensimeter.
Embodiment
As shown in Figure 1, the described a kind of gas cylinder detection system of the embodiment of the invention comprises control system 1, water tank 2 and is located at the weigh scale 3 of water tank 2 bottoms that weigh scale 3 is provided with LOAD CELLS, and LOAD CELLS is connected with control system 1 communication; 10 communications are connected said control system 1 with second sensor with automatically controlled pressure regulator valve 5, solenoid valve 6, two-bit triplet electromagnetic valve I 14, two-bit triplet electromagnetic valve II 15, first sensor 9 respectively; One end of automatically controlled pressure regulator valve 5 connects solenoid valve 6 and retaining valve I18 in order; The other end of retaining valve I18 connects driving pressure table 19, flow speed control valve I20 and flow speed control valve II21 in order; The other end of automatically controlled pressure regulator valve 5 connects filtration pressure regulator valve 22, two-bit triplet electromagnetic valve I 14 and two-bit triplet electromagnetic valve II 15 respectively; The two ends of filtering pressure regulator valve 22 connect drive air interface 13 and stop valve I24 respectively; The other end of stop valve I24 also connects flow speed control valve I20 and flow speed control valve II21, and flow speed control valve I20 is connected high pressure liquid pump 11 and low pressure liquid pump 12 respectively with flow speed control valve II21, and high pressure liquid pump 11 all is connected y-type filter 30 with low pressure liquid pump 12; Y-type filter 30 connects water input interface 31, and water input interface 31 connects water tank 2 through pipeline; Said two-bit triplet electromagnetic valve I 14 is connected pneumatic valve I7 and pneumatic valve II8 respectively with two-bit triplet electromagnetic valve II 15; Pneumatic valve I7 connects stop valve II25, stop valve III26 and normal pressure release interface 32 respectively; Stop valve II25 all is connected pneumatic valve II8 and high pressure input interface 16 with stop valve III26; The other end of pneumatic valve II8 connects high pressure liquid pump 11 and retaining valve II34 respectively; The other end of retaining valve II34 connects low pressure liquid pump 12 and safety valve I35 respectively; The other end of safety valve I35 connects emergency pressure relief interface 38 and safety valve II36 respectively, and safety valve II36 is connected with interconnective first sensor 9, stop valve IV27 and first pair of pointer tensimeter 37, and the other end of stop valve IV27 is connected with interconnective stop valve V28, stop valve VI29 and pressure measurement interface 23; The other end of stop valve V28 connects simple pointer tensimeter 39, and the other end of stop valve VI29 connects interconnective second sensor 10 and second pair of pointer tensimeter 33; Pressure measurement interface 11 all is connected test gas cylinder 4 through coil pipe 17 with high pressure input interface 16.
During concrete the use; System's input media is a pure water, is stored in the water tank 2, and the reading through LOAD CELLS on the weigh scale 3 can calculate water consumption; And then can calculate gas cylinder deflection etc.; The various performances of workpiece are assessed, and clean water is drawn by water tank 2 bottoms, inputs to pneumatic pressure charging system through y-type filter 30; The air driven system is the power section of pneumatic pressure charging system; Pressurized air is provided by air compressor machine, and the air driven system inserts this detection system through drive air inlet 13, after the entering detection system; Through filtering pressure regulator valve 22 drive air is further filtered, be decompressed to suitable pressure simultaneously.
When the needs low-pressure charging, only need to start the valve on low pressure liquid pump 12 drive air roads, the valve that need close high pressure liquid pump 11 drive air roads this moment; When the supercharging of needs high pressure, only need to start the valve on high pressure liquid pump 11 drive air roads, the valve that need close low pressure liquid pump 12 drive air roads this moment.Pneumatic pressure charging system outlet is furnished with retaining valve, when preventing high-voltage booster work low-pressure turbocharger is exerted an influence; Safety valve is equipped with in the low-pressure turbocharger outlet, the protection low-pressure section.
The pressure display system is used to show the force value of measured workpiece, is divided into high-pressure section and low-pressure section, separates with valve between the high and low pressure display, in low-pressure section safety valve is housed, and prevents that high-pressure section from leaking to low-pressure section to bring damage; The pressure display system mainly comprises tensimeter and pressure transducer, and tensimeter can be seen force value intuitively, and wherein two pointer tensimeters can also show maximum pressure; Pressure transducer is used to gather force value and is transferred to control system 1.
