CN103063282B - Household aerosol commodity quantity variable inspection method and device - Google Patents
Household aerosol commodity quantity variable inspection method and device Download PDFInfo
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- CN103063282B CN103063282B CN201210587917.7A CN201210587917A CN103063282B CN 103063282 B CN103063282 B CN 103063282B CN 201210587917 A CN201210587917 A CN 201210587917A CN 103063282 B CN103063282 B CN 103063282B
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Abstract
The invention relates to a household aerosol commodity quantity variable inspection method and a device. A volume conversion method is adopted so that firstly aerosol contents are transferred to a density bottle, and negative pressure of the density bottle is controlled by a vacuum pump and an extraction valve in the process of transferring, the negative pressure is -90KPa-95KPa, and the aerosol contents are controlled to release by an introduction valve. Then a relative density method formula m/V=mm/Vm is used to calculate quality of detected aerosol contents. The device comprises a port valve, a pipeline, the vacuum pump, the extraction pump, the introduction valve and the density bottle, the density bottle is connected with the extraction pump and the introduction valve by the port valve, the extraction valve is connected with the vacuum pump, and a material inlet of the introduction valve is connected with the port valve which is connected with a material outlet of a detected aerosol bottle. A sliding guide rail and a stepping motor are arranged below the detected aerosol bottle. A principle of differential pressure is adopted to solve the problem of transferring of the aerosol contents, solve the problem of control and transfer of the aerosol contents, and confirm the rules suitable for legal system measurement supervision.
Description
Technical field
The present invention relates to a kind of aerosol method of inspection and verifying attachment.
Background technology
Although the Aerosol Industry of China is started late, rapidly, aerosol products is mainly divided into personal belongings, household supplies, deinsectization articles for use, medical supplies and other articles for use, comprises the six large classes such as fire-fighting in development.Produce nearly 1,000,000,000 tanks of inhalator jar at present per year according to interrelated data China, occupy the 4th, American and Britain, the De Hou world, become genuine world aerosol and produced and big export country.And household supplies, the deinsectization category aerosol products (hereinafter referred to as " aerosol ") such as aerosol with fresh air, insect aerosol have become indispensable general merchandise in people's daily life.The commodity had a large capacity and a wide range whether scale standard amount foot are just being in particular citizen and are paying close attention to, but aerosol class article component is complicated, and very easily generating gasification, exists Difficulty to the detection of its commodity amount, and enterprise's detection only rests on single-piece and checks aspect, does not form the control criticized.The means detected also main method are by hand verified.In addition, domestic testing agency situation is:
Once will significantly expand or the commodity that gasify by volume at ambient pressure in JJF1070-2000 " content of prepackaged goods with fixed net inspection rule " at that time, the compression type content of prepackaged goods with fixed net of similar aerosol class detects to be listed in rule, but owing to there is no scientific and reasonable detection method and means, cause unnecessary dispute and erroneous judgement, when the rules revision of 2005, this clause is removed, no longer list in.Revised 1070 promulgate and enforce since, the inspection mechanism in the whole nation does not form the metering test problem that the method for inspection of science and technological means solve these type of commodity, so far, in the special selective examination of content of prepackaged goods with fixed net country, aerosol commodity are from excluding.
Therefore; relating to the articles for daily use of the people's livelihood; how administrative department of measurement of government supervises these type of commodity; the legitimate interests of Protection of consumer effectively; the correct query responding the common people in time; improve the administrative law enforcement ability of government department, have a responsibility for providing effective technical guarantee as engineering department.In this context; this project is exactly to fill up the blank that aerosol commodity net content detects this respect as the perspective study of gauge check mechanism; for relevant government department provide advanced, technical guarantee reliably and support, contribute to administrative department of measurement of government and improve administrative law enforcement ability and objective, the just Protection of consumer rights and interests at aerosol class quantification packing commodity.
Summary of the invention
The present invention is the measurement technology problem that will solve aerosol with fresh air (family expenses aerosol) quantification packing commodity, and provides a kind of household aerosol commodity quantity variable inspection method and verifying attachment.
For achieving the above object, technical scheme of the present invention is: a kind of household aerosol commodity quantity variable inspection method, employing capacity transformation approach, first aerosol content is transferred to density bottle, control the negative pressure of density bottle in transfer process with vacuum pump and extraction valve :-90kPa ~-95kPa, and control the content release of aerosol with introduction valve; Then relative density method formula is used:
calculate the quality of tested aerosol content, in formula: the tested aerosol content quality of m-, the tested aerosol content volume of V-, m
m-the quality of content that migrates out from tested aerosol, V
m-the volume of content that migrates out from tested aerosol.
A kind of device for household aerosol commodity quantity variable inspection method, comprise interface valve, pipeline, vacuum pump, extraction valve, introduction valve, density bottle, feature is: density bottle connects extraction valve and introduction valve respectively by interface valve, extraction valve is connected with vacuum pump, and introduction valve enters thing mouth and connects the interface valve be connected with tested aerosol bottle object out hole; Below tested aerosol bottle, rail plate and stepper motor are housed.
Pressure unit is provided with in the pipeline that extraction valve is connected with vacuum pump.
Density bottle is made up of transparent material, and outside is added with sheath, and is fixedly connected with interface valve by the tightening cover of sheath.
Tested aerosol bottle is connected with density bottle by interface valve, conduit.
Rail plate is connected with tested aerosol bottle by slide block, and slide block fltting speed is 30mm/s, and astern speed is 10mm/s.
Interface valve door is by connector, and O-ring seal and pressure ring are connected by gauge head with tested aerosol bottle.
The invention has the beneficial effects as follows:
The maximum innovation of the present invention is in realizing automatically detecting by automated control technology first in aerosol net content detects.Formulate the inspection rule meeting international recommendation and national relevant laws and regulations first.Use automatic control technology, by analog quantity and the switching value process of programmable logic controller (PLC) (Programmable Logic Controller, PLC), in this device, carry out logic control, motion control and process control.By assembly and systems such as computing machine, PCON controller, high-precision motion control module, servo guide rail, pressure unit, solenoid valve and vacuum pumps, realize detecting robotization.
Be embodied in:
(1) principle of differential pressure is utilized to solve aerosol content branch problem.
Because aerosol itself does not have the condition of net content detection, so content must be obtained by certain means, form the condition that can survey.Density bottle is the important step solving net content detection, but the density bottle air itself being full of air seal due to forms resistance, content cannot be proceeded under field conditions (factors), make itself and aerosol form obvious pressure reduction by the way vacuumized and obtain content.Solve and original utilize petroleum gas (actual is tested content) emptying way of taking air out of, make methodological science, rationally, environmental protection and safety.
(2) the controlled branch problem of aerosol content is solved
The mainly form of controlled finger is controlled, due to the reason containing LPG once decompression can gasify under normal environment at once, can not guarantee testing result.The control of the controlled another aspect amount of being.The controlled prerequisite being also specification and detecting.By automated control technology, make the rectilinearity that advances in sample testing process and advance distance have controllability, guarantee coordination and the repeatable accuracy of testing process., the design of interface and the control of valve are taken measures meanwhile, guarantee the ortho states that content shifts and impermeability.
(3) rule that applicable legality measurement is supervised is determined
The inspection of net content is an importance of people's livelihood metering, is also the importance of legality measurement.We are by the research of hardware, guarantee that the inspection of aerosol net content has reliable, convenient, can a to trace to the source technological means.By the research of software, guarantee to have one scientific and reasonable, meet regulation, the unified detection method that has regulations to abide by and unified conformity assessment Principles and ways, finally make aerosol content of prepackaged goods with fixed net check and define closed loop from means to test basis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 be interface valve and tested aerosol bottle by gauge head syndeton schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
A kind of household aerosol commodity quantity variable inspection method, employing capacity transformation approach, first aerosol content is transferred to density bottle, control the negative pressure of density bottle in transfer process with vacuum pump and extraction valve :-90kPa ~-95kPa, and control the content release of aerosol with introduction valve; Then relative density method formula is used:
calculate the quality of tested aerosol content.
Because aerosol products has interior pressure and container contents non-singularity, and can not keep original form in decompression situation, this can not detect its volume by the method for routine with regard to making us.For this problem, the main target that this project will be studied be by the content of test product under the condition not changing its form, being transferred to us by reasonable manner can observe in the container (instrument) of disposal, under the environmental baseline of regulation, carry out volume measurement by relative density method or absolute density method.This method also should be applicable to batch pattern detection and have reliable and stable performance.(being called for short capacity transformation approach).
The method of inspection of the present invention, is guarantee that the content of aerosol products is constant in form, is shifted out under the prerequisite that quality is not lost.According to the object that will reach, should consider during design apparatus scheme guaranteeing that under the prerequisite that sample content does not scatter and disappear, transfer process is controlled, testing result can be reviewed.Pick-up unit is made up of topworks and control section.
In order to keep also consistent with 1070 detection methods specified with the Cleaning Principle of present aerosol correlation standard as far as possible, device is based on relative density method, the principle design that the density referring to sample content is here consistent with the density of the content being transferred out.
（1）
Also namely:
（2）
In formula: the tested aerosol content quality of m--;
The tested aerosol content volume of V--;
M
m--from the quality of the content that tested aerosol migrates out;
V
m--from the volume of the content that tested aerosol migrates out.
The detection method practical operation that formula (1) principle is determined is feasible, must solve the container that splendid attire is transferred out of content, be called density bottle.How aerosol content transfers to density bottle, the positiver sealing of transfer process, controlled, the problem such as the various outer diameter height of aerosol and the process of testing result of transfer amount are the key points that we study.Whole testing process needs robotization, guarantee efficiency and be also reliably we must faced by problem.
As shown in Figure 1, the device for household aerosol commodity quantity variable inspection method of the present invention, comprises density bottle 1, interface valve 2, pipeline, extraction valve 3, introduction valve 4, vacuum pump 5, rail plate 6, stepper motor 7, pressure unit 9 etc.
Density bottle 1 connects extraction valve 3 and introduction valve 4 respectively by interface valve 2, and extraction valve 3 is connected with vacuum pump 5, and introduction valve 4 enters thing mouth and connects the interface valve 2 be connected with tested aerosol bottle 8 object out hole; Tested aerosol bottle 8 is equipped with rail plate 6 and stepper motor 7 below.Pressure unit 9 is provided with in the pipeline that extraction valve 3 is connected with vacuum pump 5.Rail plate 6 is connected with tested aerosol bottle by slide block 10, and slide block 10 fltting speed is 30mm/s, and astern speed is 10mm/s.
As shown in Figure 2, interface valve 2 is by connector 11, and O-ring seal 12 and pressure ring 13 are connected by gauge head 14 with tested aerosol bottle 8.
The present invention adopts a set of propelling topworks be made up of rail plate and stepper motor to realize, and realizes Aulomatizeted Detect by computer control software.
A) sensing range: 350ml;
B) limits of error: it is consistent that ± 10.5ml(and JJF1070-2005 determines package goods net content metering test rule request).
Transparent material selected by density bottle 1 in Fig. 1, the special container of additional sheath, convenient cleaning, simple installation, and interface valve 2 is independent detachable, by the tightening cover of sheath by connection firm to itself and density bottle 1.Tested aerosol bottle 8 is connected with density bottle 1 by interface valve 2, conduit, transferring content thing.The present invention solves by hardware design and making the key issue run in actual testing process:
connecting interface problem
Interface valve and density bottle are connected key with the nozzle of aerosol valve have 2 points, and one is can not reveal in aerosol transfer process after connecting, and it two is the simple convenient operations of connected mode.The present invention adopts structural member as shown in Figure 2.Namely be basic material with stainless steel, junction embeds copper material.Such benefit is that the rigidity of external member is not yielding, and embedded copper material pressure ring has again soft feature, is convenient to nozzle plug.In cooperation, because nozzle material is plastics rolled-up stocks, not clear and definite machining precision index, so interface processing request is that excessively (interference) coordinates by we, utilize flexible by gauge head plastics, when sent by gauge head firmly insert pressure ring time, plastics overcome elastic deformation and enter pressure ring, after reaching certain pretightning force, when just waiting, produced sealing function by between gauge head and pressure ring.Sealing another measure taked is embedding sealing circle bottom interface, and benefit is, one is have certain buffering after inserting, and plays sealing function bottom its two nozzle and interface.The interface of present use is actual plays two road sealing functions.
content transfer process problem
We know, the flowing of liquid affects by potential, external force, pressure reduction nothing more than, are transferred to these extraneous factors in the process of density bottle all inoperative at aerosol content.Because under being defined in 25 DEG C ± 3 DEG C conditions, the pressure in aerosol container must not be greater than 1MPa, generally between 0.5 ~ 0.8 MPa.And density bottle is a container being full of air seal, air itself forms resistance, and when the two docking, liquid can not flow out on request, and also can not impose external force to aerosol container, forces to discharge content.
Principle of differential pressure is utilized in the present invention.Namely a decompression, injecting systems is devised.Vacuum pump and extraction valve control the negative pressure of density bottle, and current design load is-90kPa ~-95kPa, and introduction valve controls the content release of aerosol.Extraction valve and introduction valve adopt solenoid valve, and whole transfer process can control automatically.
the docking problem of container
In this device, container has two, and one is density bottle, and two is aerosol bottles.The physical dimension of density bottle is relatively fixing, guarantees that the centering of density bottle and interface valve is installed and fixes, the open and close of interface valve by design effort platform, mechanical fine adjustment mechanism and hold down gag.Key is, tested inhalator jar physical dimension differs, and only has after forming negative pressure in density bottle, could advance and open interface valve, and this is a dynamic process.Here there is the centering of interface, the rectilinearity of progradation, the problems such as the control of advance distance and propelling power.Interface can not in and progradation not straight line, content may be caused to leak, the serious damage causing sample nozzle.The bad valve that may cause of the control of advance distance and propelling power is not opened, or overexertion makes valve distortion, damage.
