CN1664514B - Ultrasonic counter for determining flux of yielding medium - Google Patents
Ultrasonic counter for determining flux of yielding medium Download PDFInfo
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- CN1664514B CN1664514B CN 200410083200 CN200410083200A CN1664514B CN 1664514 B CN1664514 B CN 1664514B CN 200410083200 CN200410083200 CN 200410083200 CN 200410083200 A CN200410083200 A CN 200410083200A CN 1664514 B CN1664514 B CN 1664514B
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- deviation mirror
- ultrasound wave
- counting
- bearing
- wave counting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
Abstract
Ultrasonic flowmeter for measuring the flow rate of a flowing liquid or gas has a housing (1) that encloses a measuring section along which a differential time of flight measurement can be made using at least an ultrasonic transducer (2) and a ultrasound mirror (5) for guiding the sound beam. Fluid flow guiding elements are provided in the area of the mirror surface to optimize the fluid flow over the mirror surface.
Description
Technical field
The present invention relates to a kind of ultrasound wave counting device that is used for the flow of definite medium, particularly liquid that flows or gas.
Background technology
DE 201 07 894 U1 disclose a kind of ultrasonic flowmeter of described type.Therefore here, the coboundary that deviates from the deviation mirror of fluid was streamed by dielectric ring, had formed the district that reduces of recirculating zone or flow velocity again in the surf zone of first deviation mirror, and this can cause that deviation mirror is contaminated.Also can have influence on the long-time stability of ultrasonic flowmeter thus.
DE 199 30 278 A1 have introduced a kind of ultrasound wave counting device, have one first deviation mirror, and it includes and flows to parallel hole, and these holes can stop deviation mirror contaminated.But here the deviation mirror of Jie Shaoing is very bothersome at its manufacture view, because must open many and off plumb hole, deviation mirror plane.
Summary of the invention
Task of the present invention is, a kind of new-type ultrasound wave counting device is provided, and it has long-term stability and on the one hand to polluting insensitive characteristics, can make simply on the other hand and also cost lower.
For the type ultrasound wave counting device, the solution of above-mentioned task is, it has a housing, has a measuring section that is placed in this housing, can carry out the transit time along this measuring section and measure (Laufzeitmessung), transit time difference measurements (Differenzlaufzeit-messung) particularly, it also has at least one ultrasonic transducer, at least one is along the deviation mirror of flow media flow direction, by it the ultrasound wave of ultrasonic transducer is turned to towards measuring tube, the mechanism that some on purpose influence the stream in the deviation mirror surf zone is set in the zone of deviation mirror, described mechanism is positioned on the deviation mirror bearing, this deviation mirror bearing has the preceding teat of a deviation mirror bearing, and, before this deviation mirror bearing teat constituted one concordant substantially with the deviation mirror surface, flat lateral surfaces extension.
When measuring transit time difference, the perhaps reflection of the ultrasonic signal by ultrasonic transducer or by being undertaken flow measurement by the relative other end ultrasonic waves transmitted signal of another ultrasonic transducer at measuring section, some are set in the zone of deviation mirror on purpose influences the mechanism of flowing in the deviation mirror surf zone, and particularly eliminates, shifts or reduce the recirculating zone again, have the little district of flowing and/or have the district of motionless medium.The present invention based on knowledge be that being provided with to influence in the deviation mirror surf zone mechanism that forms this district, that is to say preventions, mobile or reduce the formation in this district at least to a great extent.
This can meet the destination and carry out in typical flow region that select, counter works.Can guarantee like this, be removed again at heavy these layers during the quiescent phase or when atypia flows.
What meet purpose is, these mechanisms comprise the guiding device of the shunting that is used to produce at least one orientation, and wherein, this shunting is particularly directed substantially parallel with the first deviation mirror surface in the upper area of first deviation mirror.This shunting stop to form undesirable flow regimes, the recirculating zone again in the deviation mirror surf zone for example, thus prevent that foul from precipitating gradually.
What meet purpose is, another structure of the present invention, these mechanisms mainly are arranged in the zone of upper end of deviation mirror, therefore, they directly to equally in this zone the flow regimes (for example returning eddy current again) of formation exert an influence.
What meet purpose is that these mechanisms can be positioned at the zone of deviation mirror bearing and/or the zone of deviation mirror itself.
A suitable mechanism is, the deviation mirror bearing is teat shape before the deviation mirror bearing of side adjacency, and wherein, teat substantially evenly abuts on the surface of first deviation mirror before the deviation mirror bearing.Therefore we can say that the surface of deviation mirror is held by teat before the deviation mirror bearing and upwards prolongs.Can reach like this, the recirculating zone is transferred in the zone of teat before the deviation mirror bearing from the surface of deviation mirror.
What meet purpose is, the nozzle of at least one corresponding orientation or a related device of being made up of a plurality of nozzles is set as described mechanism.
Alternatively or additionally, these described mechanisms also can comprise the guide piece, particularly guide vane of a corresponding at least orientation.
Here, this nozzle can or be positioned at first deviation mirror, is positioned at the deviation mirror bearing, perhaps between first deviation mirror and deviation mirror bearing.
According to another configuration of the present invention, directed guide piece or nozzle are arching or crooked.The upper end of teat also advantageously constitutes agley before the deviation mirror bearing.
In addition, constitute a return flow line in an advantageous manner and since have on the end of return flow line one according to venturi in the main flow of low pressure of principle, a backflow is arranged, thereby it can increase to flow and makes the deviation mirror automatically cleaning in this return flow line.Here, the return flow line constitutes like this: be basically parallel to the deviation mirror surface in the transitional region of its teat before from deviation mirror to the deviation mirror bearing.The return flow line can be passed an extension extension on the preceding teat of deviation mirror bearing or connect an adapter by teat before the correspondingly configured deviation mirror bearing and constitute.
The configuration that another meets purpose of the present invention is, teat has constituted deviation mirror flat, that substantially evenly stop a surface extension at it before the deviation mirror bearing in the transitional region of deviation mirror, the result is that the recirculating zone is transferred in the zone of the preceding teat of deviation mirror bearing again.
The present invention from the feature of another form of implementation be that the deviation mirror bearing meets the destination and can form along half part of a vertical defiber combination by two.This makes the insertion of deviation mirror easier on the one hand, and it is easier to make on the other hand as the manufacturing of the deviation mirror bearing of complex-shaped improved plastics structural shape.Also can half identical part be set for the additional deviation mirror that ultrasonoscope is counted in the device.This thought makes it possible to best fixedly deviation mirror, and this is an important prerequisite that guarantees ultrasound wave counting device long-time stability.
If the deviation mirror bearing has the device that is used for fixing measuring tube, housing advantageously needn't be processed.
In addition, the thermal expansivity of deviation mirror bearing, housing and/or deviation mirror can be complementary.
What meet purpose is that deviation mirror has parallel stationary plane.For example, it can make polygonal, particularly octagonal, can reach better fixedly degree of accuracy by this when packing into.Perhaps come shape fixing deviation mirror identically here, by four right-angle planes or by four diagonal dominant matrices.
In addition, can come shape fixing deviation mirror identically by the corresponding recesses in the deviation mirror bearing, this can improve long-time stability.
What meet purpose is, compares with main flow, and shunting has bigger flowing velocity.
Ratio≤1 of shunting and whole flow: 20, perhaps meet the destination in 1: 20 to 1: 130 scope.Like this, main flow does not have obvious errors, thereby can the measurement characteristics that ultrasound wave is counted device not had a negative impact.
That bearing brace on the deviation mirror bearing can be made the sieve shape or constitute as fluid rectifier.
The deviation mirror bearing not only carries a deviation mirror, but also carries another deviation mirror, and the bearing of this deviation mirror is maintained in the position by a retaining element that particularly is placed in the center. and its advantage is, because special fixing can be reduced the tolerance of member.
The feature of another form of implementation of the present invention is that deviation mirror bearing, deviation mirror and measuring tube can be used as a unit and take out or insert from the housing of ultrasound wave counting device, exactly, need not pull down corresponding ultrasonic transducer.Therefore, maintenance and maintenance are simple especially.
What meet purpose is, ultrasonic transducer is positioned at the housing of ultrasound wave counting device, for example concordant with the measuring tube inside surface or continue to insert inwards in the housing of ultrasound wave counting device.
The deviation mirror bearing by at least one, preferably two O-ring seals around, these O-ring seals are used for the sealing of deviation mirror bearing and ultrasound wave counting device housing on the one hand, to link together by the unit that deviation mirror bearing, deviation mirror and measuring tube are formed on the other hand, like this, this unit is inserting or is pulling out and can be operated simply especially.
Description of drawings
Introduce the structure that meets purpose of the present invention in detail by means of accompanying drawing below.Accompanying drawing is represented:
A sectional view of Fig. 1 the above-mentioned type ultrasound wave counting device;
Fig. 2 has illustrated on the deviation mirror in the prior art with the synoptic diagram of special simplification and has formed recirculating zone again;
Fig. 3 shows a deviation mirror of the present invention and deviation mirror bearing;
Half that Fig. 4 illustrates another structure of deviation mirror of the present invention and deviation mirror bearing with longitudinal sectional view (Fig. 4 A), deviation mirror end view (Fig. 4 B) and the deviation mirror bearing is shown with stereographic map (Fig. 4 C);
Fig. 5 illustrates a deviation mirror and deviation mirror bearing with the synoptic diagram of special simplification, has one and is integrated in the return flow line (Fig. 5 A) in the deviation mirror bearing and has one by teat before the deviation mirror bearing and the return flow line (Fig. 5 B) that extention constitutes;
Another of Fig. 6 deviation mirror of the present invention and deviation mirror bearing constructed, and has the preceding teat of deviation mirror bearing of lengthening;
Fig. 7 illustrates another structure that ultrasound wave of the present invention is counted device with longitudinal profile and stereographic map, has the measurement assembly;
The shown in Figure 7 ultrasound wave counting device of Fig. 8 in pulling down state measured assembly;
Fig. 9 illustrates the deviation mirror standoff region of ultrasound wave counting device shown in Figure 7 with the vertical view along flow direction.
Embodiment
Fig. 1 illustrates the ultrasound wave counting device of a described type, it has a housing 1, a ultrasonic transducer 2 and an other ultrasonic transducer 3, and they are contained in the sidewall of housing 1 and by the affiliated lid that has seal by the shell nozzle that is provided with for this reason respectively and are fixed in the wall of housing 1.
For ultrasonic transducer 2 correspondences have disposed a deviation mirror 5, for another ultrasonic transducer 3 correspondences have disposed another deviation mirror 6.Measuring section 4 (that is to say the stroke of acoustical signal) is from ultrasonic transducer 2 to deviation mirror 5, from this deviation mirror to another deviation mirror 6, from this deviation mirror 6 to another transducer 3, returns from this transducer is reverse, therefore, measuring section is a U-shaped, but, also can have other deviation mirror (not shown) and the sound ray road (not shown) that the diagonal angle extends within the scope of the present invention.
The zone between two deviation mirrors 5 and 6 of measuring section 4 is surrounded by a measuring tube 7, and this measuring tube is fixed in the housing 1 by a measuring tube support 9.
Medium, the water of for example using flows into from the left side by the inlet that does not illustrate in Fig. 1, around deviation mirror 5, flow through, flow along measuring section 4, around another deviation mirror 6, flow through, in outlet (not illustrating equally) zone, leave ultrasound wave counting device then. Deviation mirror 5 and 6 is fixing by a deviation mirror bearing 8 respectively, only shows the deviation mirror bearing 8 in the zone that is positioned at deviation mirror 5 wherein in Fig. 1.
