CN110749356B - Electric signal flowmeter - Google Patents
Electric signal flowmeter Download PDFInfo
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- CN110749356B CN110749356B CN201910984356.6A CN201910984356A CN110749356B CN 110749356 B CN110749356 B CN 110749356B CN 201910984356 A CN201910984356 A CN 201910984356A CN 110749356 B CN110749356 B CN 110749356B
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- arc
- shaped groove
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- flange
- gland
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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
- G01F1/56—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 using electric or magnetic effects
- G01F1/58—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 using electric or magnetic effects by electromagnetic flowmeters
- G01F1/582—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 using electric or magnetic effects by electromagnetic flowmeters without electrodes
-
- 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
- G01F1/56—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 using electric or magnetic effects
- G01F1/58—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 using electric or magnetic effects by electromagnetic flowmeters
- G01F1/586—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 using electric or magnetic effects by electromagnetic flowmeters constructions of coils, magnetic circuits, accessories therefor
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an electric signal flowmeter, which comprises a shell, a permanent magnet and a Hall element, wherein a base of the shell is provided with an arc-shaped groove, and two ends of the arc-shaped groove are respectively communicated with a water inlet or an air inlet and a water outlet or an air outlet; the permanent magnet is movably embedded into the arc-shaped groove, a spring is arranged in the arc-shaped groove between the south pole end and the water outlet or the air outlet, one end of the spring is abutted against the south pole end, and the other end of the spring is fixed at the end part of the arc-shaped groove; the Hall element is fixed in the base and induces the position change of the permanent magnet. When fluid flows into the arc-shaped groove from the water inlet or the air inlet, the fluid pushes the permanent magnet to rotate for a certain angle in the arc-shaped groove, the spring is compressed, the Hall element detects the rotation angle of the permanent magnet and converts the rotation angle into an electric signal, and the real-time flow is measured through the output of the electric signal. The electric signal flowmeter disclosed by the invention has the advantages of no excitation error, more accurate measurement result, low production cost and suitability for market popularization.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to an electric signal flowmeter.
Background
The existing flowmeter with the function of outputting electric signals is mainly an electromagnetic flowmeter, and the basic principle of measurement is to calculate the flow by exciting fluid in a measuring pipeline. However, the electromagnetic flowmeter will cause the excitation error generated during the flow due to the difference of the fluid medium during the measurement, so that the measurement result is not accurate enough, and the cost of the excitation measurement is high.
Therefore, how to provide an electrical signal flow meter with more accurate flow measurement is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.
Therefore, an object of the present invention is to provide an electrical signal flow meter to solve the problem that the existing electromagnetic flow meter has excitation error during use, which results in inaccurate measurement result.
In order to achieve the purpose, the invention adopts the following technical scheme: an electrical signal flow meter comprising:
the water inlet or the water outlet is communicated with the inner cavity of the arc-shaped groove, and the water inlet or the air inlet is communicated with the inner cavity of the arc-shaped groove;
the permanent magnet is C-shaped and movably embedded into the arc-shaped groove, the permanent magnet is provided with a south pole end and a north pole end, the south pole end is close to the water outlet or the air outlet, a spring is arranged in the arc-shaped groove between the south pole end and the water outlet or the air outlet, one end of the spring is abutted against the south pole end, and the other end of the spring is fixed at the end part of the arc-shaped groove;
and the Hall element is fixed in the base and used for detecting the rotating angle of the permanent magnet and converting the rotating angle into an electric signal.
According to the technical scheme, compared with the prior art, the invention discloses the electric signal flow meter, when fluid flows into the arc-shaped groove from the water inlet or the air inlet, the fluid pushes the permanent magnet, the permanent magnet rotates for a certain angle in the arc-shaped groove, the spring is compressed, the rotating angle of the permanent magnet can be detected by the Hall element and converted into an electric signal, and the real-time flow can be accurately measured by outputting the electric signal. The electric signal flowmeter disclosed by the invention is not influenced by a flowing medium, has no excitation error, ensures that the measurement result is more accurate, has low production cost and is more suitable for market popularization.
Preferably, the gland is circular, a plurality of bolt holes are formed in the periphery of the gland, the periphery of the gland is close to the outer edge of the gland, a first circular groove is formed in the bottom of the gland, a glass sealing cover is embedded into the circular groove, and the gland is fixed with the base through bolts.
Preferably, a second circular groove is formed in the upper surface of the base, an O-shaped sealing gasket is placed in the second circular groove, and the arc-shaped groove is formed in the upper surface of the second circular groove.
More specifically, the upper portion of base has first flange face, and the bottom has the second flange face, first flange face with all be equipped with a plurality of screw holes on the second flange face, the bolt passes bolt hole on the first flange face with bolt hole on the gland will the gland with base fixed connection.
The beneficial effects of adopting above-mentioned preferred scheme are that, the bottom of gland is equipped with the glass closing cap, still is equipped with O type seal gasket between glass closing cap and base, has guaranteed the leakproofness of gland and base.
Preferably, the water inlet or air inlet flange is further included and is installed in the water inlet or air inlet, and an inflow arrow is arranged on the water inlet or air inlet flange to indicate the flow direction of the fluid.
More specifically, the water inlet or air inlet flange is sleeved with a first rubber sealing ring.
Adopt above-mentioned preferred scheme's beneficial effect to be, block up through intaking or air inlet flange in intaking or air inlet department, be equipped with the inflow arrow point on intaking or air inlet flange face, guarantee that it can not ann's anti-reverse to intake or air inlet flange because the direction dress can cause the unable flow of measurement of electric signal flow meter, establish first rubber seal at the terminal surface cover of intaking or air inlet flange, guaranteed the leakproofness of intaking or air inlet and base.
Preferably, the water outlet or air outlet flange is arranged in the water outlet or air outlet, and an outflow arrow is arranged on the water outlet or air outlet flange to indicate the flow direction of the fluid.
More specifically, the water outlet or air outlet flange is sleeved with a second rubber sealing ring.
Adopt above-mentioned preferred scheme's beneficial effect to be, block up through going out water or the flange of giving vent to anger in water or gas outlet department, be equipped with the outflow arrow point on going out water or the flange face of giving vent to anger, guarantee to go out water or the flange of giving vent to anger can not ann anti-reverse, establish second rubber seal at the terminal surface cover of going out water or the flange of giving vent to anger, guaranteed the leakproofness of going out water or gas outlet and base.
Preferably, the hall element includes a power supply terminal, a signal terminal, and a ground terminal. The power supply end of the Hall element is connected with an external direct current 5V power supply, the signal end is connected with an external data processor and used for outputting an electric signal, and the grounding end is grounded with the outside through a shell of the flowmeter and used for improving the anti-interference capacity of the signal.
Preferably, the gland and the base are made of non-magnetic materials, and the non-magnetic materials are any one of aluminum alloy, stainless steel or copper.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electrical signal flow meter according to the present invention with a flow rate of 0L/h;
FIG. 2 is a schematic structural diagram of an electrical signal flow meter according to the present invention with a flow rate of 100L/h;
FIG. 3 is a schematic diagram of the overall structure of an electrical signal flow meter according to the present invention;
in the figure, 1-shell, 11-gland, 111-first circular groove, 112-glass sealing cover, 12-base, 121-annular groove, 122-water outlet or air outlet, 123-water inlet or air inlet, 124-second circular groove, 125-O type sealing gasket, 126-first flange face, 127-second flange face, 2-permanent magnet, 3-spring, 4-Hall element, 5-water inlet or air inlet flange, and 6-water outlet or air outlet flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an electric signal flowmeter, which comprises a shell 1, a permanent magnet 2 and a Hall element 4, as shown in figures 1-3.
The shell 1 comprises a gland 11 and a base 12, the gland 11 is detachably connected with the base 12, the cross section of the base 12 is circular, an arc-shaped groove 121 is formed along the circumference of the base 12, one end of the arc-shaped groove 121 is provided with a water outlet or air outlet 122 communicated with the inner cavity of the arc-shaped groove 121, and the other end of the arc-shaped groove 121 is provided with a water inlet or air inlet 123 communicated with the inner cavity of the arc-shaped groove 121;
the permanent magnet 2 is C-shaped and is movably embedded into the arc-shaped groove 121, the permanent magnet 2 is provided with a south pole end and a north pole end, the south pole end is close to the water outlet or air outlet 122, a spring 3 is arranged in the arc-shaped groove 121 between the south pole end and the water outlet or air outlet 122, one end of the spring 3 is abutted against the south pole end, and the other end of the spring 3 is fixed at one end of the arc-shaped groove 121; the Hall element 4 is fixed in the base 12 and used for detecting the rotation angle of the permanent magnet 2 and converting the rotation angle into an electric signal, the numerical range of the output electric signal is 1-4.2V, and the real-time flow can be accurately obtained according to the magnitude of the electric signal.
The invention discloses an electric signal flow meter, when fluid flows into an arc-shaped groove 121 from a water inlet or a gas inlet 123, the fluid pushes a permanent magnet 2, the permanent magnet 2 rotates in the arc-shaped groove 121 for a certain angle, a spring 3 is compressed, a Hall element 4 detects the rotating angle of the permanent magnet 2 and converts the rotating angle into an electric signal, and the real-time flow can be accurately measured by outputting the size of the electric signal. The electric signal flowmeter disclosed by the invention is not influenced by a flowing medium, has no excitation error, ensures that the measurement result is more accurate, has low production cost and is more suitable for market popularization.
In the embodiment of the present invention, as shown in fig. 3, the pressing cover 11 is circular, a plurality of bolt holes are arranged along the circumference of the pressing cover near the outer edge of the pressing cover 11, a first circular groove 111 is formed at the bottom of the pressing cover 11, a glass sealing cover 112 is embedded in the first circular groove 111, and the pressing cover 11 is fixed with the base 12 through bolts.
Advantageously, the upper surface of the base 12 is provided with a second circular groove 124, an O-shaped sealing gasket 125 is placed in the second circular groove 124, and the circular arc-shaped groove 121 is formed on the upper surface of the second circular groove 124.
Advantageously, the upper portion of the base 12 has a first flange surface 126, the bottom portion has a second flange surface 127, a plurality of bolt holes are disposed on both the first flange surface 126 and the second flange surface 127, and bolts pass through the bolt holes on the first flange surface 126 and the bolt holes on the gland 11 to fixedly connect the gland 11 and the base 12.
In the embodiment of the present invention, the bottom of the gland 11 is provided with the glass cover 112, and an O-ring seal 125 is further provided between the glass cover 112 and the base 12, so as to ensure the sealing performance of the gland 11 and the base 12.
In order to block the water inlet or the air inlet 123, the embodiment of the invention further provides a water inlet or air inlet flange 5, the water inlet or air inlet flange 5 is installed in the water inlet or the air inlet 123, an inflow arrow is marked on the water inlet or air inlet flange 5 to indicate the flow direction of the fluid, and a first rubber sealing ring is sleeved on the water inlet or air inlet flange 5. The department blocks up through intaking or air inlet flange 5 intaking or air inlet 123, and it has the inflow arrow to mark on intaking or 5 faces of air inlet flange, guarantees that intake or air inlet flange 5 can not ann's reversal, because the direction dress can cause the unable flow measurement of electric signal flow meter, establishes first rubber seal on intaking or air inlet flange 5, has guaranteed the leakproofness of intaking or air inlet 123 and base 12.
Similarly, in order to block the water outlet or the air outlet 122, the embodiment of the present invention further provides a water outlet or air outlet flange 6, the water outlet or air outlet flange 6 is installed in the water outlet or the air outlet 122, an outflow arrow is marked on the water outlet or air outlet flange 6, and a second rubber sealing ring is sleeved on the water outlet or air outlet flange 6. The water outlet or the air outlet 122 is blocked by the water outlet or the air outlet flange 6, an outflow arrow is arranged on the surface of the water outlet or the air outlet flange 6 to ensure that the water outlet or the air outlet flange 6 cannot be reversed, and the end surface of the water outlet or the air outlet flange 6 is sleeved with the second rubber sealing ring to ensure the sealing property of the water outlet or the air outlet and the base.
In addition, the hall element 4 includes a power supply terminal, a signal terminal and a ground terminal, the power supply terminal is connected with an external direct current 5V power supply, the signal terminal is connected with an external data processor for outputting signals, and the ground terminal is grounded with the outside through a casing of the flowmeter for improving the anti-interference capability of the signals.