Control system 1 is by formations such as electric pressure-regulating valve, control electromagnetic valve, pressure transducer (25MPa and 200MPa), pressure digital display instrument, PLC acquisition controlling unit, industrial computer, display, power switch, control knob, plurality of indicator lamps, relay, supply socket, 24V D.C. regulated power supplies.Wherein the function of pilot lamp and button is following:
The system alarm pilot lamp: after system's supercharge pump top hole pressure surpassed the set pressure of software " top pressure ", the system alarm pilot lamp was bright, tells custom system superpressure, is convenient to safety management;
The prompting alarm lamp: when system equipments such as sensor break down or when broken string, the system early warning pilot lamp is bright;
Automatically run indicator: display system is current to be in automatic running status;
System's pressurize run indicator: the current packing state that is in of display system;
System decompression run indicator: the current pressure release state that is in of display system;
Control desk power switch: for the operation of all systems of Monitoring and Controlling platform provides the control power supply;
Emergency stop push button: when being in an emergency in system, it is all out of service to press the whole pressure charging system of this button may command;
Automatic/hand switch: the automatic operational mode or the manual mode of operation that are used for selective system;
High voltage/low voltage switch: be used for the selective system high-voltage value and show that still low voltage value shows;
Hydraulic pressure intensity/fatigue/explosion switch: be used for the different trystate of selective system;
Electric pressure-regulating valve button: under the automatic operational mode of hand, be used for the automatic startup of system;
Supercharge pump button: under manual mode of operation, be used for the independent control of supercharge pump;
Holding pressure control button: under manual mode of operation, be used for the startup of control system pressurize and stop;
Pressure discharge control button: under manual mode of operation, be used for the startup of control system pressure release and stop.
This detection system comprises manually and automatic operation dual mode:
Manually during operation, the startup of system's each several part and stop to be undertaken by startup and stop button on user's control operation platform, step is following:
1) opens the control desk power supply, confirm that pressure digital display instrument, industrial computer and the monitor power supply on the control desk is normal;
2) open computer, operation " Hydrosys hydraulic pressure test system " software;
3) system pressure can show real-time pressure;
4) between access arrangement, tram when confirming that each manually-operated gate has been in work; Confirm that power supply, water source, source of the gas possess;
5) forward the automatic/hand switch to manual position, system's operation gets into manual mode;
6) use high-pressure pump or low-lift pump, the high voltage/low voltage switch is transformed into corresponding pattern;
7) after above condition has all possessed, press " supercharge pump control " button and begin supercharging, as required, press " supercharge pump control " button once more and stop supercharging; In like manner, can use " holding pressure control " button and " pressure discharge control " button to carry out pressurize and pressure release; Press the holding pressure control button, system can carry out pressurize; Press pressure relief press button, system can carry out pressure release;
8) can show real-time pressure and curve display on the computer software interface in the process of the test, also can form report after the off-test, data storage and printed report;
9) behind the end-of-job, system's internal pressure pressure release to 0MPa, is stopped cooling driers and air compressor machine, closing control platform power supply then.
When moving automatically, the operation of system's each several part is undertaken by the program and the parameter of internal system setting; Be supercharge pump startup, stop, the startup of pressurize, pressure release and stop all to be undertaken by the parameter of software setting, its step is following:
1) opens the control desk power supply, confirm that pressure digital display instrument, industrial computer and the monitor power supply on the control desk is normal;
2) open computer, operation " Hydrosys hydraulic pressure test system " software;
3) get into " parameter setting " and be provided with, set the parameter of needs, at first select the test that to carry out, click " selecting test ", after selecting to accomplish, show the test of having selected below at the flow process interface according to different tests; Click " system's setting " again, the entering system is provided with the interface, and test name, specification, material or the like are set, and according to different tests obstructed zone is set again, completion is set after, click " getting back to trystate ";
4) forward the automatic/hand switch to automated location, system's operation gets into automatic mode;
5) forward hydraulic pressure/fatigue/explosion switch to corresponding position, and be consistent on the software;
6) between access arrangement, tram when confirming that each manually-operated gate has been in work; Confirm that power supply, water source, source of the gas possess, workpiece connects;
7) forward manual mode to,, give pipeline and workpiece exhaust with manually suppressing;
8) press electronic Regulation Control button, system will carry out supercharging automatically according to prior setting;
9) rate of pressure rise is by ten grades of adjustings, and from low to high, low-lift pump speed is 3Mpa/min the most approximately, first grade of about 1Mpa/min of high-pressure pump, adjustable-speed;
10) if carry out high-potting; The low pressure sensor detection is pressed onto above can the prompting of 5Mpa and closes low pressure valve, if can detect 20Mpa total system meeting auto stop, and provides prompting; Etc. pending; Can avoid like this forgetting and close low pressure valve or the bad damage low pressure sensor that boosts that also continues of low pressure valve, guarantee that security of system is reliable, avoid causing danger;
11) if carried out the interface switching in the process of the test, returning behind the trystate to retract rate of pressurization again needs speed;
12) wait routine moves automatically, accomplishes up to all programs;
13) report with data after test is accomplished and deposit in addition, also can directly accomplish reporting printing;
14) behind the end-of-job, 0MPa, closing control platform power supply are arrived in system's internal pressure pressure release; Close water source, gas source valve at last.
This detection system has function of safety protection, and is specific as follows:
1) each stage pressure all disposes safety valve in the pneumatic hydraulic pressure pressure charging system internal configurations, can arrive the safety zone by releasing pressure automatically just in case surpass set pressure;
2) adopted coil pipe to link to each other by test specimen with the test macro outlet, the position is away from operator's console;
3) on-the-spot and control desk has emergency stop function, presses the scram button total system with out of service, is used for protection system and the security that improves system;
4) have power-off protection function, system's releasing pressure automatically after the sudden power guarantees the safety of experimenter and equipment to greatest extent;
5) test macro shows experimental state at any time;
6) testing software in the TT&C system is designed with multinomial warning early warning and shows, comprise that the drive air insufficient pressure is reported to the police, quantity of water in water tank is not enough and report to the police, reveal the pressure that causes rise slowly report to the police, the early warning during near explosion.
The important technological parameters table of native system is as follows:
| Drive source of the gas | ? |
| The air compressor machine product form | Double-screw compressor |
| Air capacity | 1.52Nm3/min |
| Maximum discharge pressure | 10bar |
| Gas-holder and filtrator | ? |
| The gas-holder design pressure | 1.0MPa |
| Volume of gas storage tank | 1m 3 |
| Coarse filter filtering accuracy and oil content | 1μm、1ppm |
| Fine filter filtering accuracy and oil content | 0.01μm、0.01ppm |
| Pneumatic pressure charging system | ? |
| Be suitable for compressed media | Clean water |
| The driving gas medium | Pressurized air |
| Criteria for noise | ≤70db |
| The drive air input pressure | 0.5~0.9MPa |
| The liquid pump configuration | 2 of high and low pressures |
| Maximum pressure boost | 150MPa |
| Physical dimension | Long 1180mm * wide 1080mm * high 1250mm |
| The drive air inlet | 1/2”FNPT |
| Normal pressure release interface | 3/8”FNPT |
| Water tank capacity | 10L |
| The test(ing) medium temperature | Normal temperature |
| Fatigue, strength test | ? |
| Explosion bulge test | 85℃ |
| The tensimeter precision | 1.0 grades of 0.4 grade of Stromeyer test and explosion experiments |
| Sensor accuracy | ±0.1%F.S. |
| The pressure acquisition frequency | ≥200Hz |
| The deformation measurement accuracy of measurement | ≤±0.5mL |
| The deformation measurement weight range | 0-8L |
| Rate of pressure rise | Adjustable (1MPa/min, 60L gas cylinder: 3MPa/min) |
| Occupation area of equipment | ≤2400×1200mm |
Claims (2)
1. gas cylinder detection system; Comprise control system (1), water tank (2) and be located at the weigh scale (3) of water tank (2) bottom; It is characterized in that: communication is connected said control system (1) with second sensor (10) with automatically controlled pressure regulator valve (5), solenoid valve (6), two-bit triplet electromagnetic valve I (14), two-bit triplet electromagnetic valve II (15), first sensor (9) respectively; One end of automatically controlled pressure regulator valve (5) connects solenoid valve (6) and retaining valve I (18) in order; The other end of retaining valve I (18) connects driving pressure table (19), flow speed control valve I (20) and flow speed control valve II (21) in order; The other end of automatically controlled pressure regulator valve (5) connects filtration pressure regulator valve (22), two-bit triplet electromagnetic valve I (14) and two-bit triplet electromagnetic valve II (15) respectively; The two ends of filtering pressure regulator valve (22) connect drive air interface (13) and stop valve I (24) respectively; The other end of stop valve I (24) also connects flow speed control valve I (20) and flow speed control valve II (21), and flow speed control valve I (20) is connected high pressure liquid pump (11) and low pressure liquid pump (12) respectively