CN112857530A - Electric float level meter measuring device and electric float level meter with same - Google Patents
Electric float level meter measuring device and electric float level meter with same Download PDFInfo
- Publication number
- CN112857530A CN112857530A CN202110284073.8A CN202110284073A CN112857530A CN 112857530 A CN112857530 A CN 112857530A CN 202110284073 A CN202110284073 A CN 202110284073A CN 112857530 A CN112857530 A CN 112857530A
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- Prior art keywords
- mounting
- rotating shaft
- float level
- measuring device
- mounting seat
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- 230000001681 protective effect Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 abstract description 19
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
- G01F23/36—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
- G01F23/366—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using optoelectrically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses an electric float level meter measuring device which comprises a mounting seat, wherein a mounting groove is formed in one end of the mounting seat, a rotating shaft which is rotatably connected with the mounting seat is arranged on the bottom surface of the mounting groove, the rotating shaft and the mounting seat are coaxially arranged, a clamping groove for mounting a central rod is formed in the center of one end of the rotating shaft, the central rod is fixedly connected with the rotating shaft, and a groove for mounting a reflecting plate is formed in the side wall of the rotating shaft; the side wall of the mounting seat is provided with a laser and a photoelectric sensor, and the axis of the laser is intersected with the reflecting plate. The electric float liquid level meter measuring device adopting the structure and the electric float liquid level meter with the measuring device can improve the measuring precision and sensitivity of the existing electric float liquid level meter.
Description
Technical Field
The invention relates to the technical field of structures of buoy liquid level meters, in particular to a measuring device of a buoy liquid level meter and an electric buoy liquid level meter with the measuring device.
Background
The electric float level meter can be used for measuring liquid level, interface level or density, outputting 4-20 mADC standard direct current signals and providing HART communication protocol output, and is widely applied to measurement of various liquids in normal-pressure or pressure containers in petroleum, chemical industry, pharmacy and other industries. The electric float level meter has the measuring principle that the torque arm is connected with the torque tube according to the gravity of the float and the buoyancy of liquid, so that the torque tube generates torsional moment, and the torsional deformation of the torque tube is utilized to change the angle of the reflecting plate, thereby generating 4-20mA current output. The electric float level meter measures by means of torsion, resistance needs to be overcome, and the precision and the sensitivity of liquid level measurement by adopting the Hall element are low.
Disclosure of Invention
The invention aims to provide a measuring device of an electric float level meter, which improves the measuring precision and sensitivity of the existing electric float level meter. Another object of the invention is to provide an electrical float level gauge with the above measuring device.
In order to achieve the purpose, the invention provides an electric float level meter measuring device which comprises a mounting seat, wherein a mounting groove is formed in one end of the mounting seat, a rotating shaft rotatably connected with the mounting seat is arranged on the bottom surface of the mounting groove, the rotating shaft and the mounting seat are coaxially arranged, a clamping groove for mounting a central rod is formed in the center of one end of the rotating shaft, the central rod is fixedly connected with the rotating shaft, and a groove for mounting a reflecting plate is formed in the side wall of the rotating shaft; the side wall of the mounting seat is provided with a laser and a photoelectric sensor, and the axis of the laser is intersected with the reflecting plate.
Preferably, the end of the rotating shaft is provided with a connector, and the connector is rotatably connected with a connecting hole formed in the bottom of the mounting seat through a bearing; the connector is coaxial with the rotating shaft.
Preferably, a first mounting plate and a second mounting plate are arranged on the side wall of the mounting seat, and the first mounting plate and the second mounting plate are vertically arranged; the center of first mounting panel is provided with the first mounting hole of fixed laser instrument, and the center of second mounting panel is provided with the second mounting hole of fixed photoelectric sensor.
An electric float level meter comprising the measuring device of the electric float level meter comprises a torsion tube, wherein one end of the torsion tube is fixedly connected with one end of a center rod, which is far away from a mounting seat, the other end of the torsion tube is fixedly connected with a buffer regulator, the middle part of the buffer regulator is fixedly connected with one end of a torque arm, the other end of the torque arm is connected with a cylinder body through a connecting rod, and two ends of the connecting rod are respectively hinged with the cylinder body and the torque arm; a protective cover is arranged outside the buffer regulator, the protective cover is fixedly connected with the fixed seat through a sleeve, the fixed seat and the sleeve are covered outside the torsion tube, and the buffer regulator is rotatably connected with the protective cover; be provided with the guard ring on the guard shield, the guard ring cover is established in the outside of moment arm, is provided with the through-hole that makes the moment arm pass and communicate with the protection casing on the guard ring.
Preferably, the middle part of the end head of the buffer regulator is provided with a supporting rod, the center of the protective cover is provided with a through hole for the supporting rod to pass through, and the supporting rod is rotatably connected with the protective cover through a bearing.
The invention relates to a measuring device of an electric float level meter and the electric float level meter with the measuring device, wherein a rotating shaft is arranged in the center of a mounting seat, a reflecting plate is arranged on the rotating shaft, a laser and a photoelectric sensor which are arranged on the mounting seat are arranged on two vertical mounting plates, a torsion tube drives the rotating shaft to generate torsional deformation through a central tube, so that the angle of the reflecting plate is changed, the incident angle is changed, the position of an irradiation point on the photoelectric sensor is changed, and the height of the liquid level is obtained by utilizing the characteristics of the photoelectric sensor. The bending deformation of the barrel on the torsion tube does not influence the rotation of the rotating shaft, so that the measurement accuracy of the electric float level meter is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a measuring device of an embodiment of an electric float level gauge and an electric float level gauge with the measuring device according to the invention;
FIG. 2 is a schematic structural diagram of an electric float level gauge according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the internal structure of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device according to the present invention;
FIG. 4 is a schematic structural view of a mounting seat of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device according to the present invention;
FIG. 5 is a schematic top view of a mounting seat of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device according to the present invention;
FIG. 6 is a schematic view of a rotating shaft structure of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device according to the present invention;
fig. 7 is a schematic view of a rotating shaft front view structure of an embodiment of an electric float level meter measuring device and an electric float level meter with the measuring device of the invention.
Reference numerals
1. A protective cover; 2. a guard ring; 3. a barrel; 4. a connecting rod; 5. a torque arm; 6. a sleeve; 7. a fixed seat; 8. a center pole; 9. a mounting seat; 10. a rotating shaft; 11. a laser; 12. a photosensor; 13. a torsion tube; 14. a buffer adjuster; 15. a support bar; 16. a reflective plate; 17. a first mounting plate; 18. a first mounting hole; 19. a second mounting plate; 20. a second mounting hole; 21. connecting holes; 22. a card slot; 23. a connecting head.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic structural diagram of a measuring device of an embodiment of an electric float level meter and an electric float level meter with the measuring device of the invention. As shown in the figure, the measuring device of the electric float level meter comprises a mounting seat 9, wherein the mounting seat 9 is of a cylindrical structure. The inside mounting groove that is provided with of one end of mount pad 9 is provided with the pivot 10 of being connected with mount pad 9 rotation on the bottom surface of mounting groove, pivot 10 and the coaxial setting of mount pad 9. A clamping groove 22 for installing the central rod 8 is formed in the center of one end of the rotating shaft 10, and one end of the central rod 8 is inserted into the clamping groove 22 and fixedly connected with the rotating shaft 10. The side wall of the rotating shaft 10 is provided with a groove for installing the reflection plate 16, and the reflection plate 16 is fixedly installed in the groove. A laser 11 and a photoelectric sensor 12 are arranged on the side wall of the mounting seat 9, and the axis of the laser 11 is intersected with the reflecting plate 16. Light generated by the laser 11 is reflected to the photoelectric sensor 12 through the emitting plate, the photoelectric sensor 12 is of an existing structure, and different electric signals are emitted by the photoelectric sensor 12 according to different positions of the reflected light received by the photoelectric sensor 12 and are used for calibrating different liquid level values.
