CN110879094A - Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device - Google Patents
Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device Download PDFInfo
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- CN110879094A CN110879094A CN201911343411.XA CN201911343411A CN110879094A CN 110879094 A CN110879094 A CN 110879094A CN 201911343411 A CN201911343411 A CN 201911343411A CN 110879094 A CN110879094 A CN 110879094A
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- displacement sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
- G01F23/42—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using mechanically actuated indicating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a floating ball-double pull wire type liquid level and flow velocity online monitoring device, which relates to the technical field of drainage pipeline liquid level and flow velocity monitoring equipment and comprises the following components: the two frames are symmetrically arranged on the inner wall of the inspection well; the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box; the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable; the two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through a first pull rope and a second pull rope; the device is convenient to use, measures accurately, can realize the real-time supervision of the liquid level and the velocity of flow of liquid in the drainage pipe.
Description
Technical Field
The invention belongs to the technical field of drainage pipeline liquid level flow rate monitoring equipment, and particularly relates to a floating ball-double-pull-wire type liquid level flow rate online monitoring device.
Background
The interior environment of the drainage pipeline is harsh, the liquid flow condition is changeable, and the use requirement for the pipeline flowmeter is relatively strict, and the method mainly comprises the following steps: the anti-interference capability is strong, and the interference of impurities in the liquid can be resisted; the drainage pipeline has narrow space, the places for installation mainly comprise various wells, and the liquid level flow velocity instrument has low requirement on the installation space and is easy to fix; the use cost is low, the large-scale popularization can be realized, and besides the price of the equipment, the installation cost and the later maintenance cost also need to be considered; the remote data transmission and real-time online monitoring can be carried out. In contrast to the above requirements, all the existing flowmeters have various defects and cannot meet the use requirements. Such as: the rotor type flow velocity meter is easy to hang garbage when in use; the Doppler flowmeter has strong waterproof and anti-fouling capability, but has high cost and cannot be popularized in a large area.
Disclosure of Invention
The invention aims to provide a floating ball-double-pull-wire type liquid level and flow rate online monitoring device aiming at the defects in the prior art.
In order to achieve the above object, the present invention provides a floating ball-double pull line type liquid level and flow rate online monitoring device, comprising:
the two frames are symmetrically arranged on the inner wall of the inspection well;
the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;
the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;
and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.
Optionally, wall hanging screws are arranged on the rear sides of the two frames.
Optionally, a fixed pulley is disposed inside the frame below each of the first rope displacement sensor and the second rope displacement sensor, and the first rope and the second rope are connected between the floating ball and the first rope displacement sensor and the second rope displacement sensor by bypassing the fixed pulley.
Optionally, the first mainframe box and the second mainframe box are both sealed waterproof boxes.
Optionally, the central processing unit is a single chip microcomputer unit.
Optionally, the communication module is in communication connection with a remote terminal.
Optionally, the communication module is a 4G module, and the remote terminal is a remote PC terminal.
Optionally, the frame is made of an aluminum profile.
Optionally, two ends of the floating ball are symmetrically provided with a pull rope fixing nut, the floating ball is an elliptical hollow sphere, and the depth of the part of the floating ball immersed below the liquid level is 1/3-1/2 of the diameter of the floating ball.
Optionally, the first mainframe box further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, wherein the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.
The invention provides a floating ball-double-pull-wire type liquid level and flow rate online monitoring device, which has the beneficial effects that: the device is provided with two stay cord displacement sensors, the two stay cord displacement sensors are respectively connected to two ends of the floating ball through the stay cords, the two stay cord displacement sensors are pulled through the position change of the floating ball on the liquid level, and then the liquid level and the flow rate of liquid in the drainage pipeline are calculated through the stay cord length reading measured by the two stay cord displacement sensors and the geometric relation between the stay cords, so that the device is convenient to use and accurate in measurement; the device has the advantages that the communication module is arranged, the monitoring result can be transmitted to the remote terminal in real time, remote monitoring is achieved, the structure is simple, the installation is convenient, and the cost is saved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.
Fig. 2 shows a schematic installation diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.
Fig. 3 shows an electric control schematic diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.
Fig. 4 shows an overall circuit schematic diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.
Description of reference numerals:
1. a frame; 2. an inspection well; 3. a first main chassis; 4. a second main chassis; 5. a central processing unit; 6. a communication module; 7. a cable; 8. a first pull cord displacement sensor; 9. a second pull rope displacement sensor; 10. a floating ball; 11. a first pull cord; 12. a second pull cord; 13. wall hanging screws; 14. a fixed pulley; 15. a single chip unit; 16. a remote terminal; 17. a 4G module; 18. a remote PC terminal; 19. fixing a nut; 20. a power supply component; 21. a zero setting switch; 22. an electromagnetic relay interrupt switch; 23. a power source; 24. a power switch; 25. a multi-path power supply distribution board; 26. a voltage division module; 27. an electromagnetic relay; 28. a first voltage reduction module; 29. a second voltage reduction module; 30. RS232 changes to TTL module; 31. arranging a female end; 32. GND1 bus terminal; 33. a first row of nuts; 34. a second row of nuts; 35. a third row of nuts; 36. a fourth row of nuts; 37. GND2 bus terminal; 38. a first resistor; 39. a second resistor.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a floating ball-double-stay-wire type liquid level and flow rate on-line monitoring device, which comprises:
the two frames are symmetrically arranged on the inner wall of the inspection well;
the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;
the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;
and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.
Specifically, the cable is provided with a redundant part in the second mainframe box so as to be suitable for inspection wells with different sizes, and a sealing ring is arranged on the outer side of the cable and detachably connected with the second mainframe box; the floater floats on the interior liquid level of drainage pipe that awaits measuring, along with the rising and the decline of liquid level reciprocate, through first stay cord and the first stay cord displacement sensor of second stay cord pulling and second stay cord displacement sensor, the extension length of first stay cord displacement sensor and the real-time measurement stay cord of second stay cord displacement sensor, and carry data signal to central processing unit in, central processing unit is according to stay cord length and geometric relation, can calculate the liquid level height and the velocity of flow of liquid in the drainage pipe, transmit monitoring result to remote terminal through communication module, convenient receipt.
In one example, the two frame rear sides are each provided with a wall hanging screw.
Particularly, the arrangement of the wall hanging screw facilitates the fixing and the dismounting of the device in the inspection well.
In one example, a fixed pulley is arranged inside the frame below the first rope displacement sensor and the second rope displacement sensor, and the first rope and the second rope are connected between the floating ball and the first rope displacement sensor and the second rope displacement sensor by bypassing the fixed pulley.
Specifically, the fixed pulley is arranged to guide the pull rope, so that friction force is reduced, and monitoring precision is improved.
In one example, the first and second main cabinets are sealed waterproof cabinets.
Specifically, the first mainframe box and the second mainframe box play a role in protecting internal components.
In one example, the central processing unit is a single chip unit.
In one example, the communication module is communicatively coupled to a remote terminal.
In one example, the communication module is a 4G module, and the remote terminal is a remote PC terminal.
In one example, the frame is made of aluminum profile.
In one example, the two ends of the floating ball are symmetrically provided with the pull rope fixing nuts, the floating ball is an oval hollow sphere, and the depth of the part of the floating ball submerged below the liquid level is 1/3 to 1/2 of the diameter of the floating ball.
Specifically, the first pull rope and the second pull rope at two ends of the floating ball can be conveniently connected and detached through the matching of the screw and the fixing nut.
In other examples, the floating ball can also be a hollow ball or a hollow ball with a conical tail, and whether the floating ball is the hollow ball or the hollow ball with the conical tail, the part of the floating ball submerged below the liquid level is not more than 1/2 of the diameter size of the floating ball, so that floating objects or garbage on the liquid level can be prevented from being hung on the floating ball, and the monitoring precision is prevented from being influenced.
In one example, the first main cabinet further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, wherein the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.
Examples
As shown in fig. 1 to 4, the present invention provides a floating ball-double pull line type liquid level and flow rate online monitoring device, comprising:
the two frames 1 are symmetrically arranged on the inner wall of the inspection well 2;
a first mainframe box 3 and a second mainframe box 4 which are respectively arranged in the two frames 1, wherein a central processing unit 5 and a communication module 6 are arranged in the first mainframe box 3, and a cable 7 is arranged in the second mainframe box 4;
a first pull rope displacement sensor 8 and a second pull rope displacement sensor 9 which are respectively arranged at the lower sides of the first main case 3 and the second main case 4, wherein the first pull rope displacement sensor 8 is electrically connected with the central processing unit 5, and the second pull rope displacement sensor 9 is electrically connected with the central processing unit 5 through a cable 7;
and two ends of the floating ball 10 are respectively connected with the first pull rope displacement sensor 8 and the second pull rope displacement sensor 9 through a first pull rope 11 and a second pull rope 12.
