CN104949716B - A kind of corrosion-resistant small-pulse effect equivalent flow meter - Google Patents
A kind of corrosion-resistant small-pulse effect equivalent flow meter Download PDFInfo
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- CN104949716B CN104949716B CN201510353176.XA CN201510353176A CN104949716B CN 104949716 B CN104949716 B CN 104949716B CN 201510353176 A CN201510353176 A CN 201510353176A CN 104949716 B CN104949716 B CN 104949716B
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- Prior art keywords
- magnet steel
- corrosion
- effect equivalent
- angular transducer
- flow meter
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Abstract
The present invention relates to corrosion-resistant small-pulse effect equivalent flow meter, including body (1), two cylindrical cavities (2) tangent to each other and the entrance (16) being connected with cylindrical cavity (2) and outlet (17) are provided with body (1), a fixing axle (3) is both provided with each cylindrical cavity (2), an oval rotor (4) is all arranged with every fixing axle (3), the end sleeve of wherein one fixing axle (3) is provided with and the close-fitting magnet steel seal cavity (6) of oval rotor (4) thereon, magnet steel (7) is sealed with magnet steel seal cavity (6), on body (1) accommodating chamber is offered at the position relative with magnet steel (7), angular transducer (8) is fixed with accommodating chamber, angular transducer (8) is connected with wire output end (9).The flowmeter can solve the problem that the etching problem of spinner flowmeter, and can obtain small-pulse effect equivalent, suitable for carrying out accurate measurement to Korrosionsmedium.
Description
Technical field
The invention belongs to medium field of measuring techniques, it is related to a kind of flowmeter for measuring Korrosionsmedium, more particularly to one
Plant corrosion-resistant small-pulse effect equivalent flow meter.
Background technology
Spinner flowmeter is the conventional apparatus for carrying out Medium Measurement.At present, the rotation of the rotor of general spinner flowmeter
There are two kinds of way of outputs, i.e.,：Machine driving and Magnetic drive.
But, either machine driving or Magnetic drive, all there are insoluble problem.Wherein, for machinery biography
Dynamic spinner flowmeter still, in corrosive situations, that is, measures Korrosionsmedium, it is necessary to sealed using seal
When, it seals bad solution, and Korrosionsmedium easily erodes its accurate device.For the spinner flowmeter of Magnetic drive,
Be all located at due to magnet steel in medium to be measured, cause magnet steel easily by dielectric corrosion so that magnet steel in medium it is corrosion-resistant
Property it is bad solve.
In view of the above-mentioned technological deficiency of prior art, in the urgent need to developing a kind of flow of new measurement Korrosionsmedium
Meter.
The content of the invention
It is an object of the invention to overcome shortcoming present in prior art, there is provided a kind of corrosion-resistant small-pulse effect equivalent flow
Meter, the flowmeter can solve the problem that the etching problem of spinner flowmeter, and can obtain small-pulse effect equivalent, suitable for entering to Korrosionsmedium
Row accurate measurement.
To achieve these goals, the present invention provides following technical scheme：A kind of corrosion-resistant small-pulse effect equivalent flow meter, its
Including body, be provided with the body two cylindrical cavities tangent to each other and the entrance being connected with the cylindrical cavity and
It is both provided with all being arranged with an ellipse in a fixing axle, the every fixing axle in outlet, each cylindrical cavity
Rotor, it is characterised in that the end sleeve of wherein one fixing axle is provided with to be fitted close with the oval rotor thereon
Magnet steel seal cavity, be sealed with position relative with the magnet steel on magnet steel, the body in the magnet steel seal cavity
Offer and angular transducer is fixed with accommodating chamber, the accommodating chamber, the angular transducer is connected with wire output end, passed through
The angular transducer can detect the anglec of rotation of the magnet steel to calculate outflow and export by the wire output end
Pulse.
Further, wherein, the angular transducer is two tunnel intersected Hall sensors, and the magnet steel is footpath
To the magnet steel magnetized, the magnetic direction of the magnet steel can be detected by the angular transducer, the current of the rotor is obtained
Angle, then calculate how many pulse should be exported.
Further, wherein, the openend of described two cylindrical cavities tangent to each other is provided with seal and gland,
The magnet steel seal cavity passes through the seal and gland.
Yet further, wherein, cover plate is provided with the outside of the gland, the accommodating chamber is opened in the lid of the body
In plate, the angular transducer is arranged in sensor holder, and the sensor holder is arranged in the accommodating chamber by seal receptacle.
Again further, wherein, axle sleeve is inlaid with the oval rotor and is arranged on described by the axle sleeve
In fixing axle.
Compared with existing spinner flowmeter, corrosion-resistant small-pulse effect equivalent flow meter of the invention has following Advantageous
Effect：
(1) in the axial end magnet steel of stainless steel magnet steel seal cavity one piece of radial magnetizing of sealing of rotor, magnetic is solved
Steel easily being corroded property dielectric corrosion the problem of.
(2) an angular transducer just is installed to the position of shaft end in body exterior and be finely divided, scun can be obtained
Rush equivalent.
(3) this flowmeter is applied to the accurate measurement with Korrosionsmedium.
Brief description of the drawings
Fig. 1 is the longitudinal sectional view of the corrosion-resistant small-pulse effect equivalent flow meter of the present invention.
Fig. 2 is the transverse sectional view of the corrosion-resistant small-pulse effect equivalent flow meter of the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the content of embodiment is not as the guarantor to the present invention
Protect the limitation of scope.
The present invention relates to a kind of corrosion-resistant small-pulse effect equivalent flow meter, it is applied to the accurate meter with Korrosionsmedium
Amount.
Fig. 1 shows the longitudinal sectional view of the corrosion-resistant small-pulse effect equivalent flow meter of the present invention.Fig. 2 shows the present invention's
The transverse sectional view of corrosion-resistant small-pulse effect equivalent flow meter.It is similar with existing spinner flowmeter referring to Fig. 1 and Fig. 2, this hair
Bright corrosion-resistant small-pulse effect equivalent flow meter includes body 1.Two cylindrical cavities 2 tangent to each other are provided with the body 1
And the entrance 16 being connected with the cylindrical cavity 2 and outlet 17.Medium to be measured enters the circle by the entrance 16
In cylinder chamber 2, and flowed out by the outlet 17, so as to realize the measurement of medium.
A fixing axle 3 is both provided with each cylindrical cavity 2.The fixing axle 3 is fixed on the cylindrical cavity 2
In.Meanwhile, an oval rotor 4 is all arranged with the every fixing axle 3.Wherein, as shown in Fig. 2 when two it is described ellipse
During the perpendicular intersection of the major axis of round rotor 4, one of ellipse rotor 4 can just block the cylindrical cavity 2, to hinder
Only medium passes through.
In the present invention, it is preferred to, axle sleeve 5 is inlaid with the oval rotor 4 and institute is arranged on by the axle sleeve 5
State in fixing axle 3.The axle sleeve 5 and the sliding friction of fixing axle 3, so that the oval rotor 4 can be around described
Fixing axle 3 is rotated.
It is different from existing spinner flowmeter, as shown in figure 1, in the present invention, wherein the end of a fixing axle 3
It is arranged with and the oval close-fitting magnet steel seal cavity 6 of rotor 4 thereon.Sealed in the magnet steel seal cavity 6
There is magnet steel 7.So, the magnet steel seal cavity 6 can be rotated together with the oval rotor 4, so that the energy of the magnet steel 7
Rotated together with the oval rotor 4.Preferably, the magnet steel seal cavity 6 is made of stainless steel.So, it is possible to reduce
Its interference to angular transducer 8 described later.
Meanwhile, offer accommodating chamber at the position relative with the magnet steel 7 on the body 1.It is fixed in the accommodating chamber
Angled sensor 8.The angular transducer 8 is connected with wire output end 9.The wire output end 9 may be coupled to outside
Instrument or system.So, it can detect the anglec of rotation of the magnet steel 7 to calculate outflow simultaneously by the angular transducer 8
Pulse is exported to external meters or system by the wire output end 9, to obtain the flow of medium.
Wherein, in the present invention, the angular transducer 8 is two tunnel intersected Hall sensors.The magnet steel 7
It is the magnet steel of radial magnetizing.So, when the magnet steel 7 is rotated together with the oval rotor 4, its magnetic direction can occur
Change.And the magnetic direction of the magnet steel 7 can be just detected by the angular transducer 8, obtain the rotor 4 works as anterior angle
Degree, then calculate how many pulse should be exported.
As shown in figure 1, in the present invention, it is preferred to, the openend of described two cylindrical cavities 2 tangent to each other is provided with
Seal 10 and gland 11.The magnet steel seal cavity 6 passes through the seal 10 and gland 11.Pass through the He of seal 10
The fixing axle 3 and oval rotor 4 etc. are sealed in the cylindrical cavity 2 by the gland 11.Wherein, the seal 10
It can prevent medium from flowing out and seepage.The gland 11 can protect the seal 10, further prevent medium outflow and
Seepage.
In addition, in the present invention, it is preferred to, the outside of the gland 11 is provided with cover plate 12.Wherein, the angle is accommodated
The accommodating chamber of sensor 7 is opened in the cover plate 12.It is highly preferred that the angular transducer 8 is installed, such as with gluing
Knot is in sensor holder 14.The sensor holder 14 is arranged in the accommodating chamber by seal receptacle 13.It is highly preferred that described close
Seal washer is provided between envelope seat 13 and the accommodating chamber.So, even if there is medium to pass through the seal 10 and gland 11
Flow out or ooze out, will not also corrode or damage the angular transducer 8, reduce the damage to the angular transducer 8.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, it can also make on the basis of the above description
Other various forms of changes or variation.Here all embodiments can not be exhaustive.Every skill for belonging to the present invention
Row of the obvious changes or variations that art scheme is extended out still in protection scope of the present invention.
Claims (5)
1. a kind of corrosion-resistant small-pulse effect equivalent flow meter, it includes being provided with two phases each other in body (1), the body (1)
The cylindrical cavity (2) cut and the entrance (16) being connected with the cylindrical cavity (2) and outlet (17), each cylindrical cavity
(2) it is both provided with being all arranged with an oval rotor (4) on a fixing axle (3), the every fixing axle (3) in, it is special
Levy and be, wherein the end sleeve of a fixing axle (3) is provided with and the close-fitting magnetic of the oval rotor (4) thereon
It is sealed with steel seal cavity (6), the magnet steel seal cavity (6) on magnet steel (7), the body (1) and the magnet steel (7) phase
To position at offer angular transducer (8) be fixed with accommodating chamber, the accommodating chamber, the angular transducer (8) is with leading
Line output terminal (9) is connected, and can detect the anglec of rotation of the magnet steel (7) to calculate stream by the angular transducer (8)
Measure and pulse is exported by the wire output end (9).
2. corrosion-resistant small-pulse effect equivalent flow meter according to claim 1, it is characterised in that the angular transducer (8)
It is two tunnel intersected Hall sensors, the magnet steel (7) is the magnet steel of radial magnetizing, passes through the angular transducer
(8) magnetic direction of the magnet steel (7) can be detected, the current angular of the oval rotor (4) is obtained, then calculate should be defeated
How many pulse gone out.
3. corrosion-resistant small-pulse effect equivalent flow meter according to claim 2, it is characterised in that described two tangent to each other
The openend of cylindrical cavity (2) is provided with seal (10) and gland (11), and the magnet steel seal cavity (6) passes through the sealing
Part (10) and gland (11).
4. corrosion-resistant small-pulse effect equivalent flow meter according to claim 3, it is characterised in that the outside of the gland (11)
Cover plate (12) is provided with, the accommodating chamber is opened in the cover plate (12), the angular transducer (8) is arranged on sensor holder
(14) in, the sensor holder (14) is arranged in the accommodating chamber by seal receptacle (13).
5. corrosion-resistant small-pulse effect equivalent flow meter according to claim 4, it is characterised in that the oval rotor (4)
Inside it is inlaid with axle sleeve (5) and is arranged on by the axle sleeve (5) in the fixing axle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353176.XA CN104949716B (en) | 2015-06-18 | 2015-06-18 | A kind of corrosion-resistant small-pulse effect equivalent flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353176.XA CN104949716B (en) | 2015-06-18 | 2015-06-18 | A kind of corrosion-resistant small-pulse effect equivalent flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949716A CN104949716A (en) | 2015-09-30 |
| CN104949716B true CN104949716B (en) | 2017-10-24 |
Family
ID=54164558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510353176.XA Expired - Fee Related CN104949716B (en) | 2015-06-18 | 2015-06-18 | A kind of corrosion-resistant small-pulse effect equivalent flow meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104949716B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817030A (en) * | 2016-09-14 | 2018-03-20 | 方惠娥 | A kind of birotor positive displacement accumulated fluid meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188753Y (en) * | 1993-12-25 | 1995-02-01 | 中国石化大庆石油化工总厂炼油厂 | Corrosion resisting elliptic gear volume flow meter |
| AU2006228061A1 (en) * | 2005-10-17 | 2007-05-03 | Trimec Industries Pty Limited | Improvements in oval rotor flowmeters having direct pulse generation |
| CN102124309A (en) * | 2008-06-20 | 2011-07-13 | 格瑞克明尼苏达有限公司 | Involute gear teeth for fluid metering device |
| CN102914338A (en) * | 2012-11-13 | 2013-02-06 | 浙江大学 | High-pressure resistant two-way cycloid rotameter |
| CN204807143U (en) * | 2015-06-18 | 2015-11-25 | 合肥精特仪表有限公司 | Corrosion -resistant little pulse equivalent flowmeter |
-
2015
- 2015-06-18 CN CN201510353176.XA patent/CN104949716B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188753Y (en) * | 1993-12-25 | 1995-02-01 | 中国石化大庆石油化工总厂炼油厂 | Corrosion resisting elliptic gear volume flow meter |
| AU2006228061A1 (en) * | 2005-10-17 | 2007-05-03 | Trimec Industries Pty Limited | Improvements in oval rotor flowmeters having direct pulse generation |
| CN102124309A (en) * | 2008-06-20 | 2011-07-13 | 格瑞克明尼苏达有限公司 | Involute gear teeth for fluid metering device |
| CN102914338A (en) * | 2012-11-13 | 2013-02-06 | 浙江大学 | High-pressure resistant two-way cycloid rotameter |
| CN204807143U (en) * | 2015-06-18 | 2015-11-25 | 合肥精特仪表有限公司 | Corrosion -resistant little pulse equivalent flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104949716A (en) | 2015-09-30 |
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