CN116007713B - Automatic detection and correction magnetic flap level gauge for low-temperature environment - Google Patents

Automatic detection and correction magnetic flap level gauge for low-temperature environment Download PDF

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Publication number
CN116007713B
CN116007713B CN202310016879.8A CN202310016879A CN116007713B CN 116007713 B CN116007713 B CN 116007713B CN 202310016879 A CN202310016879 A CN 202310016879A CN 116007713 B CN116007713 B CN 116007713B
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China
Prior art keywords
rope winding
rope
winding wheel
level meter
fixed
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CN202310016879.8A
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CN116007713A (en
Inventor
高伟伟
韩利鹏
高彬彬
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Henan Yongchuang Automation Control Technology Co ltd
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Henan Yongchuang Automation Control Technology Co ltd
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Priority to CN202310016879.8A priority Critical patent/CN116007713B/en
Priority to ZA2023/02138A priority patent/ZA202302138B/en
Publication of CN116007713A publication Critical patent/CN116007713A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The invention discloses a low-temperature environment automatic detection correction magnetic flap level meter, which comprises a magnetic flap level meter body, wherein the magnetic flap level meter body comprises a main guide pipe, a magnetic floater, a flap box, a magnetic flap, an upper flange, a lower flange, an upper connecting pipe and a lower connecting pipe; a fixed pulley block is arranged below the upper connecting pipe, a rotating shaft is arranged above the lower connecting pipe, and a rope winding pulley group is arranged on the rotating shaft; a walking part is arranged between the fixed pulley block and the rope winding pulley block, and a pointer is arranged in the middle of the transverse shaft of the walking part; the two ends of the transverse shaft are provided with rotating sleeves, the rotating sleeves are provided with ropes, and the other ends of the ropes are wound up on the rope winding wheel sets downwards after upwards bypassing the fixed pulley blocks; the rope winding wheel group winds the rope and drives the travelling part to move upwards when the pointer deflects upwards, the rope winding wheel group releases the rope and drives the travelling part to move downwards when the pointer deflects downwards, and the pointer horizontal rope winding wheel group is fixed; the invention solves the problem that the magnetic flap liquid level meter can not reliably run when being used in a low-temperature environment.

Description

Automatic detection and correction magnetic flap level gauge for low-temperature environment
Technical Field
The invention belongs to the technical field of magnetic flap level meters, and particularly relates to a magnetic flap level meter capable of automatically detecting and correcting a low-temperature environment.
Background
When the magnetic flap liquid level meter is used in a low-temperature environment, the phenomenon that liquid is frozen in the main guide pipe can be possibly caused, so that the normal up-and-down movement of the magnetic floater is influenced, and inaccurate reading is caused; water vapor also exists in the panel turnover box, and frosting is easy to occur under a low-temperature environment, so that the turnover of the magnetic panel turnover is blocked, or the indication observation is unclear due to fog; if the magnetic floater moves up and down normally, the overturning of the local magnetic turnover plate is blocked, so that the indication failure of the magnetic turnover plate liquid level meter can be caused, the phenomenon of mixing of the white magnetic turnover plate and the red magnetic turnover plate is also needed to be corrected manually through the hand-held correction magnetic steel; if the overturning and observation indication of the magnetic turning plate are normal and the movement of the magnetic floater is blocked, workers can be misled to be difficult to find that the magnetic floater is frozen nearby, excessive ice is frozen, ice is removed by disassembling the liquid level meter, a large amount of manpower and material resources are consumed, and the calibration detection efficiency is lowered.
Liquid carbon dioxide is generally stored in a high-pressure low-temperature storage tank, the pressure in the storage tank is reduced due to the fact that liquid carbon dioxide is discharged, a part of liquid carbon dioxide is evaporated, a large amount of heat is absorbed, another part of carbon dioxide is cooled into snowflake-shaped solid, a magnetic floater of the liquid carbon dioxide is discharged and moves up and down along with the liquid level, the snowflake-shaped solid carbon dioxide can influence the up and down movement of the magnetic floater, the snowflake-shaped solid carbon dioxide is required to be heated around the magnetic floater in a small range to be liquefied, an insulation layer of the conventional magnetic flap liquid level meter generally covers the whole liquid level meter, the liquid carbon dioxide and the snowflake-shaped solid carbon dioxide cannot be heated along with the movement of the magnetic floater in a small range, the heating or insulation range is too large, the liquid carbon dioxide and the snowflake-shaped solid carbon dioxide can absorb too much heat to be vaporized, the storage of the liquid carbon dioxide is not facilitated, and the normal use of the magnetic flap liquid level meter is also affected.
Disclosure of Invention
The invention aims at: in order to solve the problem that the magnetic flap liquid level meter can not reliably operate in a low-temperature environment, the magnetic flap liquid level meter is automatically detected and corrected in the low-temperature environment.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the magnetic flap liquid level meter comprises a main conduit, a magnetic floater, a flap box, a magnetic flap, an upper flange, a lower flange, an upper connecting pipe and a lower connecting pipe; a fixed pulley block fixed on the main guide pipe is arranged below the upper connecting pipe, a rotating shaft is arranged above the lower connecting pipe, and a rope winding pulley group is arranged on the rotating shaft; a walking part which moves up and down along the main guide pipe is arranged between the fixed pulley group and the rope winding pulley group, the walking part comprises a transverse shaft, and a pointer is rotationally connected in the middle of the transverse shaft; the two ends of the transverse shaft are both rotationally connected with a rotating sleeve, a rope is fixed on the rotating sleeve, and the other end of the rope upwards bypasses the fixed pulley block and then is downwards wound on the rope winding wheel set; the rope winding wheel group winds the rope and drives the travelling part to move upwards when the pointer deflects upwards, the rope winding wheel group releases the rope and drives the travelling part to move downwards when the pointer deflects downwards, and the pointer horizontal rope winding wheel group is fixed; the transverse shaft is fixedly provided with a heating wire surrounding the magnetic flap liquid level meter body, and the magnetic flap liquid level meter body is fixedly provided with a heat preservation layer wrapping the heating wire and the travelling part.
As a further description of the above technical solution:
the fixed pulley block consists of a fixed shaft and a pulley, the fixed shaft is horizontally arranged at the rear side of the main conduit in the left-right direction, and the horizontal distance between the fixed shaft and the main conduit is smaller than that between the transverse shaft and the main conduit; the left end and the right end of the fixed shaft are both rotationally connected with a pulley, and the two pulleys are bilaterally symmetrical relative to the main guide pipe.
As a further description of the above technical solution:
the rope winding wheel group consists of a rotating shaft and a rope winding wheel group, the rotating shaft is horizontally arranged at the rear side of the main guide pipe along the left-right direction, the left end and the right end of the rotating shaft are both rotationally connected with a rope winding wheel, the pulleys on the same side, the rope winding wheel and the rotating sleeve are positioned in the same vertical plane, one end of a rope on the same side is fixed on the rotating sleeve, and the other end of the rope upwards winds around the pulleys and then downwards winds on the rope winding wheel.
As a further description of the above technical solution:
one end of the rotating shaft is connected with a motor, a motor seat is arranged below the motor, the motor is fixed on the motor seat, and the rotating shaft is driven to rotate through the motor.
As a further description of the above technical solution:
the pointer consists of a circular ring and a needle head, the inner edge surface of the circular ring is provided with two semi-arc-shaped conductive layers which are vertically symmetrical, a gap is reserved between the upper conductive layer and the lower conductive layer and are not communicated with each other, a groove is formed in the transverse shaft, a horizontal conductive sheet is arranged in the groove, and the conductive sheet is connected with the motor through a circuit; the motor is a servo motor, when the pointer deflects upwards, the upper conducting layer is communicated with the conducting strip, and the transmission electric signal controls the motor to rotate forwards to drive the rope winding wheel set to wind the rope and drive the travelling part to move upwards; when the pointer deflects downwards, the conductive layer below is communicated with the conductive sheet, and the transmission electric signal controls the motor to rotate reversely, and the rope winding wheel group releases the rope and drives the travelling part to move downwards; when the pointer is horizontal, the conducting strip is arranged between the upper conducting layer and the lower conducting layer and is not communicated with the conducting layer, the motor is not started, and the rope winding wheel set is fixed.
As a further description of the above technical solution:
the walking part consists of a transverse shaft, large rollers, small rollers and a connecting frame, the transverse shaft is rotationally connected with the large rollers which are respectively arranged at the left side and the right side of the pointer, the connecting frame is a U-shaped rod which consists of a middle round rod and connecting rods at the two ends, the connecting rod end head at the opening end of the connecting rod is fixed on the transverse shaft, and the middle round rod is rotationally connected with the two small rollers which are bilaterally symmetrical.
As a further description of the above technical solution:
when the large roller and the small roller are contacted with the main guide pipe, the heating wire is in a horizontal position.
As a further description of the above technical solution:
the cross section of the heat preservation layer is U-shaped, and the left end and the right end of the front end opening of the heat preservation layer are respectively fixed on the left side and the right side of the flap box.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
(1) When the magnetic flap liquid level meter is used in a low-temperature environment, the magnetic floats move up and down due to the rising and falling of the liquid level, the heating wire is driven by the running part to move along with the movement of the liquid level automatically, the magnetic floats and the periphery of the magnetic flap corresponding to the liquid level are heated all the time, the smooth movement of the magnetic floats is ensured, the smooth turnover of the magnetic flap is ensured, the normal use of the magnetic flap liquid level meter in the low-temperature environment is ensured, and the indication misalignment of the magnetic flap liquid level meter caused by the blocking of the movement of the magnetic floats or the blocking of the turnover of the magnetic flap is avoided.
(2) The magnetic flap liquid level meter is not affected by frost when being used in a low-temperature environment, so that the magnetic flap liquid level meter is reliable in operation, sensitive in response, capable of automatically defrosting, demisting and deicing, free of manual defrosting, deicing and demisting operation and free of manual correction.
(3) The heating wire is horizontally arranged and can move along with the magnetic floater to heat in a small range, snowflake solid carbon dioxide is prevented from being separated out around the magnetic floater in the use of liquid carbon dioxide and other liquids, and the liquid level display device is suitable for liquid level display of a storage tank of liquid which cannot be heated in a large range.
Drawings
FIG. 1 is a schematic perspective view of the rear side view of the present invention with the insulation layer 14 removed;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view of part of B in FIG. 4;
FIG. 6 is an enlarged view of part of C in FIG. 5;
fig. 7 is a schematic perspective view of the pulley 16 set;
FIG. 8 is a schematic perspective view of a detection and correction device;
fig. 9 is a schematic perspective view of the heating wire 13 and the travelling device;
fig. 10 is a schematic perspective view of a pointer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the invention provides a technical scheme for automatically detecting and correcting a magnetic flap level gauge in a low-temperature environment, which comprises the following steps:
the automatic detection and correction magnetic flap level gauge for the low-temperature environment comprises a magnetic flap level gauge body, wherein the magnetic flap level gauge body comprises a main guide pipe 1, a magnetic floater 2, a flap box 3, a magnetic flap 4, an upper flange 5, a lower flange 6, an upper connecting pipe 7 and a lower connecting pipe 8; a fixed pulley block fixed on the main conduit 1 is arranged below the upper connecting pipe 7, a rotating shaft 9 is arranged above the lower connecting pipe 8, and a rope winding pulley group is arranged on the rotating shaft 9; a walking part which moves up and down along the main guide pipe 1 is arranged between the fixed pulley group and the rope winding pulley group, the walking part comprises a transverse shaft 10, and a pointer is rotationally connected between the transverse shaft 10; the two ends of the transverse shaft 10 are both rotatably connected with a rotating sleeve 11, a rope 12 is fixed on the rotating sleeve 11, and the other end of the rope 12 winds up around the fixed pulley block and then is wound up on the rope winding wheel set; the rope winding wheel group winds the rope 12 and drives the travelling part to move upwards when the pointer deflects upwards, and releases the rope 12 and drives the travelling part to move downwards when the pointer deflects downwards, and the pointer horizontal rope winding wheel group is fixed; the transverse shaft 10 is fixedly provided with a heating wire 13 surrounding the magnetic flap liquid level meter body, and the magnetic flap liquid level meter body is fixedly provided with a heat preservation layer 14 wrapping the heating wire 13 and the travelling part.
The fixed pulley block consists of a fixed shaft 15 and a pulley 16, the fixed shaft 15 is horizontally arranged at the rear side of the main guide pipe 1 along the left-right direction, and the horizontal distance between the fixed shaft 15 and the main guide pipe 1 is smaller than that between the transverse shaft 10 and the main guide pipe 1; the left and right ends of the fixed shaft 15 are both rotatably connected with a pulley 16, and the two pulleys 16 are bilaterally symmetrical with respect to the main conduit 1.
The rope winding wheel group consists of a rotating shaft 9 and rope winding wheels 17, the rotating shaft 9 is horizontally arranged at the rear side of the main guide pipe 1 along the left-right direction, the left end and the right end of the rotating shaft 9 are both rotationally connected with one rope winding wheel 17, the pulleys 16 on the same side, the rope winding wheels 17 and the rotating sleeve 11 are positioned in the same vertical plane, one end of a rope 12 on the same side is fixed on the rotating sleeve 11, and the other end of the rope 12 upwards bypasses the pulleys 16 and then downwards winds on the rope winding wheels 17.
One end of the rotating shaft 9 is connected with a motor 18, a motor seat 19 is arranged below the motor 18, the motor 18 is fixed on the motor seat 19, and the rotating shaft 9 is driven to rotate through the motor 18.
The pointer consists of a circular ring 20 and a needle head 21, wherein the inner edge surface of the circular ring 20 is provided with two semi-arc-shaped conductive layers 22 which are vertically symmetrical, a gap is reserved between the upper conductive layer 22 and the lower conductive layer 22 and are not communicated with each other, a groove 23 is formed in the transverse shaft 10, a horizontal conductive sheet 24 is arranged in the groove 23, and the conductive sheet 24 is connected with the motor 18 through a circuit; the motor 18 is a servo motor, when the pointer deflects upwards, the upper conducting layer 22 is communicated with the conducting strip 24, and the transmission electric signal controls the motor 18 to rotate forwards to drive the rope winding wheel set to wind the rope 12 and drive the travelling part to move upwards; when the pointer deflects downwards, the lower conductive layer 22 is communicated with the conductive sheet 24, the transmission electric signal controls the motor 18 to rotate reversely, and the rope winding wheel group releases the rope 12 and drives the travelling part to move downwards; when the pointer is level, the conductive sheet 24 is placed between the upper and lower conductive layers 22 and is not communicated with the conductive layers 22, the motor 18 is not started, and the rope winding wheel set is fixed.
The walking part consists of a transverse shaft 10, a large roller 25, a small roller 26 and a connecting frame, wherein the transverse shaft 10 is rotationally connected with the large roller 25 which is respectively arranged at the left side and the right side of the pointer, the connecting frame is a U-shaped rod consisting of a middle round rod 27 and connecting rods 28 at the two ends, the end head of the connecting rod 28 at the open end is fixed on the transverse shaft 10, and the middle round rod 27 is rotationally connected with the two small rollers 26 which are bilaterally symmetrical.
When the large roller 25 and the small roller 26 are in contact with the main guide pipe 1, the heating wire 13 is in a horizontal position.
The cross section of the heat preservation layer 14 is U-shaped, and the left and right ends of the front end opening of the heat preservation layer are respectively fixed on the left and right sides of the flap box 3.
Working principle:
when the walking part is used for the first time, the walking part is required to be arranged at the upper end of the rear side of the main conduit 1, the pointer position is higher than the magnetic floater 2, and because the horizontal distance between the fixed shaft 15 and the main conduit 1 is smaller than the horizontal distance between the transverse shaft 10 and the main conduit 1, the walking part is always clung to the main conduit 1 under the action of the component force of gravity, and the heating wire 13 is positioned at the horizontal position and is continuously electrified for heating.
When the magnetic floater 2 in the main conduit 1 is arranged below the pointer and the distance is far, the pointer is not influenced by the magnetic force of the magnetic floater 2, the pointer enables the needle head 21 to vertically downwards under the action of gravity, the conductive layer 22 below the pointer is communicated with the conductive sheet 24 at the moment, the transmission electric signal controls the motor 18 to reversely rotate, and the rope 12 is released by the rope winding wheel group and drives the travelling part to downwards move; the pointer gradually approaches the magnetic floater 2 and enters the magnetic force range of the magnetic floater 2, the needle 21 rotates under the action of the magnetic force of the magnetic floater 2 and points to the magnetic floater 2 until the needle 21 rotates to a horizontal position, the conducting sheet 24 is arranged between the upper conducting layer 22 and the lower conducting layer 22 and is not communicated with the conducting layer 22, the motor 18 stops rotating, and the rope winding wheel set is fixed; the heating wire 13 is positioned at the horizontal position and continuously electrified to heat and deice the area near the magnetic floater 2, so that the magnetic floater 2 is prevented from being affected by local icing and not smoothly moved up and down, meanwhile, the periphery of the magnetic turning plate 4 horizontally corresponding to the magnetic floater 2 is heated, defrosted and defogged, the magnetic turning plate 4 near the liquid level is prevented from being affected by cold frost and not smoothly reversed, and mist is prevented from interfering with the observation of the liquid level meter.
As the liquid level rises and falls, the magnetic floater 2 in the main guide pipe 1 moves up and down, when the magnetic floater 2 moves up and the pointer deflects up, the upper conductive layer 22 is communicated with the conductive sheet 24, and the transmission electric signal controls the motor 18 to rotate forward to drive the rope winding wheel group to wind the rope 12 and drive the travelling part to move up; when the magnetic floater 2 moves downwards and the pointer deflects downwards, the lower conductive layer 22 is communicated with the conductive sheet 24, the transmission electric signal controls the motor 18 to rotate reversely, and the rope winding wheel group releases the rope 12 and drives the travelling part to move downwards; when the pointer is horizontal, the conducting strip 24 is arranged between the upper conducting layer 22 and the lower conducting layer 22 and is not communicated with the conducting layer 22, the motor 18 is not started, and the rope winding wheel group is fixed; therefore, when the liquid level rises and falls to cause the magnetic floater 2 to move up and down, the heating wire is driven by the walking part to automatically move along with the movement of the liquid level, the magnetic floater 2 and the periphery of the magnetic turning plate 4 corresponding to the liquid level are heated all the time, the magnetic floater 2 is ensured to move smoothly, the magnetic turning plate 4 is ensured to turn over smoothly, the normal use and reliable operation of the magnetic turning plate liquid level meter in a low-temperature environment are ensured, and the indication misalignment of the magnetic turning plate liquid level meter caused by the blockage of the movement of the magnetic floater 2 or the blockage of the turning of the magnetic turning plate 4 is avoided; when the magnetic flap level gauge is used in a low-temperature environment, defrosting, deicing and demisting are not needed to be carried out manually, and correction is not needed to be carried out manually.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should appreciate that the technical scheme and the inventive concept according to the present invention are equivalent or changed within the scope of the present invention.

Claims (7)

1. The automatic detection and correction magnetic flap level meter for the low-temperature environment is characterized by comprising a magnetic flap level meter body, wherein the magnetic flap level meter body comprises a main guide pipe (1), a magnetic floater (2), a flap box (3), a magnetic flap (4), an upper flange (5), a lower flange (6), an upper connecting pipe (7) and a lower connecting pipe (8); a fixed pulley block fixed on the main conduit (1) is arranged below the upper connecting pipe (7), a rotating shaft (9) is arranged above the lower connecting pipe (8), and a rope winding pulley group is arranged on the rotating shaft (9); a walking part which moves up and down along the main guide pipe (1) is arranged between the fixed pulley block and the rope winding pulley block, the walking part consists of a transverse shaft (10), a large roller (25), a small roller (26) and a connecting frame, and a pointer is rotationally connected in the middle of the transverse shaft (10); the transverse shaft (10) is rotationally connected with large rollers (25) respectively arranged at the left side and the right side of the pointer, the connecting frame is a U-shaped rod consisting of a middle round rod (27) and connecting rods (28) at the two ends, the end heads of the connecting rods (28) at the open ends of the connecting rods are fixed on the transverse shaft (10), and the middle round rod (27) is rotationally connected with two small rollers (26) which are bilaterally symmetrical; two ends of the transverse shaft (10) are rotatably connected with a rotating sleeve (11), a rope (12) is fixed on the rotating sleeve (11), and the other end of the rope (12) winds up around the fixed pulley block and then is wound up on the rope winding wheel set; the rope winding wheel group winds the rope (12) and drives the travelling part to move upwards when the pointer deflects upwards, the rope winding wheel group releases the rope (12) and drives the travelling part to move downwards when the pointer deflects downwards, and the pointer horizontal rope winding wheel group is fixed; the transverse shaft (10) is fixedly provided with a heating wire (13) surrounding the magnetic flap liquid level meter body, and the magnetic flap liquid level meter body is fixedly provided with a heat preservation layer (14) wrapping the heating wire (13) and the travelling part.
2. The automatic detection and correction magnetic flap level meter for the low-temperature environment according to claim 1 is characterized in that the fixed pulley block consists of a fixed shaft (15) and a pulley (16), the fixed shaft (15) is horizontally arranged at the rear side of the main conduit (1) along the left-right direction, and the horizontal distance between the fixed shaft (15) and the main conduit (1) is smaller than the horizontal distance between the transverse shaft (10) and the main conduit (1); the left end and the right end of the fixed shaft (15) are both rotationally connected with a pulley (16), and the two pulleys (16) are bilaterally symmetrical relative to the main guide pipe (1).
3. The automatic detection and correction magnetic flap level meter for the low-temperature environment according to claim 2 is characterized in that the rope winding wheel group consists of a rotating shaft (9) and a rope winding wheel (17), the rotating shaft (9) is horizontally arranged at the rear side of the main guide pipe (1) along the left-right direction, the rope winding wheel (17) is rotatably connected to the left end and the right end of the rotating shaft (9), the pulleys (16) on the same side, the rope winding wheel (17) and the rotating sleeve (11) are positioned in the same vertical plane, one end of a rope (12) on the same side is fixed on the rotating sleeve (11), and the other end of the rope is wound on the rope winding wheel (17) downwards after bypassing the pulleys (16) upwards.
4. The automatic detection and correction magnetic flap level meter for the low-temperature environment according to claim 3 is characterized in that one end of the rotating shaft (9) is connected with a motor (18), a motor base (19) is arranged below the motor (18), the motor (18) is fixed on the motor base (19), and the rotating shaft (9) is driven to rotate through the motor (18).
5. The automatic detection and correction magnetic flap level meter of claim 4, characterized in that the pointer consists of a circular ring (20) and a needle head (21), the inner edge surface of the circular ring (20) is provided with two semi-arc conductive layers (22) which are vertically symmetrical, a gap is reserved between the upper conductive layer and the lower conductive layer (22) and are not conductive with each other, a groove (23) is formed on the transverse shaft (10), a horizontal conductive sheet (24) is arranged in the groove (23), and the conductive sheet (24) is connected with the motor (18) through a circuit; the motor (18) is a servo motor, when the pointer deflects upwards, the upper conducting layer (22) is communicated with the conducting strip (24), and the transmission electric signal controls the motor (18) to rotate forwards to drive the rope winding wheel group to wind the rope (12) and drive the travelling part to move upwards; when the pointer deflects downwards, the lower conductive layer (22) is communicated with the conductive sheet (24), the transmission electric signal controls the motor (18) to rotate reversely, and the rope winding wheel group releases the rope (12) and drives the travelling part to move downwards; when the pointer is horizontal, the conducting strip (24) is arranged between the upper conducting layer (22) and the lower conducting layer (22) and is not communicated with the conducting layer (22), the motor (18) is not started, and the rope winding wheel group is fixed.
6. The automatic detection and correction magnetic flap level meter for low-temperature environment according to claim 1 is characterized in that the heating wire (13) is in a horizontal position when the large roller (25) and the small roller (26) are in contact with the main guide pipe (1).
7. The automatic detection and correction magnetic flap level meter for low-temperature environment according to claim 1, wherein the cross section of the heat preservation layer (14) is U-shaped, and the left and right ends of the front end opening of the heat preservation layer are respectively fixed at the left and right sides of the flap box (3).
CN202310016879.8A 2023-01-06 2023-01-06 Automatic detection and correction magnetic flap level gauge for low-temperature environment Active CN116007713B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202310016879.8A CN116007713B (en) 2023-01-06 2023-01-06 Automatic detection and correction magnetic flap level gauge for low-temperature environment
ZA2023/02138A ZA202302138B (en) 2023-01-06 2023-02-21 A magnetic flap level gauge with automatic detection and correction in low temperature environment

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Application Number Priority Date Filing Date Title
CN202310016879.8A CN116007713B (en) 2023-01-06 2023-01-06 Automatic detection and correction magnetic flap level gauge for low-temperature environment

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CN116007713B true CN116007713B (en) 2023-10-17

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CN109489774A (en) * 2018-11-13 2019-03-19 洛阳理工学院 A kind of magnetic double level gauge Fast simulation display alternative
CN109990871A (en) * 2019-04-25 2019-07-09 中冶焦耐(大连)工程技术有限公司 A kind of asphalt reservior lever buoy level meter
CN211954352U (en) * 2020-04-30 2020-11-17 南京沃斯特智控科技有限公司 Self-heating liquid level meter
KR20200133446A (en) * 2019-05-20 2020-11-30 한국항공우주연구원 Level sensing apparatus
CN214309043U (en) * 2020-12-02 2021-09-28 江苏新晖测控科技有限公司 Prevent into water magnetism and turn over board level gauge
CN216815689U (en) * 2021-12-02 2022-06-24 常州市科佳仪表有限公司 Magnetic float level meter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3379211B1 (en) * 2015-11-18 2020-07-29 Dalian Jiaxin Electromechanical Instrument. Co. Ltd. Ball float type liquidometer with moving indicator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109489774A (en) * 2018-11-13 2019-03-19 洛阳理工学院 A kind of magnetic double level gauge Fast simulation display alternative
CN109990871A (en) * 2019-04-25 2019-07-09 中冶焦耐(大连)工程技术有限公司 A kind of asphalt reservior lever buoy level meter
KR20200133446A (en) * 2019-05-20 2020-11-30 한국항공우주연구원 Level sensing apparatus
CN211954352U (en) * 2020-04-30 2020-11-17 南京沃斯特智控科技有限公司 Self-heating liquid level meter
CN214309043U (en) * 2020-12-02 2021-09-28 江苏新晖测控科技有限公司 Prevent into water magnetism and turn over board level gauge
CN216815689U (en) * 2021-12-02 2022-06-24 常州市科佳仪表有限公司 Magnetic float level meter

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