CN209820548U - Electromagnetic flowmeter convenient for stabilizing flow velocity distribution - Google Patents
Electromagnetic flowmeter convenient for stabilizing flow velocity distribution Download PDFInfo
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- CN209820548U CN209820548U CN201920891714.4U CN201920891714U CN209820548U CN 209820548 U CN209820548 U CN 209820548U CN 201920891714 U CN201920891714 U CN 201920891714U CN 209820548 U CN209820548 U CN 209820548U
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Abstract
The utility model discloses an electromagnetic flowmeter of convenient stable velocity of flow distribution, including protective housing, excitation coil, survey buret and singlechip, protective housing's internally mounted has survey buret, and surveys buret outside protective housing's internally mounted and have excitation coil. The utility model discloses an install stationary flow mechanism, the extension is responsible for, turbulent impeller and turbulent flow board, make the device utilize the extension to be responsible for on the one hand and can guarantee to have sufficient liquid circulation length between inlet flange and the outlet flange, just so can guarantee to flow through the inside liquid distribution of measuring tube evenly stable, on the other hand utilizes the flow power of liquid to drive the turbulent impeller rotatory, mix liquid, make the inside liquid of pipeline become the turbulent flow by the laminar flow, and this principle that the velocity distribution of velocity distribution more laminar flow is more even based on the turbulent flow, make the inside liquid velocity distribution of velocity of flow of measuring tube more even, thereby the measuring precision has been promoted, be favorable to the device's long-term popularization.
Description
Technical Field
The utility model relates to an electromagnetic flowmeter technical field specifically is an electromagnetic flowmeter who makes things convenient for stable velocity of flow to distribute.
Background
With the development of electronic technology, various flow measuring instruments appear on the market, and an electromagnetic flow meter is popular in the industrial field because of good instantaneous flow measuring effect on fluid, and the electromagnetic flow meter is an instrument which measures the flow of a conductive fluid according to the electromotive force induced when the conductive fluid passes through an external magnetic field by applying the electromagnetic induction principle, but the existing electromagnetic flow meter still has the following problems when in use:
1. the traditional electromagnetic flowmeter generally has the problem that the flow velocity distribution of liquid in a measuring pipeline is difficult to stabilize, so that the measuring effect of the device is poor;
2. the existing electromagnetic flow meters on the market have the problems of simple structure and difficulty in combination and disassembly, so that the device is difficult to clean and maintain and is not beneficial to long-term popularization;
3. the existing electromagnetic flowmeter also has the problems of difficult maintenance and poor heat dissipation effect, which greatly influences the service life of the device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a convenient stable velocity of flow distribution's electromagnetic flowmeter to solve difficult stable velocity of flow distribution, simple structure, difficult combination and the dismantlement that propose among the above-mentioned background art and difficult maintenance and the not good problem of radiating effect.
In order to achieve the above object, the utility model provides a following technical scheme: an electromagnetic flowmeter convenient for stabilizing flow velocity distribution comprises a protective shell, an excitation coil, a measuring tube and a singlechip, the measuring tube is arranged in the protective shell, the magnet exciting coil is arranged in the protective shell outside the measuring tube, and the measuring tube at one end of the magnet exciting coil is provided with an electrode, one end of the measuring tube is provided with a flow stabilizing mechanism, an outlet flange is arranged at the other end of the measuring tube, a casing is arranged at the top end of the measuring tube, an installation block is welded at the bottom end of the casing, an installation groove matched with the installation block is arranged at the top end of the protective casing, the mounting block and the mounting groove are in threaded connection, one side of the casing is provided with a liquid crystal display screen, one end of the casing is provided with an access panel, and a circuit board is fixed in the shell, a single chip microcomputer is installed on the circuit board, and a fan is installed at the top end in the shell.
Preferably, the inside of protecting sheathing lateral wall is provided with the anti-electromagnetic interference layer, and the inside on anti-electromagnetic interference layer evenly is provided with the wire netting to constitute integrated welded structure between protecting sheathing and the survey buret.
Preferably, the horizontal center line of the protective shell and the horizontal center line of the measuring pipe are on the same straight line, the inner side wall of the measuring pipe is provided with a corrosion-resistant insulating lining, the corrosion-resistant insulating lining is made of high-purity alumina ceramic, and turbulence plates which are irregularly arranged are uniformly arranged at one end, far away from the outlet flange, of the inside of the measuring pipe.