The problem of Cun Zaiing is in the prior art, in the time of around flowing through deviation mirror 5, particularly for example form a so-called recirculating zone again 16 in the surf zone of this deviation mirror, it is along with the progress of time can form deposition and can influence long-play on the deviation mirror surface.(exaggeration illustrates) marked deposition with symbol 19 in Fig. 2.Form the zone of returning eddy current 20 again along deviation mirror 5 surfaces and be known as recirculating zone again.
In Fig. 3, describe a structure of ultrasound wave counting device of the present invention in detail.A nozzle 12 that is used to produce shunting is arranged in the zone of deviation mirror bearing 8, and this shunting is directed abreast with this first deviation mirror in the upper area on the surface of first deviation mirror 5.This shunting stops to form returns eddy current 20 again, forms recirculating zone again thereby stop.This nozzle has slightly crooked trend and xsect extends to the deviation mirror surface with narrowing down gradually.Nozzle 12 meets the flat formation in destination, and like this, this shunting can arrive the surf zone of a broad of deviation mirror 5.
Under the situation of settling a plurality of relative bearing extensions 13, deviation mirror 5 is fixed on two faces that are parallel to each other.For the purpose of drawing was clear, Fig. 3 only showed wherein two.
Structure and arrangement based on nozzle 12, surface than the little shunting of main flow volume and first deviation mirror 5 at full speed arrives the upper end of first deviation mirror abreast, like this, avoid or reduced at least greatly in the surf zone of deviation mirror 5 to form and return eddy current 20 again.Because this shunting has only comprised of whole flow and has told part (cross-sectional area compares: in main flow is 50-400mm
2The time be 2-4mm
2), for example 1: 100 of whole flow, therefore, main flow can be because of shunting produce tangible error, thereby can the measurement characteristics that ultrasound wave is counted device not had a negative impact.
What meet purpose is, the deviation mirror bearing is made with the material with high elastic modulus, particularly uses plastics, and for example the plastics strengthened of fiber as PES, PSU, PPSU, PPA, PEI, PEEK/PEAK, comprise their derivant PPS or PPE.Particularly can coefficient of thermal expansion and housing (metal typically) be complementary by adding glass or carbon fibre.
The xsect of the bearing brace of deviation mirror bearing 8 is less, for example less than 4mm
2(for example 2x2mm) is so that the pressure loss can keep less and can ignore these braces at acoustic connection when flowing through around deviation mirror.What meet purpose is that the cross-sectional geometry of the brace of deviation mirror bearing 8 is shapes that help the medium eddy current, also will describe in detail later on as this point.
But also can select, the brace 22 (with reference to Fig. 7) of deviation mirror bearing 8 also produces rectified action to flowing, particularly enter the mouth to flow.
And the big foreign matter that may damage ultrasound wave counting device also can be diverted the brace 22 of mirror bearing 8 or device that their are formed blocks.These braces 22 can also sieve shape ground and constitute.
Fig. 4 A shows another configuration of the present invention.The deviation mirror bearing 8 that illustrates there is equivalent to the deviation mirror bearing 8 of configuration shown in Figure 3.In configuration shown in Fig. 4 A, be provided with the device of forming by guide vane 14 and replace nozzle.These guide vanes 14 are same to guarantee to form a corresponding shunting, this shunting on the upper end of deviation mirror 5 with the surperficial parallel orientation ground inflow of this deviation mirror.
In order to guarantee to make simply, particularly as the improved plastics structural shape manufacturing, the deviation mirror bearing 8 of Fig. 3 and configuration shown in Figure 4 constitutes with two half parts of vertically cutting open, as learning from Fig. 4 B.The mutual mirror-symmetrical of this two and half part ground constitutes.The guide vane 14 of each half part of deviation mirror bearing 8 can be used as the additional part that is provided with and settles or be integrated on this profiled member.
In addition, from Fig. 4 A as can be seen measuring tube 7 by its measuring tube support 9 and accommodation section 10 fixing that be used for measuring tube support 9.In Fig. 4 B, only show the same characteristic features of two and half parts of deviation mirror bearing 8 once.
Except pointed difference, all features of mentioning at the configuration of Fig. 3 equally also are suitable for the configuration of Fig. 4.
As from further learning Fig. 4 B and the 4C, deviation mirror 5 is the octagon formation and is fixed by bearing extension 13, and these bearing extensions are grasped in along on the diameter parallel edge respect to one another.Can guarantee especially reliably fixedly deviation mirror 5 by this.
What meet purpose is, first deviation mirror 5 is made up of a plate, this plate or be stamped or cut by water jet.
The above-mentioned embodiment of first deviation mirror 5 equally also is applicable to ultrasound wave counting device configuration and the following configuration of introducing shown in Figure 3.
In Fig. 5 A, only show deviation mirror 5 and relevant therewith deviation mirror bearing 8, in this configuration, produce a local depression, be used to produce a backflow 15 along the orientation of the surf zone of deviation mirror 5 by effect in the venturi.For this reason, the guide surface that is provided with an arching before the deviation mirror bearing on the surface of teat 18 connects same return flow line 17.Return flow line 17 streamwises extend from the plane, surperficial place of deviation mirror 5 slight curvature with coming out.Consequent backflow 15 has guaranteed that the sediment in the deviation mirror surf zone is aspirated lastingly, thereby has guaranteed the automatically cleaning effect.
Configuration is like this too shown in Fig. 5 B.Here, unique difference is, return flow line 17 by the deviation mirror bearing before teat 18 and an additional projection 21 that is provided with constitute.
Be provided with teat 18 before the deviation mirror bearing in configuration shown in Figure 6 equally, it has the guide surface of an arching from the teeth outwards.At this, teat 18 extends longlyer before the deviation mirror bearing, and like this, a surface lengthening, substantially flat evenly is connected on the upper end on surface of deviation mirror 5.Make again recirculating zone 16 be transferred in the zone of teat 18 before the deviation mirror bearing by this.Carry out surperficial parallel flowing basic and first deviation mirror 5 simultaneously, it can prevent to form deposition in this zone.
Fig. 7 shows another configuration of ultrasound wave counting device of the present invention with the longitudinal profile.Can find out the deviation mirror bearing 8 of streamlined moulding particularly well, comprise bearing brace 11.This deviation mirror bearing 8 is single profiled members, and it comprises the accommodation section 10 of measuring tube support 9 of accommodation section, bearing brace 11 and the measuring tube 7 of deviation mirror 5.
In configuration shown in Figure 7, deviation mirror bearing 8 is whole on the whole length of measuring section 4 to be constituted, and that is to say that it not only supports deviation mirror 5, but also supports another deviation mirror 6.In addition, deviation mirror bearing 8 remains in its position by a retaining element 22 that is installed in the center, by this, can reduce the manufacturing tolerance (because symmetry is fixing) of member.
Whole deviation mirror bearing 8 also holds measuring tube 7. for this reason simultaneously, observe transverse to measuring section 4, deviation mirror bearing 8 is divided into two parts, like this, corresponding deviation mirror 5 and deviation mirror 6 and measuring tube 7 can be loaded between two hull shape spares of deviation mirror bearing 8, thus the measurement assembly 25 (referring to Fig. 8) of Gou Chenging by around O- ring seal 23,24 are held togather. with this form, measuring assembly 25 can insert in the housing 1 of ultrasound wave counting device or take out with plain mode. in addition, O- ring seal 23,24 are used for a zone of plugging meter assembly 25, retaining element 22 is grasped on this zone. according to Fig. 8, deviation mirror bearing 8 has an opening 26, when measurement assembly 25 was in locked state, retaining element 22 inserted in these openings. and deviation mirror bearing 8 defiber in the vertical marks with reference symbol 27. and deviation mirror bearing 8 has comprised a plurality of holes 28. in the zone of measuring tube 7
Fig. 9 shows the vertical view of deviation mirror bearing 8 from seeing along the visual angle of flow direction.Deviation mirror bearing 8 comprises the bearing brace 11 that two right-angled intersections are extended, and reaches the rectification purpose by them.Deviation mirror 5 is positioned in the central area of deviation mirror bearing 8.
The various different characteristics of the ultrasound wave counting device form of implementation of introducing above of the present invention can adopt the any-mode mutual alternative.
Can provide a kind of new-type ultrasound wave counting device by the present invention, its deviation mirror does not bear sediment, therefore has better long-time stability.Simultaneously, this ultrasound wave counting device can simply and at low cost be made.Therefore, the present invention has substantial contribution to correlative technology field.
Claims (33)
1. be used for the ultrasound wave counting device of the flow of definite flow media, it has a housing (1); A measuring section (4) that is arranged in this housing (1) can carry out the transit time along this measuring section and measure; At least one ultrasonic transducer (2); At least one deviation mirror (5), by it the ultrasound wave of ultrasonic transducer (2) is turned to, it is characterized by, in the zone of described at least one deviation mirror (5), be provided with the mechanism that on purpose influences the stream in the deviation mirror surf zone, described mechanism is positioned on the deviation mirror bearing (8), this deviation mirror bearing has teat (18) before the deviation mirror bearing, and, before this deviation mirror bearing teat (18) constituted one with concordant substantially, the flat lateral surfaces extension in deviation mirror surface.
2. according to the described ultrasound wave counting of claim 1 device, it is characterized by, described mechanism comprises the guiding device of the shunting that is used at least one orientation.
3. according to claim 1 or 2 described ultrasound waves counting devices, it is characterized by, described mechanism is arranged in the zone of upper end of deviation mirror (5).
4. according to claim 1 or 2 described ultrasound wave counting devices, it is characterized by, described mechanism is positioned on the deviation mirror (5).
5. according to claim 1 or 2 described ultrasound wave counting devices, it is characterized by, described mechanism comprises a preceding teat (18) of lip-deep deviation mirror bearing that substantially evenly abuts in deviation mirror (5).
6. according to claim 1 or 2 described ultrasound wave counting devices, it is characterized by, described mechanism comprises at least one nozzle (12).
7. according to claim 1 or 2 described ultrasound wave counting devices, it is characterized by, described mechanism comprises at least one guide piece.
8. according to the described ultrasound wave counting of claim 6 device, it is characterized by, described nozzle (12) is positioned at deviation mirror (5), in the deviation mirror bearing (8), perhaps between deviation mirror (5) and the deviation mirror bearing (8).
9. according to the described ultrasound wave counting of claim 6 device, it is characterized by, described nozzle (12) is arching.
10. according to the described ultrasound wave counting of claim 7 device, it is characterized by, described guide piece is arching.
11. according to claim 9 or 10 described ultrasound wave counting devices, it is characterized by, be provided with a return flow line (17).
12. according to the described ultrasound wave of claim 11 counting device, it is characterized by, this return flow line (17) extend to such an extent that pass an extension of teat (18) before the deviation mirror bearing.
13. according to the described ultrasound wave counting of claim 1 device, it is characterized by, described flow media is liquid or gas.
14. according to the described ultrasound wave counting of claim 1 device, it is characterized by, can carry out the transit time difference measurements along this measuring section.
15. according to the described ultrasound wave counting of claim 2 device, it is characterized by, in the upper area of described at least one deviation mirror (5), this shunting is basically parallel to the surface orientation of first deviation mirror (5) of described at least one deviation mirror.
16. according to the described ultrasound wave counting of claim 7 device, it is characterized by, described at least one guide piece is at least one guide vane (14).
17. according to the described ultrasound wave of claim 11 counting device, it is characterized by, described return flow line is set in the zone of upper end of deviation mirror (5).
18., it is characterized by according to claim 2 or 15 described ultrasound wave counting devices, to compare with main flow, shunting has bigger flowing velocity.
19. according to claim 2 or 15 described ultrasound wave counting devices, it is characterized by, shunt ratio≤1: 20 with whole stream.
20. according to the described ultrasound wave of claim 19 counting device, it is characterized by, the ratio of shunting and whole stream is in 1: 20 to 1: 130 scope.
21. according to the described ultrasound wave counting of claim 1 device, it is characterized by, deviation mirror bearing (8) is made up of two half parts that separate in the vertical.
22. according to the described ultrasound wave counting of claim 21 device, it is characterized by, deviation mirror bearing (8) has the device that is used for fixing measuring tube (7).
23. according to the described ultrasound wave counting of claim 21 device, it is characterized by, each deviation mirror (5) self has the installed surface that is parallel to each other.
24. according to the described ultrasound wave counting of claim 21 device, it is characterized by, deviation mirror bearing (8) not only carries a deviation mirror (5), but also carries another deviation mirror (6), this deviation mirror bearing is maintained in the position by a retaining element (22).
25. according to the described ultrasound wave counting of claim 21 device, it is characterized by, described flow media is liquid or gas.
26. according to the described ultrasound wave counting of claim 21 device, it is characterized by, can carry out the transit time difference measurements along described measuring section.
27. according to the described ultrasound wave counting of claim 24 device, it is characterized by, described retaining element is placed in the center by relative deviation mirror bearing.
28. according to the described ultrasound wave counting of claim 1 device, it is characterized by, deviation mirror bearing (8), deviation mirror (5,6) and measuring tube (7) can be taken out or be inserted from the housing (1) of ultrasound wave counting device in the housing of this ultrasound wave counting device as a unit.
29. according to the described ultrasound wave counting of claim 28 device, it is characterized by, this ultrasonic transducer (2) or these ultrasonic transducers are positioned at the housing (1) of ultrasound wave counting device.
30. according to the described ultrasound wave of claim 28 counting device, it is characterized by, deviation mirror bearing (8) by at least one O-ring seal (23,24) around.
31. according to the described ultrasound wave counting of claim 28 device, it is characterized by, described flow media is liquid or gas.
32. according to the described ultrasound wave counting of claim 28 device, it is characterized by, can carry out the transit time difference measurements along described measuring section.
33. according to the described ultrasound wave of claim 30 counting device, it is characterized by, deviation mirror bearing (8) by two O-ring seals (23,24) around.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004010408.5 | 2004-03-01 | ||
| DE200410010408 DE102004010408A1 (en) | 2004-03-01 | 2004-03-01 | Ultrasonic flowmeter has an ultrasonic transducer and ultrasound mirror that has an additional flow guide for optimizing the fluid flow over its surface |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810176267 Division CN101476911B (en) | 2004-03-01 | 2004-09-29 | Ultrasonic counter for determining flux of yielding medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664514A CN1664514A (en) | 2005-09-07 |
| CN1664514B true CN1664514B (en) | 2010-05-12 |
Family
ID=34877313
