CN102590549A - Flow velocity and water level measurement device for river channel - Google Patents
Flow velocity and water level measurement device for river channel Download PDFInfo
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- CN102590549A CN102590549A CN2012100752470A CN201210075247A CN102590549A CN 102590549 A CN102590549 A CN 102590549A CN 2012100752470 A CN2012100752470 A CN 2012100752470A CN 201210075247 A CN201210075247 A CN 201210075247A CN 102590549 A CN102590549 A CN 102590549A
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Abstract
A flow velocity and water level measurement device for a river channel relates to the technical field of measurement devices and aims at improving measurement accuracy. The device comprises a liquid level sensor, a flow velocity sensor and a converter which is electrically connected with the liquid level sensor. The device is characterized by further comprising a stilling well which is a vertical well. Openings at the upper end and the lower end of the stilling well are respectively provided with an end connecting flange, a water through hole and a flow velocity measurement hole are arranged on the well wall, the flow velocity measurement hole is lower than the water through hole, and a lateral connecting flange is arranged on the flow velocity measurement hole. The liquid level sensor is arranged on the end connecting flange at the upper end of the stilling well, and a measurement head of the liquid level sensor extends into a well cavity of the stilling well. The flow velocity sensor is an electromagnetic flow velocity sensor and is arranged on the lateral connecting flange, axes of two measurement electrodes of the flow velocity sensor are perpendicular. The flow velocity and water level measurement device for the river channel has high measurement accuracy.
Description
Technical field
The present invention relates to the measuring equipment technology, particularly relate to the technology of a kind of river course flow velocity level measurement device.
Background technology
River course flow velocity level measurement device mainly is made up of converter, liquid level gauge, velocimeter; Existing river course flow velocity level measurement device is when measuring river course flow velocity and water level; All liquid level gauge is directly installed on the overhead river surface of directly measuring the river course in river course, velocimeter then is directly installed on the bottom in river course.
Existing waterway flow velocity level measurement device has following defective: 1) because river flows is to fluctuate very greatly, river surface is less stables all usually, thus existing waterway flow velocity level measurement device to utilize liquid level gauge directly to measure the mode measuring error of river surface all bigger; 2) velocimeter is directly installed on the mode of bottom, river course measurement flow rate, is easy to cause flow sensor to be stopped up by mud, can influence the fluid-velocity survey precision.
Summary of the invention
To the defective that exists in the above-mentioned prior art, technical matters to be solved by this invention provides the high river course flow velocity level measurement device of a kind of measuring accuracy.
In order to solve the problems of the technologies described above, a kind of river course provided by the present invention flow velocity level measurement device comprises liquid level sensor, flow sensor, converter, and said liquid level sensor and converter are electrically connected; It is characterized in that: also comprise a stilling well;
Said stilling well is a vertical shaft, and two ends well head respectively is provided with an end joint flange about it, offers a limbers, a flow velocity measured hole on its borehole wall, and said fluid-velocity survey hole is lower than the limbers, and on the fluid-velocity survey hole, is provided with a sidepiece joint flange;
Said liquid level sensor is installed on the end joint flange of stilling well upper end, and its measuring head stretches into stilling well well chamber;
Said flow sensor is an electromagnetic current speed sensors, is installed on the sidepiece joint flange, and the axis of its two potential electrode is vertical.
Further, said liquid level sensor is a throw-in type liquid level sensor.
Further, said liquid level sensor is a ultrasonic liquid level sensor, and the ultrasonic emitting face of its measuring head is perpendicular to the axis of stilling well.
River course provided by the invention flow velocity level measurement device; Utilize the limbers that river is introduced stilling well, because liquid level is consistent with the liquid level of river surface in the stilling well, and liquid level is stable more a lot of than river surface in the stilling well; Therefore utilize the measured liquid level error of the interior liquid level of liquid level sensor measuring stationary well very little; Can improve the level gauging precision, and flow sensor is installed on the stilling well, keeps certain distance with the river bed; Can effectively avoid flow sensor blocked, therefore can also improve the fluid-velocity survey precision.
Description of drawings
Fig. 1 is the front view of the river course flow velocity level measurement device of first embodiment of the invention;
Fig. 2 is the side-looking cut away view of the river course flow velocity level measurement device of first embodiment of the invention;
Fig. 3 is the side-looking cut away view of the river course flow velocity level measurement device of second embodiment of the invention.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
Like Fig. 1-shown in Figure 2, a kind of river course flow velocity level measurement device that first embodiment of the invention provided comprises liquid level sensor 11, flow sensor 12, converter 13, and said liquid level sensor 11 is electrically connected with converter 13; It is characterized in that: also comprise a stilling well 14;
Said stilling well 14 is the system of moulding vertical shafts of a PVC material; Two ends well head respectively is provided with an end joint flange 15 about it; Offer a limbers 16, a flow velocity measured hole on its borehole wall, said fluid-velocity survey hole is lower than limbers 16, and on the fluid-velocity survey hole, is provided with a sidepiece joint flange 17;
Said liquid level sensor 11 is throw-in type liquid level sensors, is installed on the end joint flange 15 of stilling well 14 upper ends, and its measuring head stretches into stilling well well chamber;
Said flow sensor 12 is electromagnetic current speed sensors, is installed on the sidepiece joint flange 17, and the axis of its two potential electrode is vertical.
When first embodiment of the invention is used; End joint flange through the stilling well lower end is fixed on stilling well on the riverbed in tested river course, and makes flow sensor exceed the river bed certain distance, to prevent Ha Noi sediment choked flow speed sensors; It after installing the flow velocity of flow sensor measures river capable of using; Because offer the limbers on the stilling well borehole wall, river can get in the stilling well from the limbers, liquid level and river course liquid level in the stilling well are consistent; Utilize liquid level in the liquid level sensor measuring stationary well, can record the river course liquid level.
In the first embodiment of the invention, said flow sensor is a prior art, is based on the electromagnetic flow transducer of faraday's principle.
A kind of river course flow velocity level measurement device as shown in Figure 3, that second embodiment of the invention provided comprises liquid level sensor 21, flow sensor 22, converter 23, and said liquid level sensor 21 is electrically connected with converter 23; It is characterized in that: also comprise a stilling well 24;
Said stilling well 24 is the system of moulding vertical shafts of a PVC material; Two ends well head respectively is provided with an end joint flange 25 about it; Offer a limbers 26, a flow velocity measured hole on its borehole wall, said fluid-velocity survey hole is lower than limbers 26, and on the fluid-velocity survey hole, is provided with a sidepiece joint flange 27;
Said liquid level sensor 21 is ultrasonic liquid level sensors, is installed on the end joint flange 25 of stilling well 24 upper ends, and its measuring head stretches into stilling well well chamber, and the ultrasonic emitting face of its measuring head is perpendicular to the axis of stilling well;
Said flow sensor 22 is electromagnetic current speed sensors, is installed on the sidepiece joint flange 27, and the axis of its two potential electrode is vertical.
The use-pattern of second embodiment of the invention and first embodiment are similar.
Claims (3)
1. a river course flow velocity level measurement device comprises liquid level sensor, flow sensor, converter, and said liquid level sensor and converter are electrically connected; It is characterized in that: also comprise a stilling well;
Said stilling well is a vertical shaft, and two ends well head respectively is provided with an end joint flange about it, offers a limbers, a flow velocity measured hole on its borehole wall, and said fluid-velocity survey hole is lower than the limbers, and on the fluid-velocity survey hole, is provided with a sidepiece joint flange;
Said liquid level sensor is installed on the end joint flange of stilling well upper end, and its measuring head stretches into stilling well well chamber;
Said flow sensor is an electromagnetic current speed sensors, is installed on the sidepiece joint flange, and the axis of its two potential electrode is vertical.
2. river course according to claim 1 flow velocity level measurement device is characterized in that: said liquid level sensor is a throw-in type liquid level sensor.
3. river course according to claim 1 flow velocity level measurement device is characterized in that: said liquid level sensor is a ultrasonic liquid level sensor, and the ultrasonic emitting face of its measuring head is perpendicular to the axis of stilling well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100752470A CN102590549A (en) | 2012-03-21 | 2012-03-21 | Flow velocity and water level measurement device for river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100752470A CN102590549A (en) | 2012-03-21 | 2012-03-21 | Flow velocity and water level measurement device for river channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102590549A true CN102590549A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100752470A Pending CN102590549A (en) | 2012-03-21 | 2012-03-21 | Flow velocity and water level measurement device for river channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841751A (en) * | 2016-03-21 | 2016-08-10 | 山东大学 | Irregular section flow meter and measuring method thereof |
| CN108088527A (en) * | 2016-11-23 | 2018-05-29 | 本钢板材股份有限公司 | A kind of cold and hot well alarm system of environmental protection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852062Y (en) * | 2005-10-12 | 2006-12-27 | 西安兴仪科技股份有限公司 | Apparatus for real-time online measurement of water velocity and depth |
| JP2008128688A (en) * | 2006-11-17 | 2008-06-05 | Meidensha Corp | Breakwater pipe |
| CN201133105Y (en) * | 2007-12-03 | 2008-10-15 | 台州市椒江区水利局 | Simple remote measuring platform for water situation |
-
2012
- 2012-03-21 CN CN2012100752470A patent/CN102590549A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852062Y (en) * | 2005-10-12 | 2006-12-27 | 西安兴仪科技股份有限公司 | Apparatus for real-time online measurement of water velocity and depth |
| JP2008128688A (en) * | 2006-11-17 | 2008-06-05 | Meidensha Corp | Breakwater pipe |
| CN201133105Y (en) * | 2007-12-03 | 2008-10-15 | 台州市椒江区水利局 | Simple remote measuring platform for water situation |
Non-Patent Citations (1)
| Title |
|---|
| 刘晓凤等: "电磁流速仪在水文测验中的应用", 《气象水文海洋仪器》, no. 4, 31 December 2008 (2008-12-31), pages 47 - 49 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841751A (en) * | 2016-03-21 | 2016-08-10 | 山东大学 | Irregular section flow meter and measuring method thereof |
| CN108088527A (en) * | 2016-11-23 | 2018-05-29 | 本钢板材股份有限公司 | A kind of cold and hot well alarm system of environmental protection |
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Application publication date: 20120718 |