CN102607992B - Air permeability detecting instrument for silicon rubber controlled atmosphere membrane and using method thereof - Google Patents
Air permeability detecting instrument for silicon rubber controlled atmosphere membrane and using method thereof Download PDFInfo
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- CN102607992B CN102607992B CN 201210061533 CN201210061533A CN102607992B CN 102607992 B CN102607992 B CN 102607992B CN 201210061533 CN201210061533 CN 201210061533 CN 201210061533 A CN201210061533 A CN 201210061533A CN 102607992 B CN102607992 B CN 102607992B
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Abstract
The invention provides an air permeability detecting instrument for a silicon rubber controlled atmosphere membrane and a using method thereof, which are used for solving the difficult problem that no rapid detection equipment exists in the actual production. The air permeability detecting instrument for the silicon rubber controlled atmosphere membrane structurally comprises an air supply device, a compressing device and a detecting device which are arranged in sequence from front to back. The instrument is characterized in that the air supply device mainly comprises a gas steel bottle, a pressure reducing valve, a throttling valve, a solenoid valve, a constant-pressure gas tank and a pressure transmitter which are sequentially connected from front to back through pipelines; the compressing device consists of an air cylinder, a gas upper cavity container, a split-flow board and a lower cavity container; and the detecting device comprises a tee-joint and a gas volume measuring instrument which are sequentially connected from front to back. According to tests, the instrument and the method disclosed by the invention can rapidly and conveniently detect the air permeability of a controlled atmosphere membrane to be tested, so that the product quality can be rapidly detected in the production, the production quality of products is monitored in time, and the product production is adjusted in an on-line way. Therefore, the air permeability detecting instrument for the silicon rubber controlled atmosphere membrane can be entirely applicable to the actual production of the products.
Description
Technical field
The present invention relates to a kind of ventilative detector, especially a kind of silicone window detector of breathing freely, and the using method of the ventilative detector of silicone window is disclosed.
Background technology
Because silicone window is more special, be mainly used in the storage of fruits and vegetables, be used for regulating the gaseous environment of fruit vegetables storing.The request for utilization of silicone rubber membrane is to use than large tracts of land, and the air penetrability of oxygen and carbon dioxide is had certain proportion requirement, and present checkout equipment mostly is small size or diffusion type measurement, and Measuring Time is long, significantly can not satisfy demand of practical production.
Summary of the invention
Technical assignment of the present invention is not have a kind of checkout equipment fast at silicone window in reality is produced, production efficiency is low, and this invention Apparatus and method for can be realized the quality of fast detecting product, in time monitors the quality of production of product, regulates the production of product.
The technical solution adopted for the present invention to solve the technical problems is:
This kind silicone window detector of breathing freely, the feeder, hold down gag and the pick-up unit that set gradually before and after its structure comprises, it is characterized in that, the gas bomb that described feeder is mainly connected by pipeline in turn by front and back, reduction valve, throttling valve, solenoid valve, pressure-sustaining gas jar and pressure unit are formed, the be stressed control of transmitter of the switch of solenoid valve; This feeder refers to provide the appliance arrangement of pressure-sustaining gas, and the constant pressure of this air feed equipment mainly relies on pressure controller and gas-holder to provide, and provides pressure control at 7Kpa, and pressure changes requirement control in 100pa;
Described hold down gag is to be made of cylinder, epicoele container, spreader plate and cavity of resorption container, the volume diameter of epicoele container and cavity of resorption container is all 80mm and both are oppositely arranged up and down, upper edge at the cavity of resorption container is stained with silicagel pad, it is concordant with silicagel pad that spreader plate is arranged in the upper surface of cavity of resorption container and spreader plate, this spreader plate can play the supporting role to silicone window to be measured, can also allow simultaneously tested gas see through the silicone rubber air conditioning preservative film uniformly and go forward side by side in the cavity of resorption container chamber, described epicoele container and pressure-sustaining gas jar are communicated with; Cylinder is used for ensureing that pressure chamber can compress up and down, prevents that measured object from producing the phenomenon of gas leakage, and the upper and lower cavity container is used for ensureing the ventilative area of the silicone window of surveying;
The threeway and the gas volume measuring instrument that connect in turn before and after pick-up unit comprises, two interfaces of described threeway connect cavity of resorption container and gas volume measuring instrument respectively, another interface emptying, it is the glass tube of 1mm that described gas volume measuring instrument adopts diameter, and the long water column of the 1cm that packs in the glass tube and glass tube are in horizontality.
Further, the running parameter of described pressure unit is as follows: its range controls to 10Kpa, and measuring accuracy controls to ± and 0.3%, the control instrument set pressure of pressure unit is 7Kpa, its range of control is 20pa.
The using method of the ventilative detector of this kind silicone window is characterized in that: comprises the steps,
Beneficial effect of the present invention: show according to experiment test, present device and method can detect the gas penetration potential of this controlled atmosphere film to be measured quickly and easily, testing product quality rapidly aborning, in time monitor the quality of production of product, the production of online adjusting product can be applied to the actual production of product fully.
Description of drawings
Accompanying drawing 1 is that the ventilative detector of silicone window is formed synoptic diagram;
Description of reference numerals: 1, gas cylinder 2, reduction valve 3, throttling valve 4, solenoid valve 5, pressure-sustaining gas jar 6, pressure unit 7, solenoid valve 8, cylinder 9, epicoele container 10, spreader plate 11, cavity of resorption container 12, threeway 13, gas volume measuring instrument.
Embodiment
With reference to explaining below the ventilative detector work of 1 pair of silicone window of the present invention of Figure of description.
The silicone window of the present invention detector of breathing freely, its structure comprises feeder, hold down gag, pick-up unit.Feeder mainly is by gas bomb 1, reduction valve 2, throttling valve 3, solenoid valve 4, pressure-sustaining gas jar 5, pressure unit 6 is connected by pipeline, gases at high pressure become low-pressure gas by gas bomb 1 through reduction valve 2, its low-pressure gas is controlled the flow of gas again through throttling valve 3, the be stressed control of transmitter 6 of the switch of solenoid valve 4, pressure unit 6 is selected highly sensitive product for use, its range controls to 10Kpa, measuring accuracy controls to ± and 0.3%, the control instrument set pressure of pressure unit is 7Kpa, its range of control is 20pa, solenoid valve 4 cuts out when pressure reaches 7020pa, solenoid valve 4 is opened when pressure reaches 6080pa, and the control of its range is assigned to guarantee by the pressure control part fully.
Hold down gag is made of cylinder 8, epicoele container 9, spreader plate 10 and cavity of resorption container 11, and gas epicoele container 9 is 80mm with the volume diameter of cavity of resorption container 11, and both are oppositely arranged relative engagement one on the other.Upper edge at the cavity of resorption container speckles with silicagel pad, and to ensure the sealing of volume, the height of spreader plate should be on the same plane with silicagel pad.During measurement silicone window is put on the spreader plate 10, want smooth wrinkle resistant, then the cylinder pressure button is pressed, epicoele container and cavity of resorption container are clipped in the middle silicone window and clamp, when cylinder 8 compresses downwards, solenoid valve 7 is opened, gas enters in the epicoele container 9 by pipeline, when measuring owing to have certain pressure differential in epicoele container 9 and cavity of resorption container 11 chambeies, gas spreader plate 10 also plays the effect of supporting silicone window at this, because the gas diffusibility of silicone window is relatively poor, detects gas penetration potential so use the gas of certain pressure aborning.See through the gas of silicone window this moment through cavity of resorption container 11, flow to threeway 12 places then, threeway 12 has a port to lead to atmosphere before timing not, as required the emptying earial drainage.It is the glass tube of 1mm that gas volume measuring instrument 13 adopts diameter, no any impurity and greasy dirt in should accomplishing to manage, with the long water column of 1cm of packing in the gas volume measuring instrument 13, and allow the initiating terminal of water column at 0 scale place, guarantee that gas volume measuring instrument 13 is horizontality, be ready to a stopwatch that precision is higher, when beginning to measure, close threeway 12 when leading to atmospheric air port, pin stopwatch, and the variation of water column is observed in attention, be 10 position when water column moves to default scale, stop timing, and the atmospheric air port of threeway 12 is opened, this moment required time (the time numerical value that stopwatch shows) of gas of respective volume is exactly the gas penetration potential that will measure silicone window.Contrast judges whether this silicone window is qualified according to the practical experience value, after measuring end, loosen button by lower cylinder, move on the epicoele container 9, solenoid valve 7 cuts out, tested silicone window is moved the position, then the water column in the gas volume measuring instrument 13 is turned back to 0 scale place, repeat top action then and continue to measure.
Embodiment recited above is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; the relevant technical staff in the field all should expand as in the determined protection domain of claims of the present invention various distortion of the present invention and improvement.
Claims (3)
1. the ventilative detector of silicone window, the feeder, hold down gag and the pick-up unit that set gradually before and after its structure comprises, it is characterized in that, the gas bomb that described feeder is mainly connected by pipeline in turn by front and back (1), reduction valve (2), throttling valve (3), solenoid valve (4), pressure-sustaining gas jar (5) and pressure unit (6) are formed, the be stressed control of transmitter (6) of the switch of solenoid valve (4);
Described hold down gag is to be made of cylinder (8), epicoele container (9), spreader plate (10) and cavity of resorption container (11), the volume equal diameters of epicoele container (9) and cavity of resorption container (11) and both are oppositely arranged up and down, upper edge at the cavity of resorption container is provided with silicagel pad, it is concordant with silicagel pad that spreader plate is arranged in the upper surface of cavity of resorption container and spreader plate, and described epicoele container and pressure-sustaining gas jar (5) are communicated with;
The threeway (12) and the gas volume measuring instrument (13) that connect in turn before and after pick-up unit comprises, two interfaces of described threeway (12) connect cavity of resorption container and gas volume measuring instrument (13) respectively, another interface emptying, it is the glass tube of 1mm that described gas volume measuring instrument (13) adopts diameter, and the long water column of the 1cm that packs in the glass tube and glass tube are in horizontality.
2. the ventilative detector of silicone rubber air conditioning according to claim 1, it is characterized in that the running parameter of described pressure unit is as follows: its range controls to 10Kpa, and measuring accuracy controls to ± and 0.3%, the control instrument set pressure of pressure unit is 7Kpa, and its range of control is 20pa.
3. the using method of the ventilative detector of silicone window according to claim 1 is characterized in that: comprises the steps,
Step 1, during measurement, at first silicone window to be measured is lain against on the spreader plate (10), it is smooth and wrinkle resistant that silicone window to be measured is wanted, then the cylinder pressure button is pressed, epicoele container and cavity of resorption container aligned fit also are clipped in the middle silicone window, when cylinder (8) compresses downwards, solenoid valve (7) is opened, gas enters in the epicoele container (9) by pipeline, because the pressure of epicoele container (9), sees through the gas of silicone window this moment greater than the pressure of cavity of resorption container (11) and flows to threeway (12) then through cavity of resorption container (11) and locate, threeway (12) has an end to lead to atmosphere before timing not; It is the glass tube of 1mm that gas volume measuring instrument (13) adopts diameter, no any impurity and greasy dirt in should accomplishing to manage, with the long water column of 1cm of packing in the gas volume measuring instrument (13), and allow the initiating terminal of water column at 0 scale place, guarantee that gas volume measuring instrument (13) is horizontality;
Step 2, be ready to a stopwatch that precision is higher, when beginning to measure, close threeway (12) when leading to atmospheric air port, pin stopwatch, and note observing the variation of water column, be 10 position when water column moves to scale, stop timing, and simultaneously the atmospheric air port of threeway (12) is opened, the time numerical value that this moment, stopwatch showed is exactly the gas penetration potential that will measure silicone window; According to judging with the standard figures contrast whether this silicone window is qualified;
Step 3, after measuring end, loosen button by lower cylinder, the epicoele container moves on (9), solenoid valve (7) cuts out, tested silicone window is moved the position, then the water column in the gas volume measuring instrument (13) is turned back to 0 scale place, repeat top action then and continue to measure, finish and repeatedly adopt point measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201210061533 CN102607992B (en) | 2012-03-09 | 2012-03-09 | Air permeability detecting instrument for silicon rubber controlled atmosphere membrane and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210061533 CN102607992B (en) | 2012-03-09 | 2012-03-09 | Air permeability detecting instrument for silicon rubber controlled atmosphere membrane and using method thereof |
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| CN102607992A CN102607992A (en) | 2012-07-25 |
| CN102607992B true CN102607992B (en) | 2013-07-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103573752B (en) * | 2013-10-21 | 2015-05-13 | 浙江大学 | On-line air content detection device for hydraulic system |
| CN107843532A (en) * | 2016-09-21 | 2018-03-27 | 希悦尔（中国）有限公司 | A kind of film micropore ventilation property test device |
| CN108051357A (en) * | 2017-12-14 | 2018-05-18 | 广东省东莞市质量监督检测中心 | A kind of mattress and mattress material gas permeability detection method |
| CN108279198A (en) * | 2017-12-18 | 2018-07-13 | 广州番禺职业技术学院 | A kind of packaging material gas permeability detection method based on pressure differential method |
| CN109520867A (en) * | 2018-11-29 | 2019-03-26 | 天津福臻工业装备有限公司 | For measuring the device of powerful cylinder output torque |
| CN109580455B (en) * | 2019-01-07 | 2021-11-05 | 东北大学 | System and method for measuring porosity of copper foil |
Citations (4)
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|---|---|---|---|---|
| CN1510411A (en) * | 2002-12-26 | 2004-07-07 | 北京化工大学 | Method for measuring microcellular plate-type membrane porosity |
| CN2779385Y (en) * | 2004-05-14 | 2006-05-10 | 中国科学院上海应用物理研究所 | Test unit for special-purpose filter membrane for membrane bioreactor |
| CN1804618A (en) * | 2005-11-22 | 2006-07-19 | 天津化工研究设计院 | Apparatus and method for testing and evaluating performance of medicament for water treatment with reverse osmosis membrane |
| CN202502027U (en) * | 2012-03-09 | 2012-10-24 | 中华全国供销合作总社济南果品研究院 | Silicon rubber air-regulating film ventilation detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2885693B1 (en) * | 2005-05-10 | 2007-09-07 | Sidel Sas | METHOD FOR MEASURING GAS PERMEABILITY WITH QUICK CONDITIONING AND INSTALLATION FOR IMPLEMENTING THE SAME |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510411A (en) * | 2002-12-26 | 2004-07-07 | 北京化工大学 | Method for measuring microcellular plate-type membrane porosity |
| CN2779385Y (en) * | 2004-05-14 | 2006-05-10 | 中国科学院上海应用物理研究所 | Test unit for special-purpose filter membrane for membrane bioreactor |
| CN1804618A (en) * | 2005-11-22 | 2006-07-19 | 天津化工研究设计院 | Apparatus and method for testing and evaluating performance of medicament for water treatment with reverse osmosis membrane |
| CN202502027U (en) * | 2012-03-09 | 2012-10-24 | 中华全国供销合作总社济南果品研究院 | Silicon rubber air-regulating film ventilation detector |
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