CN116026424B - Sealing structure of plug-in electromagnetic flowmeter and preparation method - Google Patents
Sealing structure of plug-in electromagnetic flowmeter and preparation method Download PDFInfo
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- CN116026424B CN116026424B CN202211633046.8A CN202211633046A CN116026424B CN 116026424 B CN116026424 B CN 116026424B CN 202211633046 A CN202211633046 A CN 202211633046A CN 116026424 B CN116026424 B CN 116026424B
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- main body
- shell
- sealing ring
- partition plate
- injection molding
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- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title description 5
- 238000005192 partition Methods 0.000 claims abstract description 56
- 238000001746 injection moulding Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a sealing structure of an inserted electromagnetic flowmeter, which comprises a shell, electrodes, a main body injection molding layer, a partition plate and a main body, wherein the main body is fixedly connected to the front end of the partition plate through a connecting bolt, the electrodes are provided with a pair of electrodes, the two electrodes are symmetrically and fixedly arranged on the outer side wall of the main body through compression nuts, detection contacts of the electrodes penetrate through the side wall of the main body and extend into an inner cavity of the main body, the main body and the partition plate are changed from original threaded connection into bolt connection, and a mounting flange is added, so that the extending length of the main body is ensured, and the accurate sealing between the shell and the main body is possible. After the partition body and the main body are connected by adopting an integrated processing technology, the partition body and the main body are uniformly processed, so that the installation precision between the partition body and the shell is ensured to be higher, and the assemblability is more reliable. The yield is increased.
Description
Technical Field
The invention relates to the field of electromagnetic flowmeters, in particular to a sealing structure of an inserted electromagnetic flowmeter.
Background
The electromagnetic flowmeter is a novel flow meter for measuring the flow of the conductive fluid according to the induced electromotive force generated by the conductive fluid through an external magnetic field based on the working principle of Faraday electromagnetic induction law. The plug-in electromagnetic flowmeter is one of electromagnetic flowmeters, has compact structure and small appearance, and has important application in a plurality of special occasions.
However, the existing product has the defects of low installation yield, low tightness and water leakage in a high-pressure environment.
Disclosure of Invention
The invention aims to provide a sealing structure of an inserted electromagnetic flowmeter, which is characterized in that a main body and a partition plate are changed from original threaded connection into bolt connection, a mounting flange is added, the extension length of the main body is ensured, and the accurate sealing between a shell and the main body is possible. After the partition body and the main body are connected by adopting an integrated processing technology, the partition body and the main body are uniformly processed, so that the installation precision between the partition body and the shell is ensured to be higher, and the assemblability is more reliable. The yield is increased.
The utility model provides an inserted electromagnetic flowmeter leakproofness structure, includes shell, electrode, main part injection moulding layer, baffle and main part, the main part passes through connecting bolt fixed connection in the front end of baffle, the electrode is equipped with a pair of, and two electrodes pass through gland nut symmetry's fixed mounting on the main part lateral wall, and the detection contact of electrode stretches into in the inner chamber of main part through the lateral wall of main part;
the shell is fixedly connected to the outer side walls of the partition plate and the main body, the main body injection molding layer is positioned on the inner side walls attached to the main body, and the main body injection molding layer is fixedly connected with the shell, the partition plate and the main body.
Preferably, two sealing ring mounting grooves are further formed in the contact surface of the partition plate and the shell, and a first sealing ring and a second sealing ring are respectively arranged in the two sealing ring mounting grooves.
Preferably, a sealing ring mounting groove is arranged on the contact surface between the outer side of the main body and the shell, a sealing ring III is arranged in the sealing ring mounting groove, and a sealing ring IV is also arranged between the outer end of the main body and the shell
The preparation method for preparing the sealing structure of the plug-in electromagnetic flowmeter comprises the following steps: the method comprises the following steps:
step one: firstly, attaching a main body to a partition plate, then fixedly connecting the main body and the partition plate together through a connecting bolt, and adjusting the distance L1 between the inner end surface of the partition plate and the mounting surface of the main body and the gap distance L2 between the outer end surface of the main body and a shell through adjusting the tightness of the connecting bolt;
step two: a channel seal ring mounting groove is formed in the partition plate and the main body, then a seal ring I, a seal ring II and a seal ring III are mounted, then a shell is mounted, and finally a seal ring IV is mounted in a gap between the outer end of the main body and the shell after the shell is mounted and fixed;
step three: and (3) performing injection molding in the inner cavity of the main body to form a main body injection molding layer, reserving enough allowance when the main body is in lodging, and finally processing the main body injection molding layer into a required shape and size.