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410083200 Active CN1664514B (en) | 2004-03-01 | 2004-09-29 | Ultrasonic counter for determining flux of yielding medium |
| CN 200810176267 Active CN101476911B (en) | 2004-03-01 | 2004-09-29 | Ultrasonic counter for determining flux of yielding medium |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810176267 Active CN101476911B (en) | 2004-03-01 | 2004-09-29 | Ultrasonic counter for determining flux of yielding medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN1664514B (en) |
| DE (1) | DE102004010408A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053860B4 (en) * | 2004-11-04 | 2009-04-16 | Hydrometer Gmbh | Ultrasonic counter for determining the flow rate of a flowing medium |
| EP1995570A1 (en) * | 2007-05-25 | 2008-11-26 | Kamstrup A/S | An ultrasound flow meter |
| DE102008049891B4 (en) | 2008-10-02 | 2012-12-06 | Hydrometer Gmbh | Flow straightener for a flowmeter, in particular an ultrasonic measuring device |
| EP2230490A1 (en) * | 2009-03-16 | 2010-09-22 | Kamstrup A/S | Positioning of elements in flow meter housings |
| PL2375224T3 (en) * | 2010-03-18 | 2016-07-29 | Sick Engineering Gmbh | Ultrasound measuring device and method for monitoring the flow speed of a liquid |
| DE102010033858A1 (en) * | 2010-07-21 | 2012-01-26 | Hydrometer Gmbh | Housing for an ultrasonic measuring device for measuring a fluid flow and method for producing a housing |
| DE102010020338A1 (en) * | 2010-05-12 | 2011-11-17 | Hydrometer Gmbh | Housing arrangement for ultrasonic flowmeter and ultrasonic flowmeter |
| CN102637046A (en) * | 2012-04-23 | 2012-08-15 | 江苏迈拓智能仪表有限公司 | Ultrasound metering and flow control system |
| CN103940480B (en) * | 2014-04-10 | 2018-05-01 | 重庆市伟岸测器制造股份有限公司 | A kind of water meter |
| CN103983312B (en) * | 2014-06-03 | 2017-07-28 | 威海市天罡仪表股份有限公司 | Bullet-nose flow straightener |
| CN104764499B (en) * | 2015-04-16 | 2018-03-30 | 威海市天罡仪表股份有限公司 | Ultrasonic flowmeter |
| US10823597B2 (en) * | 2017-12-14 | 2020-11-03 | Arad Ltd. | Ultrasonic water meter including a metallic outer body and polymeric inner lining sleeve |
| CN110400360B (en) * | 2019-07-25 | 2021-03-19 | 北京航空航天大学 | Sound wave transit time detection method based on full convolution neural network |
| CN111457977B (en) * | 2020-02-29 | 2021-09-24 | 浙江威星智能仪表股份有限公司 | Ultrasonic gas meter time sampling method aiming at pulsating flow influence |
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| EP0559938A1 (en) * | 1992-03-11 | 1993-09-15 | Siemens Aktiengesellschaft | Ultrasonic through put measuring device for liquids |
| EP0897102A1 (en) * | 1997-08-14 | 1999-02-17 | Electrowatt Technology Innovation AG | Ultrasonic flowmeter |
| EP1235057A2 (en) * | 2001-02-24 | 2002-08-28 | Hydrometer GmbH | Ultrasound mass flow meter using a free jet |
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| US4610167A (en) * | 1984-07-23 | 1986-09-09 | Westinghouse Electric Corp. | Apparatus for measuring flow velocity of fluids |
| EP0392294A1 (en) * | 1989-04-13 | 1990-10-17 | Siemens Aktiengesellschaft | Fluid flowmeter for measuring ultrasound transit times |
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2004
- 2004-03-01 DE DE200410010408 patent/DE102004010408A1/en not_active Withdrawn
- 2004-09-29 CN CN 200410083200 patent/CN1664514B/en active Active
- 2004-09-29 CN CN 200810176267 patent/CN101476911B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0559938A1 (en) * | 1992-03-11 | 1993-09-15 | Siemens Aktiengesellschaft | Ultrasonic through put measuring device for liquids |
| EP0897102A1 (en) * | 1997-08-14 | 1999-02-17 | Electrowatt Technology Innovation AG | Ultrasonic flowmeter |
| EP1235057A2 (en) * | 2001-02-24 | 2002-08-28 | Hydrometer GmbH | Ultrasound mass flow meter using a free jet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101476911A (en) | 2009-07-08 |
| CN1664514A (en) | 2005-09-07 |
| DE102004010408A1 (en) | 2005-09-22 |
| CN101476911B (en) | 2013-03-20 |
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