CN2566231Y - Double-detection swirl flowmeter - Google Patents
Double-detection swirl flowmeter Download PDFInfo
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- CN2566231Y CN2566231Y CN 02244277 CN02244277U CN2566231Y CN 2566231 Y CN2566231 Y CN 2566231Y CN 02244277 CN02244277 CN 02244277 CN 02244277 U CN02244277 U CN 02244277U CN 2566231 Y CN2566231 Y CN 2566231Y
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- detection
- detection probe
- flow detection
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Abstract
The utility model relates to a screwed swirl flowmeter, which can cause detection results to be accurate and reliable. The utility model relates to a double-detection screwed swirl flowmeter, which comprises a sensor, a connecting member, an integrating displayer and a differential mode circuit. The utility model is characterized in that the inner part of the sensor is provided with at least two flow detection probes which are arranged at different detection areas or asymmetry positions at the same region, and vibration resistance can be enhanced. The utility model is used for fluid measurement and detection.
Description
Technical fieldThe utility model relates to swirl flowmeter, is meant a kind of vortex precession flowmeter especially.
Background technology
Existing vortex precession flowmeter is the first-selected product of present domestic gas and natural-gas metering, but because the piezoelectric type detection probe is highly sensitive, when blank pipe or low discharge, the undesired signal that pipeline vibration produces can detected be entered too, causes the metering cumulative errors.Present existing like product is to lay two detecting devices in same detection zone symmetric position, and when direction of vibration changed, the detected signal phase of two detecting devices was also along with change.When the instrument latus rectum not simultaneously, it is also different to produce vortex frequency, just the distance between frequency is different, therefore same detection zone symmetry the detected signal phase in detection position also can change, so just can not distinguish the undesired signal that normal flow signal and pipeline vibration cause effectively; Cause metering puzzlement and integrating error thus, cause the accuracy of flowmeter, reliability to reduce.
Summary of the invention
The purpose of this utility model is to get rid of the undesired signal that is caused by pipeline vibration, reduces error in dipping, and a kind of comparatively accurate, reliable two vortex precession flowmeters that detect are provided.
The purpose of this utility model is achieved in that two vortex precession flowmeters that detect, and it comprises: sensor, web member and integrating display instrument, and be provided with the differential mode circuit, it is characterized in that: in sensor, be provided with at least two detection probe.
Above-mentioned design, different surveyed areas or in flowmeter is flowmeter sensor in the asymmetric position of same measured zone, lay a plurality of detection probe, detect normal discharge signal and undesired signal simultaneously, utilize the differential mode circuit that two kinds of signals are distinguished, suppress the vibration interference signal, reach the raising resistance to shock, reduce the purpose of error in dipping, make and detect metering comparatively accurately with reliable.
Description of drawings
Fig. 1 is the main apparent structure synoptic diagram of embodiment one of the present utility model;
Fig. 2 is the side cross-sectional schematic of embodiment two of the present utility model.
Embodiment
As shown in Figure 1, 2: the utility model comprises: sensor 10, web member 20 and integrating display instrument 30, and be provided with the differential mode circuit, it is characterized in that: in sensor 10, be provided with at least two flow detection probe A, B.Wherein, flow detection probe A, B adopt piezoelectric crystal to make detecting element;
As shown in Figure 1: wherein, flow detection probe A, B are in different surveyed areas respectively, and promptly the flow detection probe A is positioned at the flow detection sensitizing range, and another flow detection probe B is positioned at its downstream.
As shown in Figure 2: wherein, flow detection probe A, B lay respectively at same surveyed area, but are asymmetric setting, promptly are positioned at the asymmetric position of same surveyed area.
In addition, the utility model, wherein, flow detection probe quantity is more than 2 or 2.But these flow detection probes should be provided with the asymmetric position of different surveyed areas or the same area certainly, like this, can reach same good detection effect, accurately, reliably.
Claims (4)
1, two detection vortex precession flowmeters, it comprises: sensor, web member and integrating display instrument, and be provided with the differential mode circuit, it is characterized in that: in sensor, be provided with at least two flow detection probes.
2, two vortex precession flowmeter that detects as claimed in claim 1, it is characterized in that: wherein, the flow detection probe all adopts piezoelectric crystal to make detecting element.
3, two vortex precession flowmeter that detects as claimed in claim 1, it is characterized in that: wherein, the flow detection probe is in different surveyed areas respectively, and promptly detection probe is positioned at the flow detection sensitizing range, and another detection probe is positioned at its downstream.
4, two vortex precession flowmeter that detects as claimed in claim 1, it is characterized in that: wherein, the flow detection probe lays respectively at same surveyed area, but is asymmetric setting, promptly is positioned at the asymmetric position of same surveyed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244277 CN2566231Y (en) | 2002-08-01 | 2002-08-01 | Double-detection swirl flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244277 CN2566231Y (en) | 2002-08-01 | 2002-08-01 | Double-detection swirl flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2566231Y true CN2566231Y (en) | 2003-08-13 |
Family
ID=33716208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02244277 Expired - Fee Related CN2566231Y (en) | 2002-08-01 | 2002-08-01 | Double-detection swirl flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2566231Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473187B (en) * | 2006-06-23 | 2011-12-07 | Skf公司 | Vibration and condition monitoring system and the parts thereof |
| CN103148900A (en) * | 2012-12-04 | 2013-06-12 | 山东迪泽仪表科技有限公司 | Natural gas trade flow meter |
-
2002
- 2002-08-01 CN CN 02244277 patent/CN2566231Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473187B (en) * | 2006-06-23 | 2011-12-07 | Skf公司 | Vibration and condition monitoring system and the parts thereof |
| CN103148900A (en) * | 2012-12-04 | 2013-06-12 | 山东迪泽仪表科技有限公司 | Natural gas trade flow meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUMA METER CO., LTD., ZHEJIANG Free format text: FORMER NAME OR ADDRESS: WENZHOU FUMA INSTRUMENT AND METERS FACTORY |
|
| CP03 | Change of name, title or address |
Address after: The South Bank of Longwan Xiang chariotest Yongzhong Village District of Wenzhou City, Zhejiang Province, No. 1 325024 Patentee after: Fuma Instrument Co., Ltd., Zhejiang Prov. Patentee before: Wenzhou Fuma Instrument and Meter Factory |
|
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120711 Granted publication date: 20030813 Pledgee: Bank of Wenzhou Limited by Share Ltd Ouhai branch Pledgor: Fuma Instrument Co., Ltd., Zhejiang Prov. Registration number: 2009330000639 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030813 Termination date: 20110801 |