Fig. 4 is a schematic structural view of a mounting seat of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention, and fig. 5 is a schematic structural view of a mounting seat of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention. As shown in the figure, a first mounting plate 17 and a second mounting plate 19 are arranged on the side wall of the mounting base 9, and the first mounting plate 17 and the second mounting plate 19 are vertically arranged. The first mounting board 17 is provided at the center with a first mounting hole 18 for fixing the laser 11, and the second mounting board 19 is provided at the center with a second mounting hole 20 for fixing the photosensor 12.
Fig. 6 is a schematic view of a rotating shaft structure of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention, and fig. 7 is a schematic view of a rotating shaft front view structure of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention. As shown in the figure, the end of the rotating shaft 10 is provided with a connector 23, and the connector 23 is arranged coaxially with the rotating shaft 10. The connecting head 23 is rotatably connected with a connecting hole 21 arranged at the bottom of the mounting seat 9 through a bearing.
Fig. 2 is a schematic structural diagram of an electric float level gauge of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention, and fig. 3 is a schematic structural diagram of an internal structure of an embodiment of an electric float level gauge measuring device and an electric float level gauge with the measuring device of the invention. As shown in the figure, the electric float level meter comprises a torsion tube 13, and one end of the torsion tube 13 is fixedly connected with one end of the central rod 8 far away from the mounting seat 9 in a welding mode. The other end of the torsion tube 13 is fixedly connected with a buffer adjuster 14, and the buffer adjuster 14 adopts the existing structure, so that the bending deformation of the torsion tube 13 is reduced. The middle part of buffer adjustment ware 14 and the one end fixed connection of moment arm 5, the other end of moment arm 5 passes through connecting rod 4 to be connected with barrel 3, and the both ends of connecting rod 4 are articulated with barrel 3 and moment arm 5 respectively.
The outside of buffer regulator 14 is provided with protection casing 1, and protection casing 1 passes through sleeve 6 and fixing base 7 fixed connection. The fixed seat 7 and the sleeve 6 are both covered outside the torsion tube 13. Welding is provided with guard ring 2 on the protection casing 1, and the outside at moment arm 5 is established to 2 covers of guard ring, is provided with the through-hole that makes moment arm 5 pass and communicate with protection casing 1 on the guard ring 2. The shield 1, the guard ring 2 and the sleeve 6 provide protection for the torque tube 13 and the torque arm 5. The fixing seat 7 and the mounting seat 9 fix the electric buoy liquid level meter through a support. A supporting rod 15 is fixedly arranged in the middle of the end head of the buffer regulator 14, a through hole for the supporting rod 15 to pass through is formed in the center of the protective cover 1, and the supporting rod 15 is rotatably connected with the protective cover 1 through a bearing. The support rod 15 has a supporting function for the damper adjuster 14 and the torsion tube 13.
During the use, according to the height of liquid level, the buoyancy of liquid to barrel 3 is different, and the torsional deformation volume that torque tube 13 received is different, and torque tube 13 transmits the moment of torsion for the center tube, and torsional deformation takes place for the center tube to drive reflecting plate 16 and rotate, and the incident light position of laser 11 is unchangeable, because the rotation of reflecting plate 16, has changed the size of incident angle, thereby has changed the position of reflection light irradiation point on photoelectric sensor 12, and photoelectric sensor 12 launches different electrical signals, thereby detects different liquid level values.
Therefore, the electric float liquid level meter measuring device adopting the structure and the electric float liquid level meter with the measuring device can improve the measuring precision and sensitivity of the existing electric float liquid level meter.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (5)
1. An electric float level meter measuring device is characterized in that: the reflection plate mounting device comprises a mounting seat, wherein a mounting groove is formed in one end of the mounting seat, a rotating shaft which is rotatably connected with the mounting seat is arranged on the bottom surface of the mounting groove, the rotating shaft and the mounting seat are coaxially arranged, a clamping groove for mounting a central rod is formed in the center of one end of the rotating shaft, the central rod is fixedly connected with the rotating shaft, and a groove for mounting a reflection plate is formed in the side wall of the rotating shaft; the side wall of the mounting seat is provided with a laser and a photoelectric sensor, and the axis of the laser is intersected with the reflecting plate.
