CN104165735A - Complete equipment for airtightness test of gas cylinder - Google Patents
Complete equipment for airtightness test of gas cylinder Download PDFInfo
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- CN104165735A CN104165735A CN201410266895.3A CN201410266895A CN104165735A CN 104165735 A CN104165735 A CN 104165735A CN 201410266895 A CN201410266895 A CN 201410266895A CN 104165735 A CN104165735 A CN 104165735A
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Abstract
The complete equipment for an airtightness test of a gas cylinder includes a test device, a data acquisition device, and a remote monitoring system. The test device includes a gas compressor, an inflation main pipe, inflation branch pipes, a detection pool and a conveyor belt, the inflation main pipe is connected with an exhaust vent of the gas compressor, and the inflation branch pipes are side by side and vertically connected with the inflation main pipe; the data acquisition device includes a pressure sensor, a pressure transmitter, an industrial camera, a camera support and an acquisition all-in-one machine, the acquisition all-in-one machine is internally provided with an analog quantity acquisition module and an industrial personal computer, the pressure sensor is installed on the inflation main pipe by adopting a welding method, the analog quantity acquisition module and the industrial personal computer adopt serial communication, the pressure sensor is connected with the pressure transmitter, the pressure transmitter is connected with the analog quantity acquisition module in the acquisition all-in-one machine, the industrial camera is connected with the industrial personal computer in the acquisition all-in-one machine, and the industrial personal computer is internally equipped with data monitoring software; and the remote monitoring system includes a remote server and a supervision and inspection software platform, the remote server is connected with the acquisition all-in-one machine through a network, and the supervision and inspection software platform is deployed on the remote server.
Description
Technical field
The present invention relates to a kind of gas cylinder air-tight test complete equipment, relate in particular to and utilize computer vision, sensor technology to adopt bowssening to carry out the complete equipment of air-tight test to gas cylinder.
Background technology
In recent years, gas cylinder manufacturing enterprise increases year by year, gas cylinder output also constantly increases, in order to improve Check and Inspection efficiency in process of production, researcher, slip-stick artist have developed various Check and Inspection systems, equipment or device each test stage for gas cylinder production run both at home and abroad, as online hardness detection system, online ultrasonic testing system, robotization hydraulic pressure outside measurement method pilot system etc., these systems or device have reduced the impact of human factor on testing result, effectively raise detection efficiency, accuracy rate and have reduced production cost.
Gas cylinder is often referred to seamless steel gas cylinder, welded gas cylinder, aluminium alloy seamless gas cylinder and winding gas cylinder, and its test mainly comprises the hydraulic testing and two kinds of methods of air-tight test.The method that the hydraulic testing adopts national standard " GB/T9251-2011 gas cylinder by hydrostatic pressure test method " to describe is conventionally carried out, comprise outside measurement method (water jacket determination method) and internal test method (direct expansion method), be mainly used in measuring the Volume variation (permanent volumetric expansion after elastic volumetric expansion and release) that gas cylinder produces under hydraulic test pressure.The method that air-tight test adopts national standard " GB/T12137-2002 gas cylinder airtightness testing method " to describe is conventionally carried out, comprise bowssening and masking liquid method, bowssening refers to the trial jar that is subject to that is filled with authorised pressure gas is immersed in tank to check its bubble-tight test method, it is applicable to be subject to the air-tight test of trial jar entirety or part, masking liquid method refers on the position to be checked that is subject to trial jar that is filled with authorised pressure gas and is coated with inspection liquid, to check the bubble-tight test method in this place, it is applicable to be subject to trial jar cylinder valve connection of thread, cylinder valve valve rod place, cylinder valve side joint mouth, the air-tight test at fusible plug or other positions of gas cylinder.
