CN214040254U - Intelligent material level measuring device suitable for working in severe environment - Google Patents
Intelligent material level measuring device suitable for working in severe environment Download PDFInfo
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- CN214040254U CN214040254U CN202120334732.XU CN202120334732U CN214040254U CN 214040254 U CN214040254 U CN 214040254U CN 202120334732 U CN202120334732 U CN 202120334732U CN 214040254 U CN214040254 U CN 214040254U
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Abstract
The utility model discloses an intelligent material level measuring device who is fit for working at adverse circumstances, including the control unit, power pack and mechanical type detecting element, the control unit and power pack communication connection, the outside at material container is set up to the control unit and power pack, mechanical type detecting element is including installing the steering assembly group at material container top, wire rope drawn forth from the power pack and being used for putting in the inside weight of material container, wire rope passes and is connected with the weight behind the steering assembly group, the power pack includes electric winch, stroke sensor and force sensor, electric winch is used for receiving and releasing wire rope, stroke sensor is used for measuring wire rope's displacement, force sensor is used for measuring wire rope's pulling force. The utility model discloses an intelligent material level measuring device can effectively overcome the environmental disturbance, realizes the material level measurement of relative accuracy to can effectively reduce the fault rate, improve on average the trouble-free time, reduce the routine maintenance work load.
Description
Technical Field
The utility model relates to a non-standard material level measurement field especially relates to an intelligent material level measuring device who is fit for working at adverse circumstances.
Background
In a large number of industrial processes, the processed material is usually stored in a specific container, the material level is a very critical measured and controlled parameter in the production process, and whether the material can be correctly and timely measured is very important for the safe and normal operation of the production process. At present, a plurality of material level measuring modes and corresponding measuring instruments are provided, the measuring instruments are generally arranged on the top of a container or are put in the container for use, and the measuring instruments are easily influenced by the environment and medium of a measured object. For example, a sampling pipeline of a contact type pressure transmitter is easy to block, so that the material level change cannot be timely and accurately reflected, and the daily maintenance workload is greatly increased; such as non-contact ultrasonic radar, it is easy to cause inaccurate measurement due to environmental factors such as water mist and dust. Under severe circumstances, not only the measurement performance of the measurement instrument itself may be affected, but also the electronic components inside the instrument may be affected or damaged, resulting in very high failures and short mean time between failures.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide an intelligent material level measuring device who is fit for working in adverse circumstances can effectively overcome the environmental disturbance, realizes the material level measurement of relative accuracy to can effectively reduce the fault rate, improve on average the trouble-free time, reduce the routine maintenance work load.
The purpose of the utility model is realized by adopting the following technical scheme:
the utility model provides a be fit for intelligent material level measuring device of working in adverse circumstances, includes the control unit, power pack and mechanical type detection unit, the control unit with power pack communication connection, the control unit reaches power pack sets up the outside at the material container, mechanical type detection unit is including installing at the material container top turn to the assembly pulley, follow wire rope that the power pack was drawn and be used for puting in the inside weight of material container, wire rope passes behind the turning to the assembly pulley with the weight is connected, power pack includes electric hoist engine, stroke sensor and tension sensor, electric hoist engine is used for receiving and releasing wire rope, stroke sensor is used for measuring wire rope's displacement, tension sensor is used for measuring wire rope's pulling force.
Furthermore, the power unit further comprises a protective shell and an outer shell fixed pulley positioned outside the protective shell, the electric winch, the stroke sensor and the tension sensor are all arranged inside the protective shell, and the steel wire rope is led out from the protective shell and then penetrates through the outer shell fixed pulley.
Furthermore, the power unit further comprises a fixed pulley block positioned inside the protective shell, the fixed pulley block comprises a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley, the electric winch comprises a servo motor and a winding drum in transmission connection with the servo motor, the steel wire rope is connected to the winding drum, and the steel wire rope sequentially penetrates through the first fixed pulley, the second fixed pulley, the stroke sensor, the third fixed pulley, the tension sensor and the fourth fixed pulley and then is led out to the outside of the protective shell.
