CN112556784A - Liquid level evaporation measuring device - Google Patents
Liquid level evaporation measuring device Download PDFInfo
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- CN112556784A CN112556784A CN202011538103.5A CN202011538103A CN112556784A CN 112556784 A CN112556784 A CN 112556784A CN 202011538103 A CN202011538103 A CN 202011538103A CN 112556784 A CN112556784 A CN 112556784A
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- liquid level
- guide
- plate
- controller
- driving motor
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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
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to a liquid level evaporation measuring device, which comprises a guide seat, wherein the guide seat is provided with a guide groove, the guide seat is provided with an accommodating cavity, and a long hole is formed in front of the accommodating cavity; a lead screw nut mechanism is arranged in the accommodating cavity; the guide plate comprises a plate body and a guide part, and the nut is fixedly connected with the guide plate through a connecting rod; a driving motor is fixed at the top of the guide seat, an incremental encoder is arranged above the driving motor, a lower transmission part of the driving motor is in transmission connection with the lead screw, and an upper transmission part of the driving motor is in transmission connection with the incremental encoder; a supporting plate is arranged on the guide plate, and a liquid level sensor is arranged on the supporting plate; the guide seat is fixedly provided with a controller; the controller is in control connection with the incremental encoder, the controller is in control connection with the driving motor, and the controller is in control connection with the liquid level sensor; the power supply is also included, a limit switch is fixed on the front side of the guide seat and is in control connection with the controller; the evaporation capacity measured by the liquid level evaporation measuring device is more accurate.
Description
Technical Field
The invention belongs to the technical field of liquid level evaporation measurement, and particularly relates to a liquid level evaporation measuring device.
Background
Evaporation is a vaporization process occurring on the surface of a liquid, evaporation is one of main components of water circulation, and evaporation related data are very important for the design and management of farmland water conservancy construction, salt industry production, particularly reservoirs. The evaporation amount is an amount of water which is evaporated and dispersed in the air in a certain period of time, and is generally expressed by a number of millimeters of the thickness of the water layer which is evaporated, and the evaporation amount of water on the water surface or the soil is measured by different evaporators. Generally, the higher the temperature, the lower the humidity, the higher the wind speed and the lower the air pressure, the larger the evaporation capacity; whereas the smaller the evaporation amount.
Therefore, the observation of the evaporation amount is also one of the very important works of the relevant scientific research units of the hydrometeorology department, the water conservancy department, the ecological department and the like. The method is used for detecting the water surface evaporation of the water body and the change rule of the evaporation capacity of the water body in different areas and time so as to have important significance in the aspects of hydrological weather forecast, disaster prevention and reduction, water resource evaluation, hydrological model determination, water-involved engineering planning and the like. The measurement accuracy of evaporation observation in the prior art is 0.1 millimeter, and when the measurement is carried out by using the existing measurement tool, the measurement device can be stopped without contacting the water surface or only after penetrating into the liquid level because an operator observes obliquely above, so that the measurement result is inaccurate.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a liquid level evaporation measuring device, so as to solve the problems of the prior art that the measurement of the liquid level evaporation is inconvenient and the measurement result is inaccurate.