Experts and scholars have launched primary study mainly for correlation technique and the device of the hydraulic testing both at home and abroad at present, if the U.S. is as maximum in the world gas cylinder producing country and use state, its bottle hydraulic pressure testing device has represented the development level of current bottle hydraulic pressure testing device, after the nineties, part producing producer has developed computer-controlled bottle hydraulic pressure testing device.The development of China's bottle hydraulic pressure testing device lags behind gas cylinder development always, along with the development of infotech, and the domestic development that also starts Automated water compression testing device.Zhao Zhigang (East China University of Science, 2008) year has been analyzed present situation and the feature of domestic and international bottle hydraulic pressure testing device, press GB/T9251-1997 " gas cylinder by hydrostatic pressure test method ", the related request of GB15385-94 " gas cylinder hydraulic bursting test method " and CGAC-1 " hydraulic test method of pressure gas gas cylinder " is developed a set of computer-controlled gas cylinder outside measurement method and explosion bulge test device, this device has designed gas cylinder outside measurement method and the explosion water test unit taking computer control and signals collecting as core, adopt host computer and the next PLC to realize distributed two-stage control mode, utilize VB6.0 on WindowsXP platform, to develop a set of OO visualized data acquisition software, realize pressure signal, the collection of water yield signal, show and process, and the generation of hydraulic testing report, amendment and output.Yellow hat worn by a Taoist priest space (East China University of Science, 2008) etc. has been developed the high pressure vessel hydraulic testing radio short network communication system based on IEEE802.15.4/ZigBee technology, has mainly realized the short-distance radio collection of on-the-spot hydraulic testing related data.Zhu Jiahua (East China University of Science, 2011) etc. the bottle hydraulic pressure testing device based on machine vision technique has been launched to research, this device mainly detects based on image method the volume change that gas cylinder produces due to pressure, and measuring process is dry type measurement contactless.Yang Xiaoxin (Xinjiang University, 2011) design developed the steel bottle filled with compressed natural gas hydraulic testing supervisory system based on configuration software MCGS such as, the collection, man-machine interface, real time process flow animation that has realized steel bottle filled with compressed natural gas hydraulic testing field data show, in real time and the function such as historical data demonstration, report output, avoid a large amount of manual operation at hydraulic testing scene, reduce and detected workman's labour intensity and the danger of detection, improved detection efficiency.Mu Xiaoge (Xinjiang University, 2011) etc. has developed cylinder water pressure experiment check data automatic collecting system, is mainly used in the data such as Real-time Collection inspection pressure, temperature.The development of above-mentioned automation equipment, greatly reduce on-site manual operation, risk factor and the working strength of the hydraulic testing are reduced, improve testing efficiency, saved gas cylinder detection time, thereby reduced the inconvenience that gas cylinder periodic inspection brings, loaded down with trivial details and the error of manually filling in a form simultaneously, reduced the workload that assay is arranged and preserved, and testing result stores with the database table that meets industry standard specification, information memory capacity increases greatly.
Air-tight test is completely different from ultimate principle and the test item of the hydraulic testing, and therefore, above-mentioned aut.eq. is also inapplicable in air-tight test.Domesticly aspect the research of air-tight test automation equipment, also making some progress.Wang Weijun (Shanghai University, 2008) (a kind of novel airtight test device [J]. machine design and manufacture, 2008 (5): 196-198) etc. developed a kind of novel airtight test device, adopt PLC to control Self-pressurizing agri and change and automatically judge whether gas leakage according to the pressure that pressure transducer detects little air chamber, be subject to trial jar to trigger camera to take pictures, be a kind of direct press type detection method for gas leakage.Yuan Hailin (design and the realization [D] of the airtight signal detecting system of controlling based on PLC.Chengdu: Chengdu University of Technology, 2013) develop equally a set of direct press type air tightness detection system.Wu Chunlong (air-tightness detection device research and design [D] based on machine vision.Hangzhou: Institutes Of Technology Of Zhejiang, 2013) design and develop a set of tightness test device for air compressor's bottle, essence is bowssening, bubble wherein detects and adopts the method for computer vision to carry out.