Preferably, the material of the main injection molding layer is F46 plastic.
Preferably, the distance L3 from the inner end surface of the partition plate to the outer end surface of the injection molding layer can also be adjusted by adjusting the tightness of the connecting bolts.
The invention has the advantages that: the main body and the partition plate are changed from original threaded connection into bolt connection, and the mounting flange is added, so that the extension length of the main body is ensured, and the accurate sealing between the shell and the main body is possible. After the partition body and the main body are connected by adopting an integrated processing technology, the partition body and the main body are uniformly processed, so that the installation precision between the partition body and the shell is ensured to be higher, and the assemblability is more reliable. The yield is increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the device of the present invention;
FIG. 2 is a schematic view of the apparatus of the present invention after injection molding is completed;
the inner end face of the partition board, 02, the main body mounting face, 03, the outer end face of the injection molding layer, 1, a first sealing ring, 2, a second sealing ring, 3, a shell, 4, an electrode, 5, a compression nut, 6, a third sealing ring, 7, a fourth sealing ring, 8, a main body injection molding layer, 9, the partition board, 10, a main body, 11 and a connecting bolt.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 2, the invention comprises a shell 3, an electrode 4, a main body injection molding layer 8, a partition plate 9 and a main body 10, wherein the main body 10 is fixedly connected to the front end of the partition plate 9 through a connecting bolt 11, the electrode 4 is provided with a pair, the two electrodes 4 are symmetrically and fixedly arranged on the outer side wall of the main body 10 through a compression nut 5, and a detection contact of the electrode 4 penetrates through the side wall of the main body 10 and stretches into an inner cavity of the main body 10;
the shell 3 is fixedly connected to the outer side walls of the partition plate 9 and the main body 10, the main body injection molding layer 8 is positioned on the inner side walls attached to the main body 10, and the main body injection molding layer 8 is fixedly connected with the shell 3, the partition plate 9 and the main body 10.
In particular, two sealing ring mounting grooves are further formed in the contact surface of the partition plate 9 and the shell 3, and a first sealing ring 1 and a second sealing ring 2 are respectively arranged in the two sealing ring mounting grooves. The sealing ring mounting groove is formed in the contact surface between the outer side of the main body 10 and the shell 3, the sealing ring III 6 is mounted in the sealing ring mounting groove, and the sealing ring IV 7 is further arranged between the outer end of the main body 10 and the shell 3.
The main body and the partition plate are connected by bolts, so that the distances L1, L2 and L3 can be accurately controlled, and the sealing performance is more stable and reliable; after the partition plate is connected with the main body through bolts, threads and sealing ring grooves are uniformly machined, so that the assemblability of the partition plate and the shell is improved, and the yield is greatly improved;
the preparation method for preparing the sealing structure of the plug-in electromagnetic flowmeter comprises the following steps: the method comprises the following steps:
step one: firstly, attaching a main body 10 and a partition plate 9, then fixedly connecting the main body 10 and the partition plate 9 together through a connecting bolt 11, and adjusting the distance L1 between the inner end face 01 of the partition plate and a main body mounting face 02 and the gap distance L2 between the outer end face of the main body 10 and a shell 3 through adjusting the tightness of the connecting bolt 11;
step two: 3 sealing ring mounting grooves are formed in the partition plate 9 and the main body 10, then a first sealing ring 1, a second sealing ring 2 and a third sealing ring 6 are mounted, the outer shell 3 is mounted, after the outer shell 3 is mounted and fixed, a fourth sealing ring 7 is mounted in a gap between the outer end of the main body 10 and the outer shell 3;
step three: the body injection layer 8 is formed by injection molding in the cavity of the body 10, and is left with enough margin when lodging, and finally is processed into the required shape and size.
In particular, the material of the main injection molding layer 8 is F46 plastic. The distance L3 from the inner end face 01 of the partition plate to the outer end face 03 of the injection molding layer can also be adjusted by adjusting the tightness of the connecting bolt 11.
Specific embodiments and principles:
in the production and preparation process, the main body 10 is attached to the partition plate 9, then the main body 10 and the partition plate 9 are fixedly connected together through the connecting bolts 11, and the distance L1 between the inner end face 01 of the partition plate and the main body mounting face 02 and the gap distance L2 between the outer end face of the main body 10 and the shell 3 are adjusted through adjusting the tightness of the connecting bolts 11;
then, 3 seal ring mounting grooves are formed in the partition plate 9 and the main body 10, then a first seal ring 1, a second seal ring 2 and a third seal ring 6 are mounted, the shell 3 is mounted, and finally a fourth seal ring 7 is mounted in a gap between the outer end of the main body 10 and the shell 3 after the shell 3 is mounted and fixed;
finally, injection molding is performed in the inner cavity of the main body 10 to form a main body injection molding layer 8, enough allowance is reserved when the main body injection molding layer is lodged, and the main body injection molding layer is finally processed into a required shape and size.
The main body and the partition plate are connected by bolts, so that the distances L1, L2 and L3 can be accurately controlled, and the sealing performance is more stable and reliable;
after the partition plate is connected with the main body through bolts, threads and sealing ring grooves are uniformly machined, so that the assemblability of the partition plate and the shell is improved, and the yield is greatly improved;
during injection molding, the injection molding of the tail part of the main body leaves enough margin, and the main body is processed to be of a safe size, so that the sealing performance of the main body and the installation of the shell can be protected; the main body is molded to leave enough allowance, the main body is processed to the required size, the compression allowance is 0.5-0.6 mm, the sealing can be ensured to the greatest extent, and the injection molding layer is not damaged at the same time
Based on the above, the invention changes the original threaded connection of the main body and the partition plate into the bolt connection, and increases the mounting flange, thereby ensuring the extension length of the main body and enabling the accurate sealing between the shell and the main body to be possible. After the partition body and the main body are connected by adopting an integrated processing technology, the partition body and the main body are uniformly processed, so that the installation precision between the partition body and the shell is ensured to be higher, and the assemblability is more reliable. The yield is increased.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (6)
1. The utility model provides a plug-in electromagnetic flowmeter leakproofness structure which characterized in that, includes shell (3), electrode (4), main part injection moulding layer (8), baffle (9) and main part (10), main part (10) are through connecting bolt (11) fixed connection at the front end of baffle (9), electrode (4) are equipped with a pair of, and two electrode (4) pass through gland nut (5) symmetrical fixed mounting on main part (10) lateral wall, and the detection contact of electrode (4) passes the lateral wall of main part (10) and stretches into in the inner chamber of main part (10);
the shell (3) is fixedly connected to the outer side walls of the partition plate (9) and the main body (10), the main body injection molding layer (8) is positioned on the inner side wall attached to the main body (10), and the main body injection molding layer (8) is fixedly connected with the shell (3), the partition plate (9) and the main body (10).
2. The plug-in electromagnetic flowmeter seal structure of claim 1, wherein: and two sealing ring mounting grooves are further formed in the contact surface of the partition plate (9) and the shell (3), and a first sealing ring (1) and a second sealing ring (2) are respectively arranged in the two sealing ring mounting grooves.
3. The plug-in electromagnetic flowmeter seal structure of claim 1, wherein: a sealing ring installation groove is formed in the contact surface between the outer side of the main body (10) and the shell (3), a sealing ring III (6) is installed in the sealing ring installation groove, and a sealing ring IV (7) is further arranged between the outer end of the main body (10) and the shell (3).
4. A method for preparing the sealing structure of the plug-in electromagnetic flowmeter of claim 1, which is characterized in that: the method comprises the following steps:
step one: firstly, attaching a main body (10) to a partition plate (9), then fixedly connecting the main body (10) and the partition plate through a connecting bolt (11), and adjusting the distance L1 between the inner end surface (01) of the partition plate and a main body mounting surface (02) and the gap distance L2 between the outer end surface of the main body (10) and a shell (3) through adjusting the tightness of the connecting bolt (11);
step two: 3 sealing ring mounting grooves are formed in the partition plate (9) and the main body (10), then a first sealing ring (1), a second sealing ring (2) and a third sealing ring (6) are mounted, then the shell (3) is mounted, and finally a fourth sealing ring (7) is mounted in a gap between the outer end of the main body (10) and the shell (3) after the shell (3) is mounted and fixed;
step three: and (3) performing injection molding in the inner cavity of the main body (10) to form a main body injection molding layer (8), reserving enough allowance during injection molding, and finally processing into a required shape and size.
5. The plug-in electromagnetic flowmeter seal of claim 4, wherein: the material of the main body injection molding layer (8) is F46 plastic.
6. The plug-in electromagnetic flowmeter seal of claim 4, wherein: the distance L3 from the inner end face (01) of the partition plate to the outer end face (03) of the injection molding layer can also be adjusted by adjusting the tightness of the connecting bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633046.8A CN116026424B (en) | 2022-12-19 | 2022-12-19 | Sealing structure of plug-in electromagnetic flowmeter and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633046.8A CN116026424B (en) | 2022-12-19 | 2022-12-19 | Sealing structure of plug-in electromagnetic flowmeter and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116026424A CN116026424A (en) | 2023-04-28 |
| CN116026424B true CN116026424B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211633046.8A Active CN116026424B (en) | 2022-12-19 | 2022-12-19 | Sealing structure of plug-in electromagnetic flowmeter and preparation method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253340A (en) * | 1979-09-12 | 1981-03-03 | Fischer & Porter Co. | Unitary electromagnetic flowmeter |
| JP2000171276A (en) * | 1998-12-08 | 2000-06-23 | Yokogawa Electric Corp | Ceramic electromagnetic flowmeter |
| CN208155376U (en) * | 2018-05-15 | 2018-11-27 | 孙景华 | Liner molding type electromagnetic flowmeter |
| CN208595936U (en) * | 2018-09-14 | 2019-03-12 | 天津市迅尔仪表科技有限公司 | A kind of electromagnetic flowmeter of high leakproofness |
| CN209927193U (en) * | 2019-05-24 | 2020-01-10 | 南京梅特朗测控仪表有限公司 | Electromagnetic flowmeter with high connection sealing performance |
| CN111912474A (en) * | 2020-07-14 | 2020-11-10 | 西安精准电子科技有限责任公司 | High-voltage-resistant electrode connecting structure of electromagnetic flowmeter sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004233203A (en) * | 2003-01-30 | 2004-08-19 | Yamatake Corp | Measuring tube for magnetic flowmeter |
-
2022
- 2022-12-19 CN CN202211633046.8A patent/CN116026424B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253340A (en) * | 1979-09-12 | 1981-03-03 | Fischer & Porter Co. | Unitary electromagnetic flowmeter |
| JP2000171276A (en) * | 1998-12-08 | 2000-06-23 | Yokogawa Electric Corp | Ceramic electromagnetic flowmeter |
| CN208155376U (en) * | 2018-05-15 | 2018-11-27 | 孙景华 | Liner molding type electromagnetic flowmeter |
| CN208595936U (en) * | 2018-09-14 | 2019-03-12 | 天津市迅尔仪表科技有限公司 | A kind of electromagnetic flowmeter of high leakproofness |
| CN209927193U (en) * | 2019-05-24 | 2020-01-10 | 南京梅特朗测控仪表有限公司 | Electromagnetic flowmeter with high connection sealing performance |
| CN111912474A (en) * | 2020-07-14 | 2020-11-10 | 西安精准电子科技有限责任公司 | High-voltage-resistant electrode connecting structure of electromagnetic flowmeter sensor |
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| CN116026424A (en) | 2023-04-28 |
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