In the present invention, the propulsion system be made up of motion-control module (stepper motor), rail plate, mounting platform and cylindrical adjustment ring etc. is designed.Because the stroke of opening completely of aerosol valve is only about 5mm, the height of whole aerosol bottle is at 178mm-280mm, so moving guide rail selects the RCP2-SA7C type slide block of IAI company, its helical pitch 4mm, range 100mm, maximum translational speed is 120mm/s, and maximum horizontal carrying quality is 40kg, repetitive positioning accuracy ± 0.02mm.Motion-control module (stepper motor), step rate 1pps ~ 250kpps; Maximum number of steps: 232-1 walks; Export pulse mode: clockwise/inhour; The features such as the controllability simultaneously run according to stepper motor and adjustable, by arranging stepper motor step size controlling air line distance, native system design be every 4mm process, the output of pulse is 800, meets the distance controlling precision of this device completely.By the torque limiting parameter of stepper motor, control propelling power, when motor pushing moment of torsion exceedes protection value, motor stopping is reported to the police, and prevents overload, protective device.
As required, design slide block fltting speed is 30mm/s, retreats as 10mm/s.These measures can realize quick operation, accurately to the pinpoint requirement of neutralization.
Claims (6)
1. a household aerosol commodity quantity variable inspection device, comprise interface valve (2), pipeline, vacuum pump (5), extraction valve (3), introduction valve (4), density bottle (1), be characterised in that: described density bottle (1) connects extraction valve (3) and introduction valve (4) respectively by interface valve (2), extraction valve (3) is connected with vacuum pump (5), and introduction valve (4) enters thing mouth and connects the interface valve (2) be connected with tested aerosol bottle (8) object out hole; Tested aerosol bottle (8) is equipped with rail plate (6) and stepper motor (7) below.
2. device according to claim 1, is characterized in that: be provided with pressure unit (9) in the pipeline that described extraction valve (3) is connected with vacuum pump (5).
3. device according to claim 1, is characterized in that: described density bottle (1) is made up of transparent material, and outside is added with sheath, and is fixedly connected with interface valve (2) by the tightening cover of sheath.
4. device according to claim 1, is characterized in that: described tested aerosol bottle (8) is connected with density bottle (1) by interface valve (2), conduit.
5. device according to claim 1, is characterized in that: described rail plate (6) is connected with tested aerosol bottle (8) by slide block (10), and slide block (10) fltting speed is 30mm/s, and astern speed is 10mm/s.
6. device according to claim 1, is characterized in that: described interface valve (2) is by connector (11), and O-ring seal (12) and pressure ring (13) are connected by gauge head (14) with tested aerosol bottle (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210587917.7A CN103063282B (en) | 2012-12-31 | 2012-12-31 | Household aerosol commodity quantity variable inspection method and device |
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| CN201210587917.7A CN103063282B (en) | 2012-12-31 | 2012-12-31 | Household aerosol commodity quantity variable inspection method and device |
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| CN106053713B (en) * | 2016-07-12 | 2017-12-29 | 上海化工研究院有限公司 | A kind of automatically controlled quantitative release device for aerosol performance testing process |
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| CN203116826U (en) * | 2012-12-31 | 2013-08-07 | 上海市计量测试技术研究院 | Quantitative inspection device for amount of household aerosol |
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| FR2623105B1 (en) * | 1987-11-17 | 1993-03-19 | Inst Francais Du Petrole | DEVICE FOR MEASURING OR REGULATING AT LEAST ONE PHYSICAL CHARACTERISTIC OF A FLUID CONTAINED IN A CONTAINER SUCH AS ITS MASS |
| CN2117327U (en) * | 1991-11-27 | 1992-09-30 | 天津市第一香料厂 | Spray can liquid refilling machine |
| JP3711389B2 (en) * | 2003-04-04 | 2005-11-02 | 独立行政法人物質・材料研究機構 | Sea salt particle adhesion measuring method and measuring device |
| CN201527373U (en) * | 2009-10-16 | 2010-07-14 | 王刚 | Portable coal-seam analysis gas measuring device |
| CN202188978U (en) * | 2011-08-10 | 2012-04-11 | 中华人民共和国南通出入境检验检疫局 | Pretreatment device of clamping type gas sampling tank |
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| CN203116826U (en) * | 2012-12-31 | 2013-08-07 | 上海市计量测试技术研究院 | Quantitative inspection device for amount of household aerosol |
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Granted publication date: 20150520 Termination date: 20191231 |