CN202735053U - Security evaluation and pressure tester for atomizer can container - Google Patents
Security evaluation and pressure tester for atomizer can container Download PDFInfo
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- CN202735053U CN202735053U CN2012202918372U CN201220291837U CN202735053U CN 202735053 U CN202735053 U CN 202735053U CN 2012202918372 U CN2012202918372 U CN 2012202918372U CN 201220291837 U CN201220291837 U CN 201220291837U CN 202735053 U CN202735053 U CN 202735053U
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Abstract
The utility model relates to a security evaluation and pressure tester for an atomizer can container. A gas source end of a pressure-test gas line is a nitrogen cylinder interface. A rear end of the nitrogen cylinder interface is successively connected with a pressure reduction apparatus, a flow limit valve, a buffer gas cylinder, an electromagnetic current limit valve and one end of a three-way joint. The other two ends of the three-way joint are respectively connected with a digital-telemeter pressure gauge and a fixing atomizer-can detection interface, wherein the digital-telemeter pressure gauge can output 4- 20 mA current signals. The beneficial effects are that the pressure tester for the atomizer can adopts the nitrogen as a test medium to carry out the pressure test for the atomizer can. A computer controls to read pressure gauge data, thereby realizing dynamic feedback and controlling increasing and decreasing of the pressure. Apparatus performance is raised, operation intensity is mitigated and automation degree is greatly raised. The security evaluation and pressure tester has progress in accuracy, security and stability.
Description
Technical field
The utility model relates to the pressure test instrument, particularly a kind of aerosol can class vessel safety evaluation and pressure tester.
Background technology
The aerosol can pressure test is an important indicator of examination aerosol can resistance to pressure.The aerosol can packing only has good resistance to pressure, and leaking of content do not occur in the process of circulation guarantee.
At present, developed country and even Taiwan have quite a few experts and scholars to be engaged in the research work of mental package, related field comprises packing content thing, tank technology, tin graphed sheet technology, detection, assay technique, be about to the Modern New Technology such as computing machine, robotization control and electronic engineering and be applied to the canister packaging industry, and form a cover theory and be used in reference to leading industry, complete teaching material and the training system of a cover arranged.And China lacks expert and the specialized personnel of canister packaging industry, and interior ground enterprise fights separately, and technical very difficult breakthrough is difficult to realize standardization
[8]
For example: abroad, for the standard can type, diel, tank mould processed has all adopted standardized work, and same model mould is general at each can factory, and interchangeability is very strong.And the roller that our slight sealed cans are used just has 1,100 kinds, sample of an enterprise.If as the standard can type, the sealed cans effect will have been had a greatly reduced quality.So, along with expanding economy and technical progress, set up the scientific research mechanism of canister, it is particularly necessary to improve professional level.
Developed country is to the development of spraying tank containers, and production, accumulating, use, management and security performance assessment, control etc. have fairly perfect moulding system
[23] The design production firm of external spraying tank containers often strictly maintains secrecy to the research and development of its critical control point and check by obtaining the forms such as technical patent, trade secret, and we do not have the experience that can directly use for reference, need independent research.
In " international danger advised " the spraying tank containers is stipulated, but the requirement of just with the form of laws and regulations the performance proposition of packing being correlated with, and do not provide the concrete physicochemical property that guarantees to reach the required material of requirement performance index and all kinds of materials
[6] Aerosol can class vessel safety performance detection apparatus is original simple and crude, does not realize the robotization of the aspects such as operation, data, all adopts manual operations, artificial reading, record, deal with data, and labour intensity is large, and test accuracy is lower, and speed is very slow.
Therefore, how to address this problem and just become the problem that those skilled in the art will study and solve.
Summary of the invention
The purpose of this utility model is exactly the deficiency that exists for prior art, a kind of novel the vessel safety evaluation of aerosol can class and pressure tester design proposal are provided, adopt nitrogen as test(ing) medium aerosol can be carried out pressure test, read the tensimeter data by computer control, realize dynamic feedback, the controlled pressure increase and decrease, make product improve instrument performance, alleviate working strength, with in the past manually-operated, visual inspection, the check system of judging by experience changes sequencing into, standardized check system, greatly improve automaticity, reduce cost of labor, improve checkability.
The utility model is to realize by such technical scheme: the vessel safety evaluation of aerosol can class and pressure tester, comprise pressure test gas circuit and test circuit, it is characterized in that, the source of the gas end of pressure test gas circuit is the nitrogen cylinder interface, nitrogen cylinder interface rear end connects an end of reliever, flow-limiting valve, buffering gas cylinder, electromagnetic current limiting valve and three-way connection successively, the in addition two ends of three-way connection connect respectively the digital telemetering tensimeter of exportable 4-20mA current signal and fixedly aerosol can detect interface;
Described test circuit comprises digital telemetering tensimeter, signal transmitting device, computing machine and printer, the manometric 4-20mA current signal output end of digital telemetering connects the input end of signal transmitting device, the output terminal of signal transmitting device is connected with the RS232 communication interface of computing machine, and computing machine is connected with printer.
Described signal transmitting device is comprised of an A/D converter, serial signal converter and 24V direct supply, the manometric 4-20mA current signal output end of digital telemetering connects A/D converter IN+ and the IN-port of signal transmitting device, the DATA+ of A/D converter and DATA-pin, be connected respectively DATA+ and the DATA-pin of serial signal converter, the RS232 signal port of serial signal converter is connected to computing machine.
The beneficial effects of the utility model are: the aerosol can pressure tester adopts nitrogen as test(ing) medium aerosol can be carried out pressure test, read the tensimeter data by computer control, realize dynamic feedback, the controlled pressure increase and decrease, make product improve instrument performance, alleviate working strength, with in the past manually-operated, visual inspection, the check system of judging by experience changes sequencing into, standardized check system, greatly improve automaticity, its technical feature reaches the requirement of " international danger rule ", filled up the blank in domestic dangerous material inspection technology field, this equipment is by employing new technology in accuracy, security, robotization, the aspects such as stability have advance, have reached the leading level in the world.
Description of drawings
Fig. 1, the vessel safety evaluation of aerosol can class and pressure tester structured flowchart;
Fig. 2, signal transmitting device structured flowchart.
Embodiment
Understand the utility model for clearer, describe in detail in conjunction with the accompanying drawings and embodiments:
Extremely shown in Figure 2 such as Fig. 1, the vessel safety evaluation of aerosol can class and pressure tester, comprise pressure test gas circuit and test circuit, the source of the gas end of pressure test gas circuit is the nitrogen cylinder interface, nitrogen cylinder interface rear end connects an end of reliever, flow-limiting valve, buffering gas cylinder, electromagnetic current limiting valve and three-way connection successively, the in addition two ends of three-way connection connect respectively the digital telemetering tensimeter of output 4-20mA current signal and fixedly aerosol can detect interface; Test circuit comprises digital telemetering tensimeter, signal transmitting device, computing machine and printer, the manometric 4-20mA current signal output end of digital telemetering connects the input end of signal transmitting device, the output terminal of signal transmitting device is connected with the RS232 communication interface of computing machine, and computing machine is connected with printer.
The signal transmitting device is comprised of an A/D converter, serial signal converter and 24V direct supply, the manometric 4-20mA current signal output end of digital telemetering connects A/D converter IN+ and the IN-port of signal transmitting device, the DATA+ of A/D converter and DATA-pin, be connected respectively DATA+ and the DATA-pin of serial signal converter, the RS232 signal port of serial signal converter is connected to computing machine.
This pressure tester has adopted the know-why of pressure kinetic measurement, carry out the pressure quantitative test, in conjunction with the automatic technology such as pressure-controlled, digital pressure sensing of crossing, integrated module the transmission of data, the software processing data are used for small pressure container analysis and aerosol can class container pressure safety detection.
This pressure tester has adopted the technology such as automatic air pressure control, Intelligent constant-voltage, drift tracing analysis, in conjunction with digital sensing, module the transmission of data, software processing data, improve the precision of gas injection pressure, adopt the input of computing machine tensimeter electric signal, programmed pressure to judge the advanced methods such as prediction algorithm; Adopt computer system and smart to and slightly to dual pipeline air-flow is reduced to quite little to manometric impact, greatly reduce the error introduced by tensimeter, error is only limited to the electric current output error; Adopt automatically record, self-clocking, save manpower and time, increase work efficiency, shorten the cycle that check is come to testify.Similar testing equipment is only arranged both at home and abroad, but do not realize the robotization of the aspects such as operation, data acquisition and processing (DAP).
This testing machine adopts nitrogen as test(ing) medium aerosol can be carried out pressure test.Test the standard internal pressure that used nitrogen should be able to produce 2MPa, provided by source of the gas.The nitrogen that injects passes through first flow-limiting valve after the reliever decompression, this flow-limiting valve is that the nitrogen of controlling the buffering gas cylinder injects.The buffering gas cylinder is played the part of a key player in this system, it makes air-flow reduce to quite little to manometric impact.Out air-flow is through electromagnetic current limiting valve from the cushion gas bottle.This electromagnetic current limiting valve will make it according to the pressure condition automatic shutter by computer control, the gas that makes this flow-limiting valve of flowing through with the pressing speed that is no more than 150KPa/s automatically to the aerosol can pressurization, and after reaching 1.4MPa autoshutdown, keep 10s.
In no longer gas injection situation of the external world, observe the leakage situation of gas on the aerosol can.Gas through electromagnetic current limiting valve passes into respectively tensimeter and aerosol can through a three-way connection, so just makes manometric pressure remain consistent with the internal pressure of aerosol can.
The test of pressure is finished by tensimeter, and after supressing on the computing machine " beginning to detect " button, program will control electromagnetic current limiting valve and automatically open to aerosol can and pressurize, and after meeting the requirements of 1.4M Pa pressure the autoshutdown electromagnetic current limiting valve.This moment, any leakage of aerosol can parts just can accurately be reflected by tensimeter.
This pressure tester difference from prior art is: read the tensimeter data by computer control, realize dynamic feedback, the controlled pressure increase and decrease.Tensimeter is the explosion-proof distance-transmission pressure gauge of intrinsic safety type that adopts, the exportable electric current that becomes certain linear relationship with pressure of its output terminal.After adding the 24V direct supply to tensimeter, its output current can reach 4-20mA.The current signal of output also can't utilize, and must it be become the serial bus signal that calculates function identification through a signal transmitting device.
This pilot system has adopted the know-why of pressure kinetic measurement, carry out pressure test, in conjunction with the automatic technology such as pressure-controlled, digital pressure sensing of crossing, integrated module the transmission of data, the software processing data, this pressure tester is used for small pressure container analysis and aerosol can class container pressure safety detection.
This pressure tester has adopted the know-why of pressure kinetic measurement, the technology such as Intelligent constant-voltage, drift tracing analysis, in conjunction with digital sensing, module the transmission of data, software processing data, improve the precision of gas injection pressure, carry out automatic air pressure control and pressure quantitative test, in conjunction with the automatic technology such as pressure-controlled, digital pressure sensing of crossing, integrated module the transmission of data, the software processing data adopt the input of computing machine tensimeter electric signal, programmed pressure to judge the advanced methods such as prediction algorithm; Adopt computer system and smart to and slightly to dual pipeline air-flow is reduced to quite little to manometric impact, greatly reduce the error introduced by tensimeter, error is only limited to the electric current output error; Adopt automatically record, self-clocking, save manpower and time, increase work efficiency, shorten the cycle that check is come to testify.Similar testing equipment is only arranged both at home and abroad, but do not realize the robotization of the aspects such as operation, data acquisition and processing (DAP).
Press in the gas circuit of this testing machine to reach 20 atmospheric pressure, pressure scope in the genus requires the bearing capacity of system quite strong, and we have adopted import self-locking pneumatic joint during making, have well satisfied requirement.Add the computing machine automatic data acquisition, make system's safety and reliability.Lack the buffering gas cylinder with abroad aerosol can pressure test device, make tensimeter be subjected to the fluctuation of gas shock pointer violent, larger error appears in artificial meter reading in addition, the reliability reduction.After analyzing contrast, we have adopted this buffering gas cylinder, make pressure gauge reading stable, thereby have solved this difficult problem.
In addition, added variable pressure structure in aerosol can valve junction, the nitrogen in the gas circuit is injected in the aerosol can with minimum flow at high pressure conditions.Flow reduces suddenly behind the transformation pipeline of the nitrogen process transformation joint of process air pipe connector, thereby realizes to be no more than 150KPa/s pressure to the aerosol can gas injection.Valve adopts high precision to be processed into 1/8 inch diameter, guarantees airtight.Valve is fixed on the gas injection frame by the valve hold-down nut, becomes the line nut by one again and links to each other with the transformation joint.Through behind this series structure, solved the problem of gas injection speed.
Testing equipment was without the buffering gas cylinder in the past, and it is violent that the system pipeline stream pressure is changed, and caused the gauge hand shake, added with the naked eye reading, and error is larger, and tensimeter indicating value error is 1.5%, adds above two factors, and total error reaches 4%, and numerical error reaches 60KPa.The standard leak value of test is 250KPa/ minute, and therefore artificial reading error is had a greatly reduced quality the accuracy of test findings.After adopting computer system and buffering gas cylinder, error only limits to the electric current output error, and its maximal value is 1%., only be 25% of manual read's number.In addition.In the past hand-kept, timing take 4 minutes/lighter, adopt automatically and shorten to 1.5 minutes/lighter after record, the timing, and efficient is more than doubled, and every batch sample can be saved the proving time about 2 hours.Save valuable manpower and time, shortened the cycle of checking out certificate, improved greatly work efficiency.
According to the above description, can realize scheme of the present utility model in conjunction with art technology.
Claims (2)
1. an aerosol can class vessel safety evaluation and pressure tester, comprise pressure test gas circuit and test circuit, it is characterized in that, the source of the gas end of pressure test gas circuit is the nitrogen cylinder interface, nitrogen cylinder interface rear end connects an end of reliever, flow-limiting valve, buffering gas cylinder, electromagnetic current limiting valve and three-way connection successively, the in addition two ends of three-way connection connect respectively the digital telemetering tensimeter of exportable 4-20mA current signal and fixedly aerosol can detect interface; Described test circuit comprises digital telemetering tensimeter, signal transmitting device, computing machine and printer, the manometric 4-20mA current signal output end of digital telemetering connects the input end of signal transmitting device, the output terminal of signal transmitting device is connected with the RS232 communication interface of computing machine, and computing machine is connected with printer.
2. as claimed in claim 1 a kind of aerosol can class vessel safety evaluation and pressure tester, it is characterized in that, described signal transmitting device is comprised of an A/D converter, serial signal converter and 24V direct supply, the manometric 4-20mA current signal output end of digital telemetering connects A/D converter IN+ and the IN-port of signal transmitting device, the DATA+ of A/D converter and DATA-pin, be connected respectively DATA+ and the DATA-pin of serial signal converter, the RS232 signal port of serial signal converter is connected to computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202918372U CN202735053U (en) | 2012-06-20 | 2012-06-20 | Security evaluation and pressure tester for atomizer can container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202918372U CN202735053U (en) | 2012-06-20 | 2012-06-20 | Security evaluation and pressure tester for atomizer can container |
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| CN202735053U true CN202735053U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202918372U Expired - Fee Related CN202735053U (en) | 2012-06-20 | 2012-06-20 | Security evaluation and pressure tester for atomizer can container |
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| CN (1) | CN202735053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687976A (en) * | 2017-07-04 | 2018-02-13 | 合肥力翔电池科技有限责任公司 | A kind of high-precision power cover plate explosion-proof pressure testing device |
| CN109100085A (en) * | 2017-06-21 | 2018-12-28 | 山东朗进科技股份有限公司 | A kind of pressure wave detection device test tool and test method |
-
2012
- 2012-06-20 CN CN2012202918372U patent/CN202735053U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100085A (en) * | 2017-06-21 | 2018-12-28 | 山东朗进科技股份有限公司 | A kind of pressure wave detection device test tool and test method |
| CN109100085B (en) * | 2017-06-21 | 2024-09-17 | 山东朗进科技股份有限公司 | Pressure wave detection device test tool and test method |
| CN107687976A (en) * | 2017-07-04 | 2018-02-13 | 合肥力翔电池科技有限责任公司 | A kind of high-precision power cover plate explosion-proof pressure testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140620 |
|
| EXPY | Termination of patent right or utility model |