The air-tight test of current domestic most gas cylinder manufacturer still adopts traditional bowssening, this method is simple to operate, cost is low, but, it exists obvious deficiency, first, manufacturer's process of the test adopts agreement by piece conventionally, workman takes remuneration often to lack inspection or undetected for more, simultaneously in order to reduce costs, when air-tight test, exist test pressure not reach the situation of standard-required or dwell time deficiency, existence causes security-hidden trouble, for avoiding the appearance of this situation, current common way is the inspection of prison in factory, by special equipment inspection body, the prison inspection of gas cylinder is adopted to patrol and examine with the mode of inspecting by random samples in production scene conventionally and carry out, and in the time providing survey report, be difficult to check few inspection and undetected situation.Gas cylinder air-tight test is implemented voluntarily in manufacturer conventionally, carries out supervision and inspection by special equipment inspection body.The reasons for the above problems just current automatic detection device are systems independently, lack the automatic collection to correlation parameter in production run and the effective supervision to human factor.
The problem existing in view of the importance of gas cylinder air-tight test and in order to solve above-mentioned prison inspection process, invent a kind of gas cylinder air-tight test complete equipment based on computer vision and sensor technology, the quality safety that not only contributes to improve the checkability of enterprise and ensure steel cylinder, realize the wisdom of prison inspection, and contribute to reduce gas cylinder production prison inspection cost and improve special equipment and produce inspection efficiency and the level of supervising, there is important popularization demonstration effect for implementing special equipment wisdom prison cubing.
Summary of the invention
For overcome in existing pick-up unit, exist cannot supervise the problems such as few leak detection inspection, understressed, the invention provides a kind of gas cylinder air-tight test complete equipment.
For the technical scheme that solves the problems of the technologies described above employing is:
A kind of gas cylinder air-tight test complete equipment, comprise test unit, data collector, long distance control system, wherein, described test unit comprises gas compressor, inflation supervisor, inflation arm, detects pond and travelling belt, inflation supervisor be connected with gas compressor vent port, an inflation tube side-by-side and inflation vertical being connected of supervisor, described data collector comprises pressure transducer, pressure unit, industry camera, camera bracket and collection all-in-one, gather the built-in analogue collection module of all-in-one and industrial computer, pressure transducer adopts welding manner to be arranged on inflation supervisor, analogue collection module and industrial computer adopt serial communication, pressure transducer is connected with pressure unit, pressure unit is connected with the analogue collection module gathering in all-in-one, camera bracket is placed in and detects top, pond, industry camera is arranged on camera bracket, the camera lens of industry camera is towards detecting pond, industry camera is connected with the industrial computer gathering in all-in-one, gather all-in-one software interface is provided, can input alternately workman's job number, whether tested gas cylinder numbering and tested gas cylinder there is bubble in process of the test, the built-in data monitoring software of industrial computer, described long distance control system comprises remote server and prison inspection software platform, remote server is connected by network with collection all-in-one, prison inspection software platform is deployed on remote server, supervise inspection software platform and adopt B/S framework, computer and smart mobile phone utilize browser to examine average test pressure, workman's job number, trial image, certain section of interior gas cylinder quantity, pressurize qualification rate, the stand the test rate of testing of time in software platform access gas cylinder numbering, dwell time, pressurize start time, dwell time by prison.
The built-in built-in data monitoring software of industrial computer of described collection all-in-one is used for Real-time Collection test pressure and trial image, and concrete steps are as follows:
(1) each test is one group, and one group has only tested gas cylinder of n, workman by n only tested gas cylinder be placed to and detect pond from travelling belt in order, then on all-in-one software interface, input only tested gas cylinder numbering of this n, 1≤n≤15 gathering;
(2) data monitoring software collects test pressure by pressure transducer, pressure unit and analogue collection module, to trial image, provide following method to realize the synchronous acquisition between test pressure and trial image by industrial camera collection simultaneously:
(2.1) obtain test pressure from initial value P by demarcation
0be loaded into test rated pressure value P
maxbe T second needed pressing time, and it is also from rated pressure value P
maxbe unloaded to initial value P
0the needed release time;
(2.2) data monitoring software gathers single test pressure by pressure transducer respectively and by trial image of industrial camera collection with polling mode every δ second, the times of collection within any T second is K=Round (T/ δ), and Round represents round function;
(2.3) make K pressure data in t moment and T second above thereof be
Corresponding trial image is
Adopt least square method to point set
carry out fitting a straight line, obtain its slope λ;
(2.4) if ε < λ and
the n that represents this group only tested gas cylinder starts to load successfully, and t is now recorded as to the time that this air-tight test pressurize starts; If 0≤| λ |≤ε and
the n that represents this group only tested gas cylinder is in packing state; If 0≤| λ |≤ε and
represent that air-tight test is in free time; If λ < 0 and | λ | < ε and
the n that represents this group only air-tight test of tested gas cylinder completes, and has completed release, and t-T is now recorded as to the time that this air-tight test pressurize finishes; In foregoing description, ε, ρ are prior selected threshold value, ε ∈ (0,0.2], ρ ∈ (0,20%];
(2.5), according to above-mentioned determination methods, suppose in data acquisition sequence t
1for the time that certain test pressurize starts, t
2for the time that this air-tight test completes, B=t
2-T-t
1for the dwell time, make M=Round (B/ δ) represent the quantity of data acquisition sequence, the trial image sequence in the dwell time is
test pressure sequence in dwell time is
wherein k represents from t
1to t
2the trial image collecting between-T and test pressure sequence number, r
krepresent t
1to t
2the time of k collection point between-T, meet r
k+1=r
k+ δ, r
1=t
1;
(2.6) in process of the test, workman judges by observation whether every tested gas cylinder produces bubble, if there is Bubble formation, represents that test is defective, otherwise, represent stand the test;
(2.7) when this group air-tight test completes, by n gas cylinder numbering, dwell time B, pressurize start time t
1, average test pressure P in the dwell time
b, workman's job number, trial image
the whether qualified result of the test that workman observes is saved in database, wherein
(2.8) if B>=B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is that pressurize is qualified; If B < is B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is dwell time deficiency; If B>=B
0and
this test is pressurize deficiency; If B < is B
0and
this test is dwell time and all deficiencies of pressure, and it is defective that wherein rear three kinds of situations are pressurize, B
0for the minimum time that air-tight test is selected in advance, B
0>=60 seconds.
Technical conceive of the present invention is: invented a kind of gas cylinder air-tight test complete equipment, it utilizes sensor to complete the collection of test pressure data and utilizes industrial camera to complete the collection of trial image, and adopt certain method to realize the synchronous of the two, further adopt frame difference method to realize bubble-tight judgement, finally adopt the prison inspection software platform of B/S structure to monitor in real time testing ground.
Beneficial effect of the present invention has been realized the Real-time Collection of pressure data and view data in process of the test for: the air tightness test device for gas cylinder of inventing, can realize the real-time monitoring of testing ground, can apply for work certificate book to special equipment Jian Jian mechanism in enterprise again time, special equipment Jian Jian mechanism can examine software platform by prison and the process of the test of applied for product be carried out to playback inquiry to verify whether its air-tight test normally carries out, whether qualified, the quality safety that this not only contributes to improve the checkability of enterprise and ensures steel cylinder, realize the wisdom of prison inspection, and contribute to reduce gas cylinder production prison inspection cost and improve special equipment and produce inspection efficiency and the level of supervising, there is important popularization demonstration effect for implementing special equipment wisdom prison cubing.
Brief description of the drawings
Fig. 1 is gas cylinder air-tight test complete equipment structural drawing of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to cut-open view
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed.Should be appreciated that specific embodiment described herein, only for explaining the present invention, is not intended to limit the present invention.
With reference to Fig. 1, a kind of gas cylinder air-tight test complete equipment, comprise test unit, data collector, long distance control system, as shown in Figure 1, test unit is made up of gas compressor 14, inflation supervisor 11, inflation arm 10, detection pond 5, inflation supervisor 11 is connected with the vent port of gas compressor 14, and inflation arm 10 was responsible for for 11 vertical being connected with inflation side by side, data collector comprises pressure transducer 12, pressure unit 13, industry camera 6, camera bracket 15 and collection all-in-one 1, gather the built-in analogue collection module of all-in-one 1 and industrial computer, pressure transducer 12 adopts welding manner to be arranged on inflation supervisor 11, analogue collection module and industrial computer adopt serial communication, pressure transducer 12 adopts data line 2 to be connected with pressure unit 13, pressure unit 13 is connected with the analogue collection module gathering in all-in-one 1, camera bracket 15 is placed in and detects 5 tops, pond, industry camera 6 is arranged on camera bracket 15, the camera lens of industry camera 6 is towards detecting pond 5, industry camera 6 is connected with the industrial computer gathering in all-in-one 1, gather all-in-one software interface is provided, can input alternately workman's job number, whether tested gas cylinder numbering and tested gas cylinder there is bubble in process of the test, the built-in data monitoring software of industrial computer, long distance control system comprises remote server 7 and prison inspection software platform, remote server 7 is connected by network with collection all-in-one 1, prison inspection software platform is deployed on remote server 7, supervise inspection software platform and adopt B/S structure, computer and smart mobile phone utilize browser to examine average test pressure, workman's job number, trial image, certain section of interior gas cylinder quantity, pressurize qualification rate, the stand the test rate of testing of time in software platform access gas cylinder numbering, dwell time, pressurize start time, dwell time by prison.
The built-in built-in data monitoring software of industrial computer of described collection all-in-one is used for Real-time Collection test pressure and trial image, and concrete steps are as follows:
(1) each test is one group, and one group has only tested gas cylinder of n, workman by n only tested gas cylinder be placed to and detect pond from travelling belt in order, then on collection all-in-one software interface, input only tested gas cylinder numbering of this n, 1≤n≤15, in the present embodiment, n=10;
(2) data monitoring software collects test pressure by pressure transducer, pressure unit and analogue collection module, to trial image, provide following method to realize the synchronous acquisition between test pressure and trial image by industrial camera collection simultaneously:
(2.1) obtain test pressure from initial value P by demarcation
0be loaded into test rated pressure value P
maxbe T second needed pressing time, and it is also from rated pressure value P
maxbe unloaded to initial value P
0the needed release time;
(2.2) data monitoring software gathers single test pressure by pressure transducer respectively and by trial image of industrial camera collection with polling mode every δ second, the times of collection within any T second is K=Round (T/ δ), and Round represents round function;
(2.3) make K pressure data in t moment and T second above thereof be
Corresponding trial image is
Adopt least square method to point set
carry out fitting a straight line, obtain its slope λ;
(2.4) if ε < λ and
the n that represents this group only tested gas cylinder starts to load successfully, and t is now recorded as to the time that this air-tight test pressurize starts; If 0≤| λ |≤ε and
the n that represents this group only tested gas cylinder is in packing state; If 0≤| λ |≤ε and
represent that air-tight test is in free time; If λ < 0 and | λ | < ε and
the n that represents this group only air-tight test of tested gas cylinder completes, and has completed release, and t-T is now recorded as to the time that this air-tight test pressurize finishes; In foregoing description, ε, ρ are prior selected threshold value, ε ∈ (0,0.2], and ρ ∈ (0,20%], in the present embodiment, ε=0.1, ρ=0.1;
(2.5), according to above-mentioned determination methods, suppose in data acquisition sequence t
1for the time that certain test pressurize starts, t
2for the time that this air-tight test completes, B=t
2-T-t
1for the dwell time, make M=Round (B/ δ) represent the quantity of data acquisition sequence, the trial image sequence in the dwell time is
test pressure sequence in dwell time is
wherein k represents from t
1to t
2the trial image collecting between-T and test pressure sequence number, r
krepresent t
1to t
2the time of k collection point between-T, meet r
k+1=r
k+ δ, r
1=t
1;
(2.6) in process of the test, workman judges by observation whether every tested gas cylinder produces bubble, if there is Bubble formation, represents that test is defective, otherwise, represent stand the test;
(2.7) when this group air-tight test completes, by n gas cylinder numbering, dwell time B, pressurize start time t
1, average test pressure P in the dwell time
b, workman's job number, trial image
, the whether qualified result of test observed of workman is saved in database, wherein
(2.8) if B>=B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is that pressurize is qualified; If B < is B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is dwell time deficiency; If B>=B
0and
this test is pressurize deficiency; If B < is B
0and
this test is dwell time and all deficiencies of pressure, and it is defective that wherein rear three kinds of situations are pressurize, B
0for the minimum time that air-tight test is selected in advance, B
0>=60 seconds, in the present embodiment, B
0=300 seconds.