2. An electrical float level gauge measuring device according to claim 1, characterized in that: the end of the rotating shaft is provided with a connector, and the connector is rotatably connected with a connecting hole arranged at the bottom of the mounting seat through a bearing; the connector is coaxial with the rotating shaft.
3. An electrical float level gauge measuring device according to claim 1, characterized in that: a first mounting plate and a second mounting plate are arranged on the side wall of the mounting seat, and the first mounting plate and the second mounting plate are vertically arranged; the center of first mounting panel is provided with the first mounting hole of fixed laser instrument, and the center of second mounting panel is provided with the second mounting hole of fixed photoelectric sensor.
4. An electrical float level gauge comprising an electrical float level gauge measuring device according to any of claims 1-3, characterized in that: the torsion tube is fixedly connected with one end of the central rod, which is far away from the mounting seat, and the other end of the torsion tube is fixedly connected with the buffer adjuster; a protective cover is arranged outside the buffer regulator, the protective cover is fixedly connected with the fixed seat through a sleeve, the fixed seat and the sleeve are covered outside the torsion tube, and the buffer regulator is rotatably connected with the protective cover; be provided with the guard ring on the guard shield, the guard ring cover is established in the outside of moment arm, is provided with the through-hole that makes the moment arm pass and communicate with the protection casing on the guard ring.
5. An electrical float level gauge according to claim 4, wherein: the middle part of the end head of the buffer regulator is provided with a supporting rod, the center of the protective cover is provided with a through hole for the supporting rod to pass through, and the supporting rod is rotatably connected with the protective cover through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284073.8A CN112857530B (en) | 2021-03-17 | 2021-03-17 | Electric pontoon liquid level meter measuring device and have this measuring device's electric pontoon liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284073.8A CN112857530B (en) | 2021-03-17 | 2021-03-17 | Electric pontoon liquid level meter measuring device and have this measuring device's electric pontoon liquid level meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112857530A true CN112857530A (en) | 2021-05-28 |
| CN112857530B CN112857530B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110284073.8A Active CN112857530B (en) | 2021-03-17 | 2021-03-17 | Electric pontoon liquid level meter measuring device and have this measuring device's electric pontoon liquid level meter |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB780849A (en) * | 1953-02-12 | 1957-08-07 | Ruhrchemie Ag | Methods of and apparatus for measuring liquid levels, and indicating them at a distance |
| CH647320A5 (en) * | 1982-04-02 | 1985-01-15 | Cortaillod Cables Sa | Optical assembly for liq. level signalling in reservoir - uses optical fibre to direct light onto ball in sensor mounted on float arm |
| CN102288261A (en) * | 2011-07-19 | 2011-12-21 | 赵恩国 | Floating pontoon type fiber liquid level meter |
| JP2012127878A (en) * | 2010-12-16 | 2012-07-05 | Chugoku Electric Power Co Inc:The | Liquid level displacement detection system and liquid level displacement detection method |
| CN103278214A (en) * | 2013-05-29 | 2013-09-04 | 西北大学 | Polarization maintaining optical fiber Bragg grating liquid level sensor |
