CN208269985U - Low power consumption electromagnetic water meter - Google Patents
Low power consumption electromagnetic water meter Download PDFInfo
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- CN208269985U CN208269985U CN201820946680.XU CN201820946680U CN208269985U CN 208269985 U CN208269985 U CN 208269985U CN 201820946680 U CN201820946680 U CN 201820946680U CN 208269985 U CN208269985 U CN 208269985U
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- diversion pipe
- flow signal
- magnet exciting
- power consumption
- water meter
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Abstract
A kind of low power consumption electromagnetic water meter, is related to measuring instrument technical field, and the solution is to reduce excitation power consumption.The water meter includes diversion pipe, flow signal converter, each measuring electrode in left and right is symmetrically equipped on the diversion pipe, the outer wall of diversion pipe is symmetrically pasted with each pole shoe up and down, is respectively fixed with an iron core on two pole shoes, is all arranged with magnet exciting coil on two iron cores；The periphery of diversion pipe is equipped with an annular magnetic yoke, and iron core, magnet exciting coil are laid in the annular space between magnetic yoke and diversion pipe, and magnetic yoke is respectively and fixedly connected with two iron cores；The excitation signal output port of the flow signal converter is connected to two magnet exciting coils, and two measuring electrodes are coupled with the flow signal input port of flow signal converter.Water meter provided by the utility model, operating power consumption are low.
Description
Technical field
The utility model relates to measuring instrument technologies, more particularly to a kind of technology of low power consumption electromagnetic water meter.
Background technique
In recent years, the development of domestic electromagnetism water meter was rapider, but existing electromagnetism water meter need it is lasting to encouraging
Magnetic coil power supply, can just make water meter maintain work, and operating power consumption is very high.
Utility model content
For above-mentioned defect existing in the prior art, the technical problem to be solved by the utility model is to provide a kind of works
Make the low power consumption electromagnetic water meter that low energy consumption.
In order to solve the above-mentioned technical problem, a kind of low power consumption electromagnetic water meter provided by the utility model, including diversion pipe,
Flow signal converter is symmetrically equipped with each one of left and right on the diversion pipe for measuring the measurement of its intraluminal fluid flow
Electrode, it is characterised in that:
The outer wall of the diversion pipe is symmetrically pasted with each pole shoe up and down, is respectively fixed with an iron on two pole shoes
Core is all arranged with magnet exciting coil on two iron cores, and two magnet exciting coils are serially connected；
The periphery of the diversion pipe is equipped with an annular magnetic yoke, and one is formed between the magnetic yoke and water conservancy diversion pipe outer wall
Annular space, the iron core, magnet exciting coil are laid in the annular space, and magnetic yoke is respectively and fixedly connected with two iron cores；
The flow signal converter is equipped with excitation signal output port and flow signal input port, and flow signal turns
The excitation signal output port of parallel operation is connected to two magnet exciting coils, and two measuring electrodes are coupled with the stream of flow signal converter
Measure signal input port.
Low power consumption electromagnetic water meter provided by the utility model forms a closed loop using the magnetic yoke of pole shoe, iron core and annular
Magnetic circuit enables the iron core inside magnet exciting coil to reach specified magnetic field strength in a short time, so as to use alternately just
Reversed exciting current magnetizes to iron core, and the magnetic field strength of iron core is enable to reach flow detection standard, thus only need interval to
Magnet exciting coil power supply, can be realized flow detection, excitation power consumption can be greatly reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the low power consumption electromagnetic water meter of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with Detailed description of the invention, but the present embodiment and are not had to
In limitation the utility model, all similar structures and its similar variation using the utility model should all be included in the utility model
Protection scope, the pause mark in the utility model indicates the relationship of sum.
As shown in Figure 1, a kind of low power consumption electromagnetic water meter provided by the utility model embodiment, including diversion pipe 1, flow
Signal adapter 7 is symmetrically equipped with measurement electricity of each one of the left and right for measuring its intraluminal fluid flow on the diversion pipe 1
Pole 6, it is characterised in that:
The outer wall of the diversion pipe 1 is symmetrically pasted with each pole shoe 2 up and down, is respectively fixed with one on two pole shoes 2
Iron core 3 is all arranged with magnet exciting coil 5 on two iron cores 3, and two magnet exciting coils 5 are serially connected；
The periphery of the diversion pipe 1 is equipped with an annular magnetic yoke 4, is formed between 1 outer wall of the magnetic yoke 4 and diversion pipe
One annular space, the iron core 3, magnet exciting coil 5 are laid in the annular space, and magnetic yoke 4 and two iron cores 3 are distinguished
It is affixed；
The flow signal converter 7 is the prior art, and flow signal converter 7 is equipped with excitation signal output port, and
Flow signal input port, the excitation signal output port of flow signal converter are connected to two magnet exciting coils 5, two measurement electricity
Pole 6 is coupled with the flow signal input port of flow signal converter.
