CN103837308A - Testing device and testing method for leakage of paper air permeability detector - Google Patents
Testing device and testing method for leakage of paper air permeability detector Download PDFInfo
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- CN103837308A CN103837308A CN201410113310.4A CN201410113310A CN103837308A CN 103837308 A CN103837308 A CN 103837308A CN 201410113310 A CN201410113310 A CN 201410113310A CN 103837308 A CN103837308 A CN 103837308A
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Abstract
Disclosed are a testing device and testing method for leakage of a paper air permeability detector. The testing device comprises a liquid soap box, a rubber ball arranged on the liquid soap box and a soap film flowmeter formed by a glass tube with scale marks, and an air inlet tube is connected with the lower portion of the glass tube. The testing device is characterized in that a pressing branch tube is additionally arranged on the upper portion of the glass tube, and an air inflating needle barrel is connected with the other end of the pressing branch tube. The leakage condition of the paper air permeability detector can be tested through the device, and the leakage amount of the detector can be calculated. Compared with other air flow measurement equipment, the soap film flowmeter adopted in the device is low in cost and high in measurement precision. The testing method is easy to operate, visual and accurate in detection result, good in universality and capable of being suitable for the leakage detection of paper air permeability detectors of different factories.
Description
Technical field
The present invention relates to a kind of for paper permeability detector leakage tester and method of testing thereof.
Background technology
Paper permeability detector is a kind of for measuring the specialized equipment of paper permeability, and the permeability that is mainly used in the Cigarette papers such as cigarette paper in production of cigarettes, tipping paper, forming paper is measured.
Because the air permeability of paper has considerable influence for cigarette tar content, so paper permeability detector is the important instrument equipment that tobacco business uses.The leakage meeting of instrument directly affects Cigarette paper air permeability measurement result, and finally affects cigarette quality.
According to the requirement of standard GB/T/T 23227-2008 " cigarette paper, forming paper, tipping paper and there is the mensuration of the material air permeability of directed air permeable belt ", under the condition on sealing gauge head assembly composition surface, should guarantee that the result of flow measurement is not more than 2cm
3/ min.
The main model of air permeability detector of domestic current use has A20, TQY-III, TQY500, D23 etc., structure and the principle of these air permeability detectors are incomplete same, but in its structure, substantially all comprise source of the gas, pressure governor, measuring unit, the several parts of gauge head assembly.Part instrument wherein self is with leakage detection function, but the realization of this leakage detection function is mainly the sensor based on instrument internal, and this function has certain limitation, in the time that leakage rate is less, cannot measure.At present, have no relevant research report for the universal external detection method of paper permeability detector Leak Detection.
Summary of the invention
The one that object of the present invention proposes for above-mentioned prior art situation is just for paper permeability detector leakage tester and method of testing thereof, utilize pick-up unit of the present invention to detect the leakage situation of the paper permeability detector of each manufacturer, effectively solve the Leak Detection problem of various paper permeability detectors.
The object of the invention is that scheme realizes by finishing below:
A kind of for paper permeability detector leakage tester, comprise by soap liquid box, the soap film flowmeter that is arranged on the rubber ball on soap liquid box and forms with the glass tube of scale mark, be connected with draft tube in glass tube bottom, wherein: set up the arm of exerting pressure on the top of glass tube, the other end of the arm of exerting pressure is connected with an air punch cylinder.
The concrete grammar step of utilizing aforementioned proving installation to carry out leak-testing to paper permeability detector is as follows:
(1) gas circuit between the pressure governor of air permeability detector and measuring unit is disconnected, use that silicone tube is connected the inlet end of pressure governor and soap film flowmeter respectively, the outlet side of measuring unit and soap film flowmeter is connected;
(2) with BOPP film, the gauge head module testing mouth of air permeability detector is sealed, select Leak Detection or the calibration function of air permeability detector to make test port closure, the path of air-flow is sealed completely;
(3) extruding rubber ball produces soap bubble in glass tube, utilizes syringe to regulate the position of soap bubble, and the bubble face of soap bubble is overlapped with 0, glass tube high scale line;
(4) start stopwatch and start timing, observe the number of division of soap bubble movement in 1 minute, if soap bubble is moved beyond 2 milliliters, can judge that detector does not meet standard-required, if the amount that soap bubble moves is less than 2 milliliters, detector meets standard-required.
Invention mechanism of the present invention and process are: first soap film flowmeter is connected in series between the pressure governor and measuring unit of air permeability detector, utilizes BOPP diaphragm seal instrument test mouth, whole current path is all closed.Then can, producing soap bubble, utilize syringe can regulate the position of soap bubble by extruding rubber ball, the bubble face of soap bubble is overlapped with scale mark, be convenient to reading.In the time that arrival is stablized, the soap bubble in soap film flowmeter should not produce movement.If soap bubble moves, illustrative system exists and leaks, and utilizes stopwatch to record the time that soap bubble moves a certain distance, and can calculate the leakage rate of instrument.
The air-flow measurement equipment of comparing other, the soap film flowmeter adopting in the present invention is with low cost, and accuracy of measurement is high.Method of the present invention is simple to operate, and testing result is intuitively accurate, and versatility is good, applicable to the Leak Detection of the paper permeability detector of different manufacturers.
Brief description of the drawings
Fig. 1: soap film flowmeter structural representation.
Fig. 2: soap film flowmeter and paper permeability detector connected mode schematic diagram.
Fig. 3: film is placed schematic diagram.