with flow speed control valve II (21), and high pressure liquid pump (11) all is connected y-type filter (30) with low pressure liquid pump (12); Y-type filter (30) connects water input interface (31), and water input interface (31) connects water tank (2) through pipeline; Said two-bit triplet electromagnetic valve I (14) is connected pneumatic valve I (7) and pneumatic valve II (8) respectively with two-bit triplet electromagnetic valve II (15); Pneumatic valve I (7) connects stop valve II (25), stop valve III (26) and normal pressure release interface (32) respectively; Stop valve II (25) all is connected pneumatic valve II (8) and high pressure input interface (16) with stop valve III (26); The other end of pneumatic valve II (8) connects high pressure liquid pump (11) and retaining valve II (34) respectively; The other end of retaining valve II (34) connects low pressure liquid pump (12) and safety valve I (35) respectively; The other end of safety valve I (35) connects emergency pressure relief interface (38) and safety valve II (36) respectively; Safety valve II (36) is connected with interconnective first sensor (9), stop valve IV (27) and first pair of pointer tensimeter (37); The other end of stop valve IV (27) is connected with interconnective stop valve V (28), stop valve VI (29) and pressure measurement interface (23); The other end of stop valve V (28) connects simple pointer tensimeter (39), and the other end of stop valve VI (29) connects interconnective second sensor (10) and second pair of pointer tensimeter (33); Pressure measurement interface (23) all is connected test gas cylinder (4) through coil pipe (17) with high pressure input interface (16).
2. gas cylinder detection system according to claim 1; It is characterized in that: water tank (2) is fixed through bracket-suspending; Weigh scale (3) is fixed on the balance support, and weigh scale (3) is provided with LOAD CELLS, and said sensor is connected with control system (1) communication.
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| CN201110227899.7A CN102410961B (en) | 2011-08-10 | 2011-08-10 | Gas cylinder detection system |
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| CN201110227899.7A CN102410961B (en) | 2011-08-10 | 2011-08-10 | Gas cylinder detection system |
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| CN102410961A true CN102410961A (en) | 2012-04-11 |
| CN102410961B CN102410961B (en) | 2014-08-27 |
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Cited By (7)
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| CN104786134A (en) * | 2014-01-17 | 2015-07-22 | 上海华虹宏力半导体制造有限公司 | Device for detecting abnormity of deionized water cleaning valve in semiconductor process technology |
| CN106053242A (en) * | 2016-05-26 | 2016-10-26 | 麦格思维特(上海)流体工程有限公司 | Testing platform capable maintaining high pressure for long time and workpiece testing method |
| CN106919118A (en) * | 2017-04-28 | 2017-07-04 | 淮安信息职业技术学院 | A kind of vehicle gas cylinder hydraulic pressure detects multiple protective controller |
| CN108871709A (en) * | 2018-06-28 | 2018-11-23 | 四川杰特机器有限公司 | A kind of buck-boost rate control system for the water pressure test |
| CN109724781A (en) * | 2017-10-30 | 2019-05-07 | 湖南中车时代电动汽车股份有限公司 | Electric car safety assisting system test-bed |
| 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 |
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| CN106919118A (en) * | 2017-04-28 | 2017-07-04 | 淮安信息职业技术学院 | A kind of vehicle gas cylinder hydraulic pressure detects multiple protective controller |
| CN109724781A (en) * | 2017-10-30 | 2019-05-07 | 湖南中车时代电动汽车股份有限公司 | Electric car safety assisting system test-bed |
| CN108871709A (en) * | 2018-06-28 | 2018-11-23 | 四川杰特机器有限公司 | A kind of buck-boost rate control system for the water pressure test |
| 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 |
| CN114486541A (en) * | 2021-12-28 | 2022-05-13 | 中航天水飞机工业有限责任公司 | Pressure-resistant test and automatic inflation device for high-pressure gas cylinder |
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