CN109443454A - A kind of flow monitoring device and method suitable for the confined space - Google Patents
A kind of flow monitoring device and method suitable for the confined space Download PDFInfo
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- CN109443454A CN109443454A CN201811339292.6A CN201811339292A CN109443454A CN 109443454 A CN109443454 A CN 109443454A CN 201811339292 A CN201811339292 A CN 201811339292A CN 109443454 A CN109443454 A CN 109443454A
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- water
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- flow measurement
- measurement case
- level gauge
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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
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of flow monitoring devices and method suitable for the confined space, including inflow pipe, flow measurement case, outflow tube, water pump, water-level gauge and flowmeter, inflow pipe is connected to flow measurement case, exit of pump is connected to outflow tube, pump entrance is connected to flow measurement case, it is provided with flowmeter on outflow tube, is provided with water-level gauge in flow measurement case, water pump being capable of signal enabling according to water-level gauge and stopping.Water pump, water-level gauge and flowmeter are connected with a control computer.The present invention controls the working condition of regulation water pump by water-level gauge, so that the water level in flow measurement case keeps stablizing, and then according to principle of water balance, the pressure free current for measuring inflow pipe is converted to the pressure flow of measurement outflow tube, the restriction of environment monitored is smaller, reach under limited space conditions, the purpose that flow accurately measures.
Description
Technical field
The present invention relates to the technical fields of flow monitoring device, supervise more particularly to a kind of flow suitable for the confined space
Survey device and method.
Background technique
Runoff is the key element of water cycle process in nature, and the accurate surveying to runoff process is hydrological experiment monitoring
Main contents.In general, runoff includes pressure flow and pressure free current two states.Pressure flow is present in closed conduct more,
Fluidised form is relatively stable, can obtain flow by observing flow velocity, monitoring method is more, and data are relatively accurate reliable.Work as envelope
Flow in stopped pipe road is smaller, or is in when in open environment (such as open channel), and diameter stream, which carries out directly monitoring, becomes more multiple
It is miscellaneous.For the monitoring of pressure free current, mainly there are the flow measurement methods such as flowmeter method, triangular-notch weir method and volumetric method at present.Flowmeter method needs
To obtain cross-sectional flow and fracture morphology simultaneously, and require the fluidised form near monitoring point relatively stable, thus to monitoring device and
Monitoring environmental requirement is higher, and during actual monitoring, precision is often not ideal enough.Triangular-notch weir method measuring weir saliva position, and benefit
Flow is inquired into triangular-notch weir formula, also needs stable fluidised form, and is not suitable for measurement and is risen and water-break process.Volumetric method is logical
The volume change reckoning run-off for obtaining the unit time in flow measurement case is crossed, but due to the presence of flow measurement case, so that monitoring device is past
It is larger toward volume.
With the diversification of runoff observation experiment gradually refined with monitoring object, more and more there is the confined space
Earth's surface/pipeline under the conditions of monitoring requirements, such as the small interflow monitoring surveyed in hole, narrow space goes out flow path stream etc..Limited sky
Between under the conditions of, often be not present straight section of longer pipeline section/open channel/triangular-notch weir, fluidised form is unstable, is unfavorable for flowmeter or triangle
Weir method flow measurement, and large-scale volumetric method current surveying device is placed without condition.In general, existing monitoring device is to monitoring environment
It is higher with monitoring site requirements, it is not suitable for the flow monitoring of the confined space.Therefore, it is necessary to for having under limited space conditions
Runoff monitoring demand researches and develops new flow measurement method, suitable for the monitoring of pressure free current, and meets monitoring device miniaturization and high-precision
Deng requirement.
Summary of the invention
It is above-mentioned existing to solve the object of the present invention is to provide a kind of flow monitoring device and method suitable for the confined space
The problem of with the presence of technology, keeps flow measurement in the confined space more accurate.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of flow monitoring devices suitable for the confined space, including inflow pipe, flow measurement case, out stream
Pipe, water pump, water-level gauge and flowmeter, the inflow pipe are connected to the flow measurement case, and the exit of pump and the outflow tube connect
Logical, the pump entrance is connected to the flow measurement case, and the flowmeter, setting in the flow measurement case are provided on the outflow tube
There is a water-level gauge, the water pump being capable of signal enabling according to the water-level gauge and stopping.
Preferably, the water pump, the water-level gauge and the flowmeter are connected with a control computer.
Preferably, the flow is calculated as electromagnetic flowmeter.
Preferably, the water pump is variable frequency pump, and the variable frequency pump can change function according to the signal of the water-level gauge
Rate.
Preferably, fixed level line is provided on the inner wall of the flow measurement case.
Preferably, the height of the flow measurement case is 50-100cm, and the height of the fixed level line is flow measurement case height
70%-80%.
The invention further relates to a kind of streams of confined space based on the above-mentioned flow monitoring device suitable for the confined space
Weight testing method,
Runoff to be measured is introduced in flow measurement case by inflow pipe, the letter that control computer is measured according to the water-level gauge in flow measurement case
The working condition of number control water pump: when the reading of water-level gauge is lower than preset fixed level value, control computer controls water
Pump is closed, and water storage is carried out；When the reading of water-level gauge is higher than preset fixed level, control computer control water pump is opened,
Outflow tube is drained, and the water level in flow measurement case is made to be maintained at constant at fixed level line；
According to principle of water balance, the inbound traffics of flow measurement case are equal to outflow in the unit time, are measured by flow measurement
The drain discharge of flow tube, drain discharge change over time the Variations in Flow Changes as inflow pipe, and by control computer record and
Storage.
Preferably, the control computer regulates and controls the draining power of water pump according to the amplitude of variation of water level.
The present invention achieves following technical effect compared with the existing technology:
The present invention controls the working condition of regulation water pump by water-level gauge, so that the water level in flow measurement case keeps stablizing, into
And according to principle of water balance, the pressure free current for measuring inflow pipe is converted to the pressure flow of measurement outflow tube, environment monitored because
The restriction of element is smaller, has reached under limited space conditions, the purpose that flow accurately measures.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the flow monitoring device that the present invention is suitable for the confined space；
Wherein: 1- inflow pipe, 2- flow measurement case, 3- fixed level line, 4- water pump, 5- water-level gauge, 6- outflow tube, 7- flow
Meter, 8- control computer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of flow monitoring devices and method suitable for the confined space, to solve existing skill
Art there are the problem of, keep flow measurement in the confined space more accurate.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Present embodiments provide a kind of flow monitoring device suitable for the confined space as shown in Figure 1:, including inflow pipe 1,
Flow measurement case 2, outflow tube 6, water pump 4, water-level gauge 5 and flowmeter 7, inflow pipe 1 are connected to flow measurement case 2, the outlet of water pump 4 and outflow tube
6 connections, 4 entrance of water pump are connected to flow measurement case 2, and fixed level line 3, the stabilization in flow measurement case 2 are provided on the inner wall of flow measurement case 2
The water level value of water level line 3 controls the preset fixed level value of computer 8.The height of flow measurement case 2 is 50-100cm, stablizes water
The height of bit line 3 is the 70%-80% of 2 height of flow measurement case.
Flowmeter 7 is provided on outflow tube 6, flowmeter 7 is preferably electromagnetic flowmeter；Water pump 4 is preferably variable frequency pump, is become
Frequency water pump can change power according to the signal of water-level gauge 5.
It is provided with water-level gauge 5 in flow measurement case 2, water pump 4 being capable of signal enabling according to water-level gauge 5 and stopping.The present embodiment
Middle water pump 4, water-level gauge 5 and flowmeter 7 are connected with a control computer 8.According to principle of water balance, inflow pipe 1 will be measured
Pressure free current is converted to the pressure flow of measurement outflow tube 6, it is ensured that measurement accuracy.
The present embodiment further relates to a kind of confined space based on the above-mentioned flow monitoring device suitable for the confined space
Flow rate test method:
Runoff to be measured is introduced in flow measurement case 2 by inflow pipe 1, control computer 8 is surveyed according to the water-level gauge 5 in flow measurement case 2
The working condition of the signal control water pump 4 obtained: control computer 8 presets the stabilization in a fixed level value i.e. flow measurement case 2
The water level value of water level line 3；When the reading of water-level gauge 5 is lower than preset fixed level value, control computer 8 controls water pump 4
It closes, carries out water storage.When the reading of water-level gauge 5 is higher than preset fixed level, control computer 8 controls water pump 4 and opens,
Outflow tube 6 is drained, and control computer 8 regulates and controls the draining power of water pump 4 according to the amplitude of variation of water level, is made in flow measurement case 2
Water level is maintained at constant at fixed level line 3.
According to principle of water balance, the inbound traffics of flow measurement case 2 are equal to outflow in the unit time, are measured by flowmeter 7
The drain discharge of outflow tube 6, drain discharge changes over time the Variations in Flow Changes as inflow pipe 1, and is remembered by control computer 8
Record and storage.Pressure free current can be monitored and be converted to pressure flow monitoring by the method for the present embodiment, substantially increase monitoring data essence
Degree.This method is applicable not only to the monitoring of run-off, is also applied for the monitoring of other fluid floies.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
1. a kind of flow monitoring device suitable for the confined space, it is characterised in that: including inflow pipe, flow measurement case, outflow tube, water
Pump, water-level gauge and flowmeter, the inflow pipe are connected to the flow measurement case, and the exit of pump is connected to the outflow tube, institute
It states pump entrance to be connected to the flow measurement case, the flowmeter is provided on the outflow tube, is arranged in the flow measurement case
State water-level gauge, the water pump being capable of signal enabling according to the water-level gauge and stopping.
2. the flow monitoring device according to claim 1 suitable for the confined space, it is characterised in that: the water pump, institute
Water-level gauge and the flowmeter is stated to be connected with a control computer.
3. the flow monitoring device according to claim 1 suitable for the confined space, it is characterised in that: the flow is calculated as
Electromagnetic flowmeter.
4. the flow monitoring device according to claim 1 suitable for the confined space, it is characterised in that: the water pump is to become
Frequency water pump, the variable frequency pump can change power according to the signal of the water-level gauge.
5. the flow monitoring device according to claim 1 suitable for the confined space, it is characterised in that: the flow measurement case
Fixed level line is provided on inner wall.
6. the flow monitoring device according to claim 5 suitable for the confined space, it is characterised in that: the flow measurement case
Height is 50-100cm, and the height of the fixed level line is the 70%-80% of flow measurement case height.
7. a kind of confined space based on the flow monitoring device described in any one of claims 1-6 suitable for the confined space
Flow rate test method, it is characterised in that:
Runoff to be measured is introduced in flow measurement case by inflow pipe, the signal control that control computer is measured according to the water-level gauge in flow measurement case
The working condition of water pump processed: when the reading of water-level gauge is lower than preset fixed level value, control computer control water pump is closed
It closes, carries out water storage；When the reading of water-level gauge is higher than preset fixed level, control computer control water pump is opened, and is flowed out
Pipe is drained, and the water level in flow measurement case is made to be maintained at constant at fixed level line；
According to principle of water balance, the inbound traffics of flow measurement case are equal to outflow in the unit time, measure flow tube by flow measurement
Drain discharge, drain discharge changes over time the Variations in Flow Changes as inflow pipe, and by control computer record and storage.
