CN211147758U - Electromagnetic flowmeter suitable for low velocity of flow - Google Patents
Electromagnetic flowmeter suitable for low velocity of flow Download PDFInfo
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- CN211147758U CN211147758U CN201922314677.3U CN201922314677U CN211147758U CN 211147758 U CN211147758 U CN 211147758U CN 201922314677 U CN201922314677 U CN 201922314677U CN 211147758 U CN211147758 U CN 211147758U
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Abstract
The utility model discloses an electromagnetic flowmeter suitable for low velocity of flow, including measuring pipe, interior bushing pipe, excitation coil, electrode, conversion display mechanism, quick connection structure and automatic reducing structure, measuring pipe's central point puts and is provided with the installation protective housing, interior bushing pipe is provided with two, two interior bushing pipe fixed mounting is in the inside both sides of measuring pipe respectively, excitation coil is provided with two, two excitation coil fixed mounting is lower extreme on the inside of installation protective housing respectively, the electrode is connected with automatic reducing structure, conversion display mechanism fixed mounting is in the top of measuring pipe, quick connection structure fixed mounting is in the one side that two interior bushing pipes kept away from each other. The utility model discloses be convenient for install for work efficiency when having improved the installation, when fluidic velocity of flow is lower moreover, can improve its velocity of flow through the mode of automatic reducing, improve monitoring result's accuracy, improved electromagnetic flowmeter's practicality on the whole.
Description
Technical Field
The utility model relates to a liquid flow monitoring facilities field specifically is an electromagnetic flow meter suitable for low velocity of flow.
Background
The electromagnetic flowmeter is a new type flow measuring instrument which is developed rapidly along with the development of electronic technology in the 50-60 th century, the electromagnetic flowmeter is an instrument which applies the electromagnetic induction principle and measures the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through an external magnetic field, the structure of the electromagnetic flowmeter mainly comprises a magnetic circuit system, a measuring conduit, an electrode, a shell, a lining, a converter and the like, the electromagnetic flowmeter is simply composed of a flow sensor transmitter, the installation requirement of the electromagnetic flowmeter is that the electromagnetic flowmeter is required to be installed at the lowest point of a pipeline or the vertical section of the pipeline, but the electromagnetic flowmeter is applied more and more widely under the condition of full pipe and along with the development of the era, and the electromagnetic flowmeter can be seen at the position of a plurality of fluid conveying pipelines.
However, the existing electromagnetic flow meter has the following disadvantages:
1. the pipeline connecting device is fixedly connected with the pipeline mostly through flanges and bolts, and therefore working efficiency is low during installation.
2. When the flow velocity of the fluid is low, the flow monitoring is not accurate enough, and the practicability is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electromagnetic flowmeter suitable for low velocity of flow to solve being connected between traditional electromagnetic flowmeter and the pipeline and carry out fixed connection mostly through flange and bolt, work efficiency is lower when leading to the installation, simultaneously when fluidic velocity of flow is lower, and is accurate inadequately to the monitoring of flow, the lower problem of practicality.
In order to achieve the above object, the utility model provides a following technical scheme: an electromagnetic flowmeter suitable for low flow velocity comprises a measuring conduit, a lining pipe, an excitation coil, an electrode, a conversion display mechanism, a quick connection structure and an automatic diameter-changing structure, the central position of the measuring catheter is provided with a mounting protective shell, two lining pipes are arranged, the two lining pipes are respectively and fixedly mounted at the two sides of the inside of the measuring catheter, the two excitation coils are respectively and fixedly arranged at the upper end and the lower end in the installation protective shell, the electrode is connected with the automatic diameter-changing structure, the conversion display mechanism is fixedly arranged at the top of the measuring conduit, the quick connection structure is fixedly arranged on one side, away from each other, of the two lining pipes, the automatic reducing structure is arranged inside the installation protection shell, and the two sides of the automatic reducing structure are fixedly connected with the two lining pipes respectively.
Preferably, the quick connection structure includes two quick threaded connection heads, two quick threaded connection heads are respectively fixed mounting in two one sides of keeping away from each other of interior bushing pipe, and two quick threaded connection heads's inside all seted up with bushing pipe assorted inner chamber, two quick threaded connection heads's outside all is provided with the thread connection groove.
Preferably, the outer parts of the two quick threaded connectors are respectively provided with sealing gaskets made of rubber materials in a manner of being close to the two lining pipes in an attaching manner.
Preferably, the automatic reducing structure comprises a connecting hose and a connecting spring, the two ends of the connecting hose are fixedly connected with one side, close to each other, of the two lining pipes through connecting pieces respectively, the connecting spring is fixedly installed at the bottom end of the installation protection shell, the top of the connecting spring is fixedly connected with the bottom of the connecting hose, and the initial horizontal height of the top of the connecting spring is higher than the bottom of the connecting hose.
Preferably, a telescopic connecting rod is arranged inside the connecting spring.
Preferably, the electrode is fixedly installed at the outside of the connection hose, and one end of the electrode extends through to the inner wall of the connection hose.
The utility model provides an electromagnetic flowmeter suitable for low velocity of flow possesses following beneficial effect:
(1) the utility model discloses a be provided with the measuring catheter, interior bushing pipe and quick connect structure, including two quick threaded connection head, make in installation electromagnetic flowmeter timing, can prepare in advance and quick threaded connection head assorted pipeline, then carry out threaded connection with the quick threaded connection head and pipeline with the measuring catheter together with interior bushing pipe, completion electromagnetic flowmeter's installation work that just can be quick, avoided needing to adopt flange and a plurality of bolt to be connected electromagnetic flowmeter and pipeline, thereby make installation electromagnetic flowmeter timing labour saving and time saving, then the work efficiency when effectual improvement electromagnetic flowmeter installs, the practicality of electromagnetic flowmeter has tentatively been improved.
(2) The utility model discloses a be provided with automatic reducing structure, make the electromagnetic flowmeter at the during operation, if the fluid velocity of flow in its interior bushing pipe is great when, then can strut connecting hose's bottom through fluidic velocity of flow impact force, enlarge connecting hose's circulation diameter, thereby it can not influence normal flow monitoring work to continue to make it, and if fluidic velocity of flow is lower, the coupling spring extension, drive connecting hose's bottom and shift up, then reduce connecting hose's circulation diameter, with this the velocity of flow when improving fluid process connecting hose, improve the monitoring accuracy of electromagnetic flowmeter to fluid flow, the practicality is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the internal structure of the measuring tube of the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
In the figure: 1. a measurement catheter; 2. a liner tube; 3. a field coil; 4. an electrode; 5. a switching display mechanism; 6. mounting a protective shell; 7. a quick threaded connector; 8. a sealing gasket; 9. a connecting hose; 10. a connecting spring; 11. a telescopic connecting rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution: an electromagnetic flowmeter suitable for low flow velocity comprises a measuring conduit 1, a lining pipe 2, an excitation coil 3, an electrode 4, a conversion display mechanism 5, a quick connection structure and an automatic diameter-changing structure, the central position of the measuring catheter 1 is provided with a mounting protective shell 6, two lining pipes 2 are arranged, the two lining pipes 2 are respectively and fixedly mounted at two sides of the inside of the measuring catheter 1, the number of the magnet exciting coils 3 is two, the two magnet exciting coils 3 are respectively and fixedly arranged at the upper end and the lower end of the inner part of the installation protection shell 6, the electrode 4 is connected with the automatic diameter-changing structure, the conversion display mechanism 5 is fixedly arranged at the top of the measuring catheter 1, the quick connection structure is fixedly arranged on one side, away from each other, of the two lining pipes 2, the automatic reducing structure is arranged inside the installation protection shell 6, and the two sides of the automatic reducing structure are fixedly connected with the two lining pipes 2 respectively.
The quick connection structure comprises two quick threaded connectors 7, the two quick threaded connectors 7 are respectively and fixedly installed on one sides, away from each other, of the two lining pipes 2, inner cavities matched with the lining pipes 2 are formed in the two quick threaded connectors 7, and threaded connection grooves are formed in the outer portions of the two quick threaded connectors 7, so that the quick threaded connectors 7 can be connected with matched conveying pipelines, and the working efficiency of the electromagnetic flowmeter during installation is improved;
sealing washers 8 made of rubber materials are respectively attached to the outer parts of the two quick threaded connectors 7 close to the two lining pipes 2, so that the sealing performance of the electromagnetic flowmeter after installation is improved;
the automatic diameter changing structure comprises a connecting hose 9 and a connecting spring 10, two ends of the connecting hose 9 are fixedly connected with one side, close to each other, of the two lining pipes 2 through connecting pieces respectively, the connecting spring 10 is fixedly installed at the bottom end inside the installation protective shell 6, the top of the connecting spring 10 is fixedly connected with the bottom of the connecting hose 9, and the initial horizontal height of the top of the connecting spring 10 is higher than the bottom of the connecting hose 9, so that the flow diameter of a fluid can be reduced when the flow rate of the fluid is lower by matching the connecting hose 9 with the connecting spring 10, and the flow rate of the fluid is improved;
the telescopic connecting rod 11 is arranged in the connecting spring 10, so that the connecting spring 10 is prevented from being damaged by dislocation;
the electrode 4 is fixedly installed outside the connection hose 9, and one end of the electrode 4 extends through the inner wall of the connection hose 9, so that the electrode 4 can be matched with the excitation coil 3 and other internal structures to complete the flow monitoring work.
The working principle is as follows: when the electromagnetic flowmeter is installed, two conveying pipelines matched with the quick threaded connectors 7 are prepared in advance, then the two quick threaded connectors 7 are fixedly connected with the two conveying pipelines through threads until the two conveying pipelines are abutted against the two rubber gaskets, so that the installation work of the electromagnetic flowmeter can be completed, when the electromagnetic flowmeter works, if the flow velocity of fluid is large, the bottom of the connecting hose 9 can be propped open through the flow velocity impact force of the fluid, the connecting spring 10 is contracted, so that the flow diameter of the connecting hose 9 is improved, the normal work of the electromagnetic flowmeter is prevented from being influenced, if the flow velocity of the fluid is low, the flow velocity impact force of the fluid is small, at the moment, the connecting spring 10 rebounds to drive the bottom of the connecting hose 9 to move upwards, the communication diameter inside the connecting hose 9 is reduced, and the flow of the fluid is unchanged, the flow velocity of the fluid can be improved, the accuracy of the electromagnetic flowmeter in flow monitoring is integrally avoided being reduced due to the fact that the flow velocity of the fluid is low, and therefore the practicability of the electromagnetic flowmeter is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an electromagnetic flowmeter suitable for low velocity of flow, includes measuring pipe (1), interior bushing pipe (2), excitation coil (3), electrode (4), conversion display mechanism (5), quick connect structure and automatic reducing structure, its characterized in that: the central point of survey pipe (1) puts and is provided with installation protective housing (6), interior bushing pipe (2) are provided with two, two interior bushing pipe (2) fixed mounting is respectively in the inside both sides of survey pipe (1), excitation coil (3) are provided with two, two excitation coil (3) are fixed mounting lower extreme on the inside of installation protective housing (6) respectively, electrode (4) are connected with automatic reducing structure, conversion display mechanism (5) fixed mounting is in the top of surveying pipe (1), quick connect structure fixed mounting is in the one side that bushing pipe (2) kept away from each other in two, automatic reducing structure installs in the inside of installation protective housing (6), just the both sides of automatic reducing structure are respectively with two interior bushing pipe (2) fixed connection.
2. An electromagnetic flowmeter adapted for low flow rates as set forth in claim 1 wherein: quick-connect structure includes two quick threaded connection head (7), two quick threaded connection head (7) respectively fixed mounting in two interior bushing pipe (2) one side of keeping away from each other, and two the inside of quick threaded connection head (7) all seted up with interior bushing pipe (2) assorted inner chamber, two the outside of quick threaded connection head (7) all is provided with the thread connection groove.
3. An electromagnetic flowmeter adapted for low flow rates as set forth in claim 2 wherein: two the outside of the quick threaded connector (7) is respectively provided with a sealing washer (8) which is made of rubber materials in a joint way close to the two lining pipes (2).
4. An electromagnetic flowmeter adapted for low flow rates as set forth in claim 1 wherein: automatic reducing structure includes coupling hose (9) and coupling spring (10), one side fixed connection that bushing pipe (2) are close to each other is passed through respectively at the both ends of coupling hose (9) through connecting piece and two, coupling spring (10) fixed mounting is in the inside bottom of installation protective housing (6), just the top of coupling spring (10) and the bottom fixed connection of coupling hose (9), the top initial level of coupling spring (10) is higher than the bottom of coupling hose (9).
5. An electromagnetic flowmeter adapted for low flow rates as set forth in claim 4 wherein: and a telescopic connecting rod (11) is arranged in the connecting spring (10).
6. An electromagnetic flowmeter adapted for low flow rates as set forth in claim 1 wherein: the electrode (4) is fixedly arranged outside the connecting hose (9), and one end of the electrode (4) penetrates through the inner wall of the connecting hose (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314677.3U CN211147758U (en) | 2019-12-20 | 2019-12-20 | Electromagnetic flowmeter suitable for low velocity of flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314677.3U CN211147758U (en) | 2019-12-20 | 2019-12-20 | Electromagnetic flowmeter suitable for low velocity of flow |
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| CN211147758U true CN211147758U (en) | 2020-07-31 |
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| CN201922314677.3U Active CN211147758U (en) | 2019-12-20 | 2019-12-20 | Electromagnetic flowmeter suitable for low velocity of flow |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268586A (en) * | 2020-11-05 | 2021-01-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN112903041A (en) * | 2021-01-20 | 2021-06-04 | 红旗仪表（江苏）有限公司 | Exciting coil shaping shell of electromagnetic flowmeter |
| CN115615524A (en) * | 2022-11-21 | 2023-01-17 | 江苏华尔威科技集团有限公司 | Split type electromagnetic flowmeter reliability test equipment |
-
2019
- 2019-12-20 CN CN201922314677.3U patent/CN211147758U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268586A (en) * | 2020-11-05 | 2021-01-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN112268586B (en) * | 2020-11-05 | 2024-03-26 | 南京梅特朗测控仪表有限公司 | Intelligent electromagnetic flowmeter for measuring slurry and measuring method thereof |
| CN112903041A (en) * | 2021-01-20 | 2021-06-04 | 红旗仪表（江苏）有限公司 | Exciting coil shaping shell of electromagnetic flowmeter |
| CN115615524A (en) * | 2022-11-21 | 2023-01-17 | 江苏华尔威科技集团有限公司 | Split type electromagnetic flowmeter reliability test equipment |
| CN115615524B (en) * | 2022-11-21 | 2023-11-21 | 江苏华尔威科技集团有限公司 | Split type electromagnetic flowmeter reliability test equipment |
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