CN2239014Y - Large calibre inserted wortex street flowmeter - Google Patents
Large calibre inserted wortex street flowmeter Download PDFInfo
- Publication number
- CN2239014Y CN2239014Y CN 95243540 CN95243540U CN2239014Y CN 2239014 Y CN2239014 Y CN 2239014Y CN 95243540 CN95243540 CN 95243540 CN 95243540 U CN95243540 U CN 95243540U CN 2239014 Y CN2239014 Y CN 2239014Y
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- measuring head
- shell body
- housing
- support member
- utility
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Abstract
The utility model relates to a large calibre inserted type wortex street flow meter, comprising a convertor, a flange support member, a measuring head, etc. The support member is provided with a shell body which is integrated with the support member. The shell body of the measuring head is made into the large curvature circular arc type structure. The relative distance between the geometric centre of the shell body of the measuring head and the geometric centre of the shell body of the support member is 0.24R. The measuring head is also provided with a stress type double detecting element vortex generating body. As the utility model adopts the structures, the utility model has good vibration resistance performance and small pressing damage, the size of the shell body is designedas required, the error generated by the installation technology is avoided, and the high accuracy is achieved.
Description
The utility model relates to a kind of flowmeter, and particularly a kind of heavy caliber plug-in type vortex shedding flow meter belongs to the flow measurement instrument class.
Along with the continuous development of scientific and technological cause is particularly more and more urgent to the demand of flow measurement instrument in the industrial or agricultural field, especially the large diameter pipeline flow measurement problem existing classic method that becomes increasingly conspicuous all is to insert one type flowmeter probe in large pipeline, the flow velocity of the pipeline section by the measuring sonde position, further measure ducted flow again, Here it is plug-in type flow meter.Though that this kind flowmeter has is simple in structure, the cost low weight light, advantages such as easier are installed, but because its probe is not with housing, be directly installed on the pipeline by the user, cause the insertion depth of probe and position often to bring undeterminable large deviation, measuring accuracy just can't guarantee like this.Relevant in recent years industry is constantly developed improvement to this series products, as China Patent No. is 86108400 (denomination of invention one eddy-current instruments), 86104243 (swirl flowmeters), 922251371 (a kind of vortex flow sensors) etc., though but these product precision improve, can't reach high precision, especially the high-precision vortex shedding flow meter of heavy caliber plug-in type also comes out at the end.
The purpose of this utility model provides simpler, the high-precision heavy caliber plug-in type of a kind of structure vortex shedding flow meter.
The utility model is achieved in that it comprises that converter, flange, supporting member, measurement are first-class, simultaneously a housing is set also on supporting member, and fuses with supporting member, and the bore of housing is about 200mm～2000mm.
The housing of above-mentioned measuring head is to make the deep camber convex structure, the relative distance between the geometric center of the housing on itself and the above-mentioned supporting member be 0.242R wherein R be the radius of supporting member upper shell.
The vortex generation body of the two detecting elements of one stress-type also is set in above-mentioned measuring head.
Because the utility model heavy caliber plug-in type vortex shedding flow meter is to adopt said structure, so it can reach high precision, and have more excellent resistance to shock and little crushing, some bore pipeline can also be realized the full packages measurement, because the big I of the housing on the supporting member designs by user's request, so avoided the user can't guarantee the error that causes owing to mounting process, so just can reach the requirement of gratifying high precision, its precision can reach 1.5 grades when using if with the housing on the supporting member directly and pipeline join.
The utility model is described in further detail for an embodiment below in conjunction with accompanying drawing.
Fig. 1 is the front elevation of the utility model structural representation.
Fig. 2 is the side view of Fig. 1.
As shown in Figure 1, 2, earlier in the vortex generation body 6 dress measuring heads 5 with the two detecting elements of stress-type, the housing of measuring head 5 is to make the deep camber convex structure, again converter 1 is fitted together with it, promptly be assembled into one after connecting with flange 2, reinstall in the housing unit that is assembled into by supporting member 3, flange 4, housing 7, the relative distance during assembling between the geometric center of the housing of measuring head 5 and housing 7 will remain on about 0.242-R, and wherein R is the radius of housing 7.This kind flowmeter is easy to use, the bore of housing 7 can design by user's request, as bore is 400mm, then the relative distance between the geometric center of the housing of measuring head 5 and housing 7 is about 48.4mm, just can reach gratifying high precision this moment, precision can reach 1.5 grades, and existing plug-in type flow meter even ± 3% precision also can't guarantee.
Claims (3)
1. a heavy caliber plug-in type vortex shedding flow meter comprises converter 1, flange 2.4, supporting member 3, measuring head 5, it is characterized in that also being provided with on supporting member 3 housing 7, and fuses with supporting member 3, and its bore is about 200mm～2000mm.
2. by the described heavy caliber plug-in type of claim 1 vortex shedding flow meter, the housing that it is characterized in that described measuring head 5 is a convex structure of making deep camber, and the relative distance between the geometric center of itself and housing 7 is 0.242R, and wherein R is the radius of housing 7.
3. by claim 1,2 described heavy caliber plug-in type vortex shedding flow meters, it is characterized in that in described measuring head 5, also being provided with the vortex generation body 6 of the two detecting elements of a stress-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95243540 CN2239014Y (en) | 1995-03-06 | 1995-03-06 | Large calibre inserted wortex street flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95243540 CN2239014Y (en) | 1995-03-06 | 1995-03-06 | Large calibre inserted wortex street flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239014Y true CN2239014Y (en) | 1996-10-30 |
Family
ID=33884123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95243540 Expired - Fee Related CN2239014Y (en) | 1995-03-06 | 1995-03-06 | Large calibre inserted wortex street flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239014Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349580B (en) * | 2007-07-19 | 2011-03-02 | 上海星空自动化仪表有限公司 | Large caliber vortex shedding flowmeter |
-
1995
- 1995-03-06 CN CN 95243540 patent/CN2239014Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349580B (en) * | 2007-07-19 | 2011-03-02 | 上海星空自动化仪表有限公司 | Large caliber vortex shedding flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |