CN110806248A - But positive reading formula intelligence teletransmission warning buoy level gauge - Google Patents
But positive reading formula intelligence teletransmission warning buoy level gauge Download PDFInfo
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- CN110806248A CN110806248A CN202010019724.6A CN202010019724A CN110806248A CN 110806248 A CN110806248 A CN 110806248A CN 202010019724 A CN202010019724 A CN 202010019724A CN 110806248 A CN110806248 A CN 110806248A
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- liquid level
- level gauge
- floating ball
- magnetic induction
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- 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
- G01F23/40—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 bands or wires as transmission elements
- G01F23/46—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 bands or wires as transmission elements using magnetically actuated indicating means
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention relates to a forward reading type intelligent remote alarm buoy liquid level meter which is used for measuring liquid in a tank body and is characterized by comprising an inner floating ball positioned in the tank body, wherein an up-and-down moving guide mechanism is arranged between the inner floating ball and the tank body; the synchronous movement linkage mechanism is arranged between the magnetic induction magnetic floating ball and the inner floating ball, the problem that the traditional buoy liquid level meter is inconvenient to measure in a reverse reading mode is solved, the pulley installation shell, the tank body and the metering tube are connected in a sealing mode, and the problem that combustible and explosive gas is easily leaked due to incomplete sealing to cause potential safety hazards is solved.
Description
Technical Field
The present invention relates to a liquid level meter.
Background
At present, for some large vertical storage tanks, the volume and the quality of the liquid in the storage tank are measured by a liquid level meter for more convenient statistics and measurement. However, the viscosity of the stored liquid is higher, and compared with a common measuring container, the volume of the vertical storage tank is huge, the design height is usually more than 10 meters, and the observation by a conventional liquid level meter is inconvenient.
Because the viscosity of the measured medium is large, and the fluidity of the medium in winter is poor, the pressure tapping pipe is easy to crystallize or scale to influence the pressure tapping effect, and the differential pressure type liquid level meter can not accurately measure basically.
Conventional magnetic flap level gauges are excluded because of the large range and viscosity, and most of these types of vertical tanks have only a top opening.
Some non-contact measurement level gauges, such as radar level gauges and ultrasonic wave level gauges, can realize the purpose of intelligent teletransmission, but on-the-spot personnel can't make things convenient for accurate real-time observation liquid level, can only see real-time liquid level through climbing to the tank deck or going to control room teletransmission signal receiving terminal, and is very inconvenient.
The float level meter is usually adopted in the wide-range vertical storage tank, is not influenced by viscosity, and can realize field liquid level observation, but the conventional float level meter has a plurality of defects at present, and the specific expression is as follows:
1. most of buoy level gauges mostly adopt reverse reading type scale indication, namely, the actual liquid level rises, the buoy scale indicates downwards, the actual liquid level falls, and the buoy scale points upwards, so that the conventional thinking habit of people is not met very much, and misguidance is easily brought to people. As in chinese patent No. cn201520293837.x, it has the advantage of enabling a positive reading indication of the liquid level. It has the following disadvantages: the inner displacement guide pulley is limited only by a support limiting hole, only the lower half floating ball can be limited, and the problem of floating ball limitation in the whole measuring range cannot be solved. CN201320879883.9, it has the advantage of realizing the liquid level reading display. But has the disadvantages that: 1. the surrounding steel wires are designed in the same conduit, and are easy to cross wind to generate faults. 2. The surrounding steel wires are not well installed. 3. The diameter of the conduit surrounding the steel wire is large, and the whole set of product is heavy and is not beneficial to installation and maintenance.
2. In the prior art, a counterweight heavy hammer of a buoy liquid level meter adopts a heavy hammer pointer type, and because the buoy liquid level metering process is large and a steel wire rope is long, the normal indication of the liquid level can be influenced when the weight of the heavy hammer is too light or too heavy, and the steel wire rope is too loose and easy to knot when the weight of the counterweight heavy hammer is too light; the weight of the counterweight is too heavy, which may directly pull up the large floating ball in the storage tank, resulting in no measurement.
3. The buoy liquid level meter in the prior art mostly adopts steel wire rope leakage and adopts a form of indication by a counter weight pointer, so that a gap is inevitably formed between the steel wire rope and a liquid level meter connecting pipe, the storage tank is inevitably incapable of being completely sealed, some measuring media which are inflammable, explosive or toxic can be scattered into an industrial field along with the gap of the position of the steel wire rope to cause potential safety hazards, meanwhile, along with increasing importance of the country on environmental protection, pollution of some polluting media to the environment is also more and more strict and must be completely sealed, although related patents describe a method for realizing complete sealing, if a method for indicating scales by the counter weight pointer is not changed, complete sealing cannot be realized.
4. The buoy level meter indicating panel of prior art adopts the form that the weight pointer indicates the scale more or the mode that the board panel is turned over in the magnetism that adds of magnetic levitation ball is adopted to few, nevertheless can't accomplish the purpose of clear instruction at night, especially evening, the storage tank range is great, even additional lighting apparatus, also can't compromise whole range scope, also can increase the energy consumption simultaneously.
5. The buoy liquid level meter in the prior art can only display liquid level scales and cannot display volume or quality, and in practice, the purpose of measuring the liquid level most of the time is to obtain the real-time volume or quality of the stored liquid, and the volume or the quality of the liquid in the storage tank is usually calculated by an observer according to the liquid level height, so that the buoy liquid level meter is very inconvenient and is easy to calculate errors.
6. Most of float level meters in the prior art cannot carry out on-site liquid level control and alarm and cannot realize automatic control of liquid level, for example, when the liquid level is lower than a lower limit automatic pump starting or higher than a certain upper limit liquid level, automatic alarm or pump stopping is realized, and the situations of potential safety hazards or raw material waste caused by overflow irrigation are avoided. Even if there is an additional alarm function, there are disadvantages, for example, in patent CN2337540Y, although a magnetically sensitive switch is designed, the magnetically sensitive switch is designed inside the tube body, which is not beneficial to adjusting the control position.
7. The prior art buoy level meter usually does not have the remote transmission output function of analog signals, can only carry out observation on site, and cannot realize remote observation and control.
8. The sealing type direct reading type buoy liquid level meter in the prior art usually arranges a guide steel wire rope and an indication heavy hammer in a liquid level meter pipe cavity, so that the cavity is overlarge in size, heavy and inconvenient to install, high in cost and inconvenient to maintain.
9. The steel wire rope of the buoy liquid level meter in the prior art is exposed in an outdoor environment, is easy to rust, influences the service life, and is easy to be influenced by severe environments such as strong wind and the like to cause the steel wire rope to be dead and knotted.
10. In the prior art, if the medium in the storage tank needs to be judged at night, the storage tank is usually required to be on site to watch the actual liquid level display, which is very inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a positive reading type intelligent remote alarm buoy liquid level meter which is more convenient to read, is beneficial to maintenance, has higher intelligent degree, and is safer and more reliable.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a but alarm buoy level gauge of positive reading formula intelligence teletransmission for measure the internal liquid of jar, including being located the internal interior floater of jar, interior floater with be equipped with guiding mechanism that reciprocates between the jar body, the outside of the jar body is equipped with the metering tube, be equipped with magnetism induction magnetism floater in the metering tube, magnetism induction magnetism floater with be equipped with the synchronous motion link gear between the interior floater, be equipped with magnetism induction LED liquid level scale plate outside the metering tube.
As a preferable technical scheme, the up-down moving guide mechanism comprises guide rings fixedly installed on both sides of the inner floating ball, a vertically extending guide pull rope is arranged between the upper wall and the lower wall of the tank body, and the guide pull rope penetrates through the guide rings.
As a preferred technical scheme, the synchronous movement linkage mechanism comprises a connecting rope connected to the inner ball floating part, a guide wheel is fixedly mounted on the lower wall of the tank body, the connecting rope bypasses the guide wheel to extend upwards, bypasses a first upper guide wheel to be connected to the upper part of the magnetic induction magnetic ball floating ball, and the pulley mounting shell is connected with the tank body and the metering tube in a sealing manner.
According to the preferable technical scheme, a pulley installation shell is arranged between the tank body and the metering tube, the first upper guide wheel is rotatably installed in the pulley installation shell, a second upper guide wheel is further rotatably installed in the pulley installation shell, and the connecting rope is wound through the first upper guide wheel and the second upper guide wheel and then connected to the upper portion of the magnetic induction magnetic floating ball.
As a preferred technical scheme, the weight of the magnetic induction magnetic floating ball can be adjusted.
As the preferred technical scheme, magnetic induction magnetic levitation ball includes the barrel, the upper end of barrel is equipped with the upper cover, the lower extreme of barrel is equipped with the low head, the middle part fixed mounting of barrel has the permanent magnet, set up on the low head with the screw of barrel inner chamber intercommunication, install the shutoff in the screw the plug of screw, process the screw can to the barrel is built-in to fill the counter weight.
As an optimized technical scheme, the magnetic induction LED liquid level scale plate comprises a plate body, a plurality of magnetic induction LED lamp beads are arranged on the plate body, and volume scales and/or quality scales are arranged on the plate body.
As a preferred technical scheme, the liquid level remote transmission device further comprises a dry reed type liquid level remote transmission transmitter attached outside the metering pipe, and a terminal of the dry reed type liquid level remote transmission transmitter is arranged at the lower end of the dry reed type liquid level remote transmission transmitter.
As a preferable technical scheme, the device further comprises an upper limit alarm switch and a lower limit alarm switch, wherein both the upper limit alarm switch and the lower limit alarm switch comprise reed pipes, the upper limit alarm switch and the lower limit alarm switch are respectively movably mounted on the metering pipe, and the upper limit alarm switch and the lower limit alarm switch are respectively and electrically connected with an audible and visual alarm.
As the preferred technical scheme, still include the surveillance camera head to LED liquid level scale plate shooting.
Due to the adoption of the technical scheme, the forward-reading intelligent remote alarm buoy liquid level meter is used for measuring liquid in a tank body and is characterized by comprising an inner floating ball positioned in the tank body, wherein an up-and-down moving guide mechanism is arranged between the inner floating ball and the tank body, a metering tube is arranged outside the tank body, a magnetic induction magnetic floating ball is arranged in the metering tube, a synchronous moving linkage mechanism is arranged between the magnetic induction magnetic floating ball and the inner floating ball, and a magnetic induction LED liquid level scale plate is arranged outside the metering tube; the pulley mounting shell is connected with the tank body and the metering tube in a sealing manner, so that potential safety hazards caused by the fact that flammable and explosive gases are easy to leak due to incomplete sealing are avoided, an LED lamp is arranged to display liquid level scales, the display is clearer and more striking, and the observation at night is also facilitated; the volume or mass scale is added, and the volume or mass of the raw materials of the residual storage tank can be accurately read without conversion; the sound and light alarm device realizes automatic alarm control and can realize high and low liquid level early warning; the dry reed type liquid level remote transmitter is added to realize remote transmission of analog signals; the weight of the magnetic induction magnetic floating ball can be adjusted; the full-sealing structure can realize pressure resistance in the true sense; the monitoring camera is arranged to realize remote monitoring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is an enlarged view of a portion of FIG. 1 at II;
FIG. 4 is an enlarged view of a portion of FIG. 1 at III;
FIG. 5 is a schematic structural diagram of an inner floating ball according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-5, a positive reading type intelligent remote alarm buoy level meter is used for measuring liquid in a tank body 1, and comprises an inner floating ball 2 located in the tank body 1, wherein an up-and-down moving guide mechanism is arranged between the inner floating ball 2 and the tank body 1, a metering tube 3 is arranged outside the tank body 1, a magnetic induction magnetic floating ball is arranged in the metering tube 3, a synchronous moving linkage mechanism is arranged between the magnetic induction magnetic floating ball and the inner floating ball 2, and a magnetic induction LED liquid level scale plate 5 is arranged outside the metering tube 3. The LED lamp is arranged to display liquid level scales, the display is clearer and more striking, the LED liquid level scales can be observed conveniently at night, the magnetic induction LED liquid level scale plate comprises a plate body, a plurality of magnetic induction LED lamp beads 20 are arranged on the plate body, and volume scales and/or quality scales are arranged on the plate body. And the magnetic induction magnetic floating ball and the magnetic induction LED liquid level scale plate are subjected to magnetic coupling red-green display. The prior art discloses a magnetic coupling principle of a magnetic induction magnetic floating ball and a magnetic induction LED liquid level scale plate. The position of the magnetic induction magnetic floating ball with the magnet in the measured medium is influenced by the buoyancy. The change of the liquid level leads to the change of the position of the magnetic induction magnetic floating ball, and the coupling action of the magnetic induction magnetic floating ball and the static magnetic force of the magnetic turning column (also called a magnetic turning plate) leads to the turning of the magnetic turning column by a certain angle (the surface of the magnetic turning column is coated with different colors), thereby reflecting the condition of the liquid level in the container. The electronic module and the transmitter module which are formed by matching a sensor (a magnetic reed switch), a precise electronic component and the like can transmit and output a resistance value signal, a current value (4-20 mA) signal, a switch signal and other electrical signals. The magnetic induction LED lamp bead is a finished product which can be purchased in the prior art.
The magnetic induction magnetic floating ball and the inner floating ball are provided with the synchronous movement linkage mechanism, so that the problem that the traditional buoy liquid level meter is inconvenient to read reversely is solved.
As shown in fig. 4, the up-down movement guide mechanism includes guide rings 6 fixedly installed at both sides of the inner floating ball 2, a guide rope 7 extending vertically is provided between the upper wall and the lower wall of the tank body 1, and the guide rope 7 passes through the guide rings 6.
As shown in fig. 1 and 3, the synchronous movement linkage mechanism includes a connection rope 8 connected to the lower portion of the inner floating ball, guide wheels 9 are fixedly mounted on the lower wall of the tank body 1, in this embodiment, the number of the guide wheels is two, the connection rope sequentially winds the two guide wheels 9, the connection rope winds the guide wheels 9 and extends upwards, the connection rope winds the upper portions of the magnetic induction magnetic floating balls after winding the first upper guide wheels, and the pulley installation shell is connected to the tank body and the metering tube in a sealing manner. The magnetic induction magnetic floating ball and the inner floating ball can move synchronously under the action of the connecting rope and the guide wheel. The full-sealing structure can realize pressure resistance in the true sense;
as shown in fig. 1, a pulley installation shell 11 is arranged between the tank body 1 and the metering tube 3, the first upper guide wheel is rotatably installed in the pulley installation shell 11, the second upper guide wheel is further rotatably installed in the pulley installation shell 11, the connecting rope 8 is wound through the first upper guide wheel and the second upper guide wheel and then connected to the upper portion of the magnetic induction magnetic floating ball, and the pulley installation shell is hermetically connected with the tank body and the metering tube. The first upper guide wheel and the second upper guide wheel are not shown in the figure, the first upper guide wheel and the second upper guide wheel are respectively rotatably installed in the pulley installation shell to play a role in guiding, and the pulley installation shell, the tank body and the metering pipe are in sealing connection, so that potential safety hazards caused by easily leaking flammable and explosive gases due to incomplete sealing are avoided.
As shown in fig. 5, the weight of the magnetic induction magnetic floating ball can be adjusted. Ensuring the tightening of the connecting rope 8.
The magnetic induction magnetic suspension ball comprises a cylinder body 13, an upper end socket 14 is arranged at the upper end of the cylinder body, a lower end socket 15 is arranged at the lower end of the cylinder body, a permanent magnet 16 is fixedly arranged at the middle of the cylinder body, a screw hole communicated with an inner cavity of the cylinder body is formed in the lower end socket, a plug 17 of the screw hole is installed in the screw hole, and the screw hole can be used for filling a balance weight into the cylinder body. The counterweight can adopt counterweight sand. The counterweight sand is filled into the cylinder body through the screw hole.
The permanent magnet is annular, the axis of the permanent magnet 16 is coincident with the axis of the cylinder, a fixing mechanism for fixedly installing the permanent magnet in the cylinder is arranged in the cylinder, the fixing mechanism comprises an upper clamping ring 18 and a lower clamping ring 19 which are fixedly installed on the inner wall of the cylinder, and the axes of the upper clamping ring and the lower clamping ring are coincident with the axis of the cylinder.
As shown in fig. 2, the liquid level meter further comprises a dry reed type liquid level remote transmitter 24 attached outside the metering tube, and a terminal 23 of the dry reed type liquid level remote transmitter is arranged at the lower end of the dry reed type liquid level remote transmitter. The dry reed type liquid level remote transmitter can realize remote transmission of analog signals.
As shown in fig. 2, the alarm device further comprises an upper limit alarm switch and a lower limit alarm switch 22, wherein both the upper limit alarm switch and the lower limit alarm switch comprise reed pipes, the upper limit alarm switch and the lower limit alarm switch are respectively movably mounted on the metering pipe 3, and the upper limit alarm switch and the lower limit alarm switch are respectively and electrically connected with an audible and visual alarm. The sound and light alarm device realizes automatic alarm control and can realize high and low liquid level early warning.
As shown in fig. 1, the liquid level control system further comprises a monitoring camera 21 for shooting the LED liquid level scale plate. The monitoring camera is arranged to realize remote monitoring.
The plate body is provided with volume scales and/or mass scales, and the volume scales or the mass scales can accurately read the volume or the mass of the raw materials of the residual storage tank without conversion.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a but alarm buoy level gauge of positive reading formula intelligence teletransmission for measure the internal liquid of jar, its characterized in that, including being located the internal interior floater of jar, interior floater with be equipped with between the jar body and reciprocate guiding mechanism, the outside of jar body is equipped with the metering tube, be equipped with magnetism induction magnetism floater in the metering tube, magnetism induction magnetism floater with be equipped with synchronous motion link gear between the interior floater, be equipped with magnetism induction LED liquid level scale plate outside the metering tube.
2. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the up-down moving guide mechanism comprises guide rings fixedly arranged on two sides of the inner floating ball, a vertically extending guide pull rope is arranged between the upper wall and the lower wall of the tank body, and the guide pull rope penetrates through the guide rings.
3. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the synchronous movement linkage mechanism comprises a connecting rope connected with the inner floating ball part, a guide wheel is fixedly installed on the lower wall of the tank body, the connecting rope bypasses the guide wheel to extend upwards, and the connecting rope bypasses a first upper guide wheel to be connected to the upper part of the magnetic induction magnetic floating ball.
4. The positive reading intelligent remote alarm buoy level gauge as claimed in claim 3, wherein: the jar body with be equipped with pulley installation shell between the metering tube, first last leading wheel rotates to be installed in the pulley installation shell, still rotate in the pulley installation shell and install the leading wheel on the second, connect the rope around the warp first last leading wheel and second are gone up the leading wheel back and are connected the upper portion of magnetism floater of magnetic induction, the pulley installation shell with jar body and sealing connection between the metering tube.
5. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the weight of the magnetic induction magnetic floating ball is adjustable.
6. The positive reading intelligent remote alarm buoy level gauge as claimed in claim 5, wherein: the magnetic induction magnetic suspension ball comprises a barrel body, an upper end socket is arranged at the upper end of the barrel body, a lower end socket is arranged at the lower end of the barrel body, a permanent magnet is fixedly arranged at the middle part of the barrel body, a screw hole communicated with the inner cavity of the barrel body is formed in the lower end socket, a plug for plugging the screw hole is arranged in the screw hole, and a balance weight can be filled in the barrel body through the screw hole.
7. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the magnetic induction LED liquid level scale plate comprises a plate body, a plurality of magnetic induction LED lamp beads are arranged on the plate body, and volume scales and/or quality scales are arranged on the plate body.
8. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the dry reed type liquid level remote transmitter is attached to the outside of the metering pipe, and a wiring terminal of the dry reed type liquid level remote transmitter is arranged at the lower end of the dry reed type liquid level remote transmitter.
9. The forward reading intelligent remote alarm buoy level gauge as claimed in claim 1, wherein: the upper limit alarm switch and the lower limit alarm switch comprise reed pipes, the upper limit alarm switch and the lower limit alarm switch are movably mounted on the metering pipe respectively, and the upper limit alarm switch and the lower limit alarm switch are electrically connected with an audible and visual alarm respectively.
10. The forward reading intelligent remote alarm buoy level gauge as claimed in any one of claims 1 to 9, wherein: still include the surveillance camera head of shooing the LED liquid level scale plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010019724.6A CN110806248B (en) | 2020-01-09 | 2020-01-09 | But positive reading formula intelligence teletransmission warning buoy level gauge |
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| CN202010019724.6A CN110806248B (en) | 2020-01-09 | 2020-01-09 | But positive reading formula intelligence teletransmission warning buoy level gauge |
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| CN110806248A true CN110806248A (en) | 2020-02-18 |
| CN110806248B CN110806248B (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031811A (en) * | 2022-08-10 | 2022-09-09 | 常州市金马高分子材料有限公司 | Liquid level measuring device and method for production of ETFE colored particles |
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| JPS62251622A (en) * | 1986-04-25 | 1987-11-02 | Toshiba Corp | Liquid level detector for high hydraulic pressure circuit |
| CN202754353U (en) * | 2012-09-04 | 2013-02-27 | 如皋市双马化工有限公司 | Storage tank liquid level measurement device |
| CN103411650A (en) * | 2013-08-23 | 2013-11-27 | 合肥艾普拉斯环保科技有限公司 | Anti-blocking device for magnetic turning plate liquid level meter |
| CN205027418U (en) * | 2015-09-15 | 2016-02-10 | 中国石油天然气股份有限公司 | Anti-interference plate turning liquid level meter |
| CN208568030U (en) * | 2018-08-25 | 2019-03-01 | 三亚学院 | Multi-functional measurement instrument with safety guard |
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2020
- 2020-01-09 CN CN202010019724.6A patent/CN110806248B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251622A (en) * | 1986-04-25 | 1987-11-02 | Toshiba Corp | Liquid level detector for high hydraulic pressure circuit |
| CN202754353U (en) * | 2012-09-04 | 2013-02-27 | 如皋市双马化工有限公司 | Storage tank liquid level measurement device |
| CN103411650A (en) * | 2013-08-23 | 2013-11-27 | 合肥艾普拉斯环保科技有限公司 | Anti-blocking device for magnetic turning plate liquid level meter |
| CN205027418U (en) * | 2015-09-15 | 2016-02-10 | 中国石油天然气股份有限公司 | Anti-interference plate turning liquid level meter |
| CN208568030U (en) * | 2018-08-25 | 2019-03-01 | 三亚学院 | Multi-functional measurement instrument with safety guard |
Cited By (1)
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| CN115031811A (en) * | 2022-08-10 | 2022-09-09 | 常州市金马高分子材料有限公司 | Liquid level measuring device and method for production of ETFE colored particles |
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Denomination of invention: A forward reading intelligent remote alarm buoy level gauge Effective date of registration: 20220615 Granted publication date: 20200414 Pledgee: Weifang Rural Commercial Bank Co.,Ltd. Weicheng sub branch Pledgor: WEIFANG YAFENG CHEMICAL INSTRUMENT Co.,Ltd. Registration number: Y2022980007842 |
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Date of cancellation: 20230523 Granted publication date: 20200414 Pledgee: Weifang Rural Commercial Bank Co.,Ltd. Weicheng sub branch Pledgor: WEIFANG YAFENG CHEMICAL INSTRUMENT Co.,Ltd. Registration number: Y2022980007842 |
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Denomination of invention: A Forward Reading Intelligent Remote Alarm Float Level Gauge Effective date of registration: 20230526 Granted publication date: 20200414 Pledgee: Weifang Rural Commercial Bank Co.,Ltd. Weicheng sub branch Pledgor: WEIFANG YAFENG CHEMICAL INSTRUMENT Co.,Ltd. Registration number: Y2023980041782 |