Preferably, last inlet flange, filter screen, the extension of having set gradually of stationary flow mechanism is responsible for, bearing, turbulent impeller, second assembly pipe and the silica gel sealing washer, and the extension is responsible for the one end of keeping away from protective housing and is provided with inlet flange, and inlet flange's inside is provided with the filter screen to the extension is responsible for inside top and the bottom and all evenly is provided with the turbulent impeller that is irregular arrangement, and turbulent impeller passes through the bearing and is responsible for inner wall connection with the extension.
Preferably, the extension is responsible for the one end that is close to surveying buret and is provided with the second assembly pipe, survey be provided with on the buret with the first assembly pipe of second assembly pipe assorted, and constitute threaded connection between first assembly pipe and the second assembly pipe, the one end that the second assembly pipe is close to first assembly pipe is provided with the silica gel sealing washer, the edge of import flange and outlet flange all evenly is provided with the screw thread mounting hole, and the one end that the buret was kept away from to import flange and outlet flange all is provided with anti-skidding silica gel pad.
Preferably, evenly be provided with the aluminum alloy heating panel on the access panel, evenly be provided with the louvre on the aluminum alloy heating panel, and one side that the aluminum alloy heating panel is close to the circuit board is provided with waterproof ventilated membrane, and the both ends of access panel have all welded the cutting simultaneously, be provided with on the casing with cutting assorted slot, and evenly be provided with fixing bolt between cutting and the slot.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the electromagnetic flowmeter convenient for stabilizing the flow velocity distribution is provided with the flow stabilizing mechanism, the lengthened main pipe, the turbulent flow impeller and the turbulent flow plate, so that on one hand, the lengthened main pipe is utilized by the electromagnetic flowmeter to ensure that enough liquid circulation length exists between the inlet flange and the outlet flange, and thus, the liquid flowing through the measuring pipe can be ensured to be uniformly and stably distributed, on the other hand, the turbulent flow impeller is driven by the flow force of the liquid to rotate to mix the liquid, so that the liquid in the pipeline is changed into the turbulent flow from the laminar flow, and the flow velocity distribution based on the turbulent flow is more uniform than that of the laminar flow, so that the liquid flow velocity distribution in the measuring pipe is more uniform, the measuring precision is improved, and the electromagnetic flowmeter is favorable for;
(2) the electromagnetic flowmeter convenient for stabilizing the flow velocity distribution optimizes the structure of the device by installing the casing, the installation block, the installation groove, the protection casing, the measuring tube, the flow stabilizing mechanism, the first assembly tube and the second assembly tube, so that a user can conveniently disassemble or combine the casing, the flow stabilizing mechanism and the device, the inner wall of the measuring tube and the inner wall of the flow stabilizing mechanism can be conveniently cleaned by the user, and the practicability of the device is enhanced;
(3) this convenient stable flow velocity distribution's electromagnetic flowmeter is through installing the casing, a circuit board, the access panel, the cutting, the slot, fixing bolt, the fan, aluminum alloy heating panel, louvre and waterproof ventilated membrane, make the device user of facilitating the use utilize the cutting on the one hand, the effect of slot and fixing bolt, dismantle and install the access panel, thereby the user of facilitating the use maintains the inside electronic component of casing, on the other hand utilizes the fan, the effect of aluminum alloy heating panel and louvre, better air-cooled radiating effect has been realized, produced heat loss when having alleviateed electronic component operation, and utilize the effect of waterproof ventilated membrane, can avoid outside steam inside the suction casing, cause electronic component's damage, thereby the result of use of device has been promoted.
Drawings
Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the front view cross section of the flow stabilizing mechanism of the present invention;
fig. 4 is a schematic diagram of the side view profile structure of the housing of the present invention.
In the figure: 1. an outlet flange; 2. a protective housing; 3. an anti-electromagnetic interference layer; 4. a metal mesh; 5. a corrosion resistant insulating lining; 6. a field coil; 7. a turbulent flow plate; 8. a flow stabilizing mechanism; 801. a filter screen; 802. a silica gel seal ring; 803. an inlet flange; 804. a bearing; 805. a turbulent flow impeller; 806. lengthening the main pipe; 807. a second assembly pipe; 9. a first assembly pipe; 10. mounting grooves; 11. a housing; 12. a liquid crystal display screen; 13. an electrode; 14. a measurement tube; 15. heat dissipation holes; 16. an aluminum alloy heat dissipation plate; 17. cutting; 18. an access panel; 19. an anti-slip silica gel pad; 20. a threaded mounting hole; 21. a single chip microcomputer; 22. a fan; 23. a circuit board; 24. a slot; 25. mounting blocks; 26. and (5) fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: an electromagnetic flowmeter convenient for stabilizing flow velocity distribution comprises a protective shell 2, an excitation coil 6, a measuring tube 14 and a single chip microcomputer 21, wherein the measuring tube 14 is arranged inside the protective shell 2, the excitation coil 6 is arranged inside the protective shell 2 outside the measuring tube 14, an electrode 13 is arranged on the measuring tube 14 at one end of the excitation coil 6, a flow stabilizing mechanism 8 is arranged at one end of the measuring tube 14, an outlet flange 1 is arranged at the other end of the measuring tube 14, a shell 11 is arranged at the top end of the measuring tube 14, an anti-electromagnetic interference layer 3 is arranged inside the side wall of the protective shell 2, metal mesh wires 4 are uniformly arranged inside the anti-electromagnetic interference layer 3, and an integrated welding structure is formed between the protective shell 2 and the measuring tube 14;
when in use, the use effect of the device is improved by utilizing the performances of the anti-electromagnetic interference layer 3 and the metal mesh 4;
the horizontal center line of the protective shell 2 and the horizontal center line of the measuring pipe 14 are on the same straight line, the inner side wall of the measuring pipe 14 is provided with a corrosion-resistant insulating lining 5, the corrosion-resistant insulating lining 5 is made of high-purity alumina ceramic, and one end of the measuring pipe 14, which is far away from the outlet flange 1, is uniformly provided with irregularly-arranged turbulent flow plates 7;
the structure of the device is optimized, the corrosion resistance and the adhesion resistance of the high-purity alumina ceramic are utilized, so that the inside of the measuring tube 14 is not easy to corrode, the washing is convenient, and the adhesion of a large amount of impurities to the inner wall of the measuring tube is avoided, thereby enhancing the practicability of the device;
the flow stabilizing mechanism 8 is sequentially provided with an inlet flange 803, a filter screen 801, a lengthened main pipe 806, a bearing 804, a turbulent flow impeller 805, a second assembling pipe 807 and a silica gel sealing ring 802, one end of the lengthened main pipe 806, which is far away from the protective shell 2, is provided with the inlet flange 803, the filter screen 801 is arranged inside the inlet flange 803, the top end and the bottom end inside the lengthened main pipe 806 are uniformly provided with the turbulent flow impellers 805 which are irregularly arranged, and the turbulent flow impeller 805 is connected with the inner wall of the lengthened main pipe 806 through the bearing 804;
a second assembling pipe 807 is arranged at one end of the lengthened main pipe 806 close to the measuring pipe 14, a first assembling pipe 9 matched with the second assembling pipe 807 is arranged on the measuring pipe 14, the first assembling pipe 9 and the second assembling pipe 807 form threaded connection, a silica gel sealing ring 802 is arranged at one end of the second assembling pipe 807 close to the first assembling pipe 9, threaded mounting holes 20 are uniformly formed in the edges of the inlet flange 803 and the outlet flange 1, and anti-skid silica gel pads 19 are arranged at one ends of the inlet flange 803 and the outlet flange 1 far away from the measuring pipe 14;
when the device is used, on one hand, the flow stabilizing mechanism 8 can be conveniently detached and cleaned from the device by a user by utilizing the threaded connection effect between the first assembling pipe 9 and the second assembling pipe 807, on the other hand, the sufficient liquid circulation length between the inlet flange 803 and the outlet flange 1 can be ensured by arranging the lengthened main pipe 806, so that the liquid flowing through the measuring pipe 14 can be ensured to be uniformly and stably distributed, the turbulent impeller 805 is driven to rotate by the flow force of the liquid to mix the liquid, the liquid in the pipe is changed from laminar flow to turbulent flow, and the flow velocity distribution based on the turbulent flow is more uniform than that of the laminar flow, so that the flow velocity distribution of the liquid in the measuring pipe 14 is more uniform, the measuring precision is improved, and the device is favorable for long-term popularization;
the bottom end of the machine shell 11 is welded with an installation block 25, the top end of the protective shell 2 is provided with an installation groove 10 matched with the installation block 25, the installation block 25 and the installation groove 10 are in threaded connection, one side of the machine shell 11 is provided with a liquid crystal display 12, one end of the machine shell 11 is provided with an access panel 18, a circuit board 23 is fixed inside the machine shell 11, a single chip microcomputer 21 is installed on the circuit board 23, the top end inside the machine shell 11 is provided with a fan 22, the access panel 18 is uniformly provided with an aluminum alloy heat dissipation panel 16, the aluminum alloy heat dissipation panel 16 is uniformly provided with heat dissipation holes 15, one side of the aluminum alloy heat dissipation panel 16 close to the circuit board 23 is provided with a waterproof breathable film, two ends of the access panel 18 are welded with inserting strips 17, the machine shell 11 is provided with inserting grooves 24 matched;
by utilizing the matching action of the inserting strips 17, the slots 24 and the fixing bolts 26, a user can conveniently detach and install the access panel 18, so that the user can conveniently overhaul and maintain the interior of the device, and the functionality of the device is enhanced;
the output end of the single chip microcomputer 21 is electrically connected with the input ends of the magnet exciting coil 6 and the fan 22 through conducting wires respectively, the output end of the electrode 13 is electrically connected with the input end of the single chip microcomputer 21 through conducting wires, the output end of the single chip microcomputer 21 is electrically connected with the input end of the liquid crystal display screen 12 through conducting wires, the type of the magnet exciting coil 6 can be YCT-225, the type of the electrode 13 can be M6, the type of the single chip microcomputer 21 can be HT66F018, the type of the liquid crystal display screen 12 can be HD52100, and the type of the fan 22 can be TA 12025.
The working principle is as follows: when in use, the external power supply is connected, a worker firstly utilizes the effect of the thread mounting holes 20 arranged on the outlet flange 1 and the inlet flange 803 to connect the device with a corresponding pipeline, liquid enters the inside of the flow stabilizing mechanism 8 from the inlet flange 803 to realize the flow stabilizing effect, concretely, on one hand, the lengthened main pipe 806 can ensure that enough liquid circulation length exists between the inlet flange 803 and the outlet flange 1, thus ensuring the uniform and stable distribution of the liquid flowing through the measuring pipe 14, on the other hand, the turbulent impeller 805 is driven to rotate by the flowing force of the liquid to mix the liquid, so that the liquid in the pipeline is changed from laminar flow to turbulent flow, and the flow velocity distribution of the liquid in the measuring pipe 14 is more uniform based on the principle that the flow velocity distribution of the turbulent flow is more uniform than that of the laminar flow, thereby improving the measuring precision and being beneficial to the long-term popularization of the device, magnet exciting coil 6 is started the back, survey the inside magnetic field that can produce of buret 14, based on the electromagnetic induction principle, electrode 13 can detect out the liquid flow who contacts rather than, and send the data that detect for singlechip 21, after singlechip 21's integration processing, singlechip 21 can control liquid crystal display 12 and show corresponding measured data, furthermore, when the device is idle, the user can utilize the threaded connection effect between second assembly pipe 807 and the first assembly pipe 9, dismantle steady flow mechanism 8, and utilize the threaded connection effect between installation piece 25 and the mounting groove 10, dismantle casing 11, thereby make the user wash the scale removal to the inner wall of steady flow mechanism 8 and buret 14, the functionality of device has been strengthened, be favorable to the long-term popularization of device.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a convenient stable velocity of flow distribution's electromagnetic flowmeter, includes protective housing (2), excitation coil (6), surveys buret (14) and singlechip (21), its characterized in that: the utility model discloses a transformer substation, including protective housing (2), the internally mounted of protective housing (2) has survey buret (14), and surveys the internally mounted of buret (14) outside protective housing (2) and have excitation coil (6), and install electrode (13) on survey buret (14) of excitation coil (6) one end, steady flow mechanism (8) are installed to the one end of surveying buret (14), and the other end of surveying buret (14) is provided with outlet flange (1), and casing (11) are installed on the top of surveying buret (14), the bottom welding of casing (11) has installation piece (25), and the top of protective housing (2) is provided with and installs piece (25) assorted mounting groove (10), and constitutes threaded connection between installation piece (25) and mounting groove (10), liquid crystal display (12) are installed to one side of casing (11), and the one end of casing (11) is provided with access panel (18), and the inside of casing, and a singlechip (21) is installed on the circuit board (23), and a fan (22) is installed at the top end inside the shell (11).
2. An electromagnetic flowmeter facilitating stable flow velocity distribution according to claim 1, wherein: the anti-electromagnetic interference type measuring pipe is characterized in that an anti-electromagnetic interference layer (3) is arranged inside the side wall of the protective shell (2), metal mesh wires (4) are uniformly arranged inside the anti-electromagnetic interference layer (3), and an integrated welding structure is formed between the protective shell (2) and the measuring pipe (14).
3. An electromagnetic flowmeter facilitating stable flow velocity distribution according to claim 1, wherein: the horizontal center line of protection casing (2) and the horizontal center line of surveying buret (14) are on the collinear, and the inside wall of surveying buret (14) is provided with corrosion-resistant insulating lining (5), and the material of corrosion-resistant insulating lining (5) is high-purity alumina ceramics to the inside one end of keeping away from outlet flange (1) of surveying buret (14) evenly is provided with turbulent plate (7) that are irregular arrangement.
4. An electromagnetic flowmeter facilitating stable flow velocity distribution according to claim 1, wherein: the flow stabilizing mechanism (8) is sequentially provided with an inlet flange (803), a filter screen (801), a lengthened main pipe (806), a bearing (804), a turbulent flow impeller (805), a second assembling pipe (807) and a silica gel sealing ring (802), one end, far away from the protective shell (2), of the lengthened main pipe (806) is provided with the inlet flange (803), the filter screen (801) is arranged inside the inlet flange (803), the top end and the bottom end inside the lengthened main pipe (806) are uniformly provided with the turbulent flow impeller (805) which are arranged irregularly, and the turbulent flow impeller (805) is connected with the inner wall of the lengthened main pipe (806) through the bearing (804).
5. An electromagnetic flowmeter facilitating stable flow velocity distribution according to claim 4, wherein: the one end that the extension is responsible for (806) and is close to buret (14) is provided with second assembly pipe (807), be provided with on buret (14) with first assembly pipe (9) of second assembly pipe (807) assorted, and constitute threaded connection between first assembly pipe (9) and second assembly pipe (807), the one end that second assembly pipe (807) are close to first assembly pipe (9) is provided with silica gel sealing washer (802), the edge of import flange (803) and outlet flange (1) all evenly is provided with screw thread mounting hole (20), and the one end of surveying buret (14) is kept away from in import flange (803) and outlet flange (1) all is provided with anti-skidding silica gel pad (19).
6. An electromagnetic flowmeter facilitating stable flow velocity distribution according to claim 1, wherein: evenly be provided with aluminum alloy heating panel (16) on access panel (18), evenly be provided with louvre (15) on aluminum alloy heating panel (16), and aluminum alloy heating panel (16) is close to one side of circuit board (23) and is provided with waterproof ventilated membrane, and the both ends of access panel (18) all weld simultaneously have cutting (17), be provided with on casing (11) with cutting (17) assorted slot (24), and evenly be provided with between cutting (17) and slot (24) fixing bolt (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891714.4U CN209820548U (en) | 2019-06-14 | 2019-06-14 | Electromagnetic flowmeter convenient for stabilizing flow velocity distribution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891714.4U CN209820548U (en) | 2019-06-14 | 2019-06-14 | Electromagnetic flowmeter convenient for stabilizing flow velocity distribution |
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| Publication Number | Publication Date |
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| CN209820548U true CN209820548U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920891714.4U Active CN209820548U (en) | 2019-06-14 | 2019-06-14 | Electromagnetic flowmeter convenient for stabilizing flow velocity distribution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504403A (en) * | 2020-03-21 | 2020-08-07 | 江苏中仪仪表集团有限公司 | Electromagnetic flow meter for plant protection machine |
| CN113069952A (en) * | 2021-05-13 | 2021-07-06 | 盾构及掘进技术国家重点实验室 | Mixing device for improving measurement precision of shield mud electromagnetic flowmeter |
-
2019
- 2019-06-14 CN CN201920891714.4U patent/CN209820548U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504403A (en) * | 2020-03-21 | 2020-08-07 | 江苏中仪仪表集团有限公司 | Electromagnetic flow meter for plant protection machine |
| CN111504403B (en) * | 2020-03-21 | 2023-01-10 | 江苏中仪仪表集团有限公司 | Electromagnetic flowmeter for plant protection machine |
| CN113069952A (en) * | 2021-05-13 | 2021-07-06 | 盾构及掘进技术国家重点实验室 | Mixing device for improving measurement precision of shield mud electromagnetic flowmeter |
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