8. the flow rate test method of the confined space according to claim 7, it is characterised in that: the control computer is according to water
The draining power of the amplitude of variation regulation water pump of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811339292.6A CN109443454B (en) | 2018-11-12 | 2018-11-12 | Flow monitoring device and method suitable for limited space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811339292.6A CN109443454B (en) | 2018-11-12 | 2018-11-12 | Flow monitoring device and method suitable for limited space |
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| CN109443454A true CN109443454A (en) | 2019-03-08 |
| CN109443454B CN109443454B (en) | 2023-10-03 |
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| CN201811339292.6A Active CN109443454B (en) | 2018-11-12 | 2018-11-12 | Flow monitoring device and method suitable for limited space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741562A (en) * | 2021-08-31 | 2021-12-03 | 广州多钛克机械科技有限公司 | Waterlogging drainage robot monitoring method and waterlogging drainage robot |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174593A (en) * | 1993-12-20 | 1995-07-14 | Miura Co Ltd | Measuring method of water supply amount by means of water level in tank |
| JP2003177041A (en) * | 2001-12-12 | 2003-06-27 | Toshiba Corp | Electromagnetic flowmeter for open channel |
| CN1605838A (en) * | 2003-10-09 | 2005-04-13 | 俞文迪 | Fluid intelligent management method |
| US20140200836A1 (en) * | 2011-06-30 | 2014-07-17 | Pedro Jose Lee | Flow rate determination method and apparatus |
| CN104501893A (en) * | 2014-12-17 | 2015-04-08 | 清华大学 | Wide-range high-precision automatic runoff yield measurement system |
| CN204286746U (en) * | 2014-12-17 | 2015-04-22 | 安徽理工大学 | A kind of polymorphic type hydraulic parameters determinator |
| CN104748801A (en) * | 2015-03-31 | 2015-07-01 | 浙江大学 | Water tank outflow volume measurement device |
| CN105403260A (en) * | 2015-12-28 | 2016-03-16 | 中国科学院地理科学与资源研究所 | Flow measuring device and method |
| CN106404091A (en) * | 2016-04-28 | 2017-02-15 | 河海大学 | Pump station flow rate measurement method based on volumetric method |
| CN107702933A (en) * | 2017-09-27 | 2018-02-16 | 南通大学 | Determine the device and method of plain river network irrigation pumping station water-electricity conversion coefficient |
| CN209148049U (en) * | 2018-11-12 | 2019-07-23 | 北京市水科学技术研究院 | A kind of flow monitoring device suitable for the confined space |
-
2018
- 2018-11-12 CN CN201811339292.6A patent/CN109443454B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174593A (en) * | 1993-12-20 | 1995-07-14 | Miura Co Ltd | Measuring method of water supply amount by means of water level in tank |
| JP2003177041A (en) * | 2001-12-12 | 2003-06-27 | Toshiba Corp | Electromagnetic flowmeter for open channel |
| CN1605838A (en) * | 2003-10-09 | 2005-04-13 | 俞文迪 | Fluid intelligent management method |
| US20140200836A1 (en) * | 2011-06-30 | 2014-07-17 | Pedro Jose Lee | Flow rate determination method and apparatus |
| CN104501893A (en) * | 2014-12-17 | 2015-04-08 | 清华大学 | Wide-range high-precision automatic runoff yield measurement system |
| CN204286746U (en) * | 2014-12-17 | 2015-04-22 | 安徽理工大学 | A kind of polymorphic type hydraulic parameters determinator |
| CN104748801A (en) * | 2015-03-31 | 2015-07-01 | 浙江大学 | Water tank outflow volume measurement device |
| CN105403260A (en) * | 2015-12-28 | 2016-03-16 | 中国科学院地理科学与资源研究所 | Flow measuring device and method |
| CN106404091A (en) * | 2016-04-28 | 2017-02-15 | 河海大学 | Pump station flow rate measurement method based on volumetric method |
| CN107702933A (en) * | 2017-09-27 | 2018-02-16 | 南通大学 | Determine the device and method of plain river network irrigation pumping station water-electricity conversion coefficient |
| CN209148049U (en) * | 2018-11-12 | 2019-07-23 | 北京市水科学技术研究院 | A kind of flow monitoring device suitable for the confined space |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741562A (en) * | 2021-08-31 | 2021-12-03 | 广州多钛克机械科技有限公司 | Waterlogging drainage robot monitoring method and waterlogging drainage robot |
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| CN109443454B (en) | 2023-10-03 |
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