CN109489774B - Quick analog display replacing device for magnetic flap level gauge - Google Patents
Quick analog display replacing device for magnetic flap level gauge Download PDFInfo
- Publication number
- CN109489774B CN109489774B CN201811344357.6A CN201811344357A CN109489774B CN 109489774 B CN109489774 B CN 109489774B CN 201811344357 A CN201811344357 A CN 201811344357A CN 109489774 B CN109489774 B CN 109489774B
- Authority
- CN
- China
- Prior art keywords
- module
- liquid level
- magnet
- button
- magnetic flap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 21
- 229910001220 stainless steel Inorganic materials 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 18
- 238000004088 simulation Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 14
- 238000012937 correction Methods 0.000 claims description 11
- 230000005389 magnetism Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 11
- 239000003208 petroleum Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 102100040862 Dual specificity protein kinase CLK1 Human genes 0.000 description 5
- 101000749294 Homo sapiens Dual specificity protein kinase CLK1 Proteins 0.000 description 3
- 101100156949 Arabidopsis thaliana XRN4 gene Proteins 0.000 description 2
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 2
- 101100215777 Schizosaccharomyces pombe (strain 972 / ATCC 24843) ain1 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
- G01F23/64—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 of the free float type without mechanical transmission elements
- G01F23/72—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 of the free float type without mechanical transmission elements using magnetically actuated indicating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
A quick analog display replacing device for magnetic flap level meter is suitable for analog display of liquid level of storage tank, reaction tank and other devices in process field in petroleum and chemical field, wireless module receives analog display data signal of magnetic flap level meter in real time, after processing by single chip module, it controls motor driving plate to drive direct current motor and reducer assembly to rotate forward or backward, single chip module detects resistance change of multi-turn potentiometer installed on motor shaft of direct current motor and reducer assembly, it controls direct current motor and reducer assembly to rotate forward or backward in place, it drives traction assembly to relax or tighten, traction magnet moves up or down along guide post, magnet drives red Bai Ci turning column on turn indicator of magnetic flap level meter to turn 180 degree by magnetic coupling, when magnet moves up, red Bai Ci turning column turns red into white when magnet moves down, analog display liquid level.
Description
Technical Field
The invention relates to a magnetic flap level meter, in particular to a quick analog display replacing device of a magnetic flap level meter.
Background
Along with the continuous improvement of the industrial production process level of the petroleum, chemical industry and other processes, a plurality of new technologies and new process layers are endless, and the requirements on the operation skills and emergency capability of production personnel and management personnel are higher.
The magnetic flap level gauge is used as a common level detection instrument and is widely applied to level display instruments of storage tanks, reaction tanks and other equipment in petroleum, chemical industry and other process industries.
In actual training, air is adopted as a simulation material of petroleum, chemical industry and other process industry by performing simulation modeling on the petroleum, chemical industry and other process industry flows, and actual operation training is performed on production personnel and management personnel. In order to simulate the production progress and process of each working section more truly, the detection and display values of each detection instrument in the industrial process of petroleum, chemical industry and the like need to be simulated and displayed in real time so as to simulate the actual running condition of the production line.
In order to reflect the actual working conditions of the equipment such as the storage tank, the reaction tank and the like, the liquid level change of the current process flow is required to be displayed on the magnetic flap liquid level meter on the simulation production line according to the calculation data of the process simulation model, and the numerical value calculated in a simulation mode is required to be converted into the simulation display value of the instrument.
Disclosure of Invention
In order to solve the technical problems, the invention provides a quick simulation display replacement device for a magnetic flap level meter, which is suitable for simulating display of liquid levels of equipment such as a storage tank, a reaction tank and the like in the process field in the petroleum and chemical fields.
In order to achieve the technical purpose, the adopted technical scheme is as follows: the quick analog display replacing device for the magnetic flap level gauge comprises a magnetic flap level gauge body pipe provided with a central cavity, a flap indicator arranged on the surface of the magnetic flap level gauge body pipe, a flange with a mounting port arranged at one end of the magnetic flap level gauge body pipe, a plurality of red and white magnetic flap columns arranged on the flap indicator, a sleeve and a control module;
the sleeve is arranged in the pipe cavity of the magnetic flap liquid level meter body pipe from a flange with an installation port, the sleeve component comprises an upper installation plate, a lower installation plate, a guide pillar, a magnet installation plate, a magnet and a linear bearing, the upper installation plate and the lower installation plate are fixedly arranged at two ends of the guide pillar, an installation hole matched with the flange is formed in the lower installation plate, the linear bearing is arranged on the guide pillar, the magnet installation plate is fixedly arranged on the linear bearing, and the magnet is fixedly arranged on the magnet installation plate and corresponds to the red Bai Ci turning pillar;
the control module consists of a driving module and a processor module;
the driving module comprises a direct current motor and speed reducer assembly, a multi-turn potentiometer and a traction assembly, wherein the multi-turn potentiometer is arranged on an output motor shaft of the direct current motor and speed reducer assembly, and the output motor shaft of the direct current motor and speed reducer assembly is connected with a magnet mounting plate through the traction assembly to drive a magnet of the magnet mounting plate to move up and down along a guide post;
the processor module comprises a single-chip microcomputer module, a motor driving plate, a wireless module, a power module, an LCD display module and a clock module, wherein the power module respectively supplies power to the single-chip microcomputer module, the motor driving plate, the wireless module, the multi-turn potentiometer and the clock module;
the wireless module receives data signals which are simulated and displayed by the magnetic flap liquid level meter in real time, the data signals are processed by the single-chip microcomputer module, the motor driving board is controlled to generate corresponding driving signals to drive the direct current motor and the speed reducer assembly to rotate forwards or backwards, the single-chip microcomputer module simultaneously detects resistance changes of a plurality of circles of potentiometers arranged on a motor shaft of the direct current motor and the speed reducer assembly, and the direct current motor and the speed reducer assembly are controlled to rotate forwards or backwards in place; the direct current motor and the speed reducer assembly rotate positively or reversely to drive a traction assembly fixed on an output motor shaft of the direct current motor and the speed reducer assembly to loosen or tighten, a magnet on a traction magnet mounting plate moves upwards or downwards along a guide post, the magnet drives a red Bai Ci turning column on a turning plate indicator of the magnetic turning plate liquid level meter to turn over 180 degrees through magnetic coupling, when the magnet moves upwards, the red-white magnetic turning column turns from white to red, when the magnet moves downwards, the red Bai Ci turning column turns from red to white, and the liquid level is simulated and displayed.
The traction assembly comprises a guide pipe A, a guide pipe B, a guide pipe C, a traction rope A and a traction rope B;
the two guide pipes A are respectively and fixedly arranged on two sides symmetrical to the guide post through the lower mounting plate, one end outlets of the two guide pipes A are respectively and horizontally symmetrically arranged with the output motor shaft of the direct current motor and the reducer assembly, and the other end outlets of the two guide pipes A are both arranged towards the magnet mounting plate;
the two guide pipes B are fixedly arranged on two sides symmetrical to the guide post through the upper mounting plate, both ends of the two guide pipes B are arranged towards the magnet mounting plate, the distance between one end of each guide pipe B and the guide post is smaller than that between the other end of each guide pipe B and the guide post, and the end outlets of the two guide pipes B which are nearer to the guide post are respectively arranged corresponding to the end outlets of the guide pipe A;
the two guide pipes C are fixedly arranged on two sides symmetrical to the guide post through the lower mounting plate, one end outlets of the two guide pipes C are respectively and horizontally symmetrically arranged with an output motor shaft of the direct current motor and the speed reducer assembly, and the other end outlets of the two guide pipes C are respectively and correspondingly arranged with the end outlets of the two guide pipes B far from the guide post;
after the center point of the traction rope A is reversely wound and fixed on an output motor shaft of the direct current motor and the speed reducer assembly, two ends of the traction rope A respectively penetrate through the guide pipe A on the same side to be tensioned and fixed on the magnet mounting plate on the corresponding side;
after the center point of the traction rope B is wound and fixed on the output motor shaft of the direct current motor and speed reducer assembly 12 in the forward direction, two ends of the traction rope B respectively penetrate through the guide pipe C and the guide pipe B on the same side and are downwards pulled and fastened on the magnet mounting plates on the corresponding sides.
The sleeve pipe of the invention also comprises a stainless steel supporting cylinder, wherein the stainless steel supporting cylinder is a stainless steel cylinder which is longitudinally cut off by half along the diameter, and the length and the diameter of the stainless steel supporting cylinder are matched with those of the magnetic flap liquid level meter body pipe; the upper mounting plate and the lower mounting plate are respectively welded at the upper end and the lower end of the stainless steel support cylinder, and the upper mounting plate and the lower mounting plate are kept parallel to each other.
The driving module further comprises an upper limit magnetic switch and a lower limit magnetic switch for detecting the limit position of the upward and downward movement of the magnet, wherein the upper limit magnetic switch and the lower limit magnetic switch powered by the power supply module are respectively arranged at the upper end and the lower end of the guide post, and the signal output end of the upper limit magnetic switch and the signal output end of the lower limit magnetic switch are connected with the input end of the singlechip.
The driving module further comprises a button module, wherein the button module is connected with the singlechip module through a connector A, and a ZERO point button end ZERO, a TEST button end TEST and a Reset button end Reset of a socket of the connector A are respectively connected with an I/O port PC2, an I/O port PC3 and a Reset end Reset of the singlechip module; the ZERO point button end ZERO, the TEST button end TEST and the Reset button end Reset of the plug of the connector A are respectively connected with the ZERO point button end ZERO, the TEST button end TEST and the Reset button end Reset of the button module.
When the magnetic flap liquid level analog output device is used for the first time and the large error occurs in analog display after long-time use, zero point correction is needed to be carried out on the magnetic flap liquid level analog output device, and the method specifically comprises the following steps:
step 1.1, connecting a button module and an LCD display module to a magnetic flap liquid level analog output device through a connector A and a connector B respectively;
step 1.2, pressing a Reset button Reset of the button module, carrying out zero setting initialization on the magnetic flap liquid level analog output device, returning the magnet to a factory zero point, and simultaneously displaying the moving position data of the magnet on the LCD display module in real time;
step 1.3, pressing a zero point button of the button module, executing a zero point adjustment program by the magnetic flap liquid level analog output device, controlling the magnet to quickly move upwards to an upper limit control point by the single chip microcomputer module, then quickly moving downwards, entering a deceleration moving program by the magnet when the zero point button is pressed again, and recording a current position value by the single chip microcomputer module and replacing the recorded value with the original zero point value by the single chip microcomputer module when the zero point button is pressed for the third time when the zero point of the magnetic flap liquid level meter body is reached;
step 1.4, pressing a test button of the button module, and executing a test program by the magnetic flap liquid level simulation output device, wherein the test program is changed from a zero point liquid level to a highest liquid level point, and then is changed from the highest liquid level point to the zero point liquid level;
step 1.5, if the output has deviation, returning to the step 1.2, and carrying out zero point correction on the magnetic flap liquid level analog output device again; and if the deviation does not exist, pressing the zero point button for the fourth time, and ending the zero point correction of the magnetic flap liquid level analog output device.
The magnetic flap liquid level analog output device executes the following steps under the automatic operation mode:
step 2.1, after the magnetic flap liquid level analog output device is powered on, initializing a system;
step 2.2, the wireless module receives the liquid level simulation display value;
step 2.3, after the wireless module receives the liquid level analog display value, the liquid level analog display value is transmitted to the singlechip module;
step 2.4, the singlechip module performs data processing, controls the direct current motor and the speed reducer assembly to rotate in the forward and reverse directions, simultaneously detects the output voltage of the multi-turn potentiometer, and calculates an error value between a set liquid level analog display value and an actual display value;
step 2.5, returning to the step 4 when the error value between the set liquid level analog display value and the actual display value is not zero; and (2) when the error value between the set liquid level simulation display value and the actual display value is smaller than or equal to zero, stopping rotation of the direct current motor and the speed reducer assembly, and returning to the step (2.2).
The beneficial effects of the invention are as follows:
1. on the premise of not changing the appearance and the display mode of the magnetic flap liquid level meter, the device simulates the change of the actual liquid level to the greatest extent by installing the analog display replacing device on the actual magnetic flap liquid level meter;
2. the device has the advantages that the wireless communication function is added, and the wiring workload of simulation production equipment can be simplified;
3. the device is additionally provided with the detachable LCD display module and the button module, can adjust the analog display value of the liquid level, and simultaneously keeps the consistency with the real magnetic flap liquid level meter as far as possible in appearance.
Drawings
FIG. 1 is a schematic view of the structure of a magnetic flap level gauge body tube of the present invention;
FIG. 2 is a schematic perspective view of the sleeve and control module of the present invention;
FIG. 3 is a schematic right-side view of the bushing and control module of the present invention;
FIG. 4 is a schematic cross-sectional view of the B-B direction of FIG. 2;
FIG. 5 is a schematic view of the structure of the sleeve of the present invention;
FIG. 6 is a schematic right-hand view of the sleeve of the present invention;
FIG. 7 is a schematic circuit diagram of a processor module of the present invention;
FIG. 8 is a control flow diagram of an automatic mode of operation of the present invention;
fig. 9 is a control flow chart of the zero point correction module of the present invention;
in the figure: 1. the device comprises a sleeve, 2, a control module, 3, a stainless steel supporting cylinder, 4, an upper mounting plate, 5, a lower mounting plate, 6, a guide pillar, 7, a magnet mounting plate, 8, a magnet, 9, a magnetic flap level meter, 10, a magnetic flap level meter body pipe, 11, a driving module, 12, a direct current motor and speed reducer assembly, 13, a multi-turn potentiometer, 14, a traction rope B,15, a traction rope A,16, a guide pipe C,17, a guide pipe B,18, a guide pipe A,19, an upper limit magnetic switch, 20, a lower limit magnetic switch, 21, a motor protection cover, 22, a processor module, 23, a singlechip module, 24, a motor driving plate, 25, a wireless module, 26, a button module, 27, a power supply module, 28, an LCD display module, 29, a clock module, 30, a red and white magnetic flap column, 31, a flap indicator, 32, a bolt hole, 33, a flange, 34, a traction assembly, 35, an upper plate, 36, a lower detection plate, 37, a bracket, 38, a traction mounting hole, 39, a traction mounting hole, 40, a mounting hole, 41, a mounting hole, 42, a mounting hole, a connector, 43, a linear connector, and a bearing, 44.
Detailed Description
As shown in fig. 1, a quick analog display replacement device for a magnetic flap level gauge comprises a magnetic flap level gauge body pipe 10 provided with a central cavity, a flap indicator 31 arranged on the surface of the magnetic flap level gauge body pipe 10, a sleeve pipe 1 arranged in the magnetic flap level gauge body pipe, and a control module 2, wherein one end of the magnetic flap level gauge body pipe 10 is provided with a flange 33 with an installation opening, the magnetic flap level gauge body pipe 10 is of a hollow tubular structure and is used for installing a matched sleeve pipe 1, the flap level gauge body pipe 10 adopted by the replacement device can be a body pipe which is originally used for liquid to be introduced by a commercial magnetic flap level gauge, a plurality of red and white magnetic flap columns 30 are arranged on the flap indicator 31 in an arrangement manner according to the axis direction of the magnetic flap level gauge body pipe 10, and a plurality of red and white magnetic flap columns are arranged in an interval manner according to the bearing line direction of the magnetic flap level gauge body pipe 10.
As shown in fig. 2 and 3, the sleeve 1 consists of a stainless steel support cylinder 3, an upper mounting plate 4, a lower mounting plate 5, a smooth guide post 6, a magnet mounting plate 7, a magnet 8 and a linear bearing 45; the sleeve 1 can be quickly installed in the magnetic flap level gauge body tube 10, the upper mounting plate 4 and the lower mounting plate 5 are fixedly arranged at two ends of the guide post 6, the lower mounting plate 5 is provided with mounting holes matched with the flange 33, the lower mounting plate 5 is fixedly installed in a matched manner with the flange 33, the linear bearing 45 is installed on the smooth guide post 6 in the sleeve 1, the magnet mounting plate 7 is fixed on the linear bearing 45, and the upward and downward movement of the magnet 8 on the magnet mounting plate 7 on the smooth guide post 6 in the sleeve 1 is controlled to simulate the upward and downward floating of a float in the flap level gauge body tube 10 of the magnetic flap level gauge 9 when the liquid level of a measured container changes.
Wherein, as shown in fig. 5 and 6, the stainless steel supporting cylinder 3 is a stainless steel cylinder which is cut longitudinally and is half cut along the diameter, and the length and the diameter of the stainless steel supporting cylinder 3 are matched with those of the body tube 10 of the magnetic flap level gauge 9; the upper mounting plate 4 and the lower mounting plate 5 are respectively welded at the upper end and the lower end of the stainless steel support cylinder 3, and the upper mounting plate 4 and the lower mounting plate 5 are kept parallel to each other.
The six bolt holes 32 on the lower mounting plate 5 correspond to the six bolt holes of the flange 33 of the magnetic flap level gauge 9, so that the stainless steel support cylinder 3 can be conveniently and quickly mounted on the magnetic flap level gauge 9.
The smooth guide post 6 is vertically arranged between the upper mounting plate 4 and the lower mounting plate 5 through the circle center mounting holes of the upper mounting plate 4 and the lower mounting plate 5.
The linear bearing 45 is mounted on the smooth guide post 6, and the magnet mounting plate 7 is fixed on the linear bearing 45 to reduce friction force when the magnet mounting plate 7 slides up and down along the smooth guide post 6.
The magnet 8 is fixedly arranged on the magnet mounting plate 7 through a screw, and the magnet 8 can move upwards and downwards along with the magnet mounting plate 7 on the smooth guide post 6 in the stainless steel support cylinder 3 to simulate the floating up and down of a float in the body tube 10 of the magnetic flap level meter 9 when the liquid level of a measured container changes.
An upper detection plate 35 and a lower detection plate 36 can be added, and the upper detection plate 35 and the lower detection plate 36 are respectively arranged on the upper direction and the lower direction of the magnet mounting plate 7 and used for touching an upper limit magnetic switch and a lower limit magnetic switch arranged above and below the guide post so as to detect the limit position of upward and downward movement of the magnet 8.
The control module 2 consists of a driving module 11 and a processor module 22, wherein the driving module 11 consists of a direct current motor and speed reducer assembly 12, a multi-turn potentiometer 13 and a traction component 34; the output motor shaft of the direct current motor and speed reducer assembly 12 is provided with a plurality of circles of potentiometers 13, and the output motor shaft of the direct current motor and speed reducer assembly 12 is connected with the magnet mounting plate 7 through a traction component 34 to drive the magnet on the magnet mounting plate 7 to move up and down along the guide post 6.
The processor module 22 consists of a singlechip module 23, a motor drive board 24, a wireless module 25, a power supply module 27, an LCD display module 28 and a clock module 29; the power module 27 supplies power to the single-chip microcomputer module 23, the motor driving plate 24, the wireless module 25, the multi-turn potentiometer 13 and the clock module 29 respectively, the single-chip microcomputer module 23 is connected with the wireless module 25, the multi-turn potentiometer 13, the connector B44 of the LCD display module 28 and the motor driving plate 24 of the clock module 29 respectively, and the power output end of the motor driving plate 24 is connected with the power input end of the direct current motor and the speed reducer assembly 12.
As shown in fig. 7, the wireless module 25 of the processor module 22 receives the data signal of the analog display of the magnetic flap level meter in real time, and after being processed by the single-chip microcomputer module 23, controls the motor driving board 24 to generate a corresponding driving signal to drive the direct current motor and the speed reducer assembly 12 to rotate forward or backward, and the single-chip microcomputer module 23 simultaneously detects the resistance change of the multi-turn potentiometer 13 installed on the motor shaft of the direct current motor and the speed reducer assembly 12 and controls the direct current motor and the speed reducer assembly 12 to rotate forward or backward in place; the direct current motor and the speed reducer assembly 12 rotate forwards or reversely to drive the traction assembly 34 fixed on the output motor shaft of the direct current motor and the speed reducer assembly 12 to loosen or tighten, the magnet 8 on the traction magnet mounting plate 7 moves upwards or downwards along the guide post 6, the magnet 8 drives the red Bai Ci turning column 30 on the turning plate indicator 31 to turn 180 degrees through magnetic coupling, when the magnet 8 moves upwards, the red Bai Ci turning column 30 turns from white to red, when the magnet 8 moves downwards, the red Bai Ci turning column 30 turns from red to white, and the liquid level is simulated and displayed.
The traction assembly comprises a guide pipe A18, a guide pipe B17, a guide pipe C16, a traction rope A15 and a traction rope B14;
two guide pipes A18 are respectively and fixedly arranged on two sides symmetrical to the guide post 6 through the lower mounting plate 5, one end outlets of the two guide pipes A18 are respectively and horizontally symmetrically arranged with the output motor shaft of the direct current motor and the speed reducer assembly 12, and the other end outlets of the two guide pipes A18 are both arranged towards the magnet mounting plate 7;
the two guide pipes B17 are fixedly arranged on two sides symmetrical to the guide post 6 through the upper mounting plate 4, both ends of the two guide pipes B17 are arranged towards the magnet mounting plate 7, the distance between one end of each guide pipe B17 and the guide post 6 is smaller than that between the other end of each guide pipe B17 and the guide post 6, and the end outlets of the two guide pipes B17 which are nearer to the guide post 6 are respectively arranged corresponding to the end outlets of the guide pipe A18;
the two guide pipes C16 are fixedly arranged on two sides symmetrical to the guide post 6 through the lower mounting plate 5, one end outlets of the two guide pipes C16 are respectively and horizontally symmetrically arranged with an output motor shaft of the direct current motor and speed reducer assembly 12, and the other end outlets of the two guide pipes C16 are respectively and correspondingly arranged with the end outlets of the two guide pipes B17 far from the guide post 6;
after the center point of the traction rope A15 is reversely wound and fixed on the output motor shaft of the direct current motor and speed reducer assembly 12, two ends of the traction rope A15 respectively pass through the guide pipes A18 on the same side and are upwards pulled and fixed on the magnet mounting plates 7 on the corresponding side;
after the center point of the traction rope B14 is wound and fixed on the output motor shaft of the direct current motor and speed reducer assembly [12] in the forward direction, two ends of the traction rope B14 respectively pass through the guide pipe C16 and the guide pipe B17 on the same side and are downwards pulled and fixed on the magnet mounting plates 7 on the corresponding sides. The magnet mounting plate 7 can be provided with symmetrical traction mounting holes 38 and 39 for fixing the traction rope A and the traction rope B, and the traction mounting holes 38 and 39 are arranged corresponding to one end outlet of the guide pipe A and one end outlet of the guide pipe B, which is closer to the guide post.
The principle of the whole traction assembly 34 is that one traction rope is loosened through the direct current motor and the speed reducer assembly, and the other traction rope is tightened through the direct current motor and the speed reducer, so that the magnet mounting plate is driven to move up and down.
The driving module 11 further comprises an upper limit magnetic switch 19 and a lower limit magnetic switch 20 for detecting the limit position of the upward and downward movement of the magnet 8, the upper limit magnetic switch 19 and the lower limit magnetic switch 20 powered by the power module 27 are respectively arranged at the upper end and the lower end of the guide post 6, and the signal output end of the upper limit magnetic switch 19 and the signal output end of the lower limit magnetic switch 20 are connected with the input end of the singlechip. The upper limit magnetic switch 19 and the lower limit magnetic switch 20 are respectively and fixedly arranged at an upper end mounting point and a lower end mounting point of the smooth guide rail 6, and the upper end mounting point and the lower end mounting point are the highest position and the lowest position.
In order to protect the whole control module, a motor protection cover capable of being assembled with the lower mounting plate can be arranged on the lower mounting plate, a processor module 22 and a driving module 11 are arranged in the motor protection cover, the processor module 22 can be arranged at the bottom of the motor protection cover 21, a direct current motor and speed reducer assembly 12 is arranged in the motor protection cover 21 and is arranged on the lower mounting plate 5 through a mounting bracket 37, a mounting hole 40, a mounting hole 41 and a flange 42 are arranged on the motor protection cover 21, and bolt holes of the flange 42 on the motor protection cover 21 correspond to bolt holes 32 on the lower mounting plate 5 and are connected with a pollution discharge flange 33 of the magnetic flap liquid level meter body pipe 10 together; the processor module 22 is mounted at the bottom of the motor protection cover 21.
The driving module 11 further comprises a button module 26, the button module 26 is connected with the single-chip microcomputer module 23 through a connector A43, and a ZERO point button end ZERO, a TEST button end TEST and a Reset button end Reset of a socket of the connector A43 are respectively connected with an I/O port PC2, an I/O port PC3 and a Reset end Reset of the single-chip microcomputer module 23; the ZERO point button end ZERO, the TEST button end TEST, and the Reset button end Reset of the plug of the connector a 43 are respectively connected with the ZERO point button end ZERO, the TEST button end TEST, and the Reset button end Reset of the button module 26, and the connector is replaced and installed. When the button module is not arranged, the whole processor module automatically operates, and when the button module is arranged, the zero point correction function can be realized.
The voltage input end VCC of the singlechip module 23 and the voltage input end VCC of the wireless module 25 are respectively connected with the voltage output end VCC of the power supply module 27; the ground GND of the single-chip module 23 and the ground GND of the wireless module 25 are connected to the ground GND of the power module 27, respectively.
The voltage input terminal +12v of the motor driving board 24 is connected with the voltage output terminal +12v of the power module 27, and the ground terminal GND1 of the motor driving board 24 is connected with the ground terminal GND1 of the power module 27.
The power input end VCC and the ground end GND of the multiturn potentiometer 13 are respectively connected with the voltage output end VCC and the ground end GND of the power module 27, and the signal end AIN1 of the multiturn potentiometer 13 is connected with the signal input end AIN1 of the single-chip microcomputer module 23.
The clock output end CLK of the clock module 29 is connected with the clock input end CLK of the singlechip module 23; the data input terminal SIN, the clock terminal SCLK, the data output terminal SOUT and the chip select terminal CS of the wireless module 25 are respectively connected with the I/O ports PB0, PB1, PB2 and PB3 of the singlechip module 23.
The socket of the connector a 43 and the socket of the connector B44 are mounted to the mounting holes 40 and 41 of the motor protection cover 21, respectively.
The ZERO point button end ZERO, the TEST button end TEST and the Reset button end Reset of the socket of the connector A43 are respectively connected with the I/O port PC2, the I/O port PC3 and the Reset end Reset of the singlechip module 23.
The ZERO point button end ZERO, the TEST button end TEST, and the Reset button end Reset of the plug of the connector a 43 are connected with the ZERO point button end ZERO, the TEST button end TEST, and the Reset button end Reset of the button module 26, respectively.
The power end VCC and the ground end GND of the socket of the connector B44 are respectively connected with the power end VCC and the ground end GND of the power module 27; chip select terminal CS1, DATA terminal DATA, and clock terminal CLK1 of the socket of connector B44 are connected to I/O ports PB4, PB5, and PB6 of the single chip module 23, respectively, and serial/parallel select terminal PSB of the socket of connector B44 is connected to ground terminal GND of the power module 27.
The power source VCC, the ground GND, the chip select CS1, the DATA terminal DATA, the clock terminal CLK1, and the serial/parallel select terminal PSB of the plug of the connector B44 are connected to the power source VCC, the ground GND, the chip select CS1, the DATA terminal INOUT, the clock terminal CLK1, and the serial/parallel select terminal PSB of the LCD display module 28, respectively.
The single-chip microcomputer module 23 is connected with the button module 26 and the LCD display module 28 respectively through the mutual connection of the plug and the socket of the connector A43 and the connector B44.
The control power output ends A1 and A2 of the motor driving plate 24 are respectively connected with the power input ends A1 and A2 of the direct current motor and speed reducer assembly 12; the control signal control input end A+ and A-of the motor drive plate 24 are respectively connected with the I/O ends PA0 and PA1 of the singlechip module 23; the direction control signal DIR of the motor drive board 24 is connected to the I/O port PA2 of the single chip microcomputer module 23, and the control signal ground terminal of the motor drive board 24 is connected to the ground terminal GND of the power supply module 27.
The power supply end VCC of the upper limit magnetic switch 19 and the power supply end VCC of the lower limit magnetic switch 20 are respectively connected with the power supply end VCC of the power supply module 27; the ground end GND of the upper limit magnetic switch 19 and the ground end GND of the lower limit magnetic switch 20 are respectively connected with the ground end GND of the power module 27; the signal output end S1 of the upper limit magnetic switch 19 and the signal output end S2 of the lower limit magnetic switch 20 are respectively connected with the I/O ends PA4 and PA5 of the singlechip module 23; when the upper detection plate 35 on the magnet mounting plate 7 is close to the upper limit magnetic switch 19, the upper limit magnetic switch 19 outputs a high level; when the lower detection plate 36 approaches the lower limit magnetic switch 20, the lower limit magnetic switch 20 outputs a high level to realize limit position control of the magnet 8.
The control process of the magnetic flap level meter rapid simulation display replacement device comprises the following steps:
as shown in fig. 9, when a large error occurs in the analog display of the first-content and second-content magnetic flap liquid level analog output device during initial use and after long-time use, zero point correction needs to be performed on the first-content and second-content magnetic flap liquid level analog output device:
step 1.1, connecting the button module 26 and the LCD display module 28 to a magnetic flap liquid level analog output device through a connector A43 and a connector B44 respectively;
step 1.2, pressing a Reset button Reset of the button module 26, carrying out zeroing initialization on the magnetic flap liquid level analog output device, returning the magnet 8 to a factory zero point, and simultaneously displaying the moving position data of the magnet 8 on the LCD display module 28 in real time;
step 1.3, pressing a zero point button of the button module 26, executing a zero point adjustment program by the magnetic flap liquid level analog output device, controlling the magnet 8 to quickly move upwards to an upper limit control point by the single chip microcomputer module 23, then quickly moving downwards, entering a deceleration moving program by the magnet 8 when the zero point button is pressed again, and recording a current position value by the single chip microcomputer module 23 and replacing the recorded value with the original zero point value by pressing the zero point button for the third time when the zero point of the magnetic flap liquid level meter body tube is reached;
step 1.4, pressing a test button of the button module 26, and executing a test program by the magnetic flap liquid level simulation output device, wherein the test program is changed from a zero point liquid level to a highest liquid level point, and then is changed from the highest liquid level point to the zero point liquid level;
step 1.5, if the output has deviation, returning to the step 1.2, and carrying out zero point correction on the magnetic flap liquid level analog output device again; and if the deviation does not exist, pressing the zero point button for the fourth time, and ending the zero point correction of the magnetic flap liquid level analog output device.
In the second content, as shown in fig. 8, the magnetic flap liquid level analog output device performs the following steps in the automatic operation mode:
step 2.1, after the magnetic flap liquid level analog output device is powered on, initializing a system;
step 2.2, the wireless module receives the liquid level simulation display value;
step 2.3, after the wireless module receives the liquid level analog display value, the liquid level analog display value is transmitted to the singlechip module;
step 2.4, the singlechip module performs data processing, controls the direct current motor and the speed reducer assembly to rotate in the forward and reverse directions, simultaneously detects the output voltage of the multi-turn potentiometer, and calculates an error value between a set liquid level analog display value and an actual display value;
step 2.5, returning to the step 4 when the error value between the set liquid level analog display value and the actual display value is not zero; and (2) when the error value between the set liquid level simulation display value and the actual display value is smaller than or equal to zero, stopping rotation of the direct current motor and the speed reducer assembly, and returning to the step (2.2).
