CN214333911U - High-precision electromagnetic flowmeter - Google Patents
High-precision electromagnetic flowmeter Download PDFInfo
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- CN214333911U CN214333911U CN202120594932.9U CN202120594932U CN214333911U CN 214333911 U CN214333911 U CN 214333911U CN 202120594932 U CN202120594932 U CN 202120594932U CN 214333911 U CN214333911 U CN 214333911U
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Abstract
High accuracy electromagnetic flowmeter, including measurement pipeline, magnetic conduction pipe, inside lining copper pipe, inside cavity and electrode subassembly, the device is by outer to interior measurement pipeline, magnetic conduction pipe, inside lining copper pipe and inside cavity in proper order, and electrode subassembly passes measurement pipeline, magnetic conduction pipe and inside lining copper pipe setting in proper order, and measurement pipeline opens the fixed pipeline that has the through-hole, just is connected with size and through-hole matching in electrode subassembly department, and electrode subassembly includes from outer protection machanism, coil mechanism and the electrode mechanism to interior. The utility model provides a flowmeter seal the magnetic circuit inside the device, in compact space, under the condition of undercurrent, realize stabilizing the excitation, guarantee the precision and the anti external disturbance ability of device to utilize seal ring to keep apart magnetic material and external environment, make the device wholly avoid the erosion of water, vapour, effective extension fixture's life.
Description
Technical Field
The utility model relates to a liquid flow statistics technical field, concretely relates to high accuracy electromagnetic flowmeter.
Background
Electromagnetic flowmeter is widely used in different fields as high-efficient measurement device, but electromagnetic flowmeter on the market at present structure is complicated, and the leakproofness often can't satisfy the demand of in-service use, in case the infiltration liquid, electromagnetic flowmeter's survey precision just can't be ensured, often need maintain or change in order to guarantee normal use. The insulating lining inside the flowmeter is expensive in manufacturing cost, and the flowmeter is frequently replaced to cause great inconvenience to users and improve the use cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide a high accuracy electromagnetic flowmeter, its simple structure. Reasonable in design adopts the magnetic circuit structure of innovation to utilize a plurality of seal ring to guarantee sealed effect, guarantee the stability of product performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
high accuracy electromagnetic flowmeter, including measurement pipeline, magnetic conductive pipe, inside lining copper pipe, inside cavity and electrode subassembly, the device is by outer to interior measurement pipeline, magnetic conductive pipe, inside lining copper pipe and inside cavity in proper order, electrode subassembly passes measurement pipeline, magnetic conductive pipe and inside lining copper pipe setting in proper order, and the measurement pipeline is opened the through-hole in electrode subassembly through the department, and is connected with the fixed pipeline that size and through-hole match, and electrode subassembly includes from outer protection mechanism, coil mechanism and the electrode mechanism to interior.
The metering pipeline, the magnetic conduction pipe, the lining copper pipe and the fixed pipeline are all cylinders with hollow interiors; the fixed pipeline is arranged perpendicular to the metering pipeline; the two ends of the metering pipeline are respectively provided with a connector, the two connectors are respectively a first connector on the left side and a second connector on the right side, the first connector is connected with a pipeline connector, and the second connector is provided with internal threads, so that the device is conveniently integrally connected into the existing pipeline for use.
The left side and the right side of the fixed pipeline are respectively fixed with a fixed support, the bottom end of each fixed support is fixed on the side surface and the top end of the metering pipeline, and cylindrical grooves are formed in the top end of each fixed support, so that the protective shell can be conveniently added to protect the device when necessary.
The left end of the magnetic conduction pipe is fixed with a lining pipe baffle, and the right end of the magnetic conduction pipe is fixed by a lining copper pipe extending outwards; the left side of the inner lining pipe baffle is tightly attached to the pipeline interface.
The protection mechanism of the electrode assembly comprises a probe pressing ring, a probe split shell and a probe plastic protective cover which are sequentially arranged from outside to inside, wherein the probe pressing ring is a cylinder with a sawtooth-shaped side surface, and a through hole for passing an electrode is formed in the center of the cylinder; the probe split shell is a cylinder with a hollow interior; the vertical cross-section of probe plastics safety cover is the rectangle that the recess was opened at the top center, and the both sides of recess are fixed with motor probe respectively, and the top of two motor probe flushes with the tank bottom of recess, and the bottom respectively is fixed with a wire jumper PCB board to converge to the electrode department through wire jumper PCB board, locate to set up the recess through probe plastics safety cover, neither influence the flow of the inside liquid of flowmeter, can guarantee the measuring effect of electrode convection cell again.
The coil mechanism of the electrode assembly comprises a coil and a probe winding baffle, the coil is fixed in a cavity inside the probe split shell, and the probe winding baffle is located on the other side, opposite to the probe compression ring, of the coil and plays a role in fixing the coil.
The electrode mechanism comprises an electrode and a probe split inner rod for fixing the electrode, the probe split inner rod is T-shaped, and a through hole for fixing the electrode probe is formed in the center of the probe split inner rod; the bottom end of the electrode is fixed at the top surface of the probe press ring, and the top end of the electrode is fixed at the probe plastic protective cover.
A plurality of sealing washers are further arranged in the high-precision electromagnetic flowmeter, and the sealing washers are a first gasket, a second gasket, a third gasket and a sixth gasket which are vertically arranged and a fourth gasket and a fifth gasket which are transversely arranged.
The first gasket is fixed at the joint of the metering pipeline and the first interface; the second gasket is fixed between the pipeline interface and the inner lining pipe baffle; the third gasket is fixed between the lining copper pipe and the pipeline interface; the fourth gasket is fixed between the probe plastic protective cover and the lining copper pipe; the fifth gasket is fixed between the electrode probe and the probe plastic protective cover; the sixth packing ring is fixed between the lining copper pipe and the metering pipeline, and the 6 packing rings realize the total isolation of magnetic circuit parts, are not corroded by water and steam, prolong the service life of the whole device and improve the measuring accuracy of the device.
The sealing washers are O-shaped rubber sealing rings, and are low in price and good in sealing effect.
The utility model provides a high accuracy electromagnetic flowmeter seals the magnetic circuit inside the device, in compact space, under the condition of undercurrent, realizes stabilizing the excitation, guarantees the precision and the anti external disturbance ability of device to utilize seal ring to keep apart magnetic conduction material and external environment, make the whole erosion of exempting from water, vapour of device, effectively prolong the life of device.
Drawings
FIG. 1 is a bottom view of the device as a whole;
FIG. 2 is a front view of the apparatus as a whole;
FIG. 3 is a left side view of the device as a whole;
FIG. 4 is a sectional view taken along line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;
wherein, 1, a metering pipeline; 2. a magnetic conduction pipe; 3. lining copper pipes; 4. a pipe interface; 5. a second interface; 6. fixing a bracket; 7. a liner tube baffle; 8. pressing a ring by using a probe; 9. a probe split shell; 10. a probe winding baffle; 11. a coil; 101. a first gasket; 102. a second gasket; 103. a third gasket; 104. a fourth gasket; 105. a fifth gasket; 106. and a sixth gasket.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed by the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1-5, the high-precision electromagnetic flowmeter comprises a metering pipeline 1, a magnetic conduction pipe 2, a lining copper pipe 3, an internal cavity and an electrode assembly, wherein the device comprises the metering pipeline 1, the magnetic conduction pipe 2, the lining copper pipe 3 and the internal cavity from outside to inside in sequence, the electrode assembly sequentially penetrates through the metering pipeline 1, the magnetic conduction pipe 2 and the lining copper pipe 3, the metering pipeline 1 is provided with a through hole at the passing part of the electrode assembly and is connected with a fixed pipeline with the size matched with the through hole, and the electrode assembly comprises a protection mechanism from outside to inside, a coil 11 mechanism and an electrode mechanism. The metering pipeline 1, the magnetic conduction pipe 2, the lining copper pipe 3 and the fixed pipeline are all cylinders with hollow interiors; the fixed pipeline is perpendicular to the metering pipeline 1, the left side and the right side of the fixed pipeline are respectively fixed with a fixed support 6, the bottom end of each fixed support 6 is fixed on the side surface of the metering pipeline 1, and the top end of each fixed support 6 is provided with a cylindrical groove, so that a protective shell can be added to protect the device when necessary; the two ends of the metering pipeline 1 are respectively provided with a connector, the two connectors are respectively a first connector on the left side and a second connector 5 on the right side, the first connector is connected with a pipeline connector 4, and the second connector 5 is provided with internal threads, so that the device is conveniently integrally connected into the existing pipeline for use.
The metering pipeline 1 and the lining copper pipe 3 are usually made of brass which has good corrosion resistance, low cost and easy processing, and can also be made of engineering plastics or stainless steel; the magnetic conduction pipe 2 is made of industrial soft iron which has good magnetic conductivity, lower cost and easy processing, and the commonly used domestic brands are as follows: DT4E, DT4C, etc. may be made of permalloy material which is expensive and has high magnetic permeability, and the effect is high, or may be made of ferrite material which is low in cost, but ferrite is brittle and easily damaged, and therefore, it is preferable to make it of industrial soft iron.
The left end of the magnetic conduction pipe 2 is fixed with a lining pipe baffle 7, and the right end is fixed by a lining copper pipe 3 extending outwards; the left side of the lining pipe baffle 7 is tightly attached to the pipeline interface 4.
The protection mechanism of the electrode assembly comprises a probe press ring 8, a probe split shell 9 and a probe plastic protective cover which are sequentially arranged from outside to inside, wherein the probe press ring 8 is a cylinder with a sawtooth-shaped side surface, and a through hole for passing an electrode is formed in the center of the circle; the probe split shell 9 is a cylinder with a hollow inner part; the vertical cross-section of probe plastics safety cover is the rectangle that the recess was opened at the top center, and the both sides of recess are fixed with measuring electrode respectively, and the top of two measuring electrode flushes with the tank bottom of recess, and the bottom respectively is fixed with a wire jumper PCB board to converge to the electrode department through the wire jumper PCB board, locate to set up the recess through probe plastics safety cover, neither influence the flow of the inside liquid of flowmeter, can guarantee the measuring effect of electrode convection current again. The coil 11 mechanism of the electrode assembly comprises a coil 11 and a probe winding baffle plate 10, wherein the coil 11 is fixed in a cavity inside the probe split shell 9, and the probe winding baffle plate 10 is positioned on the other side, opposite to the probe pressing ring 8, of the coil 11 and plays a role in fixing the coil 11. The electrode mechanism comprises an electrode and a probe split inner rod for fixing the electrode, the probe split inner rod is T-shaped, and a through hole for fixing the electrode probe is formed in the center of the probe split inner rod; the bottom end of the electrode is fixed at the top surface of the probe press ring 8, and the top end of the electrode is fixed at the probe plastic protective cover.
The outer side wall (including lining copper pipe 3, magnetic conduction pipe 2 and metering pipeline 1) of the whole electromagnetic flowmeter is conductive and is used as one pole (can be used as GND signal) of the signal output of the electromagnetic flowmeter, the electrode is used as the other pole as a leading-out signal, and the amplitude of the signal led out by the electrode is about: between 4-5uV and 400-500uV, 1000-10000 times of amplification is needed to sample by the ADC.
A plurality of sealing gaskets are further arranged in the high-precision electromagnetic flowmeter, namely a first gasket 101, a second gasket 102, a third gasket 103 and a sixth gasket 106 which are vertically arranged, and a fourth gasket 104 and a fifth gasket 105 which are transversely arranged. The sealing washers are O-shaped rubber sealing rings, and are low in price and good in sealing effect. The first gasket 101 is fixed at the joint of the metering pipeline 1 and the first interface; the second gasket 102 is fixed between the pipe joint 4 and the lining pipe baffle 7; the third gasket 103 is fixed between the lining copper pipe 3 and the pipeline interface 4; the fourth gasket 104 is fixed between the probe plastic protective cover and the lining copper pipe 3; a fifth gasket 105 is fixed between the electrode probe and the plastic probe protection cover; the sixth gasket 106 is fixed between the lining copper pipe 3 and the metering pipeline 1, and the 6 gaskets realize the total isolation of magnetic circuit parts, are not corroded by water and steam, prolong the service life of the whole device and improve the measuring accuracy of the device.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. The utility model provides a high accuracy electromagnetic flowmeter, includes measurement pipeline, magnetic conduction pipe, inside lining copper pipe, inside cavity and electrode subassembly, characterized by, the device is by outer to interior measurement pipeline, magnetic conduction pipe, inside lining copper pipe and inside cavity in proper order, electrode subassembly passes measurement pipeline, magnetic conduction pipe and inside lining copper pipe setting in proper order, and the measurement pipeline is opened the through-hole in electrode subassembly through the department, and is connected with the fixed pipeline that size and through-hole match, and electrode subassembly includes from outer protection machanism, coil mechanism and the electrode mechanism to interior.