| CN103852139A (en) * | 2012-12-04 | 2014-06-11 | 武隆县驰锐轮胎销售部 | Automobile oil quantity photoelectric accurate sensing and measuring device |
| JP2014132223A (en) * | 2013-01-04 | 2014-07-17 | Hiroshi Makita | Optical liquid level sensor |
| JP2014188773A (en) * | 2013-03-27 | 2014-10-06 | Kodenshi Corp | Ink cartridge |
| CN205131600U (en) * | 2015-11-30 | 2016-04-06 | 贺金桃 | Water survival device |
| CN206321309U (en) * | 2017-01-10 | 2017-07-11 | 承德石油高等专科学校 | A kind of buffer adjuster and its electric float level meter comprising the buffer adjuster |
| RU178306U1 (en) * | 2016-10-12 | 2018-03-29 | Альберт Галиуллович Абдуллин | LASER LIQUID LEVEL METER |
| CN207649724U (en) * | 2017-12-26 | 2018-07-24 | 青岛中威立源环保科技有限公司 | A kind of height-adjustable ultrasonic level gage |
| CN210321877U (en) * | 2019-08-12 | 2020-04-14 | 天津鑫源鑫伟科技有限公司 | Float type LED liquid level meter |
| CN211234385U (en) * | 2020-02-18 | 2020-08-11 | 上海应用技术大学 | Infrared static force leveling system |
| CN112345037A (en) * | 2020-11-25 | 2021-02-09 | 陕西航宇星测科技有限公司 | Multifunctional magnetic controller for liquid level counting data display |
| CN214309034U (en) * | 2021-03-17 | 2021-09-28 | 承德热河克罗尼仪表有限公司 | Electric float level meter measuring device and electric float level meter |
-
2021
- 2021-03-17 CN CN202110284073.8A patent/CN112857530B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB780849A (en) * | 1953-02-12 | 1957-08-07 | Ruhrchemie Ag | Methods of and apparatus for measuring liquid levels, and indicating them at a distance |
| CH647320A5 (en) * | 1982-04-02 | 1985-01-15 | Cortaillod Cables Sa | Optical assembly for liq. level signalling in reservoir - uses optical fibre to direct light onto ball in sensor mounted on float arm |
| JP2012127878A (en) * | 2010-12-16 | 2012-07-05 | Chugoku Electric Power Co Inc:The | Liquid level displacement detection system and liquid level displacement detection method |
| CN102288261A (en) * | 2011-07-19 | 2011-12-21 | 赵恩国 | Floating pontoon type fiber liquid level meter |
| CN103852139A (en) * | 2012-12-04 | 2014-06-11 | 武隆县驰锐轮胎销售部 | Automobile oil quantity photoelectric accurate sensing and measuring device |
| JP2014132223A (en) * | 2013-01-04 | 2014-07-17 | Hiroshi Makita | Optical liquid level sensor |
| JP2014188773A (en) * | 2013-03-27 | 2014-10-06 | Kodenshi Corp | Ink cartridge |
| CN103278214A (en) * | 2013-05-29 | 2013-09-04 | 西北大学 | Polarization maintaining optical fiber Bragg grating liquid level sensor |
| CN205131600U (en) * | 2015-11-30 | 2016-04-06 | 贺金桃 | Water survival device |
| RU178306U1 (en) * | 2016-10-12 | 2018-03-29 | Альберт Галиуллович Абдуллин | LASER LIQUID LEVEL METER |
| CN206321309U (en) * | 2017-01-10 | 2017-07-11 | 承德石油高等专科学校 | A kind of buffer adjuster and its electric float level meter comprising the buffer adjuster |
| CN207649724U (en) * | 2017-12-26 | 2018-07-24 | 青岛中威立源环保科技有限公司 | A kind of height-adjustable ultrasonic level gage |
| CN210321877U (en) * | 2019-08-12 | 2020-04-14 | 天津鑫源鑫伟科技有限公司 | Float type LED liquid level meter |
| CN211234385U (en) * | 2020-02-18 | 2020-08-11 | 上海应用技术大学 | Infrared static force leveling system |
| CN112345037A (en) * | 2020-11-25 | 2021-02-09 | 陕西航宇星测科技有限公司 | Multifunctional magnetic controller for liquid level counting data display |
| CN214309034U (en) * | 2021-03-17 | 2021-09-28 | 承德热河克罗尼仪表有限公司 | Electric float level meter measuring device and electric float level meter |
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|---|---|
| CN112857530B (en) | 2024-06-18 |
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