Implement after the present invention, when enterprise is during to special equipment Jian Jian mechanism application work certificate book, special equipment Jian Jian mechanism can examine software platform by prison, and whether the process of the test of applied for product is carried out to playback inquiry qualified to investigate dwell pressure, dwell time, the test of its air-tight test.
Claims (1)
1. gas cylinder air-tight test complete equipment, are made up of test unit, data collector and long distance control system, it is characterized in that:
Described test unit comprises gas compressor, inflation supervisor, inflation arm, detects pond and travelling belt, and inflation supervisor be connected with gas compressor vent port, an inflation tube side-by-side and inflation vertical being connected of supervisor;
Described data collector comprises pressure transducer, pressure unit, industry camera, camera bracket and collection all-in-one, gather the built-in analogue collection module of all-in-one and industrial computer, pressure transducer adopts welding manner to be arranged on inflation supervisor, analogue collection module and industrial computer adopt serial communication, pressure transducer is connected with pressure unit, pressure unit is connected with the analogue collection module gathering in all-in-one, camera bracket is placed in and detects top, pond, industry camera is arranged on camera bracket, the camera lens of industry camera is towards detecting pond, industry camera is connected with the industrial computer gathering in all-in-one, gather all-in-one software interface is provided, can input alternately workman's job number, whether tested gas cylinder numbering and tested gas cylinder there is bubble in process of the test, the built-in data monitoring software of industrial computer, this data monitoring software acquisition test pressure and trial image as follows:
(1) each test is one group, and one group has only tested gas cylinder of n, workman by n only tested gas cylinder be placed to and detect pond from travelling belt in order, then on all-in-one software interface, input only tested gas cylinder numbering of this n, 1≤n≤15 gathering;
(2) data monitoring software collects test pressure by pressure transducer, pressure unit and analogue collection module, to trial image, provide following method to realize the synchronous acquisition between test pressure and trial image by industrial camera collection simultaneously:
(2.1) obtain test pressure from initial value P by demarcation
0be loaded into test rated pressure value P
maxbe T second needed pressing time, and it is also from rated pressure value P
maxbe unloaded to initial value P
0the needed release time;
(2.2) data monitoring software gathers single test pressure by pressure transducer respectively and by trial image of industrial camera collection with polling mode every δ second, the times of collection within any T second is K=Round (T/ δ), and Round represents round function;
(2.3) make K pressure data in t moment and T second above thereof be
Corresponding trial image is
Adopt least square method to point set
carry out fitting a straight line, obtain its slope λ;
(2.4) if ε < λ and
the n that represents this group only tested gas cylinder starts to load successfully, and t is now recorded as to the time that this air-tight test pressurize starts; If 0≤| λ |≤ε and
the n that represents this group only tested gas cylinder is in packing state; If 0≤| λ |≤ε and
represent that air-tight test is in free time; If λ < 0 and | λ | < ε and
the n that represents this group only air-tight test of tested gas cylinder completes, and has completed release, and t-T is now recorded as to the time that this air-tight test pressurize finishes; In foregoing description, ε, ρ are prior selected threshold value, ε ∈ (0,0.2], ρ ∈ (0,20%];
(2.5), according to above-mentioned determination methods, suppose in data acquisition sequence t
1for the time that certain test pressurize starts, t
2for the time that this air-tight test completes, B=t
2-T-t
1for the dwell time, make M=Round (B/ δ) represent the quantity of data acquisition sequence, the trial image sequence in the dwell time is
test pressure sequence in dwell time is
wherein k represents from t
1to t
2the trial image collecting between-T and test pressure sequence number, r
krepresent t
1to t
2the time of k collection point between-T, meet r
k+1=r
k+ δ, r
1=t
1;
(2.6) in process of the test, workman judges by observation whether every tested gas cylinder produces bubble, if there is Bubble formation, represents that test is defective, otherwise, represent stand the test;
(2.7) when this group air-tight test completes, by n gas cylinder numbering, dwell time B, pressurize start time t
1, average test pressure P in the dwell time
b, workman's job number, trial image
the whether qualified result of the test that workman observes is saved in database, wherein
(2.8) if B>=B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is that pressurize is qualified; If B < is B
0and P
b∈ [0.8*P
max, 1.2*P
max], this test is dwell time deficiency; If B>=B
0and
this test is pressurize deficiency; If B < is B
0and
this test is dwell time and all deficiencies of pressure, and it is defective that wherein rear three kinds of situations are pressurize, B
0for the minimum time that air-tight test is selected in advance, B
0>=60 seconds;
Described long distance control system comprises remote server and prison inspection software platform, remote server is connected by network with collection all-in-one, prison inspection software platform is deployed on remote server, prison inspection software platform adopts B/S structure, computer and smart mobile phone utilize browser by prison examine that software platform is accessed gas cylinder numbering, test pressure, dwell time, test initial time, whether leaked gas, workman's job number, the same day are tested gas cylinder quantity, qualification rate, testing ground image.
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| CN109883817A (en) * | 2019-04-28 | 2019-06-14 | 杭州市特种设备检测研究院 | Remote supervisory checking system for pressure container pressure resistance test |
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| CN105445109A (en) * | 2015-12-22 | 2016-03-30 | 长庆石油勘探局技术监测中心 | Carbon fiber gas bottle deformation amount and pressure bearing capacity testing apparatus and carbon fiber gas bottle deformation amount and pressure bearing capacity testing method |
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| CN105547606B (en) * | 2015-12-22 | 2018-08-17 | 长庆石油勘探局技术监测中心 | A kind of carbon fiber gas cylinder air-tightness automatic testing equipment and test method |
| CN105509981A (en) * | 2016-01-16 | 2016-04-20 | 芜湖市海格瑞德科技有限责任公司 | Vehicle low-temperature LNG (Liquefied Natural Gas) horizontal welded insulated cylinder gas detection device and use method |
| CN106017820A (en) * | 2016-06-28 | 2016-10-12 | 广东工业大学 | Detection system and detection method of sealing performance of container |
| CN108507728A (en) * | 2018-06-05 | 2018-09-07 | 陕西博菲特流体控制装备制造有限公司 | A kind of modular heat trace integrated station suppresses test device |
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| CN109520678A (en) * | 2018-12-26 | 2019-03-26 | 浙江工业大学 | A kind of pressure maintaining detection method for pressure vessel air tightness test |
| CN109883817A (en) * | 2019-04-28 | 2019-06-14 | 杭州市特种设备检测研究院 | Remote supervisory checking system for pressure container pressure resistance test |
| CN111060257A (en) * | 2019-12-26 | 2020-04-24 | 中国能源建设集团华东电力试验研究院有限公司 | Air tightness experiment testing device and testing method thereof |
| CN111060257B (en) * | 2019-12-26 | 2024-05-31 | 中国能源建设集团华东电力试验研究院有限公司 | Air tightness experiment testing device and testing method thereof |
| CN116007854A (en) * | 2023-03-24 | 2023-04-25 | 临沂千源包装印刷有限公司 | Detection device for detecting air tightness and pressure resistance of packaging bag |
| CN116007854B (en) * | 2023-03-24 | 2023-06-23 | 临沂千源包装印刷有限公司 | Detection device for detecting air tightness and pressure resistance of packaging bag |
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