2. The high-precision electromagnetic flowmeter as claimed in claim 1, wherein the metering tube, the magnetic conducting tube, the lining copper tube and the fixed tube are all cylinders with hollow interiors; the fixed pipeline is arranged perpendicular to the metering pipeline; the two ends of the metering pipeline are respectively provided with a connector, the two connectors are respectively a first connector on the left side and a second connector on the right side, the first connector is connected with a pipeline connector, and the second connector is provided with internal threads.
3. The high-precision electromagnetic flowmeter as claimed in claim 1, wherein a fixing bracket is fixed on each of the left and right sides of the fixing pipe, the bottom end of the fixing bracket is fixed on the side surface of the metering pipe, and the top end of the fixing bracket is provided with a cylindrical groove.
4. The high-precision electromagnetic flowmeter as claimed in claim 1, wherein the left end of said magnetic conduction pipe is fixed with a lining pipe baffle, and the right end is fixed by an outwardly extending lining copper pipe; the left side of the inner lining pipe baffle is tightly attached to the pipeline interface.
5. The high-precision electromagnetic flowmeter as claimed in claim 1, wherein the protection mechanism comprises a probe press ring, a probe split housing and a probe plastic protection cover which are sequentially arranged from outside to inside, the probe press ring is a cylinder with a sawtooth-shaped side surface, and a through hole for passing an electrode is formed in the center of the cylinder; the probe split shell is a cylinder with a hollow interior; the vertical cross section of probe plastics safety cover is the rectangle that the top center was opened the recess, and the both sides of recess are fixed with motor probe respectively, and the top of two motor probes flushes with the tank bottom of recess, the bottom respectively is fixed with a wire jumper PCB board to converge to electrode department through the wire jumper PCB board.
6. The high accuracy electromagnetic flowmeter of claim 1 wherein said coil means comprises a coil secured in a cavity within the split probe housing and a probe coil retainer on the opposite side of the coil from the probe collar.
7. The high-precision electromagnetic flowmeter as claimed in claim 1, wherein said electrode mechanism comprises an electrode and a probe split inner bar for fixing the electrode, the probe split inner bar is T-shaped, and a through hole for fixing the electrode probe is provided at the center position; the bottom end of the electrode is fixed at the top surface of the probe press ring, and the top end of the electrode is fixed at the probe plastic protective cover.
8. The high-accuracy electromagnetic flowmeter of claim 1, wherein a plurality of sealing washers are further provided in the high-accuracy electromagnetic flowmeter, respectively, a first washer, a second washer, a third washer, and a sixth washer that are vertically arranged, and a fourth washer and a fifth washer that are horizontally arranged.
9. The high accuracy electromagnetic flowmeter of claim 8 wherein the first gasket is secured to the junction of the metering conduit and the first port; the second gasket is fixed between the pipeline interface and the inner lining pipe baffle; the third gasket is fixed between the lining copper pipe and the pipeline interface; the fourth gasket is fixed between the probe plastic protective cover and the lining copper pipe; the fifth gasket is fixed between the electrode probe and the probe plastic protective cover; and the sixth gasket is fixed between the lining copper pipe and the metering pipe.
10. The high accuracy electromagnetic flowmeter of claim 8, wherein the sealing gaskets are all "O" shaped rubber seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120594932.9U CN214333911U (en) | 2021-03-24 | 2021-03-24 | High-precision electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120594932.9U CN214333911U (en) | 2021-03-24 | 2021-03-24 | High-precision electromagnetic flowmeter |
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| Publication Number | Publication Date |
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| CN214333911U true CN214333911U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120594932.9U Active CN214333911U (en) | 2021-03-24 | 2021-03-24 | High-precision electromagnetic flowmeter |
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| CN (1) | CN214333911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993393A (en) * | 2022-07-18 | 2022-09-02 | 河南新航流量仪表有限公司 | High-precision electromagnetic flowmeter |
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2021
- 2021-03-24 CN CN202120594932.9U patent/CN214333911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993393A (en) * | 2022-07-18 | 2022-09-02 | 河南新航流量仪表有限公司 | High-precision electromagnetic flowmeter |
| CN114993393B (en) * | 2022-07-18 | 2022-11-18 | 河南新航流量仪表有限公司 | High-precision electromagnetic flowmeter |
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