Furthermore, the stroke sensor is a magnetic induction digital coding type stroke sensor or a photoelectric digital coding type stroke sensor, and is provided with a transmitter, and the transmitter is provided with an on-site display function and standard 4-20ma and 485 output ports.
Further, the power unit further comprises a zero position detection switch located outside the protective shell and used for detecting whether the travel of the steel wire rope returns to a zero position.
Further, the power unit is arranged on the ground.
Furthermore, the steering pulley block comprises a first steering fixed pulley and a second steering fixed pulley which are sequentially penetrated by the steel wire rope, and the first steering fixed pulley and the second steering fixed pulley are positioned at the same horizontal height.
Further, the control unit includes an on-site operation unit and a remote control unit.
Further, the local operation unit is provided with a change-over switch, a measurement button, a return button, a reset button and a display screen.
Further, the weight is in an inverted cone shape or a sectional cylindrical shape.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides an intelligent material level measuring device who is fit for working at adverse circumstances can effectively overcome the environmental disturbance, realizes the material level measurement of relative accuracy to can effectively reduce the fault rate, improve on average the trouble-free time, reduce the routine maintenance work load.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent level measuring device suitable for working in a severe environment according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power unit of the intelligent level measuring device shown in fig. 1.
In the figure: 11. an on-site operation unit; 12. a remote control unit; 2. a power unit; 20. a protective housing; 21. an electric hoist; 22. a first fixed pulley; 23. a second fixed pulley; 24. a travel sensor; 25. a third fixed pulley; 26. a tension sensor; 27. a fourth fixed pulley; 28. a fixed pulley outside the shell; 29. a zero detection switch; 31. a wire rope; 32. a first diverting fixed sheave; 33. a second diverting fixed sheave; 34. a weight; 4. a material container.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Refer to fig. 1 and 2. The embodiment of the utility model provides an intelligent material level measuring device who is fit for working at adverse circumstances, including the control unit, power pack 2 and mechanical type detection unit, the control unit and 2 communication connection of power pack, control unit and power pack 2 set up the outside at material container, mechanical type detection unit is including installing the steering assembly pulley at 4 tops of material container, wire rope 31 drawn forth from power pack 2 and be used for putting in the inside weight 34 of material container, wire rope 31 passes and is connected with weight 34 behind the steering assembly pulley, power pack 2 includes electric hoist 21, stroke sensor 24 and force sensor 26, electric hoist 21 is used for receiving and releasing wire rope 31, stroke sensor 24 is used for measuring wire rope 31's displacement, force sensor 26 is used for measuring wire rope 31's pulling force.
Specifically, the power unit 2 further includes a protective casing 20 and an outer casing fixed pulley 28 located outside the protective casing 20, the electric hoist 21, the stroke sensor 24 and the tension sensor 26 are all disposed inside the protective casing 20, and the wire rope 31 is led out from the protective casing 20 and then passes through the outer casing fixed pulley 28.
Specifically, the power unit 2 further includes a fixed pulley group located inside the protective housing 20, the fixed pulley group includes a first fixed pulley 22, a second fixed pulley 23, a third fixed pulley 25 and a fourth fixed pulley 27, the electric winch 21 includes a servo motor and a winding drum in transmission connection with the servo motor, the steel wire rope 31 is connected to the winding drum, and the steel wire rope 31 is led out to the outside of the protective housing 20 after sequentially passing through the first fixed pulley 22, the second fixed pulley 23, the stroke sensor 24, the third fixed pulley 25, the tension sensor 26 and the fourth fixed pulley 27.
Specifically, the second fixed sheave 23, the third fixed sheave 25, the fourth fixed sheave 27, and the case fixed sheave 28 are arranged in a horizontal direction.
Specifically, the travel sensor 24 is a magnetic induction digitally encoded travel sensor or an electro-optical digitally encoded travel sensor and is provided with a transducer with an in-situ display function and a standard 4-20ma, 485 output port.
Specifically, the power unit 2 further includes a zero position detection switch 29 located outside the protective casing 20 for detecting whether the stroke of the wire rope 31 is returned to the zero position.
In particular, the diverting pulley group comprises a first diverting fixed pulley 32 and a second diverting fixed pulley 33, which are in turn crossed by a steel wire rope, the first diverting fixed pulley 32 and the second diverting fixed pulley 33 being at the same level.
Specifically, the control unit includes a local operation unit 11 and a remote control unit 12.
Specifically, the in-place operation unit 11 is provided with a changeover switch, a measurement button, a return button, a reset button, and a display screen.
Specifically, the weight 34 is an inverted cone or a segmented cylinder.
Specifically, since the weight 34 and the wire rope 31 are thrown into the material container 4 through the diverting pulley set, the power unit 2 and the control unit, etc. do not need to be installed on the top or inside of the material container, for example, the power unit 2 and the control unit may be installed on the ground or in a centralized control room, etc., specifically, the power unit 2 and the local operation unit 11 may be installed on the ground or at other lower positions outside the material container 4, and the remote control unit 12 is located in the centralized control room.
The intelligent level measuring device of this embodiment has two measurement modes, i.e., an intermittent measurement mode in which the inverted cone-shaped weight is mainly used and a continuous measurement mode in which the segmented cylindrical weight is used, and this embodiment mainly describes the intermittent measurement (in-situ operation mode as described below).
The on-site operation unit of the intelligent material level measuring device provided by the embodiment of the utility model is provided with a change-over switch, a measuring button, a return button, a reset button and a display screen; the diverter switch is primarily used to switch the power unit between a local operating mode and a remote control mode:
1) in-place mode of operation: the measuring button is pressed, the heavy hammer descends, when the heavy hammer touches the material, the tension sensor senses the tension change (loosening) of the steel wire rope, the steel wire rope is stopped at the moment, the height from the top of the container to the material interface is displayed on the display screen (the height displayed by the display screen subtracted from the height of the whole material container is the actual material level of the material), the return button is pressed after the data is recorded, the steel wire rope is made to return to the initial position (the zero position travel switch action position), then the reset button is manually pressed, and zero position preparation is made for the next material level measurement (the reset purpose is to eliminate accumulated errors).
2) Remote control mode: the power unit receives a control instruction of a remote control module (or other upper computers) to perform the material level measuring action, and the details are not repeated herein.
The utility model discloses intelligent material level measuring device has following advantage:
1) because the steering pulley block arranged at the top of the material container, the steel wire rope thrown in the material container and the heavy hammer are all of pure mechanical structures and have no electronic and electrical components, and the relatively fragile power unit and the control unit are located on the ground or a centralized control room outside the material container, the influences of high-temperature, humidity, dust, corrosivity and other severe environments at the top and inside of the material container on the electronic and electrical components can be overcome, the phenomena of sampling blockage and the like can not occur, the working stability is greatly improved, relatively accurate material level measurement is realized, the failure rate of the control unit and the power unit can be effectively reduced, the average failure-free time is improved, and the daily maintenance workload is reduced.
2) Because the power unit, the control unit and the like can be arranged at lower positions such as the ground or in a centralized control room, the climbing height of maintainers can be avoided, the daily inspection work of the maintainers is facilitated, and the potential safety hazard of high-altitude operation of developing work at the top of the container is avoided.
3) Because this device is only thrown into the measured environment with simple weight, contacts the measured medium, does not take any electronic part, and the material of weight can carry out corresponding change according to the dielectric property of measurand, for example corrosive medium or environment can adopt the weight of being made by corrosion-resistant material, if the high temperature environment then can adopt the weight of high temperature resistant material making, can further reduce adverse circumstances like this and to the influence of life, further reduce the maintenance work load.
4) The intelligent characteristic, the apparatus has a key (automatic) to measure, measure regularly and the sensitivity triggers to start measuring, still have steel wire broken string to detect, weight over-range detects, stroke sensor and force sensor fault detection function to have the protection steel wire and be broken the function, the above-mentioned protection can give the code, lets the maintainer fix a position fast, seeks and gets rid of the trouble point.
5) The device has multiple interface functions, can be controlled by a computer at the upper stage, can provide 4-20MA measuring stroke data and tension measuring data of industrial standard, and the signals can provide a 485 communication interface, thereby simplifying system connection.
6) The stroke sensor of the device adopts a magnetic induction digital coding type stroke sensor or a photoelectric digital coding type stroke sensor, and can solve the problems of friction noise and short service life caused by a contact type stroke sensor.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a be fit for intelligent material level measuring device at adverse circumstances work, includes the unit is surveyed to the control unit, power pack and mechanical type, the control unit with power pack communication connection, its characterized in that: the mechanical detection unit comprises a steering pulley block arranged at the top of the material container, a steel wire rope led out from the power unit and a heavy hammer used for throwing in the material container, the steel wire rope penetrates through the steering pulley block and then is connected with the heavy hammer, the power unit comprises an electric winch, a stroke sensor and a tension sensor, the electric winch is used for winding and unwinding the steel wire rope, the stroke sensor is used for measuring the displacement of the steel wire rope, and the tension sensor is used for measuring the tension of the steel wire rope.
2. The intelligent level measuring device of claim 1, wherein: the power unit further comprises a protective shell and an outer shell fixed pulley positioned outside the protective shell, the electric winch, the stroke sensor and the tension sensor are all arranged inside the protective shell, and the steel wire rope is led out of the protective shell and then penetrates through the outer shell fixed pulley.
3. The intelligent level measuring device of claim 2, wherein: the power unit further comprises a fixed pulley block positioned inside the protective shell, the fixed pulley block comprises a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley, the electric winch comprises a servo motor and a winding drum in transmission connection with the servo motor, the steel wire rope is connected onto the winding drum, and the steel wire rope sequentially penetrates through the first fixed pulley, the second fixed pulley, the stroke sensor, the third fixed pulley, the tension sensor and the fourth fixed pulley and then is led out to the outside of the protective shell.
4. The intelligent level measuring device of claim 1, wherein: the travel sensor is a magnetic induction digital coding type travel sensor or a photoelectric digital coding type travel sensor, and is provided with a transmitter, and the transmitter is provided with an on-site display function and standard 4-20ma and 485 output ports.
5. The intelligent level measuring device of claim 2, wherein: the power unit further comprises a zero position detection switch positioned outside the protective shell and used for detecting whether the travel of the steel wire rope returns to a zero position.
6. The intelligent level measuring device of claim 1, wherein: the power unit is arranged on the ground.
7. The intelligent level measuring device of claim 1, wherein: the steering pulley block comprises a first steering fixed pulley and a second steering fixed pulley which are sequentially penetrated by the steel wire rope, and the first steering fixed pulley and the second steering fixed pulley are positioned at the same horizontal height.
8. The intelligent level measuring device of claim 1, wherein: the control unit includes a local operation unit and a remote control unit.
9. The intelligent level measuring device of claim 8, wherein: the local operation unit is provided with a change-over switch, a measurement button, a return button, a reset button and a display screen.
10. The intelligent level measuring device as claimed in any one of claims 1-9, wherein: the weight is in an inverted cone shape or a sectional cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120334732.XU CN214040254U (en) | 2021-02-05 | 2021-02-05 | Intelligent material level measuring device suitable for working in severe environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120334732.XU CN214040254U (en) | 2021-02-05 | 2021-02-05 | Intelligent material level measuring device suitable for working in severe environment |
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| CN214040254U true CN214040254U (en) | 2021-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279390A (en) * | 2021-12-07 | 2022-04-05 | 金陵科技学院 | Iron ore underground material pit depth measuring device and working mode |
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2021
- 2021-02-05 CN CN202120334732.XU patent/CN214040254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279390A (en) * | 2021-12-07 | 2022-04-05 | 金陵科技学院 | Iron ore underground material pit depth measuring device and working mode |
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