Further, the embodiment of the present invention further provides that the material of the gland 11 and the base 12 is non-magnetic material, and the non-magnetic material is any one of aluminum alloy, stainless steel or copper.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. An electrical signal flow meter, comprising:
the water-saving device comprises a shell (1), wherein the shell (1) comprises a gland (11) and a base (12), the gland (11) is detachably connected with the base (12), the cross section of the base (12) is circular, an arc-shaped groove (121) is formed in the circumference of the base (12), one end of the arc-shaped groove (121) is provided with an inner cavity, a water outlet or air outlet (122) of the inner cavity is communicated with the arc-shaped groove (121), and the other end of the arc-shaped groove is provided with an inner cavity, a water inlet or air inlet (123) of the inner cavity is communicated with the;
the permanent magnet (2) is C-shaped and is movably embedded into the arc-shaped groove (121), the permanent magnet (2) is provided with a south pole end and a north pole end, the south pole end is close to the water outlet or air outlet (122), a spring (3) is arranged in the arc-shaped groove (121) between the south pole end and the water outlet or air outlet (122), one end of the spring (3) is abutted against the south pole end, and the other end of the spring is fixed at the end part of the arc-shaped groove (121);
the Hall element (4) is fixed in the base (12) and used for detecting the rotation angle of the permanent magnet (2) and converting the rotation angle into an electric signal;
the gland (11) is circular, a plurality of bolt holes are formed in the periphery of the gland (11) close to the outer edge of the gland (11), a first circular groove (111) is formed in the bottom of the gland (11), and a glass seal cover (112) is embedded into the first circular groove (111); the gland (11) is fixed with the base (12) through bolts; a second circular groove (124) is formed in the upper surface of the base (12), an O-shaped sealing gasket (125) is placed in the second circular groove (124), and the arc-shaped groove (121) is formed in the upper surface of the second circular groove (124);
the water inlet or air inlet flange (5) is arranged in the water inlet or air inlet (123), an inflow arrow is marked on the water inlet or air inlet flange (5) to indicate the flow direction, and a first rubber sealing ring is sleeved on the water inlet or air inlet flange (5); still include out water or air outlet flange (6), it installs to go out water or air outlet flange (6) go out in water or gas outlet (122), go out water or air outlet flange (6) and mark the outflow arrow on with the signal flow direction, go out water or air outlet flange (6) and go up the cover and establish second rubber seal.
2. The electrical signal flow meter of claim 1, wherein the base (12) has a first flange surface (126) at an upper portion thereof and a second flange surface (127) at a lower portion thereof, and a plurality of bolt holes are formed in each of the first flange surface (126) and the second flange surface (127), and the bolts pass through the bolt holes in the first flange surface (126) and the bolt holes in the gland (11) to fixedly connect the gland (11) and the base (12).
3. The electrical signal flowmeter of claim 1, wherein the hall element (4) has a power supply terminal, a signal terminal and a ground terminal, the power supply terminal is electrically connected to an external power supply, the signal terminal is used for outputting an electrical signal, and the ground terminal is connected to the ground through the housing (1).
4. An electrical signal flow meter according to any of claims 1-3, characterized in that the cover (11) and the base (12) are both non-magnetic material, which is any of aluminium alloy, stainless steel or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984356.6A CN110749356B (en) | 2019-10-16 | 2019-10-16 | Electric signal flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984356.6A CN110749356B (en) | 2019-10-16 | 2019-10-16 | Electric signal flowmeter |
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| Publication Number | Publication Date |
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| CN110749356A CN110749356A (en) | 2020-02-04 |
| CN110749356B true CN110749356B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910984356.6A Active CN110749356B (en) | 2019-10-16 | 2019-10-16 | Electric signal flowmeter |
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| CN (1) | CN110749356B (en) |
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| US4475407A (en) * | 1982-12-27 | 1984-10-09 | Brunswick Corporation | Temperature compensated flow sensor |
| CN101532864A (en) * | 2009-04-27 | 2009-09-16 | 北京金自天正智能控制股份有限公司 | Material touch signal generator |
| CN101769779A (en) * | 2009-12-24 | 2010-07-07 | 厉成华 | Water tank water level detector of Hall effect floating ball type solar water heater |
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| CN110749356A (en) | 2020-02-04 |
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