In this embodiment, wall hanging screws 13 are arranged on the rear sides of the two frames 1.
In this embodiment, a fixed pulley 14 is provided inside the frame 1 below each of the first rope displacement sensor 8 and the second rope displacement sensor 9, and the first rope 11 and the second rope 12 are connected between the floating ball 10 and the first rope displacement sensor 8 and the second rope displacement sensor 9 by passing around the fixed pulley 14.
In this embodiment, the first main cabinet 3 and the second main cabinet 4 are sealed waterproof cabinets.
In this embodiment, the central processing unit 5 is a single chip unit 15.
In this embodiment, the communication module 6 is communicatively connected to a remote terminal 16.
In this embodiment, the communication module 6 is a 4G module 17, and the remote terminal 16 is a remote PC terminal 18.
In the present embodiment, the frame 1 is made of aluminum profile.
In this embodiment, the two ends of the floating ball 10 are symmetrically provided with the pull rope fixing nuts 19, the floating ball 10 is an elliptical hollow sphere, and the depth of the part of the floating ball 10 submerged below the liquid level is 1/3 to 1/2 of the diameter of the floating ball 10.
In this embodiment, the first main chassis 3 further includes a power supply module 20, a zero switch 21, and an electromagnetic relay interrupt switch 22, where the zero switch 21 is electrically connected to the power supply module 20 and the central processing unit 5, and the electromagnetic relay interrupt switch 22 is electrically connected to the power supply module 20 and the central processing unit 5.
In this embodiment, the main cabinet further includes: the power supply 23, the power switch 24, the multi-path power distribution board 25, the voltage division module 26, the electromagnetic relay 27, the first voltage reduction module 28, the second voltage reduction module 29, the RS232 to TTL module 30, the row bus terminal 31, the GND1 row bus terminal 32, the first row bus 33, the second row bus 34, the third row bus 35, the fourth row bus 36, the GND2 row bus terminal 37, the first resistor 38 and the second resistor 39.
The positive pole of the power supply 23 is connected with the power switch 24, the power switch 24 is connected with the positive pole of the multi-path power supply distribution plate 25, and the negative pole of the power supply 23 is connected with the negative pole of the multi-path power supply distribution plate 25 and used for supplying power to the whole circuit control system.
The multi-path power supply distribution board 25 is divided into 5 paths of connection wires, the first path VCC is connected with the positive electrode of the voltage division module 26, and the GND is connected with the negative electrode of the voltage division module 26; the second path VCC is connected with the positive input end of the first voltage reduction module 28, and GND is connected with the negative input end of the first voltage reduction module 28; the third path VCC is connected with the positive input end of the second voltage reduction module 29, and GND is connected with the negative input end of the second voltage reduction module 29; the fourth path VCC is connected with the anode of the 4G module 17, and the GND is connected with the cathode of the 4G module 17; the fifth path VCC is connected with the bus terminal 31, and the GND is connected with the bus terminal 37 of the GND 2; multiple equal voltage power supplies can be obtained.
The OUT end of the voltage division module 26 is connected with the A3 port of the single chip microcomputer unit 15, and the GND end is connected with the GND1 row bus end 32. For monitoring the remaining capacity of the power supply 23
The OUT + end of the first voltage-reducing module 28 is connected with the positive electrode of the power supply of the single chip microcomputer unit 15, and the OUT-end of the first voltage-reducing module is connected with the negative electrode of the power supply of the single chip microcomputer unit 15; the 12V power supply supplies power for the single chip microcomputer unit 15.
The output of the second voltage-reducing module 29 is divided into four paths, wherein the OUT + of the first path is connected with the VCC end of the electromagnetic relay 27, and the OUT-is connected with the GND end of the electromagnetic relay 27; the OUT + of the second path is connected with a VCC end of the RS 232-to-TTL module 30, and the OUT-is connected with a GND end of the RS 232-to-TTL module 30; the OUT + end of the third path is connected with the anode of the electromagnetic relay interrupt switch 22; the OUT + end of the fourth path is connected with the anode of a zero switch 21; a 5v power supply is available to power the electromagnetic relay 27, the electromagnetic relay interrupt switch 22, the zero switch 21 and the RS232 to TTL module 30.
The normally open end and the common end of the electromagnetic relay 27 are output in two paths, the first common end is connected with the bus terminal 31, and the normally open end is connected with the VCC end of the first pull rope displacement sensor 8; the second common end is connected with the female terminal 31, and the normally open end is connected with the VCC end of the second pull rope displacement sensor 9; the IN1 end of the electromagnetic relay 27 is connected with the No. 8 port of the singlechip microcomputer unit 15, and the IN2 end of the electromagnetic relay 27 is connected with the No. 9 port of the singlechip microcomputer unit 15; the controller is used for controlling the power on and power off of the first pull rope displacement sensor 8 and the second pull rope displacement sensor 9, and the electric quantity of a power supply is saved.
The TX port of the RS232 to TTL module 30 is connected to the TX0 port of the chip unit 15, the RX port of the RS232 to TTL module 30 is connected to the RX0 port of the chip unit 15, the VCC port of the RS232 to TTL module 30 is connected to the OUT + terminal of the second voltage-decreasing module 29, and the GND port of the RS232 to TTL module 30 is connected to the OUT-terminal of the second voltage-decreasing module 29.
The OUT end of the first pull rope displacement sensor 8 is connected with the port A1 of the single chip microcomputer unit 15, and the GND end is connected with the GND2 row female end 37; the liquid level and the flow rate can be converted through the outlet length of the pull rope.
The OUT end of the second pull rope displacement sensor 9 is connected with the port A2 of the single chip microcomputer unit 15, and the GND end is connected with the GND2 row female end 37; the liquid level and the flow rate can be converted through the outlet length of the pull rope.
The positive electrode of the zero setting switch 21 is connected with the OUT + end of the second voltage reduction module 29, and the negative electrode of the zero setting switch is connected with the first row of bus bars 33; the zero switch 21 can zero the measured data at any position, each time the mounting position cannot be guaranteed to be the same.
The positive electrode of the electromagnetic relay interrupt switch 22 is connected with the OUT + end of the second voltage reduction module 29, and the negative electrode of the electromagnetic relay interrupt switch is connected with the fourth row of bus 36; for controlling the on/off of the electromagnetic relay 27.
The first row of bus bars 33 outputs two paths, one path is connected to the port No. 3 of the monolithic unit 15, and the other path is connected to the first resistor 38.
The fourth row of bus 36 outputs two paths, one path is connected to the port No. 2 of the single chip unit 15, and the other path is connected to the second resistor 39.
The second row of bus bars 34 output GND1 row bus bar terminals 32.
The output of the third row of the female terminals 35 is connected with the GND1 row of the female terminals 32.
GND1 row bus terminal 32 connects to the GND port of the chip unit 15.
In summary, when the floating ball-double-pull-wire type online liquid level and flow rate monitoring device provided by the invention is used, the device is symmetrically fixed on the inner wall of the inspection well 2 through the wall hanging screws 13 at the upper ends of the two frames 1, and the second pull rope displacement sensor 9 is electrically connected with the single chip microcomputer unit 15 through the cable 7.
The liquid level measuring process comprises the following steps: the power switch 24 is pressed down to start the monitoring device, the floating ball 10 is manually pulled to the bottommost part of the drainage pipeline, the zero setting switch 21 is pressed down, and the current data of the two stay cord displacement sensors are set to be zero. The floating ball 10 is loosened, so that the floating ball 10 floats on the liquid level, the liquid level rises, the floating ball 10 in the water moves upwards along with the liquid level, the extension lengths of the first pull rope 11 and the second pull rope 12 connected with the floating ball 10 are reduced, the analog signals of the first pull rope displacement sensor 8 and the second pull rope displacement sensor 9 are input into the singlechip unit 15, and the relation X between the liquid level height and the lengths of the two pull ropes is 0.5[ (L & lt & gt)1 2-L2 2)/(W-180)+W-180],
H-H' -L + H, H is the depth of the floating ball 10, H is the liquid level height, L1Is the real-time reading of the first pull rope displacement sensor 8, L2The real-time reading is carried out on the second stay rope displacement sensor 9, W is the distance between the wire outlets of the two stay rope displacement sensors, H' is the distance between the wire outlets of the two stay rope displacement sensors and the bottommost part of the drainage pipeline, and the liquid level height output in real time is converted in the single chip microcomputer unit 15. Liquid level height data are uploaded to the cloud end through the unique ID address of the 4G module 17, the 4G module 17 creates a virtual serial port, and the remote PC end 18 monitors the inside of the drainage pipeline in real time in an online manner in a manner of reading the virtual serial portThe height of the liquid level.
And (3) flow velocity measurement process: pressing a power switch 24, manually pulling the floating ball 10 to the bottommost part of the drainage pipeline, pressing a zero setting switch 21, and setting the current data of the two stay cord displacement sensors to be zero; the float 10 is released so that the float 10 floats on the liquid surface. When liquid in the drainage pipeline flows, the floating ball 10 is pushed by the liquid flow to move in the flow velocity direction, and the extending lengths of the first pull rope 11 and the second pull rope 12 connected with the floating ball 10 are changed. Analog signals of the first pull rope displacement sensor 8 and the second pull rope displacement sensor 9 are input into the single chip microcomputer unit 15, the thrust force applied to the floating ball 10 is balanced with the horizontal component force of the forces applied to the two pull ropes, and the thrust force applied to the floating ball 10 is firstly obtained through conversion of the single chip microcomputer unit 15
F is the thrust exerted on the ball 10, L1Is the real-time reading of the first pull rope displacement sensor 8, L2The second pull rope displacement sensor 9 is used for reading in real time, and the relationship F between the thrust and the flow velocity is 0.5 Crho v2A and C are dimensionless resistance coefficients, v is the liquid flow velocity, A is the flow area of the floating ball 10, rho is the fluid density, and the output flow velocity is converted in the single chip microcomputer unit 15. The unique ID address of the 4G module 17 uploads the flow rate data to the cloud, the 4G module 17 creates a virtual serial port, and the remote PC end 18 monitors the flow rate of liquid in the drainage pipeline in real time in an online manner in a manner of reading the virtual serial port.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a floater-two stay-supported liquid level velocity of flow on-line monitoring device which characterized in that, the device includes:
the two frames are symmetrically arranged on the inner wall of the inspection well;
the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;
the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;
and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.
2. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein wall-hanging screws are arranged on the rear sides of the two frames.
3. The floating ball-double-pull-wire type online liquid level and flow rate monitoring device as claimed in claim 1, wherein a fixed pulley is disposed inside the frame below the first pull rope displacement sensor and the second pull rope displacement sensor, and the first pull rope and the second pull rope are connected between the floating ball and the first pull rope displacement sensor and the second pull rope displacement sensor by bypassing the fixed pulley.
4. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the first main box and the second main box are sealed waterproof boxes.
5. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the central processing unit is a single chip microcomputer unit.
6. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the communication module is communicatively connected with a remote terminal.
7. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 6, wherein the communication module is a 4G module, and the remote terminal is a remote PC terminal.
8. The floating ball-double stay wire type liquid level and flow rate on-line monitoring device as claimed in claim 1, wherein the frame is made of aluminum profile.
9. The floating ball-double-pull wire type on-line liquid level and flow rate monitoring device as claimed in claim 1, wherein the two ends of the floating ball are symmetrically provided with pull rope fixing nuts, the floating ball is an oval hollow ball, and the depth of the part of the floating ball submerged below the liquid level is 1/3-1/2 of the diameter of the floating ball.
10. The floating ball-double pull wire type online liquid level and flow rate monitoring device as claimed in claim 1, wherein the first main box further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343411.XA CN110879094A (en) | 2019-12-24 | 2019-12-24 | Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343411.XA CN110879094A (en) | 2019-12-24 | 2019-12-24 | Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device |
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| CN110879094A true CN110879094A (en) | 2020-03-13 |
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| CN201911343411.XA Pending CN110879094A (en) | 2019-12-24 | 2019-12-24 | Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515245A (en) * | 2022-02-21 | 2022-05-20 | 广东固特超声股份有限公司 | Nasal cavity moistening, inflammation diminishing and sterilizing device with refreshing function |
| CN114894234A (en) * | 2022-03-30 | 2022-08-12 | 泰州学院 | Dam osmotic pressure seepage flow monitoring devices for hydraulic engineering |
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2019
- 2019-12-24 CN CN201911343411.XA patent/CN110879094A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515245A (en) * | 2022-02-21 | 2022-05-20 | 广东固特超声股份有限公司 | Nasal cavity moistening, inflammation diminishing and sterilizing device with refreshing function |
| CN114515245B (en) * | 2022-02-21 | 2023-08-08 | 广东固特超声股份有限公司 | Nasal cavity moistening, anti-inflammatory and sterilizing device with refreshing function |
| CN114894234A (en) * | 2022-03-30 | 2022-08-12 | 泰州学院 | Dam osmotic pressure seepage flow monitoring devices for hydraulic engineering |
| CN114894234B (en) * | 2022-03-30 | 2024-02-20 | 泰州学院 | Dam osmotic pressure seepage flow monitoring device for hydraulic engineering |
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