CN102147272A - Soap film flowmeter - Google Patents
Soap film flowmeter Download PDFInfo
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- CN102147272A CN102147272A CN 201010572187 CN201010572187A CN102147272A CN 102147272 A CN102147272 A CN 102147272A CN 201010572187 CN201010572187 CN 201010572187 CN 201010572187 A CN201010572187 A CN 201010572187A CN 102147272 A CN102147272 A CN 102147272A
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- soap
- film
- pipe
- lye
- liquid
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Abstract
The invention discloses a soap film flowmeter, which comprises a soap film tube, a gas inlet, a liquid soap cup and liquid soap. The liquid soap is accommodated in the liquid soap cup; the upper part of one side of the liquid soap cup is provided with the gas inlet; the soap film tube is inserted into the liquid soap cup and is in fixed and sealed connection with the liquid soap cup; and the soap film tube is positioned above a liquid level of the liquid soap. The soap film flowmeter is characterized in that: a soap film production device (5) is also arranged between the upper surface of the liquid soap cup (6) and the liquid level of the liquid soap (7); and an internal radial dimension of the soap film production device (5) is not less than a bottom radial dimension of the soap film tube (3). By the soap film flowmeter, the difficulty that the soap film is not easy to produce when a larger flow is measured by the soap film flowmeter is solved, the measurement use range of the soap film flowmeter is broadened, and the waste soap film liquid can be recycled.
Description
Technical field
The present invention relates to the soap film flowmeter that a kind of measurement gas flow is used.
Background technology
In the measurement verification regulations JJG586-2006 of the People's Republic of China (PRC) " soap film flowmeter " that implemented on March 6th, 2007, the principle of work and the structural shape of soap film flowmeter there is detailed description.In the prior art, the structural shape of soap film flowmeter is a soap-film pipe that has scale, an air intake opening is arranged below the soap-film pipe, the soap-film pipe connect a glueballs bottom, soap-film liquid is housed in the glueballs, its principle of work is: measured gas enters the soap-film pipe through the air intake opening of soap-film pipe lower end, extruding glueballs (or using other method) produces soap-film, because the pressure effect of air inlet, promoting soap-film at the uniform velocity rises along the soap-film pipe, when soap-film is raised to the following groove of soap-film pipe, timer picks up counting, when soap-film was raised to the last groove of soap-film pipe, timer stopped timing, can calculate the instantaneous delivery that flows through soap film flowmeter by the volume between time that records and soap-film pipe two grooves.The electronics soap film flowmeter then is in the soap-film uphill process, the lower limit of the pair of sensors of installing on the process outer wall and last prescribing a time limit, and Displaying Meter directly demonstrates instantaneous delivery.It is effective being used to measure small gas flow according to the soap film flowmeter of above two kinds of principle of work design, but, in real work, have following shortcoming: (1) is for the uncovered soap film flowmeter in upper end, soap-film is when rising to soap-film pipe top, the soap-film soap-film pipe of can blowing out influences surrounding environment, has limited the usable range and the occasion of soap film flowmeter.(2) when the gas flow that is used to measure greater than 6L/min, when particularly measuring flow greater than the gas flow more than the 20L/min, when with hand extruding glueballs, the soap lye liquid level is lifted to air intake opening, because the gas flow rate (flow) that air intake opening flows to is bigger, can be with the liquid level of soap lye and soap lye internal disturbance in a mess, can't guarantee to take place a good soap-film, therefore to want to take place a good soap-film be very difficult or almost be impossible.(3) when calibrating the sampling flow of air sampler, need above soap film flowmeter, increase a gas outlet, join with pipeline and air sampler, because the discharge area of soap film flowmeter dwindles suddenly, gas flowfield changes, flow velocity is accelerated, cause soap-film to break, the soap-film after breaking becomes the potpourri (hereinafter to be referred as soap-film liquid) of soap lye or soap lye and broken soap-film, and soap-film liquid flows down along the soap-film tube wall, or be bonded on the soap-film tube wall motionlessly, hindered the measurement and the metering of soap film flowmeter.
Summary of the invention
Deficiency at the prior art existence, technical matters to be solved by this invention is, a kind of soap film flowmeter is provided, and is not easy to produce the difficult problem of soap-film when measuring big flow to solve with soap film flowmeter, enlarge the measurement usable range of soap film flowmeter, and recyclable useless soap-film liquid.