Claims (5)
1. The utility model provides a quick analog display replacement device of magnetic flap level gauge, including magnetic flap level gauge body pipe (10) and the board indicator (31) of setting on magnetic flap level gauge body pipe (10) surface that is equipped with the center lumen, the one end of magnetic flap level gauge body pipe (10) is equipped with flange (33) that have the installing port, is provided with a plurality of red white magnetism in board indicator (31) range and turns over post (30), its characterized in that: the device also comprises a sleeve (1) and a control module (2);
the sleeve (1) is arranged in a pipe cavity of the magnetic flap liquid level meter body pipe (10) from a flange (33) with an installation opening, the sleeve (1) comprises an upper installation plate (4), a lower installation plate (5), a guide pillar (6), a magnet installation plate (7), a magnet (8) and a linear bearing (45), the upper installation plate (4) and the lower installation plate (5) are fixedly arranged at two ends of the guide pillar (6), an installation hole matched with the flange (33) is formed in the lower installation plate (5), the linear bearing (45) is arranged on the guide pillar (6), the magnet installation plate (7) is fixedly arranged on the linear bearing (45), and the magnet (8) is fixedly arranged on the magnet installation plate (7) and corresponds to the red Bai Ci turning column (30);
the sleeve (1) further comprises a stainless steel supporting cylinder (3), the stainless steel supporting cylinder (3) is a stainless steel cylinder which is cut off longitudinally along the diameter by half, and the length and the diameter of the stainless steel supporting cylinder (3) are matched with those of the magnetic flap liquid level meter body tube (10); the upper mounting plate (4) and the lower mounting plate (5) are respectively welded at the upper end and the lower end of the stainless steel supporting cylinder (3), and the upper mounting plate (4) and the lower mounting plate (5) are kept parallel to each other;
the control module (2) consists of a driving module (11) and a processor module (22);
the driving module (11) comprises a direct current motor and speed reducer assembly (12), a multi-turn potentiometer (13) and a traction assembly (34), wherein the multi-turn potentiometer (13) is arranged on an output motor shaft of the direct current motor and speed reducer assembly (12), and the output motor shaft of the direct current motor and speed reducer assembly (12) is connected with a magnet mounting plate (7) through the traction assembly (34) to drive a magnet on the magnet mounting plate (7) to move up and down along a guide post (6);
the driving module (11) further comprises an upper limit magnetic switch (19) and a lower limit magnetic switch (20) for detecting the limit position of the upward and downward movement of the magnet (8), the upper limit magnetic switch (19) and the lower limit magnetic switch (20) powered by the power module (27) are respectively arranged at the upper end and the lower end of the guide post (6), and the signal output end of the upper limit magnetic switch (19) and the signal output end of the lower limit magnetic switch (20) are connected with the input end of the singlechip;
the processor module (22) comprises a single-chip microcomputer module (23), a motor driving plate (24), a wireless module (25), a power supply module (27), an LCD display module (28) and a clock module (29), wherein the power supply module (27) respectively supplies power to the single-chip microcomputer module (23), the motor driving plate (24), the wireless module (25), the multi-turn potentiometer (13) and the clock module (29), the single-chip microcomputer module (23) is respectively connected with the wireless module (25), the multi-turn potentiometer (13), a connector B (44) of the LCD display module (28) and the motor driving plate (24) of the clock module (29), and the power output end of the motor driving plate (24) is connected with the power input end of the direct current motor and the speed reducer assembly (12);
the wireless module (25) receives data signals which are simulated and displayed by the magnetic flap liquid level meter in real time, the data signals are processed by the single-chip microcomputer module (23), the motor driving board (24) is controlled to generate corresponding driving signals to drive the direct current motor and the speed reducer assembly (12) to rotate forwards or reversely, the single-chip microcomputer module (23) simultaneously detects resistance change of a plurality of circles of potentiometers (13) arranged on a motor shaft of the direct current motor and the speed reducer assembly (12), and the direct current motor and the speed reducer assembly (12) are controlled to rotate forwards or reversely in place; the direct current motor and the speed reducer assembly (12) rotate positively or reversely to drive a traction assembly (34) fixed on an output motor shaft of the direct current motor and the speed reducer assembly (12) to loosen or tighten, a magnet (8) on a traction magnet mounting plate (7) moves upwards or downwards along a guide post (6), the magnet (8) drives a red Bai Ci turning column (30) on a turning plate indicator (31) to turn 180 degrees through magnetic coupling, when the magnet (8) moves upwards, the red Bai Ci turning column (30) turns from white to red, and when the magnet (8) moves downwards, the red Bai Ci turning column (30) turns from red to white to simulate and display liquid level.
2. The quick analog display replacement device of a magnetic flap level meter according to claim 1, wherein: the traction assembly comprises a guide pipe A (18), a guide pipe B (17), a guide pipe C (16), a traction rope A (15) and a traction rope B (14);
two guide pipes A (18) are respectively and fixedly arranged on two sides symmetrical to the guide post (6) through a lower mounting plate (5), one end outlets of the two guide pipes A (18) are respectively and horizontally symmetrically arranged with an output motor shaft of the direct current motor and the speed reducer assembly (12), and the other end outlets of the two guide pipes A (18) are both arranged towards the magnet mounting plate (7);
the two guide pipes B (17) are fixedly arranged on two sides symmetrical to the guide post (6) through the upper mounting plate (4), two ends of the two guide pipes B (17) are arranged towards the magnet mounting plate (7), the distance between one end of each guide pipe B (17) and the guide post (6) is smaller than that between the other end of each guide pipe B and the guide post, and the end outlets of the two guide pipes B (17) which are closer to the guide post (6) are respectively arranged corresponding to the end outlets of the guide pipe A (18);
two guide pipes C (16) are fixedly arranged on two sides symmetrical to the guide post (6) through a lower mounting plate (5), one end outlets of the two guide pipes C (16) are respectively and horizontally symmetrically arranged with an output motor shaft of the direct current motor and speed reducer assembly (12), and the other end outlets of the two guide pipes C (16) are respectively and correspondingly arranged with end outlets of two guide pipes B (17) far away from the guide post (6);
after the center point of the traction rope A (15) is reversely wound and fixed on the output motor shaft of the direct current motor and speed reducer assembly (12), the two ends of the traction rope A (15) respectively pass through the guide pipe A (18) on the same side and are upwards tensioned and fixed on the magnet mounting plates (7) on the corresponding side;
after the center point of the traction rope B (14) is wound and fixed on the output motor shaft of the direct current motor and speed reducer assembly (12) in the forward direction, two ends of the traction rope B (14) respectively penetrate through the guide pipe C (16) and the guide pipe B (17) on the same side to be tensioned and fixed on the magnet mounting plate (7) on the corresponding side.