In the utility model embodiment, the flow signal converter 7 includes shift control module U1, analog-to-digital conversion module
U4, and the excitation drive module U2 for exporting excitation driving signal, the signal amplification module U3 for amplifying analog signal；
The excitation control signal output port of the shift control module U1 is connected to the excitation control signal input of excitation drive module U2
Port, the excitation signal output port of excitation drive module U2 are connected to two magnet exciting coils 5, and two measuring electrodes 6 are coupled with
The amplified signal output port of the flow signal input port of signal amplification module U3, signal amplification module U3 is connected to analog-to-digital conversion
The digital signal input end mouth of the input end of analog signal mouth of module U4, analog-to-digital conversion module U4 is connected to shift control module U1's
Data collection terminal mouth, the shift control module U1, excitation drive module U2, signal amplification module U3 are the prior art, are turned
Changing control module U1 is single-chip microcontroller.
The working principle of the utility model embodiment is as follows:
Magnetic yoke 4, pole shoe 2, iron core 3 form a magnetic loop, when flow signal converter 7 works, shift control module
U1 controls excitation drive module U2 and provides positive 25mA exciting current to two concatenated magnet exciting coils, after magnet exciting coil is powered
It generates magnetomotive force, so that the iron core 3 inside magnet exciting coil magnetizes, within a certain period of time (1.5ms), is led in magnetic yoke 4, pole shoe 2
Under cause effect, make to reach specified magnetic field strength in the iron core short time, then remove exciting current, is protected due to having by iron core
Magnetic function still has higher remanence strength after removing exciting current, can generate constant magnetic field, and conducting liquid flows through
Diversion pipe, cutting magnetic line generate electromotive force signal between two measuring electrodes, and the electromotive force between two measuring electrodes is first through believing
Number amplification module U3 amplification, then enter shift control module U1 after analog-to-digital conversion, then stream is scaled by shift control module U1
Measure data；After half period (40mS), shift control module U1 controls excitation drive module U2 to two concatenated magnet exciting coils
Reversed 25mA exciting current is provided, keeps operating fields reversed, preceding half of cycling is repeated, completes a complete job week
Phase.
Claims (1)
1. a kind of low power consumption electromagnetic water meter, including diversion pipe, flow signal converter, left and right is symmetrically equipped on the diversion pipe
Each one for measuring the measuring electrode of its intraluminal fluid flow, it is characterised in that:
The outer wall of the diversion pipe is symmetrically pasted with each pole shoe up and down, is respectively fixed with an iron core on two pole shoes, and two
Magnet exciting coil is all arranged on a iron core, and two magnet exciting coils are serially connected；
The periphery of the diversion pipe is equipped with an annular magnetic yoke, and an annular is formed between the magnetic yoke and water conservancy diversion pipe outer wall
Space, the iron core, magnet exciting coil are laid in the annular space, and magnetic yoke is respectively and fixedly connected with two iron cores；
The flow signal converter is equipped with excitation signal output port and flow signal input port, flow signal converter
Excitation signal output port be connected to two magnet exciting coils, two measuring electrodes are coupled with the flow letter of flow signal converter
Number input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946680.XU CN208269985U (en) | 2018-06-20 | 2018-06-20 | Low power consumption electromagnetic water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946680.XU CN208269985U (en) | 2018-06-20 | 2018-06-20 | Low power consumption electromagnetic water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208269985U true CN208269985U (en) | 2018-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820946680.XU Active CN208269985U (en) | 2018-06-20 | 2018-06-20 | Low power consumption electromagnetic water meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN208269985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871473A (en) * | 2018-06-20 | 2018-11-23 | 上海肯特仪表股份有限公司 | Low power consumption electromagnetic water meter |
| CN110442176A (en) * | 2019-09-12 | 2019-11-12 | 水利部牧区水利科学研究所 | A kind of Groundwater of Well Irrigated Areas and Optimal yield and level of ground water Combined Control Unit |
-
2018
- 2018-06-20 CN CN201820946680.XU patent/CN208269985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871473A (en) * | 2018-06-20 | 2018-11-23 | 上海肯特仪表股份有限公司 | Low power consumption electromagnetic water meter |
| CN110442176A (en) * | 2019-09-12 | 2019-11-12 | 水利部牧区水利科学研究所 | A kind of Groundwater of Well Irrigated Areas and Optimal yield and level of ground water Combined Control Unit |
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