In figure: 1, source of the gas; 2., pressure governor; , soap film flowmeter, 3.1, soap liquid box, 3.2, glass tube, 3.3, rubber ball, 3.4, air intake opening, 3.5, gas outlet, 3.6, syringe; 4, measuring unit; 5, gauge head assembly, 5.1, sample holder, 5.2, test port; 6, BOPP film.
Embodiment
The present invention is further described below with reference to accompanying drawing: proving installation of the present invention be soap film flowmeter as shown in Figure 1.Mainly comprise that soap liquid box 3.1, rubber ball 3.3, glass tube 3.2(are with scale mark, minimum scale is 0.1 milliliter), syringe 3.6.Can in glass tube 3.2, produce soap bubble by extruding rubber ball 3.3, utilize syringe 3.6 can regulate the position of soap bubble, the bubble face of soap bubble is overlapped with scale mark, be convenient to reading.On glass tube 3.2, there are air intake opening 3.4, gas outlet 3.5, can be connected to by silicone tube the gas circuit of instrument.
Soap film flowmeter described in the present invention and instrument connected mode are as shown in Figure 2.In the air permeability detector structure of domestic current use, substantially comprise source of the gas 1, pressure governor 2, measuring unit 4, gauge head assembly 5.Wherein, gauge head assembly 5 parts comprise the sample holder 5.1 shown in Fig. 3, test port 5.2.
Carry out Leak Detection, comprise the following steps:
(1) gas circuit between the pressure governor of air permeability detector 2 and measuring unit 4 is disconnected, the air intake opening 3.4 that re-uses soap film flowmeter 3 shown in the output gas circuit of silicone tube Bonding pressure regulator 2 and Fig. 1, the gas outlet 3.5 of measuring unit 4 and soap film flowmeter 3 is connected.
(2) as shown in Figure 3, BOPP film 6 is positioned on sample holder test port 5.2, select Leak Detection or the calibration function of instrument that two clamping faces of sample holder 5.1 are clamped, now the path of air stream is sealed by BOPP film 6 completely, now in the gas circuit of whole instrument, should not have air-flow to pass through.
(3) extruding rubber ball 3.3 produces soap bubble in glass tube 3.2, and the position that regulates syringe 3.6 to move soap bubble, makes the concave surface of soap bubble overlap with 0 of scale mark.
(4) start stopwatch and start timing, observe the number of division of soap bubble movement in 1 minute, if soap bubble is moved beyond 2 milliliters, can judge that the leakage rate of air permeability detector does not meet standard-required, if the amount that soap bubble moves is less than 2 milliliters, the leakage rate of air permeability detector meets standard-required.
Claims (2)
1. one kind for paper permeability detector leakage tester, comprise by soap liquid box, the soap film flowmeter that is arranged on the rubber ball on soap liquid box and forms with the glass tube of scale mark, be connected with draft tube in glass tube bottom, it is characterized in that: set up the arm of exerting pressure on the top of glass tube, the other end of the arm of exerting pressure is connected with an air punch cylinder.
2. utilize proving installation described in claim 1 paper permeability detector to be carried out to a method for leak-testing, it is characterized in that: concrete steps are as follows:
(1) gas circuit between the pressure governor of air permeability detector and measuring unit is disconnected, use that silicone tube is connected the inlet end of pressure governor and soap film flowmeter respectively, the outlet side of measuring unit and soap film flowmeter is connected;
(2) with BOPP film, the gauge head module testing mouth of air permeability detector is sealed, select Leak Detection or the calibration function of air permeability detector to make test port closure, the path of air-flow is sealed completely;
(3) extruding rubber ball produces soap bubble in glass tube, utilizes the syringe of exerting pressure to regulate the position of soap bubble, and the bubble face of soap bubble is overlapped with 0, glass tube high scale line;
(4) start stopwatch and start timing, observe the number of division of soap bubble movement in 1 minute, if soap bubble is moved beyond 2 milliliters, can judge that detector does not meet standard-required, if the amount that soap bubble moves is less than 2 milliliters, detector meets standard-required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113310.4A CN103837308B (en) | 2014-03-25 | 2014-03-25 | A kind of method of testing of paper permeability detector being carried out to leak-testing |
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|---|---|---|---|
| CN201410113310.4A CN103837308B (en) | 2014-03-25 | 2014-03-25 | A kind of method of testing of paper permeability detector being carried out to leak-testing |
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| CN103837308A true CN103837308A (en) | 2014-06-04 |
| CN103837308B CN103837308B (en) | 2016-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167307A (en) * | 2017-06-07 | 2017-09-15 | 远东电缆有限公司 | Pyrocondensation sealing cap method for testing air permeability and special test equipment |
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| JPH02257019A (en) * | 1989-03-29 | 1990-10-17 | Shimadzu Corp | Soap film flowmeter |
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| US4691577A (en) * | 1986-03-10 | 1987-09-08 | Lalin Hill S | Soap film gas flowmeter |
| US4860592A (en) * | 1987-12-16 | 1989-08-29 | Gilian Instrument Corp. | Soap film gas flow measuring device |
| US4914955A (en) * | 1988-08-29 | 1990-04-10 | The United States Of America As Represented By The Secretary Of The Interior | Soapfilm flowmeter device for measuring gas flow rates |
| JPH02257019A (en) * | 1989-03-29 | 1990-10-17 | Shimadzu Corp | Soap film flowmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167307A (en) * | 2017-06-07 | 2017-09-15 | 远东电缆有限公司 | Pyrocondensation sealing cap method for testing air permeability and special test equipment |
| CN107167307B (en) * | 2017-06-07 | 2024-01-30 | 远东电缆有限公司 | Method and special equipment for testing air permeability of heat-shrinkable sealing cap |
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| CN103837308B (en) | 2016-03-16 |
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