CN209148049U - A kind of flow monitoring device suitable for the confined space - Google Patents
A kind of flow monitoring device suitable for the confined space Download PDFInfo
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- CN209148049U CN209148049U CN201821859705.9U CN201821859705U CN209148049U CN 209148049 U CN209148049 U CN 209148049U CN 201821859705 U CN201821859705 U CN 201821859705U CN 209148049 U CN209148049 U CN 209148049U
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Abstract
The utility model discloses a kind of flow monitoring devices 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 utility model 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 utility model relates to the technical fields of flow monitoring device, more particularly to a kind of stream suitable for the confined space
Measure monitoring device.
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.
Utility model content
The purpose of the utility model is to provide a kind of flow monitoring devices suitable for the confined space, above-mentioned existing to solve
Technology there are the problem of, keep flow measurement in the confined space more accurate.
To achieve the above object, the utility model provides following scheme:
The utility model provides a kind of flow monitoring device suitable for the confined space, including inflow pipe, flow measurement case, goes out
Flow tube, water pump, water-level gauge and flowmeter, the inflow pipe are connected to the flow measurement case, the exit of pump and the outflow tube
Connection, the pump entrance are connected to the flow measurement case, the flowmeter are provided on the outflow tube, is set in the flow measurement case
It is equipped with the 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 utility model achieves following technical effect compared with the existing technology:
The utility model controls the working condition of regulation water pump by water-level gauge, so that the water level in flow measurement case keeps steady
It is fixed, 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, ring monitored
The restriction of border factor is smaller, has reached under limited space conditions, the purpose that flow accurately measures.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the flow monitoring device that the utility model 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
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise not made the creative labor
Under every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of flow monitoring devices suitable for the confined space, to solve the prior art
There are the problem of, keep flow measurement in the confined space more accurate.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
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, the height of fixed level line 3 are 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.
A kind of flow of the confined space based on the above-mentioned flow monitoring device suitable for the confined space of the present embodiment
Test method is specific as follows:
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.
It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field
Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute
It states, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859705.9U CN209148049U (en) | 2018-11-12 | 2018-11-12 | A kind of flow monitoring device suitable for the confined space |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821859705.9U CN209148049U (en) | 2018-11-12 | 2018-11-12 | A kind of flow monitoring device suitable for the confined space |
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| CN209148049U true CN209148049U (en) | 2019-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443454A (en) * | 2018-11-12 | 2019-03-08 | 北京市水科学技术研究院 | A kind of flow monitoring device and method suitable for the confined space |
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2018
- 2018-11-12 CN CN201821859705.9U patent/CN209148049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443454A (en) * | 2018-11-12 | 2019-03-08 | 北京市水科学技术研究院 | A kind of flow monitoring device and method suitable for the confined space |
| CN109443454B (en) * | 2018-11-12 | 2023-10-03 | 北京市水科学技术研究院 | Flow monitoring device and method suitable for limited space |
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