For solveing the technical problem, the technical solution used in the present invention is, a kind of soap film flowmeter, and it comprises soap-film pipe, air intake opening, soap lye cup, soap lye; Soap lye places the soap lye cup, and soap lye cup one upper lateral part has air intake opening, and the soap-film pipe inserts in the soap lye cup and fixed seal connection with it, and the soap-film pipe is positioned at soap lye liquid level top; It also is provided with a soap-film process units between soap lye cup upper surface and soap lye liquid level, described its internal diameter size of soap-film process units is not less than soap-film pipe bottom outside dimension.
Optimize, described soap-film process units is fixedly connected with connecting rod, and this connecting rod passes the opposite side of soap lye cup and is tightly connected by connecting rod packoff and soap lye cup.
Above-mentioned soap film flowmeter, at a soap-film liquid of the top of its soap-film pipe socket retracting device, described its bottom surface internal diameter size of soap-film liquid retracting device is greater than the top outside dimension of soap-film pipe, soap-film liquid retracting device has the gas outlet on the surface, the center of its lower surface has the hole adaptive with the soap-film pipe, the soap-film pipe feeds soap-film liquid retracting device inside by this hole, but does not contact with soap-film liquid retracting device upper surface, and soap-film pipe and described soap-film liquid retracting device are tightly connected; Also have the soap lye outlet in the outside in the hole of soap-film liquid retracting device lower surface.
Described soap lye outlet is provided with valve.
Above-mentioned soap film flowmeter, described soap-film pipe, soap-film process units, soap-film liquid retracting device and its shape of cross section of soap lye cup are circular, square, triangle or polygon.
Optimize, the shape of cross section of described soap-film pipe, soap-film process units, soap-film liquid retracting device and soap lye cup is circular.
Described soap-film process units is an annulus, and the internal diameter of this annulus is not less than the diameter of soap-film pipe lower end.
Soap film flowmeter of the present invention, its in the socket of the top of soap-film pipe a soap-film liquid retracting device bigger than soap-film pipe end face size, also be provided with the soap-film process units that stretches in the soap lye cup below the soap-film pipe, the soap-film process units is used for producing the soap-film that is suitable for using specially.
When demarcating soap film flowmeter with soap film flowmeter measurement positive pressure gas of the present invention or with bell jar, by electromagnetism or mechanical effect the soap-film process units is moved up and down between soap lye cup upper surface and soap lye liquid level along the soap-film pipe, when soap-film process units contact soap lye and promote leave liquid level after, can produce a soap-film in soap-film pipe lower surface.Even the soap-film process units does not enter soap lye,,, also can produce a soap-film that is suitable for using in soap-film process units lower surface owing to reasons such as flow perturbations as long as soap-film process units lower surface and soap lye liquid level are close to a certain degree.The soap-film that produces with move on the soap-film process units near so that touch the soap-film pipe, under the gaseous tension effect, soap-film upwards at the uniform velocity rises along the soap-film inside pipe wall, when soap-film rose under the soap-film pipe groove, timer picked up counting; When soap-film rose on the soap-film pipe groove, timer stopped timing.Can calculate the gas flow that flows through soap film flowmeter by time that records and volume.When soap-film rose to soap-film pipe top, soap-film was broken under the effect of pressure, enters in the soap-film liquid retracting device, and gas is then discharged by the gas outlet.To give up soap-film liquid when shifting out at needs, valve open will be got final product.
Soap film flowmeter of the present invention, producing a soap-film can produce in the soap-film process units of xsect for circle or non-circle, and moving also of soap-film can be carried out in the soap-film pipe of cross section for circle or non-circle, therefore, the shape of cross section of soap-film pipe and soap-film process units and soap lye cup can be circular, square, polygon or other non-circular shape.In implementation process, because shape of cross section is that square or non-circular processing technology and method are simple for circular soap-film pipe, soap-film process units, soap lye cup than shape of cross section, therefore generally soap-film pipe, soap-film process units, soap lye cup are designed to shape of cross section for circular.Soap-film liquid retracting device is enclosed within the top of soap-film pipe, and its xsect is than the big circle of soap-film pipe upper diameter; Soap-film pipe lower end configuration soap-film process units.The diameter of soap-film pipe is littler than soap-film process units in the general design, but also needs sometimes according to circumstances the soap-film pipe to be designed to diameter greater than the soap-film process units, perhaps the diameter that soap-film pipe and soap-film process units are designed to equate.When the diameter of soap-film pipe measure portion during greater than the diameter of soap-film process units, the lower end diameter of the soap-film pipe still internal diameter than soap-film process units is little, so that when using, the soap-film process units can move up and down along the soap-film pipe, and at soap-film of the bottom of soap-film pipe generation.
The present invention has following advantage: when (1) soap-film process units moves up and down, can produce a soap-film in soap-film pipe lower end, it is simple and reliable for structure, has solved a difficult problem that is not easy to produce soap-film when measuring big flow with soap film flowmeter, has enlarged the measurement usable range of soap film flowmeter.(2) after soap-film rises to soap-film pipe top and breaks, useless soap-film liquid enters in the soap-film liquid retracting device automatically, has avoided useless soap-film liquid to flow down or hang on the soap-film tube wall and the problem of hamper measurements along tube wall.
Description of drawings
The present invention is described in more detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the structural representation of soap film flowmeter embodiment of the present invention.
Embodiment
As shown in Figure 1, this soap film flowmeter comprises soap lye 7 and soap-film liquid retracting device 2, soap-film pipe 3, soap-film process units 5, soap lye cup 6, connecting rod 8, connecting rod packoff 9, a valve 10.
The top of soap-film pipe 3 and 2 sockets of a soap-film liquid retracting device and sealing, soap-film liquid retracting device 2 is the drum of a diameter greater than soap-film pipe 3, have gas outlet 1 on its upper surface, the center of lower surface has the adaptive circular hole of external diameter of diameter and soap-film pipe 3, and soap-film pipe 3 feeds soap-film liquid retracting device 2 inside by this circular hole but do not contact with soap-film liquid retracting device 2 upper surfaces; Also have soap lye outlet 11 in the outside of soap-film liquid retracting device 2 lower surfaces, soap lye outlet 11 is provided with valve 10.
When this soap film flowmeter used, gas entered in the soap lye cup 5 by air intake opening 4, and the operator moves up and down connecting rod 9, drove soap-film process units 5 and moved up and down, thereby produce a soap-film in soap-film pipe 3 lower ends.This soap-film produces after can and promoting by soap-film process units 5 contact soap lyes 7 and leaving liquid level, also can be that soap-film process units 5 does not enter soap lye 7 but its lower surface and soap lye 7 liquid levels have been close to a certain degree, owing to reasons such as flow perturbations, and produce in its lower surface.The soap-film that produces is with moving approaching on the soap-film process units 5 and then touching soap-film pipe 3, the gas promotion soap-film that enters from air intake opening 4 goes upward in the soap-film pipe 3, measure soap-film by the following groove 12 of soap-film pipe 3, the time between last groove 13 positions with stopwatch or with methods such as Photoelectric Detection, volume by between time that records and soap-film pipe two grooves can calculate the instantaneous delivery that flows through soap film flowmeter.When breaking after soap-film rises to soap-film pipe 3 tops, because the effect of pressure, broken soap-film liquid enters in the soap-film liquid retracting device 2, when needs will give up soap-film liquid when shifting out, opens valve 10, and useless soap-film liquid is through outlet 11 of soap-film liquid and the outflow of valve 10 back.
The soap film flowmeter of present embodiment, if the shape of cross section of its soap-film pipe, soap-film process units, soap-film liquid retracting device and soap lye cup is that other shapes outside the circle are passable too, such as square, polygon or other shape, as long as adaptive between each parts.
Claims (7)
1. soap film flowmeter, it comprises soap-film pipe, air intake opening, soap lye cup, soap lye; Soap lye places the soap lye cup, has air intake opening on the soap lye cup, and the soap-film pipe inserts in the soap lye cup and fixed seal connection with it, and the soap-film pipe is positioned at soap lye liquid level top; It is characterized in that: it also is provided with a soap-film process units (5) between soap lye cup (6) upper surface and soap lye (7) liquid level, and its inner radial size of described soap-film process units (5) is not less than the outside dimension of soap-film pipe (3) bottom.
2. soap film flowmeter according to claim 1 is characterized in that: described soap-film process units (5) is fixedly connected with connecting rod (8), and this connecting rod (8) passes the opposite side of soap lye cup (6) and is tightly connected by connecting rod packoff (9) and soap lye cup (6).
3. soap film flowmeter according to claim 2, it is characterized in that: at a soap-film liquid of the top socket retracting device (2) of its soap-film pipe (3), its bottom surface radial dimension of described soap-film liquid retracting device (2) is greater than the radial dimension on soap-film pipe (3) top, have gas outlet (1) on its surface, the center of its lower surface has and the adaptive hole of soap-film pipe (3), soap-film pipe (3) feeds soap-film liquid retracting device (2) inside by this hole, and soap-film pipe (3) is tightly connected with described soap-film liquid retracting device (2); Also have soap lye outlet (11) in the outside in the hole of soap-film liquid retracting device (2) lower surface.
4. soap film flowmeter according to claim 3 is characterized in that: described soap lye outlet (11) is provided with valve (10).
5. soap film flowmeter according to claim 4 is characterized in that: the shape of cross section of described soap-film pipe (3), soap-film process units (5), soap-film liquid retracting device (2) and soap lye cup (6) is circular, square, triangle or polygon.
6. soap film flowmeter according to claim 5 is characterized in that: the shape of cross section of described soap-film pipe (3), soap-film process units (5), soap-film liquid retracting device (2) and soap lye cup (6) is circular.
7. soap film flowmeter according to claim 6 is characterized in that: described soap-film process units (5) is an annulus, and the internal diameter of this annulus is not less than the diameter of soap-film pipe (3) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010572187 CN102147272A (en) | 2009-11-25 | 2010-11-23 | Soap film flowmeter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910246656.0 | 2009-11-25 | ||
| CN200910246656 | 2009-11-25 | ||
| CN 201010572187 CN102147272A (en) | 2009-11-25 | 2010-11-23 | Soap film flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102147272A true CN102147272A (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010572187 Pending CN102147272A (en) | 2009-11-25 | 2010-11-23 | Soap film flowmeter |
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| Country | Link |
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| CN (1) | CN102147272A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620783A (en) * | 2012-04-23 | 2012-08-01 | 上海奇阳信息科技有限公司 | Image recognition-based electronic soap film gas flow meter |
| CN103150946A (en) * | 2013-02-05 | 2013-06-12 | 厦门大学 | Two-dimensional flow display device |
| CN103925957A (en) * | 2014-04-02 | 2014-07-16 | 新疆维吾尔自治区计量测试研究院 | Soap film flow meter with automatic film opening function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691577A (en) * | 1986-03-10 | 1987-09-08 | Lalin Hill S | Soap film gas flowmeter |
| US4762004A (en) * | 1986-03-10 | 1988-08-09 | Gilian Instrument Corp. | Gas flowmeter and soap bubble generator |
| US5448919A (en) * | 1992-12-07 | 1995-09-12 | Ametek, Inc. | Gas flow meter |
| CN101464169A (en) * | 2007-12-19 | 2009-06-24 | 王丕征 | Soap film flowmeter |
-
2010
- 2010-11-23 CN CN 201010572187 patent/CN102147272A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691577A (en) * | 1986-03-10 | 1987-09-08 | Lalin Hill S | Soap film gas flowmeter |
| US4762004A (en) * | 1986-03-10 | 1988-08-09 | Gilian Instrument Corp. | Gas flowmeter and soap bubble generator |
| US5448919A (en) * | 1992-12-07 | 1995-09-12 | Ametek, Inc. | Gas flow meter |
| CN101464169A (en) * | 2007-12-19 | 2009-06-24 | 王丕征 | Soap film flowmeter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620783A (en) * | 2012-04-23 | 2012-08-01 | 上海奇阳信息科技有限公司 | Image recognition-based electronic soap film gas flow meter |
| CN103150946A (en) * | 2013-02-05 | 2013-06-12 | 厦门大学 | Two-dimensional flow display device |
| CN103925957A (en) * | 2014-04-02 | 2014-07-16 | 新疆维吾尔自治区计量测试研究院 | Soap film flow meter with automatic film opening function |
| CN103925957B (en) * | 2014-04-02 | 2017-08-08 | 新疆维吾尔自治区计量测试研究院 | One kind opens membrane type soap film flowmeter automatically |
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Application publication date: 20110810 |