3. The quick analog display replacement device of a magnetic flap level meter according to claim 1, wherein: the driving module (11) further comprises a button module (26), the button module (26) is connected with the singlechip module (23) through a connector A (43), and a ZERO point button end ZERO, a TEST button end TEST and a Reset button end Reset of a socket of the connector A (43) are respectively connected with an I/O port PC2, an I/O port PC3 and a Reset end Reset of the singlechip module (23); the ZERO point button end ZERO, the TEST button end TEST and the Reset button end Reset of the plug of the connector A (43) are respectively connected with the ZERO point button end ZERO, the TEST button end TEST and the Reset button end Reset of the button module (26).
4. A rapid analog display replacement device for a magnetic flap level meter as claimed in claim 3, wherein: when the magnetic flap liquid level analog output device is used for the first time and the error occurs in analog display after long-time use, zero point correction is needed to be carried out on the magnetic flap liquid level analog output device, and the method specifically comprises the following steps:
step 1.1, connecting a button module (26) and an LCD display module (28) to a magnetic flap liquid level analog output device through a connector A (43) and a connector B (44) respectively;
step 1.2, pressing a Reset button Reset of the button module (26), carrying out zero setting initialization on the magnetic flap liquid level analog output device, returning the magnet (8) to a factory zero point, and simultaneously displaying the moving position data of the magnet (8) on the LCD display module (28) in real time;
step 1.3, pressing a zero point button of a button module (26), executing a zero point adjustment program by the magnetic flap liquid level analog output device, controlling a magnet (8) by a single chip microcomputer module (23) to quickly move upwards to an upper limit control point and then to quickly move downwards, when the zero point button is pressed again, enabling the magnet (8) to enter a deceleration moving program, when the zero point of a magnetic flap liquid level meter body pipe is reached, pressing the zero point button for the third time, recording a current position value by the single chip microcomputer module (23), and replacing the position value with the original zero point value;
step 1.4, pressing a test button of the button module (26), and executing a test program by the magnetic flap liquid level simulation output device, wherein the test program is changed from a zero point liquid level to a highest liquid level point, and then is changed from the highest liquid level point to the zero point liquid level;
step 1.5, if the output has deviation, returning to the step 1.2, and carrying out zero point correction on the magnetic flap liquid level analog output device again; and if the deviation does not exist, pressing the zero point button for the fourth time, and ending the zero point correction of the magnetic flap liquid level analog output device.
5. The quick analog display replacement device of a magnetic flap level meter according to claim 1, wherein: the magnetic flap liquid level analog output device executes the following steps in an automatic operation mode:
step 2.1, after the magnetic flap liquid level analog output device is powered on, initializing a system;
step 2.2, the wireless module receives the liquid level simulation display value;
step 2.3, after the wireless module receives the liquid level analog display value, the liquid level analog display value is transmitted to the singlechip module;
step 2.4, the singlechip module performs data processing, controls the direct current motor and the speed reducer assembly to rotate in the forward and reverse directions, simultaneously detects the output voltage of the multi-turn potentiometer, and calculates an error value between a set liquid level analog display value and an actual display value;
step 2.5, returning to the step 2.4 when the error value between the set liquid level analog display value and the actual display value is not zero; and when the error value between the set liquid level simulation display value and the actual display value is equal to zero, stopping the rotation of the direct current motor and the speed reducer assembly, and returning to the step 2.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344357.6A CN109489774B (en) | 2018-11-13 | 2018-11-13 | Quick analog display replacing device for magnetic flap level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344357.6A CN109489774B (en) | 2018-11-13 | 2018-11-13 | Quick analog display replacing device for magnetic flap level gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109489774A CN109489774A (en) | 2019-03-19 |
| CN109489774B true CN109489774B (en) | 2023-11-03 |
Family
ID=65694331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811344357.6A Active CN109489774B (en) | 2018-11-13 | 2018-11-13 | Quick analog display replacing device for magnetic flap level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567535B (en) * | 2019-09-20 | 2020-10-23 | 长春工业大学 | Turning plate type triboelectric rotor flow meter |
| CN116007713B (en) * | 2023-01-06 | 2023-10-17 | 河南永创自动化控制技术有限公司 | Automatic detection and correction magnetic flap level gauge for low-temperature environment |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626400A (en) * | 1967-10-18 | 1971-12-07 | Gen Motors Corp | Self-checking fluid level indicators |
| US5877955A (en) * | 1995-11-13 | 1999-03-02 | Waterstrike Incorporated | Transducerless position determining system and method for the same |
| CN2575619Y (en) * | 2002-11-05 | 2003-09-24 | 郭廷麟 | Electronic scale for portal jib crane and bridge crane use |
| CN102103809A (en) * | 2010-12-13 | 2011-06-22 | 南京化工职业技术学院 | Simulated digital light column type liquid level meter |
| CN102129809A (en) * | 2011-03-11 | 2011-07-20 | 无锡职业技术学院 | Liquid level measurement and control training system and operation method thereof |
| CN102723022A (en) * | 2012-06-25 | 2012-10-10 | 哈尔滨工业大学 | Teaching experimental apparatus for control of ultrasonic level |
| CN103837209A (en) * | 2014-03-14 | 2014-06-04 | 洛阳理工学院 | Underground water level monitoring and early warning device |
| CN104075781A (en) * | 2014-07-09 | 2014-10-01 | 宁波乔士橡塑有限公司 | Liquid storage pot liquid level sensor performance test board |
| CN203940912U (en) * | 2014-07-09 | 2014-11-12 | 宁波乔士橡塑有限公司 | A kind of liquid storage kettle liquid level sensor is performance test bed |
| CN204269204U (en) * | 2014-12-18 | 2015-04-15 | 重庆川仪自动化股份有限公司 | The simulated testing system of ultrasonic level gage |
| CN204833833U (en) * | 2015-07-26 | 2015-12-02 | 田翊辰 | High school physics gravity experiment analogue means |
| KR101620850B1 (en) * | 2015-09-07 | 2016-05-23 | 주식회사 지오네트 | Method and system for measuring sensor performance evaluation using virtual iso-sensor technology |
| CN206075603U (en) * | 2016-07-30 | 2017-04-05 | 杭州市特种设备检测研究院 | A kind of emulation bi- colour water gauge |
| CN206804114U (en) * | 2017-06-02 | 2017-12-26 | 铁强河北科技发展有限公司 | A kind of new magnetic double level gauge |
| CN207585722U (en) * | 2017-09-28 | 2018-07-06 | 范序政 | A kind of double-colored tank fill level emulation displays of LED |
| CN209280097U (en) * | 2018-11-13 | 2019-08-20 | 洛阳理工学院 | A kind of magnetic double level gauge Fast simulation display alternative |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202039439U (en) * | 2009-09-08 | 2011-11-16 | 丁利民 | Multifunctional portable squatting pan sewage tank with liquid level display and exhaust valve |
| US8521495B2 (en) * | 2010-12-10 | 2013-08-27 | The Boeing Company | Calculating liquid levels in arbitrarily shaped containment vessels using solid modeling |
-
2018
- 2018-11-13 CN CN201811344357.6A patent/CN109489774B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626400A (en) * | 1967-10-18 | 1971-12-07 | Gen Motors Corp | Self-checking fluid level indicators |
| US5877955A (en) * | 1995-11-13 | 1999-03-02 | Waterstrike Incorporated | Transducerless position determining system and method for the same |
| CN2575619Y (en) * | 2002-11-05 | 2003-09-24 | 郭廷麟 | Electronic scale for portal jib crane and bridge crane use |
| CN102103809A (en) * | 2010-12-13 | 2011-06-22 | 南京化工职业技术学院 | Simulated digital light column type liquid level meter |
| CN102129809A (en) * | 2011-03-11 | 2011-07-20 | 无锡职业技术学院 | Liquid level measurement and control training system and operation method thereof |
| CN102723022A (en) * | 2012-06-25 | 2012-10-10 | 哈尔滨工业大学 | Teaching experimental apparatus for control of ultrasonic level |
| CN103837209A (en) * | 2014-03-14 | 2014-06-04 | 洛阳理工学院 | Underground water level monitoring and early warning device |
| CN104075781A (en) * | 2014-07-09 | 2014-10-01 | 宁波乔士橡塑有限公司 | Liquid storage pot liquid level sensor performance test board |
| CN203940912U (en) * | 2014-07-09 | 2014-11-12 | 宁波乔士橡塑有限公司 | A kind of liquid storage kettle liquid level sensor is performance test bed |
| CN204269204U (en) * | 2014-12-18 | 2015-04-15 | 重庆川仪自动化股份有限公司 | The simulated testing system of ultrasonic level gage |
| CN204833833U (en) * | 2015-07-26 | 2015-12-02 | 田翊辰 | High school physics gravity experiment analogue means |
| KR101620850B1 (en) * | 2015-09-07 | 2016-05-23 | 주식회사 지오네트 | Method and system for measuring sensor performance evaluation using virtual iso-sensor technology |
| CN206075603U (en) * | 2016-07-30 | 2017-04-05 | 杭州市特种设备检测研究院 | A kind of emulation bi- colour water gauge |
| CN206804114U (en) * | 2017-06-02 | 2017-12-26 | 铁强河北科技发展有限公司 | A kind of new magnetic double level gauge |
| CN207585722U (en) * | 2017-09-28 | 2018-07-06 | 范序政 | A kind of double-colored tank fill level emulation displays of LED |
| CN209280097U (en) * | 2018-11-13 | 2019-08-20 | 洛阳理工学院 | A kind of magnetic double level gauge Fast simulation display alternative |
Non-Patent Citations (2)
| Title |
|---|
| "新型浮筒液位计校验仪的设计开发";唐云龙;《中国优秀硕士学位论文全文数据库信息科技辑》(第07期);第I140-136页 * |
| "智能油气计量系统的设计";刘思宇;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》(第07期);第B019-105页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109489774A (en) | 2019-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109489774B (en) | Quick analog display replacing device for magnetic flap level gauge | |
| CN103076153A (en) | Resistance testing device for cable-towed ship model | |
| CN102053000A (en) | Rotary testing device for vortex-induced vibration for oblique riser under shear current | |
| US10299466B2 (en) | Electronically-controlled water flow regulator system for poultry drinker lines | |
| CN106847004B (en) | A kind of teaching tension test platform | |
| CN107192927A (en) | A kind of partial discharge of transformer positions analogue means | |
| CN209280097U (en) | A kind of magnetic double level gauge Fast simulation display alternative | |
| CN109700180A (en) | A kind of computer teaching auxiliary device | |
| CN102445192B (en) | Communicating tube member inclination sensor | |
| CN110146670A (en) | A kind of floating type wireless internet of things monitoring device for water utilities prospecting | |
| CN205570379U (en) | Instrument elevating gear is used in chemistry experiment teaching | |
| CN212180242U (en) | Test platform for detecting spraying operation index | |
| CN207528571U (en) | Expansion pipe test equipment | |
| US10548300B2 (en) | Electronically-controlled water flow regulator system for poultry drinker lines | |
| CN203337600U (en) | Flat plate test electrolytic tank | |
| CN202694156U (en) | LED (Light Emitting Diode) moving head lamp steering and locating device utilizing photoelectric sensor | |
| CN206162992U (en) | Three -dimensional locater | |
| CN102436777A (en) | Electronic simulation manually operated valve with continuously adjustable property | |
| CN219810467U (en) | Detection equipment for electric actuating mechanism | |
| CN107067932B (en) | Simulation experiment device for aeration effect | |
| CN107837441A (en) | One kind transfusion extension tube air horn | |
| CN218994443U (en) | Digital pressure gauge convenient to installation | |
| CN207096030U (en) | A kind of gas volume measurement apparatus | |
| CN220084088U (en) | Construction quality control system for assembled building concrete composite floor slab | |
| CN110675681A (en) | Training assessment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |