CN202182742U - High-accuracy cone pressure tapping flow meter - Google Patents
High-accuracy cone pressure tapping flow meter Download PDFInfo
- Publication number
- CN202182742U CN202182742U CN2011202773843U CN201120277384U CN202182742U CN 202182742 U CN202182742 U CN 202182742U CN 2011202773843 U CN2011202773843 U CN 2011202773843U CN 201120277384 U CN201120277384 U CN 201120277384U CN 202182742 U CN202182742 U CN 202182742U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- pressure tapping
- pipe
- ring groove
- measuring tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A high-accuracy cone pressure tapping flow meter relates to a measuring device for the flow of fluid in a pipeline. The high-accuracy cone pressure tapping flow meter is provided with a measuring pipe; two ends of the measuring pipe are respectively provided with a connecting flange; a conical throttling body is arranged inside the measuring pipe; a positive pressure tapping circular groove and a negative pressure tapping circular groove are respectively arranged on the measuring pipe at the front side and the back side of the conical throttling body; at least two positive pressure tapping openings are arranged on the measuring pipe at the inner side of the positive pressure tapping circular groove; at least two negative pressure tapping openings are arranged on the measuring pipe at the inner side of the negative pressure tapping circular groove; a positive pressure taping pipe and a negative pressure tapping pipe are respectively arranged on the positive pressure tapping circular groove and the negative pressure tapping circular groove and are connected with a differential pressure transmitter. The differential pressure measured by the positive pressure taping pipe and the negative pressure tapping pipe is an average pressure difference of the front side and the back side of the inner conical throttling body of the measuring pipe, which is obtained by the plurality of pressure tapping openings, so that the measured data is stable and has little fluctuation; and the measuring accuracy of the flow meter is high.
Description
Technical field
The utility model relates to the measurement mechanism of pipeline inner fluid flow, is a kind of high precision conical body pressure tapping flowmeter specifically.
Background technology
We know; Existing conical body pressure tapping flowmeter is, is provided with measuring tube, and the measuring tube two ends are respectively equipped with joint flange; Measuring tube inside is provided with conical throttling bodies; Be respectively equipped with positive pressure tappings and negative pressure tappings on the measuring tube of both sides before and after the conical throttling bodies, be respectively equipped with positive pressure pipe and negative pressure pipe on positive pressure tappings and the negative pressure tappings, positive pressure pipe is connected differential pressure transmitter with negative pressure pipe.This conical body pressure tapping flowmeter, the differential pressure that records are the pressure differentials at interior positive pressure tappings of measuring tube and negative pressure tappings two places, and the data that record are unstable, fluctuation is big, and measuring accuracy is low.
Summary of the invention
The purpose of the utility model is the deficiency that solves above-mentioned prior art, provides a kind of data stabilization, fluctuation little, the high precision conical body pressure tapping flowmeter that measuring accuracy is high.
The utility model is realized through following technical scheme:
A kind of high precision conical body pressure tapping flowmeter; Be provided with measuring tube; The measuring tube two ends are respectively equipped with joint flange, and measuring tube inside is provided with conical throttling bodies, it is characterized in that being respectively equipped with to officially enroll on the measuring tube of both sides before and after the conical throttling bodies pressing ring groove and negative pressure ring groove; Officially enroll and press the inboard measuring tube of ring groove to be provided with at least two positive pressure tappings; The inboard measuring tube of negative pressure ring groove is provided with at least two negative pressure tappings, and officiallying enroll to press on ring groove and the negative pressure ring groove is respectively equipped with positive pressure pipe and negative pressure pipe, and positive pressure pipe is connected differential pressure transmitter with negative pressure pipe.
Press ring groove and negative pressure ring groove because being respectively equipped with on the measuring tube of both sides before and after the conical throttling bodies officiallys enroll; Officially enroll and press the inboard measuring tube of ring groove to be provided with several positive pressure tappings; The inboard measuring tube of negative pressure ring groove is provided with several negative pressure tappings; Officially enroll to press on ring groove and the negative pressure ring groove and be respectively equipped with positive pressure pipe and negative pressure pipe
The utility model is through the differential pressure that positive pressure pipe and negative pressure pipe record, and is the average differential pressure of both sides before and after the measuring tube inner conical throttling bodies obtained of several pressure tappings, and the data stabilization that records, fluctuation are little, and the measuring accuracy of flowmeter is high.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is Fig. 1 right view.
Embodiment
High precision conical body pressure tapping flowmeter as shown in the figure is provided with measuring tube 6, and measuring tube 6 two ends are provided with joint flange 9,4, and measuring tube inside is provided with conical throttling bodies 7, and as can be seen from the figure, conical throttling bodies 7 is installed in the measuring tube through support 2.The circumferencial direction of the measuring tube upper edge pipe of both sides, conical throttling bodies 7 front and back is respectively equipped with to officially enroll presses ring groove 8 and negative pressure ring groove 5; Officially enroll and press ring groove 8 inboard measuring tubes to be provided with at least two positive pressure tappings; Negative pressure ring groove 5 inboard measuring tubes are provided with at least two negative pressure tappings; Officiallying enroll to press is respectively equipped with positive pressure pipe 1 and negative pressure pipe 3 on ring groove and the negative pressure ring groove, positive pressure pipe 1 is connected differential pressure transmitter with negative pressure pipe 3.Press ring groove and negative pressure ring groove because being respectively equipped with on the measuring tube of both sides before and after the conical throttling bodies officiallys enroll; Officially enroll and press the inboard measuring tube of ring groove to be provided with several positive pressure tappings; The inboard measuring tube of negative pressure ring groove is provided with several negative pressure tappings; Officially enroll to press on ring groove and the negative pressure ring groove and be respectively equipped with positive pressure pipe and negative pressure pipe; The pressure of obtaining through positive pressure pipe and negative pressure pipe; Be the officially enroll mean pressure of several the negative pressure tappings in the mean pressure of pressing several the positive pressure tappings in the ring groove and the negative pressure ring groove of throttling bodies rear side of measuring tube inner conical throttling bodies front side, the data stabilization that records, fluctuation are little, the measuring accuracy height of flowmeter.
Claims (1)
1. high precision conical body pressure tapping flowmeter; Be provided with measuring tube; The measuring tube two ends are respectively equipped with joint flange, and measuring tube inside is provided with conical throttling bodies, it is characterized in that being respectively equipped with to officially enroll on the measuring tube of both sides before and after the conical throttling bodies pressing ring groove and negative pressure ring groove; Officially enroll and press the inboard measuring tube of ring groove to be provided with at least two positive pressure tappings; The inboard measuring tube of negative pressure ring groove is provided with at least two negative pressure tappings, and officiallying enroll to press on ring groove and the negative pressure ring groove is respectively equipped with positive pressure pipe and negative pressure pipe, and positive pressure pipe is connected differential pressure transmitter with negative pressure pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202773843U CN202182742U (en) | 2011-08-02 | 2011-08-02 | High-accuracy cone pressure tapping flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202773843U CN202182742U (en) | 2011-08-02 | 2011-08-02 | High-accuracy cone pressure tapping flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182742U true CN202182742U (en) | 2012-04-04 |
Family
ID=46175775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202773843U Expired - Fee Related CN202182742U (en) | 2011-08-02 | 2011-08-02 | High-accuracy cone pressure tapping flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182742U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814317A (en) * | 2013-12-17 | 2016-07-27 | 曼柴油机和涡轮机欧洲股份公司 | Compressor stage |
| CN106017599A (en) * | 2016-06-27 | 2016-10-12 | 苏州科博思流体科技有限公司 | Flanged flowmeter with multiple connecting holes |
| CN108362907A (en) * | 2018-05-04 | 2018-08-03 | 刘冠宏 | A kind of fluid velocity measuring device |
-
2011
- 2011-08-02 CN CN2011202773843U patent/CN202182742U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814317A (en) * | 2013-12-17 | 2016-07-27 | 曼柴油机和涡轮机欧洲股份公司 | Compressor stage |
| CN106017599A (en) * | 2016-06-27 | 2016-10-12 | 苏州科博思流体科技有限公司 | Flanged flowmeter with multiple connecting holes |
| CN108362907A (en) * | 2018-05-04 | 2018-08-03 | 刘冠宏 | A kind of fluid velocity measuring device |
| CN108362907B (en) * | 2018-05-04 | 2024-03-22 | 刘冠宏 | Fluid velocity measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20160802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |