CN1082660C - Passive instantaneous flowmeter - Google Patents
Passive instantaneous flowmeter Download PDFInfo
- Publication number
- CN1082660C CN1082660C CN 98104535 CN98104535A CN1082660C CN 1082660 C CN1082660 C CN 1082660C CN 98104535 CN98104535 CN 98104535 CN 98104535 A CN98104535 A CN 98104535A CN 1082660 C CN1082660 C CN 1082660C
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- China
- Prior art keywords
- hairspring
- magnet steel
- watchcase
- fixed
- gear
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- Expired - Fee Related
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Abstract
The present invention belongs to a flowmeter. The present invention is provided with a cavity, which is provided with a pair of gears, a fluid inlet, and a fluid outlet, and a meter case which is on the cavity. The inside of the cavity is provided with a gear shaft which extends into the meter case and is fixed with permanent magnet steel. The inside of the meter case is provided with a rotating shaft which is fixed with the inner end of a hairspring. One end of the rotating shaft is provided with a proculiform conductor of ring cover permanent magnet steel, and the other end of the rotating shaft is provided with a pointer. When liquid flows into the cavity, drives the gears, and drives the permanent magnet steel to rotate, the proculiform conductor inducts an eddy current and generates a moment which deflects the pointer. A moment balance, which is generated by the moment and the hairspring, controls the deflection amplitude of the pointer, so as to carry out a real-time measurement of instantaneous flow rate of the fluid. The present invention has the advantages of simple structure, convenience, visualness, measurement of bidirectional flow rate, etc.
Description
The invention belongs to the flowmeter of measuring fluid flow.
The present passive flowmeter that uses, all are flowmeters of accumulation formula metering, it is exactly like this resembling tap water meter and oval gear flowmeter, must be with this flowmeter survey instantaneous delivery by secondary instrument or by the calculating with the ratio of corresponding time of the integrated flux of certain period is obtained, very inconvenient.
In view of above-mentioned, the purpose of this invention is to provide and a kind ofly can directly measure instantaneous delivery, passive instantaneous flowmeter easy to use, directly perceived, simple in structure in real time.
Passive instantaneous flowmeter provided by the invention, have by housing, upper end cover, the fluid that contains that bottom end cover is formed advances, the cavity volume of outlet, cavity volume is built-in with the gear that is meshed, be fixed with the watchcase that contains the index dial transparent panel at upper end cover, it is characterized in that shaft extension with one of them gear in the cavity volume goes out upper end cover and enters in the watchcase, the permanent-magnet steel that fixedly has one or more pairs of magnetic poles on it, inner support and support that one cup-shaped electric conductor is fixed on watchcase are an end that supports the table axle of rotation, can rotate by ring cover permanent-magnet steel, the table axle passes through perpendicular hairspring, its other end links to each other with pointer between index dial and transparent panel, the inner of hairspring is fixing with the table axle, and outer end and watchcase are fixed.
Above-mentioned hairspring can only adopt one, but usually with adopt two positive and negative around to hairspring for well, so that can accurately regulate the pointer zero-bit.
This flowmeter, when fluid is flowed through the rotation of cavity volume promotion gear, gear drives the permanent-magnet steel rotation by axle again, the cup-shaped conductor of the magnetic force line cutting of permanent-magnet steel makes cup-shaped conductor produce eddy current, formed magnetic field of eddy current and permanent-magnet steel magnetic field interaction, order about cup-shaped conductor along the rotation of gear rotation direction, thereby the drive needle deflection, simultaneously, the hairspring on the table axle will produce trimming moment steering needle deflection amplitude.
The height of gear rotational speed has directly reflected the instantaneous delivery size of fluid, when instantaneous delivery is big, gear and permanent-magnet steel rotating speed height, then cup-shaped conductor eddy current is big, the moment that acts on cup-shaped conductor is also big, the needle deflection angle is increased, and at this moment, the counter torque of the balance eddy current moment that hairspring produces is also big.This shows that flowmeter of the present invention can directly measure the instantaneous delivery value in real time.
Below in conjunction with accompanying drawing invention is described in further detail.
Fig. 1 is a kind of instantiation of the present invention
Fig. 2 is the cavity volume cross section view
Fig. 3 is the permanent-magnet steel synoptic diagram
Fig. 4 is cup-shaped electric conductor
The hairspring that Fig. 5 adopts for Fig. 1 example
Fig. 6 is another instantiation of the present invention
With reference to Fig. 1, by housing 16, upper end cover 15, the cavity volume that bottom end cover 18 is formed is built-in with gear 1 and the gear 17 that is meshed, cavity volume has fluid to advance, outlet 20,21 (seeing shown in Figure 2), gear 1 and gear 17 can be the garden gears, also can be to take turns or ellipse garden gear at the waist of usefulness usually, on upper end cover 15, be fixed with and contain index dial 6, the watchcase 12 of transparent panel 7, the axle 14 of gear 17 stretches out upper end cover 15 and enters in the watchcase 12, in the illustrated example, on axle 14, fixed permanent-magnet steel 13 with two pairs of magnetic poles, permanent-magnet steel is seen shown in Figure 3, cup-shaped electric conductor 2 ring cover permanent-magnet steels 13 as shown in Figure 4, this cup-shaped electric conductor 2 is fixed on an end of table axle 3, table axle 3 passes through the hairspring 5 with its axis normal, 8 inner support 12 ' and supports 10 with watchcase serve as to support rotation, the other end of table axle 3 be positioned at the pointer 11 of index dial 6 and link to each other with 7 of transparent panels, in this example, adopt two hairsprings, these two hairsprings as shown in Figure 5, for just, back-roll to hairspring, the inner of two hairsprings all fixed with table axle 3, the outer end is respectively through hairspring support 4,9 fix with watchcase, usually, according to user's needs, the gear shaft 14 of flowmeter can be made with table axle 3 and be illustrated in figure 1 as coaxial cable or become the inclination angle as shown in Figure 6.
Flowmeter provided by the invention has convenience simple in structure, directly perceived, to measure bidirectional traffics etc. excellent The point.
Claims (3)
1. passive instantaneous flowmeter, have by housing [16], upper end cover [15], the fluid that contains that bottom end cover [18] is formed advances, outlet [20], [21] cavity volume, cavity volume is built-in with gear [1] and [17] that are meshed, be fixed with at upper end cover [15] and contain index dial [6], the watchcase [12] of transparent panel [7], it is characterized in that spool [14] of one of them gear [17] in the cavity volume are stretched out upper end cover [15] to be entered in the watchcase [12], the permanent-magnet steel [13] that fixedly has one or more pairs of magnetic poles on it, inner support [12 '] and support [10] that one cup-shaped electric conductor [2] is fixed on watchcase are an end that supports the table axle [3] of rotation, can rotate by ring cover permanent-magnet steel [13], table axle [3] passes through perpendicular hairspring [5], [8], its other end links to each other with the pointer [11] that is positioned between index dial [6] and the transparent panel [7], hairspring [5], [8] the inner is fixing with table axle [3], and outer end and watchcase are fixed.
2. by the described passive instantaneous flowmeter of claim 1, only one or two are positive and negative around to hairspring to it is characterized in that said hairspring.
3. by the described passive instantaneous flowmeter of claim 1, it is characterized in that gear shaft [14] and show axle [3] coaxial cable or become the inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98104535 CN1082660C (en) | 1998-02-07 | 1998-02-07 | Passive instantaneous flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98104535 CN1082660C (en) | 1998-02-07 | 1998-02-07 | Passive instantaneous flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1225447A CN1225447A (en) | 1999-08-11 |
| CN1082660C true CN1082660C (en) | 2002-04-10 |
Family
ID=5218269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98104535 Expired - Fee Related CN1082660C (en) | 1998-02-07 | 1998-02-07 | Passive instantaneous flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082660C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009032791A1 (en) * | 2009-07-10 | 2011-01-13 | Krones Ag | Device for filling multi-component drinks |
| CN104964723B (en) * | 2015-07-08 | 2018-12-04 | 常州孚技自动化设备有限公司 | A kind of passive flow sensor and passive flow measurement display control program |
| CN105973332A (en) * | 2016-07-15 | 2016-09-28 | 天津市炳华节能技术有限公司 | Positive and reverse rotation induction magnetic needle for mechanical remote water meter |
| CN109520580A (en) * | 2019-01-02 | 2019-03-26 | 安徽天维仪表有限公司 | A kind of small-sized oval gear flowmeter and processing method of no machine driven system |
| CN113310554A (en) * | 2021-05-28 | 2021-08-27 | 长沙航空职业技术学院 | Comprehensive test device and method for aircraft fuel consumption meter |
-
1998
- 1998-02-07 CN CN 98104535 patent/CN1082660C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1225447A (en) | 1999-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 98104535.9 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 98210428.6 utility model patent to be given up, and in the 18 volume of the 15 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |