CN113155213B - Method for installing, measuring and maintaining ultrasonic flow meter of open channel - Google Patents
Method for installing, measuring and maintaining ultrasonic flow meter of open channel Download PDFInfo
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- CN113155213B CN113155213B CN202110434708.8A CN202110434708A CN113155213B CN 113155213 B CN113155213 B CN 113155213B CN 202110434708 A CN202110434708 A CN 202110434708A CN 113155213 B CN113155213 B CN 113155213B
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- culvert
- box
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- sealing plate
- channel
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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
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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
- G01F1/002—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to an installation flow measurement and maintenance method of an open channel ultrasonic flowmeter, which is suitable for a hopper channel and an agricultural channel water meter at the tail section of an irrigation area and belongs to the technical field of application of ultrasonic flowmeters. The technical scheme is as follows: the wall of the culvert box (5) is provided with an energy converter (6), a liquid level meter (7), an integrating module, a battery pack and a remote transmission module, the culvert box (5) is arranged in a culvert or a culvert and is positioned, and upstream canal water flows to downstream after passing through the culvert box (5) in the culvert or the culvert; the transducer (6) and the liquid level meter (7) on the culvert box (5) detect the flow speed and water level signals flowing through the culvert box (5), and the flow information is uploaded through the remote transmission module after the conversion of the integration module. The invention has the beneficial effects that: the energy converter can be conveniently taken out without detaching the channel wall, the land of the channel bank is not occupied, the power supply system is simplified, and the maintenance construction amount is reduced.
Description
Technical Field
The invention relates to an installation flow measurement and maintenance method of an open channel ultrasonic flowmeter, which is suitable for a hopper channel and an agricultural channel water meter at the tail section of an irrigation area and belongs to the technical field of application of ultrasonic flowmeters.
Background
At present, the known open channel ultrasonic flowmeter is composed of a converter, a transducer (probe), a liquid level meter, a power supply system and a remote transmission collector. During installation, the energy converter is poured into a channel, and a power supply system, a remote transmission collector, a liquid level meter and a converter are hung on the bank of the channel through a solar pole. However, the power supply system needs to build a base on the channel bank and occupies the channel bank land; the maintenance and repair of the transducer after the transducer is poured needs to break the canal wall, manpower and material resources are wasted, the replacement and maintenance difficulty is large, and the problems of complexity of a power supply system and large maintenance and repair construction quantity exist in the prior art.
Disclosure of Invention
The invention aims to provide an installation flow measurement and maintenance method of an open channel ultrasonic flowmeter, which is used for conveniently taking out a transducer without detaching a channel wall, does not occupy channel bank land, simplifies a power supply system, reduces maintenance construction amount and solves the technical problems in the prior art.
The purpose of the invention is realized by adopting the following technical scheme:
an installation flow measurement and maintenance method of an open channel ultrasonic flowmeter comprises the following steps:
firstly, constructing a culvert or culvert for installing an open channel ultrasonic flowmeter on an open channel of an irrigation area, wherein the front of the culvert or culvert is an inlet, the rear of the culvert is an outlet, and an upstream channel is communicated with a downstream channel through the culvert or culvert;
manufacturing an open channel ultrasonic flowmeter, integrating a transducer, a liquid level meter, an integrating module, a battery pack and a remote transmission module on a culvert, wherein the cross section size of the culvert is matched with that of a culvert or a culvert, the culvert is of a cylindrical structure with front and rear openings, the culvert is installed and positioned in the culvert or the culvert, and upstream canal water flows to the downstream after passing through the culvert in the culvert or the culvert; the transducer and the liquid level meter on the culvert box detect the flow speed and the water level signal flowing through the culvert box, and the flow information is uploaded through the remote transmission module after the conversion of the integrating module;
the battery pack provides power for the open channel ultrasonic flowmeter;
and fourthly, when the battery pack needs to be maintained or replaced, the culvert box is taken out from the culvert or the culvert for maintenance or replacement of the battery pack without breaking the channel wall.
The cross-section of culvert groove or culvert is the rectangle, the cross-section of culvert case also is the rectangle, and height and width in culvert groove or culvert match respectively with the height and the width of culvert case outer wall, and the culvert case pushes into culvert groove or culvert just.
The culvert is of a cylindrical structure with front and rear openings, and the surface of the inner wall of the culvert is a plane; the wall of the culvert box is provided with an energy transducer, a liquid level meter, an integrating module, a battery pack and a remote transmission module, the energy transducer, the liquid level meter, the integrating module, the battery pack and the remote transmission module are all integrated on the culvert box, and the culvert box is arranged on an open channel of an irrigation area for flow measurement.
The culvert is of a cylindrical structure with a rectangular cross section, the transducer and the liquid level meter are arranged on the side wall of the culvert, and a probe of the transducer is a plane with the surface of the inner wall of the culvert after the transducer is installed; the integrating module, the battery pack and the remote transmission module are integrated together to form an instrument box with waterproof performance, and the instrument box is arranged on the top wall of the culvert box.
The pair of transducers is a group, the number of the transducers is more than one group (including), and the pair of transducers are correspondingly arranged on two side walls of the culvert.
The battery pack is a high-capacity battery and supplies power to the open channel ultrasonic flowmeter; the remote transmission module has a wireless communication function.
And a water through hole is formed in the wall of the culvert box, close to the liquid level meter, and the liquid level is fed back to the liquid level meter.
A front sealing plate is arranged at the opening at the front end of the culvert, a water inlet matched with the opening at the front end of the culvert is formed in the front sealing plate, and the height and the width of the front sealing plate are respectively greater than those of the opening at the front end of the culvert; the rear end opening part of culvert case is equipped with flange and back shrouding, and it has the delivery port that matches with culvert case rear end opening to open on the back shrouding, and the flange welding is at the rear end opening part of culvert case, and the back shrouding passes through the bolt and installs on flange, and the height and the width of back shrouding are greater than culvert case rear end open-ended height and width respectively.
The culvert is characterized in that the culvert or the culvert comprises two structures of a culvert and a culvert:
the top of the culvert groove is open, the front and the back of the culvert groove are opened, the culvert groove is provided with a groove bottom and a left groove wall and a right groove wall, and side wall steps are respectively arranged between the left groove wall and the right groove wall and the channel wall; in the culvert case pushed into the culvert groove, the two sides of the front sealing plate are clamped on the two side wall steps at the inlet of the culvert groove to be positioned.
The top of the culvert is closed, the front and the back of the culvert are opened, the culvert is provided with a tank bottom, a left tank wall, a right tank wall and an upper cover, and side wall steps are respectively arranged between the left tank wall and the right tank wall and between the channel walls; in the culvert was pushed to the culvert case, the both sides card of preceding shrouding was on two lateral wall steps of culvert entrance, and the upper cover of culvert is blocked at the top of preceding shrouding, fixes a position.
The invention has the beneficial effects that: the energy converter can be conveniently taken out under the condition of not dismantling the channel wall, the land of the channel bank is not occupied, the power supply system is simplified, and the maintenance construction amount is reduced.
Drawings
FIG. 1 is a schematic perspective view of an open channel ultrasonic flow meter according to an embodiment of the invention;
FIG. 2 is a schematic diagram of field installation of the first embodiment of the present invention;
FIG. 3 is a schematic view of a transducer measurement of the present invention;
FIG. 4 is a schematic cross-sectional view of a field installation according to a first embodiment of the present invention;
FIG. 5 is a schematic top view of a field installation of a first embodiment of the present invention;
FIG. 6 is a schematic view of a culvert according to a first embodiment of the present invention;
FIG. 7 is a schematic top view of a second embodiment of the invention for field installation;
FIG. 8 is a schematic view of culvert of the second embodiment of the present invention;
in the figure: the ultrasonic flow meter comprises an open channel ultrasonic flow meter 1, a culvert 2, a rear sealing plate 3, bolts 4, a culvert box 5, a transducer 6, a liquid level meter 7, a connecting flange 8, an instrument box 9, a front sealing plate 10, a water through hole 11, a downstream channel 12, an upstream channel 13, a culvert groove 14, a side wall step 15, an upper cover 16 and a channel wall 17.
Detailed Description
The invention will be further illustrated by way of example with reference to the accompanying drawings in which:
an installation flow measurement and maintenance method of an open channel ultrasonic flowmeter comprises the following steps:
firstly, constructing culvert channels or culverts for installing the open channel ultrasonic flow meters on the open channels of the irrigation area, wherein the front parts of the culvert channels or culverts are inlets, the rear parts of the culvert channels or culverts are outlets, and the upstream channels 13 are communicated with the downstream channels 12 through the culvert channels or culverts;
manufacturing an open channel ultrasonic flowmeter, integrating a transducer 6, a liquid level meter 7, an integrating module, a battery pack and a remote transmission module on a culvert 5, wherein the sectional dimension of the culvert 5 is matched with that of a culvert or a culvert, the culvert 5 is of a cylindrical structure with a front opening and a rear opening, the culvert 5 is installed in the culvert or the culvert and positioned, and upstream channel water flows to the downstream after passing through the culvert 5 in the culvert or the culvert; the transducer 6 and the liquid level meter 7 on the culvert box 5 detect the flow speed and the water level signal flowing through the culvert box 5, and the flow information is uploaded through the remote transmission module after the conversion of the integrating module;
the battery pack provides power for the open channel ultrasonic flowmeter;
and fourthly, when the battery pack needs to be maintained or replaced, taking the culvert box 5 out of the culvert or the culvert for maintenance or replacement of the battery pack without breaking the channel wall.
The cross-section of culvert groove or culvert is the rectangle, the cross-section of culvert case 5 also is the rectangle, and the height and the width in culvert groove or culvert match respectively with the height and the width of culvert case 5 outer wall, and culvert case 5 pushes into culvert groove or culvert just.
The culvert 5 is of a cylindrical structure with front and rear openings, and the surface of the inner wall of the culvert 5 is a plane; the energy converter 6, the liquid level meter 7, the integrating module, the battery pack and the remote transmission module are arranged on the wall of the culvert box 5, the energy converter 6, the liquid level meter 7, the integrating module, the battery pack and the remote transmission module are all integrated on the culvert box 5, and the culvert box 5 is installed on an open channel of an irrigation area for flow measurement.
The culvert 5 is of a cylindrical structure with a rectangular cross section, the transducer 6 and the liquid level meter 7 are arranged on the side wall of the culvert 5, and a probe of the transducer 6 and the surface of the inner wall of the culvert 5 are planes after the transducer 6 is installed; the integrating module, the battery pack and the remote transmission module are integrated together to form an instrument box 9 with waterproof performance, and the instrument box 9 is arranged on the top wall of the culvert box 5.
The transducers 6 are in a group, the number of the transducers is more than one group (including), and the pair of transducers 6 are correspondingly arranged on two side walls of the culvert box 5.
The battery pack is a high-capacity battery and supplies power to the open channel ultrasonic flowmeter 1; the remote transmission module has a wireless communication function.
And a water through hole 11 is formed in the wall of the culvert 5, close to the liquid level meter 7, and the liquid level is fed back to the liquid level meter 7.
A front sealing plate 10 is arranged at the front end opening of the culvert 5, a water inlet matched with the front end opening of the culvert 5 is formed in the front sealing plate 10, and the height and the width of the front sealing plate 10 are respectively greater than those of the front end opening of the culvert 5; the rear end opening part of culvert case 5 is equipped with flange 8 and back shrouding 3, and it has the delivery port that matches with 5 rear end openings of culvert case to open on the back shrouding 8, and flange 8 welds the rear end opening part at culvert case 5, and back shrouding 3 passes through bolt 4 to be installed on flange 8, and the height and the width of back shrouding 3 are greater than 5 rear end open-ended height and width of culvert case respectively.
The culvert groove or culvert comprises a culvert groove 14 and a culvert 2.
In the first embodiment, the culvert 2 is closed at the top, opened at the front and the rear, and provided with a tank bottom, a left tank wall, a right tank wall and an upper cover, wherein side wall steps 15 are respectively arranged between the left tank wall and the right tank wall and a channel wall 17; the culvert 5 is pushed into the culvert 2, the two sides of the front sealing plate 10 are clamped on the two side wall steps 15 at the inlet of the culvert, and the top of the front sealing plate 10 is clamped on the upper cover 16 of the culvert for positioning.
In the second embodiment, the culvert 14 is open at the top, open at the front and back, and has a tank bottom and left and right tank walls, and side wall steps 15 are respectively arranged between the left and right tank walls and the channel wall 17; the culvert box 5 is pushed into the culvert groove, and the two sides of the front sealing plate 10 are clamped on the two side wall steps 15 at the inlet of the culvert groove to be positioned.
Embodiment one more specific installation method: pushing the open channel ultrasonic flowmeter 1 into a culvert 2 prefabricated in advance from an upstream channel 13, installing a rear sealing plate 3 on a connecting flange 8 by using bolts 4, clamping the open channel ultrasonic flowmeter 1 on the culvert 2 through a front sealing plate 10 and the rear sealing plate 3, and positioning the open channel ultrasonic flowmeter 1; after the transducer 6 is installed, a probe of the transducer 6 and the surface of the inner wall of the culvert 5 are planes; the rear closing plate 3 is connected with the culvert 5 through a connecting flange 8, and the liquid level meter 7 is installed on the culvert 5.
Claims (2)
1. An installation flow measurement and maintenance method of an open channel ultrasonic flowmeter is characterized in that:
firstly, constructing a culvert for installing an open channel ultrasonic flowmeter on an open channel of an irrigation area, wherein the front of the culvert is an inlet, the rear of the culvert is an outlet, and an upstream channel (13) is communicated with a downstream channel (12) through the culvert;
manufacturing an open channel ultrasonic flowmeter, integrating an energy converter (6), a liquid level meter (7), an integrating module, a battery pack and a remote transmission module on a culvert (5), wherein the cross section size of the culvert (5) is matched with that of a culvert, the culvert (5) is of a cylindrical structure with a front opening and a rear opening, the culvert (5) is installed in the culvert and positioned, and upstream canal water flows to a downstream after passing through the culvert (5) in the culvert; the transducer (6) and the liquid level meter (7) on the culvert box (5) detect the flow speed and water level signals flowing through the culvert box (5), and the flow information is uploaded through the remote transmission module after the conversion of the integrating module; the integrating module, the battery pack and the remote transmission module are integrated together to form an instrument box (9) with waterproof performance, and the instrument box (9) is arranged on the top wall of the culvert box (5);
the battery pack provides power for the open channel ultrasonic flowmeter;
when the battery pack needs to be maintained or replaced, the culvert box (5) is taken out of the culvert for maintenance or replacement of the battery pack without breaking the channel wall;
a front sealing plate (10) is arranged at the front end opening of the culvert (5), a water inlet matched with the front end opening of the culvert (5) is formed in the front sealing plate (10), and the height and the width of the front sealing plate (10) are respectively greater than those of the front end opening of the culvert (5); a connecting flange (8) and a rear sealing plate (3) are arranged at the opening at the rear end of the culvert box (5), a water outlet matched with the opening at the rear end of the culvert box (5) is formed in the rear sealing plate (8), the connecting flange (8) is connected to the opening at the rear end of the culvert box (5), the rear sealing plate (3) is installed on the connecting flange (8) through bolts (4), and the height and the width of the rear sealing plate (3) are respectively greater than those of the opening at the rear end of the culvert box (5);
the culvert (2) is closed at the top and opened front and back, and is provided with a tank bottom, a left tank wall, a right tank wall and an upper cover, wherein side wall steps (15) are respectively arranged between the left tank wall and the right tank wall and a channel wall (17); the culvert box (5) is pushed into the culvert (2), the two sides of the front sealing plate (10) are clamped on the two side wall steps (15) at the inlet of the culvert, and the top of the front sealing plate (10) is clamped on the upper cover (16) of the culvert for positioning.
2. The method for installing, measuring and maintaining the open channel ultrasonic flowmeter according to claim 1, characterized in that: the section of the culvert is rectangular, the section of the culvert box (5) is also rectangular, the height and the width in the culvert are respectively matched with the height and the width of the outer wall of the culvert box (5), and the culvert box (5) is just pushed into the culvert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434708.8A CN113155213B (en) | 2021-04-22 | 2021-04-22 | Method for installing, measuring and maintaining ultrasonic flow meter of open channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434708.8A CN113155213B (en) | 2021-04-22 | 2021-04-22 | Method for installing, measuring and maintaining ultrasonic flow meter of open channel |
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| Publication Number | Publication Date |
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| CN113155213A CN113155213A (en) | 2021-07-23 |
| CN113155213B true CN113155213B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110434708.8A Active CN113155213B (en) | 2021-04-22 | 2021-04-22 | Method for installing, measuring and maintaining ultrasonic flow meter of open channel |
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| US9541432B2 (en) * | 2013-05-17 | 2017-01-10 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Flow imaging and monitoring for synchronized management of wide area drainage |
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| CN201639253U (en) * | 2009-12-10 | 2010-11-17 | 余宾来 | Primary cable cavern plugging device for transformer substation |
| CN204424846U (en) * | 2015-02-26 | 2015-06-24 | 武汉双强管业有限公司 | Pre-fabricated electric cables ditch |
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| CN113155213A (en) | 2021-07-23 |
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