In order to achieve the purpose, the technical scheme adopted by the liquid level evaporation measuring device is as follows:
a liquid level evaporation measurement device comprising:
a guide seat: the guide seat is arranged in an extending manner along the up-down direction, guide grooves extending along the up-down direction are formed in the left side and the right side of the guide seat, an accommodating cavity with an upward opening is formed in the middle of the guide seat, and a long hole which is communicated with the inside and the outside of the accommodating cavity and extends along the up-down direction is formed in the front of the accommodating cavity;
a screw nut mechanism: the screw rod is arranged in the accommodating cavity, extends along the up-down direction, and is provided with a nut in a threaded fit manner;
a guide plate: the nut is fixedly connected with the guide plate through a connecting rod, and the connecting rod penetrates through the long hole;
driving a motor: the incremental encoder is fixed at the top of the guide seat, an output shaft of the driving motor comprises a lower transmission part extending downwards and an upper transmission part extending upwards, the upper transmission part and the lower transmission part synchronously rotate, the lower transmission part of the driving motor is in transmission connection with the lead screw, and the upper transmission part of the driving motor is in transmission connection with the incremental encoder;
a support plate: the liquid level sensor is fixed on the guide plate, and the supporting plate is provided with a liquid level sensor;
a controller: the controller is fixedly arranged relative to the guide seat, is in control connection with the incremental encoder, is in control connection with the driving motor, and is in control connection with the liquid level sensor;
power supply: the power supply is electrically connected with the controller;
a limit switch: the front side of the guide seat is fixed and is in control connection with the controller;
a display device: the display device is connected with the controller in a control way and is used for displaying the liquid level evaporation height;
the contact between the guide plate and the limit switch is defined as an initial position, during measurement, the guide plate is located at the initial position, the driving motor rotates forwards to drive the screw nut mechanism to rotate, the nut drives the guide plate to move downwards to enable the liquid level sensor to move downwards, when the liquid level sensor is in contact with the liquid level, the liquid level sensor sends a signal to the controller to enable the controller to control the driving motor to rotate backwards, the nut drives the guide plate to move upwards, when the guide plate touches the limit switch again, the limit switch sends a signal to the controller, the controller controls the motor to stop working, the guide plate returns to the initial position, the liquid level height is measured again within a certain time interval, and the liquid level evaporation height can be calculated.
Has the advantages that: firstly, the liquid level evaporation measuring device can realize automatic measurement of the liquid level height through the arrangement of components such as a driving motor, a screw-nut mechanism, a liquid level sensor, a limit switch, a controller and the like, secondly, the driving motor drives the screw-nut mechanism to move so as to drive the liquid level sensor to contact the liquid level, thus measuring the liquid level height, in the process that a guide plate contacts the liquid level from an initial position, an incremental encoder converts the rotating angle of an output shaft of the driving motor into a pulse signal, thereby more accurately measuring the pulse quantity, and more accurately calculating the rotating angle of the output shaft of the motor through the pulse quantity, thereby indirectly and accurately calculating the descending height of the nut with the liquid level sensor, and further more accurately measuring the evaporation quantity by the liquid level evaporation measuring device.
Furthermore, the cross section of each guide groove is in a V shape, a guide convex part is formed between the two guide grooves, and a dovetail groove matched with the guide convex part is formed between the two guide parts of the guide plate.
Has the advantages that: the guide plate is guaranteed to be more stable when moving relative to the guide seat, so that the stability of the liquid level sensor in the moving process is guaranteed, and the accuracy of the measuring result of the liquid level evaporation measuring device is indirectly guaranteed.
The top of guide holder is fixed with the mount pad, and the mount pad is the U-shaped, and the mount pad includes first diaphragm, the second diaphragm that parallel interval set up from top to bottom and the first vertical plate of being connected with first diaphragm and second diaphragm vertical respectively, and driving motor is located between first diaphragm and the second diaphragm, incremental encoder is fixed in first diaphragm top.
Has the advantages that: the mounting seat is arranged to provide specific structural support above the motor for the incremental encoder, so that the screw nut mechanism is driven to move and can be in transmission connection with the incremental encoder through the transmission of the transmission moving part and the lower transmission part on the output shaft of the motor, and the output shaft of the driving motor is simpler to set.
The rear portion of the guide seat is fixedly provided with a connecting frame, the power supply comprises a storage battery and a solar cell panel electrically connected with the storage battery, and the storage battery is fixed on the connecting frame.
Has the advantages that: the battery is fixed on the link, not only can provide the electric energy for the controller, and the battery can also increase liquid level evaporation measuring device's stability as liquid level evaporation measuring device's counter weight moreover.
The backup pad is L shape, including the first plate section of vertical setting and the second plate section of level setting, first plate section and deflector fixed connection, second plate section and level sensor fixed connection.
Has the advantages that: the supporting plate structure is simple to set.
Every time the upper transmission part of the driving motor rotates for one circle, the incremental encoder generates 3000 pulses.
Has the advantages that: the driving part on the driving motor rotates for a circle and is divided into 3000 parts, and under the condition that the screw pitch is fixed, the moving height of the liquid level sensor from the initial position to the liquid level can be measured more accurately, so that the evaporation capacity of the liquid level can be calculated more accurately.
Drawings
FIG. 1 is a front view of a liquid level evaporation measurement device of the present invention;
FIG. 2 is a side view of one of the liquid level evaporation measurement devices of FIG. 1;
FIG. 3 is a schematic structural diagram of a guide seat in the liquid level evaporation measuring device in FIG. 1;
fig. 4 is a schematic structural diagram of a guide plate in the liquid level evaporation measuring device in fig. 1.
Reference numerals: 1-a guide seat; 2-a guide plate; 3-a guide groove; 4-long holes; 5-a lead screw; 6-mounting a base; 7-driving a motor; 8-incremental encoder; 9-lower transmission part; 10-an upper transmission part; 11-a support plate; 12-a liquid level sensor; 13-limit switch; 14-a connecting frame; 15-a storage battery; 16-a controller; 17-a containment chamber; 18-a guide projection; 19-a plate body; 20-a guide; 21-dovetail groove.
Detailed Description
The liquid level evaporation measuring device of the present invention is further described in detail with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1 and 2, the liquid level evaporation measuring device of the present invention includes a guide holder 1, the guide holder 1 is disposed to extend in the vertical direction, as shown in fig. 3, guide grooves 3 extending in the vertical direction are disposed on the left and right sides of the guide holder 1, the cross-sectional shape of the guide groove 3 is V-shaped, the opening of the left guide groove 3 faces to the left, the opening of the right guide groove 3 faces to the right, a guide convex portion 18 is formed between the two guide grooves 3, an accommodating chamber 17 having an upward opening is disposed in the middle of the guide holder 1, and a long hole 4 extending in the vertical direction is disposed in front of the accommodating chamber 17 and communicates with the inside and outside of the accommodating chamber 17.
A screw nut mechanism is arranged in the accommodating cavity 17 of the guide seat 1, the screw 5 extends along the up-down direction, and a nut is matched with the upper thread of the screw 5. The guide plate 2 is slidably fitted on the guide holder 1, and as shown in fig. 4, the guide plate 2 includes a plate body 19 located on the front side of the guide holder 1 and guide portions 20 provided on the left and right sides of the plate body 19 and slidably fitted in the guide grooves 3, and a dovetail groove 21 fitted in the guide protrusion 18 is formed between the two guide portions 20 of the guide plate 2. The nut of the screw-nut mechanism is fixedly connected with the plate body 19 of the guide plate 2 through a connecting rod, the connecting rod penetrates through the long hole 4, and the arrangement of the connecting rod can lead the screw 5 to be the nut during rotation and enable the nut to move along the vertical direction; moreover, the provision of the tie rod also enables the guide plate 2 to be kept moving in synchronism with the nut.
Referring back to fig. 1 and 2, a mounting seat 6 is fixed above the guide seat 1, the mounting seat 6 is U-shaped and includes a first transverse plate, a second transverse plate and a second longitudinal plate, the first transverse plate and the second transverse plate are arranged in parallel at an interval from top to bottom, the second longitudinal plate is vertically connected with the first transverse plate and the second transverse plate, and the second longitudinal plate is arranged at the rear parts of the first transverse plate and the second transverse plate. Be provided with driving motor 7 between first diaphragm and second diaphragm, fixedly above first diaphragm be provided with increment type encoder 8, driving motor 7's output shaft includes the lower transmission portion 9 that downwardly extending set up and the last transmission portion 10 that upwardly extending set up, goes up transmission portion 10 and 9 synchronous rotations of lower transmission, and driving motor 7's lower transmission portion 9 is connected with lead screw 5 transmission, and driving motor 7's last transmission portion 10 is connected with increment type encoder 8 transmission.
Fixedly on deflector 2 be provided with backup pad 11, backup pad 11 is L shape, including the first plate section of vertical setting and the second plate section of level setting, first plate section and 2 fixed connection of deflector, fixedly connected with level sensor 12 on the second plate section. The connecting frame 14 is fixedly arranged behind the guide seat 1, and a power supply is fixed on the connecting frame 14, in the embodiment, the power supply comprises a storage battery 15 and a solar cell panel electrically connected with the storage battery 15, and the storage battery 15 is fixed on the connecting frame 14. The battery 15 can be regarded as a counterweight of the liquid level evaporation measuring device by the arrangement position of the battery 15, so that the stability of the liquid level evaporation measuring device is further improved.
The liquid level evaporation measuring device further comprises a controller 16, the controller 16 is fixed on the connecting frame 14, the controller 16 is electrically connected with the storage battery 15, the controller 16 is connected with the liquid level sensor in a control mode, the controller 16 is connected with the incremental encoder 8 in a control mode, and the controller 16 is connected with the driving motor 7 in a control mode. A limit switch 13 is fixed on the front side of the guide seat 1, the limit switch 13 is arranged on the upper part of the guide seat 1, and the limit switch 13 is in control connection with a controller 16. The liquid level evaporation measuring device also comprises a display device, in the embodiment, the display device is a computer display screen, the computer display screen is in control connection with the controller 16, and the counting pulse number, the liquid level height and the liquid level evaporation amount of the incremental encoder 8 are displayed through a serial port of a computer, so that the result is more visual; furthermore, in the present embodiment, the incremental encoder 8 generates 3000 pulses every time the upper transmission portion 10 of the drive motor 7 rotates one revolution. So that the liquid level height and the accuracy of the evaporation amount of the liquid level can be improved to 0.001 mm.
The initial position of the guide plate 2 is defined when the guide plate 2 is contacted with the limit switch 13, the liquid level height of the day is measured at the 8 th morning of the first day, then the liquid level height of the day is measured at the 8 th morning of the second day, and the liquid level height difference of the two days is the liquid level evaporation capacity of the day (24 hours).
During measurement, the guide plate 2 is located at an initial position, the liquid level evaporation measuring device starts to work, the driving motor 7 rotates forwards to drive the screw nut mechanism to rotate, the screw nut mechanism drives the guide plate 2 to move downwards together with the supporting plate 11, so that the liquid level sensor 12 on the supporting plate 11 moves downwards, when the liquid level sensor 12 is in contact with the liquid level, the liquid level sensor 12 sends a signal to the controller 16 firstly, the controller 16 controls the driving motor 7 to rotate backwards, the driving motor 7 drives the screw nut mechanism to rotate, so that the nut drives the guide plate 2 and the supporting plate 11 to move upwards, when the guide plate 2 is in contact with the limit switch 13 again, the limit plate sends a signal to the controller 16, the controller 16 controls the driving motor 7 to stop working, and the guide plate 2 is kept at the initial position again. When the guide plate 2 moves from the initial position to a position where the level sensor 12 contacts the liquid surface, the encoder transmits the rotation angle of the output shaft of the drive motor 7 to the controller 16 in the form of the number of pulses, and the pitch of the lead screw 5 is known, so that the liquid surface height can be calculated more accurately. The liquid level height is measured again in the same time period in the next day, and the evaporation capacity of the liquid level on the day can be accurately calculated.
In the above embodiment, the cross-sectional shape of the guide groove is a V shape, a guide convex portion is formed between the two guide grooves, and a dovetail groove fitted with the guide convex portion is formed between the two guide portions of the guide plate; in other embodiments, the cross-sectional shape of the guide groove is U-shaped, a guide protrusion is formed between the two guide grooves, and a U-shaped groove adapted to the guide protrusion is formed between the two guide portions of the guide plate.
In the above embodiment, the top of the guide seat is fixed with the mounting seat, the mounting seat is U-shaped, the mounting seat includes the first transverse plate, the second transverse plate and the first longitudinal plate respectively connected to the first transverse plate and the second transverse plate, which are arranged in parallel at an interval, the driving motor is located between the first transverse plate and the second transverse plate, and the incremental encoder is fixed above the first transverse plate; in other embodiments, the mounting seat comprises a cylindrical barrel fixed on the top of the guide seat and a circular cover fixed on the top of the cylindrical barrel, the driving motor is positioned in the cylindrical barrel, and the incremental encoder is fixed on the circular cover.
In the above embodiment, the connecting frame is fixed at the rear part of the guide seat, the power supply comprises a storage battery and a solar panel electrically connected with the storage battery, and the storage battery is fixed on the connecting frame; in other embodiments, the connecting frame is not arranged, and the storage battery is directly fixed at the rear part of the guide seat; or the power source may comprise a lithium battery.
In the above embodiment, the support plate is L-shaped and includes a first plate section vertically arranged and a second plate section horizontally arranged, the first plate section is fixedly connected with the guide plate, and the second plate section is fixedly connected with the liquid level sensor; in other embodiments, a hydraulic lifting rod is arranged between the second plate section and the liquid level sensor.
In the above embodiment, the incremental encoder generates 3000 pulses every time the upper transmission part of the driving motor rotates for one circle; in other embodiments, the number of pulses generated by the incremental encoder can be arbitrarily determined for each revolution of the upper transmission portion of the drive motor.
Claims (6)
1. A liquid level evaporation measuring device is characterized by comprising:
a guide seat: the guide seat is arranged in an extending manner along the up-down direction, guide grooves extending along the up-down direction are formed in the left side and the right side of the guide seat, an accommodating cavity with an upward opening is formed in the middle of the guide seat, and a long hole which is communicated with the inside and the outside of the accommodating cavity and extends along the up-down direction is formed in the front of the accommodating cavity;
a screw nut mechanism: the screw rod is arranged in the accommodating cavity, extends along the up-down direction, and is provided with a nut in a threaded fit manner;
a guide plate: the nut is fixedly connected with the guide plate through a connecting rod, and the connecting rod penetrates through the long hole;
driving a motor: the incremental encoder is fixed at the top of the guide seat, an output shaft of the driving motor comprises a lower transmission part extending downwards and an upper transmission part extending upwards, the upper transmission part and the lower transmission part synchronously rotate, the lower transmission part of the driving motor is in transmission connection with the lead screw, and the upper transmission part of the driving motor is in transmission connection with the incremental encoder;
a support plate: the liquid level sensor is fixed on the guide plate, and the supporting plate is provided with a liquid level sensor;
a controller: the controller is fixedly arranged relative to the guide seat, is in control connection with the incremental encoder, is in control connection with the driving motor, and is in control connection with the liquid level sensor;
power supply: the power supply is electrically connected with the controller;
a limit switch: the front side of the guide seat is fixed and is in control connection with the controller;
a display device: the display device is connected with the controller in a control way and is used for displaying the liquid level evaporation height;
the contact between the guide plate and the limit switch is defined as an initial position, during measurement, the guide plate is located at the initial position, the driving motor rotates forwards to drive the screw nut mechanism to rotate, the nut drives the guide plate to move downwards to enable the liquid level sensor to move downwards, when the liquid level sensor is in contact with the liquid level, the liquid level sensor sends a signal to the controller to enable the controller to control the driving motor to rotate backwards, the nut drives the guide plate to move upwards, when the guide plate touches the limit switch again, the limit switch sends a signal to the controller, the controller controls the motor to stop working, the guide plate returns to the initial position, the liquid level height is measured again within a certain time interval, and the liquid level evaporation height can be calculated.
2. The liquid level evaporation measuring device as claimed in claim 1, wherein the cross-sectional shape of the guide groove is a V-shape, a guide protrusion is formed between the two guide grooves, and a dovetail groove fitted with the guide protrusion is formed between the two guide portions of the guide plate.
3. The liquid level evaporation measuring device as claimed in claim 1 or 2, wherein a mounting seat is fixed to the top of the guide seat, the mounting seat is U-shaped, the mounting seat comprises a first transverse plate, a second transverse plate and a first longitudinal plate, the first transverse plate and the second transverse plate are vertically connected with the first transverse plate and the second transverse plate in parallel and spaced up and down, the driving motor is located between the first transverse plate and the second transverse plate, and the incremental encoder is fixed above the first transverse plate.
4. The liquid level evaporation measuring device as claimed in claim 1 or 2, wherein a connecting frame is fixed at the rear part of the guide seat, the power supply comprises a storage battery and a solar cell panel electrically connected with the storage battery, and the storage battery is fixed on the connecting frame.
5. The liquid level evaporation measuring device as claimed in claim 1 or 2, wherein the support plate is L-shaped and comprises a first plate section and a second plate section, the first plate section is vertically arranged and is fixedly connected with the guide plate, and the second plate section is fixedly connected with the liquid level sensor.
6. A liquid level evaporation measuring apparatus as claimed in claim 1 or claim 2, wherein the incremental encoder generates 3000 pulses per revolution of the upper drive of the drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538103.5A CN112556784A (en) | 2020-12-23 | 2020-12-23 | Liquid level evaporation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538103.5A CN112556784A (en) | 2020-12-23 | 2020-12-23 | Liquid level evaporation measuring device |
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| CN112556784A true CN112556784A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011538103.5A Pending CN112556784A (en) | 2020-12-23 | 2020-12-23 | Liquid level evaporation measuring device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201672954U (en) * | 2010-04-26 | 2010-12-15 | 马鞍山市力翔机械自动化科技有限公司 | Electromechanical type high-precision liquid level measuring device |
| CN104198011A (en) * | 2014-09-19 | 2014-12-10 | 锡矿山闪星锑业有限责任公司 | Device and method for measuring liquid level of high-temperature melt in metallurgical furnace |
| CN206523201U (en) * | 2017-03-09 | 2017-09-26 | 陈晓宇 | A kind of evaporation capacity self-operated measuring unit |
| CN209118147U (en) * | 2019-01-02 | 2019-07-16 | 李静 | A kind of liquid-level control device for deaeration tower |
| CN211346789U (en) * | 2020-03-26 | 2020-08-25 | 河南安宏信息科技有限公司 | A New Automatic Evaporation Measuring Device |
-
2020
- 2020-12-23 CN CN202011538103.5A patent/CN112556784A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201672954U (en) * | 2010-04-26 | 2010-12-15 | 马鞍山市力翔机械自动化科技有限公司 | Electromechanical type high-precision liquid level measuring device |
| CN104198011A (en) * | 2014-09-19 | 2014-12-10 | 锡矿山闪星锑业有限责任公司 | Device and method for measuring liquid level of high-temperature melt in metallurgical furnace |
| CN206523201U (en) * | 2017-03-09 | 2017-09-26 | 陈晓宇 | A kind of evaporation capacity self-operated measuring unit |
| CN209118147U (en) * | 2019-01-02 | 2019-07-16 | 李静 | A kind of liquid-level control device for deaeration tower |
| CN211346789U (en) * | 2020-03-26 | 2020-08-25 | 河南安宏信息科技有限公司 | A New Automatic Evaporation Measuring Device |
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