CN107270991A - A kind of water-level gauge Luminous scale - Google Patents
A kind of water-level gauge Luminous scale Download PDFInfo
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- CN107270991A CN107270991A CN201710101718.3A CN201710101718A CN107270991A CN 107270991 A CN107270991 A CN 107270991A CN 201710101718 A CN201710101718 A CN 201710101718A CN 107270991 A CN107270991 A CN 107270991A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 102000008847 Serpin Human genes 0.000 description 1
- 108050000761 Serpin Proteins 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003001 serine protease inhibitor Substances 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D25/00—Control of light, e.g. intensity, colour or phase
- G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of water-level gauge Luminous scale, Luminous scale is made up of light source controller and graduated scale；Light source controller includes several scale value display modules, control tone pitch and module with an automatic light meter, hand-operating light module, power module composition；Circuit structure is added on water-level gauge scale, spliced using charactron element circuit plate, there is the Primary Component such as charactron and serioparallel exchange and the control chip of serial transmission on charactron element circuit plate, after splicing charactron element circuit plate, splice one piece of control board at the top of it, have micro-control unit, the operation Primary Component such as button and functional indicator light in control board, brightness it is continuous and can automatic or manual regulation, so as to reach observation scale clearly purpose.Online any change display scale value, it is to avoid change scale because changing scale value, greatly reduce maintenance, effectively saved maintenance cost, with obvious economic benefit and social benefit.
Description
The technical field is as follows:
the invention discloses a luminous scale for a water level gauge, which is an improvement on the scale structure of the traditional boiler water level gauge and belongs to the technical field of boiler safety detection devices.
Background art:
the staff gauge of the water level gauge is easily influenced by ambient light, the observation effect is not ideal and is a problem which is difficult to overcome all the time, particularly, the staff gauge of the high-temperature high-pressure boiler water level gauge is easy to deposit dust under the environment of high temperature and high dust, and practices prove that the staff gauge observation effect can be influenced by the brightness change of the operation environment of the high-temperature high-pressure boiler water level gauge. Meanwhile, the observation scale is influenced after dust is accumulated due to long-time operation in high dust, and if dust is not removed timely and the environment changes in brightness, judgment of operators on the water level of the steam drum is seriously influenced. In addition, when the operator considers that the water level does not match the scale indicating value, the operator can adjust the water level indicating value and only change the scale, so that the operator can continue to use the water level indicating value.
The existing water level gauge (see fig. 1) is made of thin aluminum plate, the background is black, and the scale lines and the numerical values are white. Although the conventional scale structure of the water level gauge can meet the measurement of the water level of a steam drum, the scale structure is easy to accumulate dust in a high-dust environment, and the fading phenomenon makes the scale structure easy to be influenced by the brightness change of the environment. At the same time, the scale indication value cannot be adjusted. If the ash is not removed timely, the scale lines and the numerical values of the scale can not be observed clearly.
The existing treatment method for the unclear indication of a water level gauge scale in the long-term operation of a boiler comprises the following steps: periodically removing ash on the surface of the scale; installing illumination near the water level gauge to enable light to be appropriate; or the water level meter is completely covered by the light shield directly, and the light is kept unchanged by adding illumination in the light shield, so the processing method has poor effect because the brightness degree and the observation distance of the light are not easy to adjust. Meanwhile, when the easy-wearing parts of the water level gauge are replaced, the light shield needs to be moved, and inconvenience is brought to operation.
The existing processing method for confirming that the indicated value of the scale is deviated when the indicated water level of the water level gauge scale is not consistent with the actual water level in the long-term operation of a boiler is as follows: the staff gauge is detached from the front cover of the water gauge, and a staff gauge is manufactured again by a water gauge manufacturing factory and then is remounted after being sent to the site. Although the observation of the drum water level can be satisfied finally, the observation of the water level before replacement is affected due to the limitation of the manufacturing period. Meanwhile, the maintenance expense is increased; if the field working condition changes greatly and the scale indicating value is adjusted more frequently, the maintenance times and expense are greatly increased.
The invention content is as follows:
the invention discloses a luminous scale of a boiler water level meter, which solves the problems that the ash deposition observation scale of the traditional water level meter scale is fuzzy, the indicated value of the scale is easily influenced by the brightness change of the environment and the indicated value of the scale cannot be adjusted in time.
The invention relates to a luminous scale for a water level gauge, which is arranged on a gauge body through a fixed frame and a front cover; the method is characterized in that: the luminous scale is composed of a light source controller and a scale;
the light source controller comprises a plurality of scale value display modules, a control value adjusting and automatic light adjusting module, a manual light adjusting module and a power supply module; wherein,
the eight-bit parallel output end of the shift register IC1-1 of the scale value display module is respectively connected with the input end of the nixie tube through a current-limiting resistor, so that data is transmitted to the nixie tube for display; the clock input end of the shift register IC1-1 and the clock input end of the storage register are respectively connected with the clock input end of the other shift register IC2-1 and the clock input end of the storage register, so that display synchronization is realized; the main reset ends of the shift registers IC1-1 and IC2-1 are connected and are connected with VCC; the main reset end, the output effective end, the clock input end and the clock input end of the shift register IC1-1 and the IC2-1 are correspondingly connected with the main reset end, the output effective end, the clock input end and the clock input end of the storage register of the shift register IC1-1 and the IC2-1 in the scale value display module at the upper stage and the lower stage respectively through connecting terminals J1-1 and J2-1; an eight-bit parallel output pin of the shift register IC2-1 is respectively connected with the input end of the nixie tube through a current-limiting resistor, so that the data is transmitted to the nixie tube for display; the serial data input end SER of the shift register IC1-1 is connected with the serial data output end of the shift register IC2-1 in the previous-stage scale value display module through a connecting terminal J1-1, the serial data output end of the shift register IC1-1 is connected with the serial data input end SER of the shift register IC2-1, the serial data output end of the shift register IC2-1 is connected with the serial data input end SER of the shift register IC1-1 in the next-stage scale value display module through a connecting terminal J2-1, and data progressive transmission is achieved; the common ends COM of the nixie tubes S1-1 and S2-1 are connected and are connected with the adjusting output end TJ of the switch in the manual dimming module through connecting terminals J1-1 and J2-1 to realize the output of the switch; by analogy, a plurality of scale value display modules are connected, and the next scale value display module is connected with the wiring terminal J2-1 of the previous scale value display module through the wiring terminal J1-1, so that the scale value display modules are connected step by step; the first scale value display module is connected with a connection terminal J2 of the control dimming value and automatic dimming module through a connection terminal J1-1, so that the connection with the control dimming value and automatic dimming module is realized.
The control dimming and automatic dimming module comprises a light intensity sensor IC3, a digital-to-analog conversion module IC4 and an operational amplifier IC 5; a data output pin of the main processor MCU is correspondingly connected with a data input pin of the digital-to-analog conversion module, and a chip selection pin and a forwarding control pin of the digital-to-analog conversion module IC4 are connected with a data output pin of the main processor MCU; a write-in pin of the digital-to-analog conversion module IC4 is connected with a write gating pin of the main processor MCU; a reference voltage pin of the digital-to-analog conversion module IC4 is connected with a potentiometer and a capacitor; the current output pins of the digital-to-analog conversion module IC4 are respectively connected with the operational amplifier IC 5; the light intensity sensor IC3 collects ambient illuminance signals, an I2C bus interface of the light intensity sensor IC3 is respectively connected with a data input end of a main processor MCU, illuminance information is transmitted to the main processor MCU to be processed, and a digital-to-analog conversion module IC4 is driven to realize that the brightness of the light-emitting scale is automatically adjusted according to the brightness of the environment.
The manual dimming module is positioned in the light source controller to realize remote adjustment of the brightness of the light-emitting scale; an output pin of the manual dimming module is connected with the switch, so that the function switching of manually adjusting the brightness of the nixie tube is realized; the control value adjusting and automatic light adjusting module and the scale value display module are respectively connected with a switch, so that the signal output of manually and automatically adjusting the brightness of the nixie tube is realized; an operational amplifier IC5 in the control dimming value and automatic dimming module is connected with the manual dimming module; the switch selects manual and automatic dimming, and the default mode is automatic.
The invention has the advantages that: the structure of the traditional scale of the double-color water level meter is changed; the circuit structure is added on the water level gauge scale, the nixie tube unit circuit boards are spliced, key devices such as nixie tubes, control chips for serial-parallel conversion and serial transmission and the like are arranged on the nixie tube unit circuit boards, after the nixie tube unit circuit boards are spliced, a control circuit board is spliced at the top of the nixie tube unit circuit boards, key devices such as a micro control unit (a single-chip microcomputer), operation keys, function indicating lamps and the like are arranged on the control circuit board, the brightness is continuous, automatic or manual adjustment can be achieved, and the purpose of observing the clear water level gauge is achieved. Moreover, the scale value can be changed and displayed at will on line (the difference value of adjacent scales is kept unchanged), the scale is prevented from being changed due to the change of the scale value, the maintenance amount is greatly reduced, the maintenance cost is effectively saved, and the method has obvious economic benefit and social benefit.
Description of the drawings:
FIG. 1 is a schematic structural view of a conventional scale of a water level gauge;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a functional block diagram of the present invention;
FIG. 5 is a schematic diagram of a scale value display module circuit;
FIG. 6 is a circuit diagram of a control dimming and automatic dimming module;
FIG. 7 is a schematic circuit diagram of a manual dimming module;
in the figure: 1. a watch body; 2. a front cover; 3. a graduated scale; 4. a scale value display module; 5, a luminous scale; 6. a fixed mount; 7. a control dimming value and automatic dimming module; 8. a light source controller; 9. a manual dimming module; 10. and a power supply module.
The specific implementation mode is as follows:
in the invention (as shown in fig. 2 and fig. 3), a luminous scale 5 is arranged on a watch body 1 through a fixed frame 6 and a front cover 2, and the luminous scale 5 is electrically connected with a light source controller 8; the luminous scale 5 is composed of a plurality of scale value display modules 4, a control value adjusting and automatic light adjusting module 7 and a scale 3.
Fig. 4 is a schematic block diagram of the circuit of the present invention, which includes a scale value display module, a control value adjusting and automatic light adjusting module, a manual light adjusting module, and a power supply module.
As shown in FIG. 5, the output pins O0-O7 of the shift register IC1-1 of the scale display module 4 are connected to the input pins (a-dp) of the nixie tube S1-1 through current limiting resistors (R1-1-R8-1), and the serial data input SER of the shift register IC1-1 is connected to the 3 pins of the connecting terminal J1-1. The serial data out pin Q7 of the shift register IC1-1 is connected to the serial data in SER pin of another shift register IC 2-1. The clock input pin SRCLK of the shift register IC1-1 and the clock input end RCLK of the memory register are respectively connected with the clock input pin SRCLK of the other shift register IC2-1 and the clock input end RCLK of the memory register, and are connected with the 4 pins and 5 pins of the terminal J1-1 and the 4 pins and 5 pins of the terminal J2-1. The output effective terminal E of the shift register IC1-1 and the IC2-1, 2 pins of the connection terminal J1-1 and 2 pins of the J2-1 are connected and connected with GND. The main reset terminal SRCLR of the shift register IC1-1, the main reset terminal SRCLR of the-IC 2-1, the pin 1 of the connecting terminal J1-1 and the pin 1 of the J2-1 are connected and VCC is connected. Eight-bit parallel output pins (O0-O7) of the shift register IC2-1 are respectively connected with input pins (a-dp) of the nixie tube S2-1 through current limiting resistors (R10-1-R17-1). The serial data output pin Q7 of the shift register IC2-1 is connected to 3 pins of J2-1. The common terminal COM of the nixie tubes S1-1 and S2-1 is connected with the 6 pins of the connecting terminal J1-1, the 6 pins of the J2-1 and the TJ pin of the switch S4 in the manual dimming module. By analogy, the scale value display modules 4 are connected, and pins 1-6 of the wiring terminal J1-1 of the next scale value display module 4 are correspondingly connected with pins 1-6 of the wiring terminal J2-1 of the previous scale value display module 4. Pins 1 to 6 of a connecting terminal J1-1 of the first scale value display module 4 are connected with pins 1 to 6 of a connecting terminal J2 of the control dimming module 7 in a one-to-one correspondence manner.
As shown in fig. 6, the control dimming and automatic dimming module 7 includes a light intensity sensor IC3, a digital-to-analog conversion module IC4, and an operational amplifier IC 5; data output pins P00-P07 of the main processor MCU are connected with data input pins DI 0-DI 7 of the digital-to-analog conversion module, and a chip selection pin CS and a forwarding control pin XFER of the digital-to-analog conversion module IC4 are connected with a data output pin P27 of the main processor MCU; write pins WR1 and WR2 of the digital-to-analog conversion module IC4 are connected with a write gating pin WR of the main processor MCU; a reference voltage pin VREF of the digital-to-analog conversion module IC4 is connected with a potentiometer R12 and a capacitor C5; the current output pins IOUT1 and IOUT2 of the digital-to-analog conversion module IC4 are respectively connected with pin 2 and pin 3 of an operational amplifier (IC 5); the output 6 pin of the operational amplifier IC5 is connected to pin Z-TAOJIE + of the manual dimming module, which is connected to the TJ2 pin of the switch S4 in the manual dimming module.
As shown in fig. 6, the light intensity sensor IC3 collects ambient light intensity signals, connects to the data end of the main processor MCU, transmits light intensity information to the main processor MCU for processing, and drives the digital-to-analog conversion module IC4 to automatically adjust the brightness of the light scale 5 according to the brightness of the ambient light.
As shown in fig. 6, the keys include a scale value plus key S1, a scale value minus key S2, and a system reset key S3, which are respectively connected to pins P20, P21, and P22 of the main controller MCU, so as to modify the water level value displayed by the light-emitting scale and reset the system.
As shown in fig. 7, the manual dimming module 9 is located inside the light source controller 8, and is used for remotely adjusting the brightness of the light emitting scale. The output pin S-TAOJIE + of the manual dimming module is connected with the TJ1 pin of the switch S4; the 6 pin of the connection terminal J2 in the control dimming and automatic dimming module 7, the 6 pin of the connection terminal J1-1 in the scale value display module 4, and the 6 pin of the connection terminal J2-1 are connected to the TJ pin of the switch S4, respectively, and the 6 pin of the operational amplifier IC5 in the control dimming and automatic dimming module 7 is connected to the Z-TAOJIE + pin in the manual dimming module. The Z-TAOJIE + pin is connected to the TJ2 pin of switch S4 in the manual dimming module. The adjusting potentiometer W3 is used for adjusting the voltage of the output pin S-TAOJIE + to adjust the brightness of the nixie tube. Manual, automatic dimming is selected via switch S4, defaulting to automatic mode.
The invention utilizes the characteristics of low power consumption, long service life, high brightness, good color purity and little heat dissipation of the light-emitting diode and the structure of continuously adjustable brightness, not only achieves the effect of clearer observation of the water level gauge, but also enables the brightness of the gauge to be automatically or manually adjusted according to the change of the environment, simultaneously enables the scale value of the water level gauge to be synchronously modified step by step, avoids the replacement of the gauge due to the modification of the scale value, greatly reduces the maintenance amount and effectively saves the cost.
Claims (3)
1. A luminous scale for a water level gauge is arranged on a gauge body through a fixed frame and a front cover; the method is characterized in that: the luminous scale is composed of a light source controller and a scale;
the light source controller comprises a plurality of scale value display modules, a control value adjusting and automatic light adjusting module, a manual light adjusting module and a power supply module; wherein,
the eight-bit parallel output end of the shift register IC1-1 of the scale value display module is respectively connected with the input end of the nixie tube through a current-limiting resistor, so that data is transmitted to the nixie tube for display; the clock input end of the shift register IC1-1 and the clock input end of the storage register are respectively connected with the clock input end of the other shift register IC2-1 and the clock input end of the storage register, so that display synchronization is realized; the main reset ends of the shift registers IC1-1 and IC2-1 are connected and are connected with VCC; the main reset end, the output effective end, the clock input end and the clock input end of the shift register IC1-1 and the IC2-1 are correspondingly connected with the main reset end, the output effective end, the clock input end and the clock input end of the storage register of the shift register IC1-1 and the IC2-1 in the scale value display module at the upper stage and the lower stage respectively through connecting terminals J1-1 and J2-1; an eight-bit parallel output pin of the shift register IC2-1 is respectively connected with the input end of the nixie tube through a current-limiting resistor, so that the data is transmitted to the nixie tube for display; the serial data input end SER of the shift register IC1-1 is connected with the serial data output end of the shift register IC2-1 in the previous-stage scale value display module through a connecting terminal J1-1, the serial data output end of the shift register IC1-1 is connected with the serial data input end SER of the shift register IC2-1, the serial data output end of the shift register IC2-1 is connected with the serial data input end SER of the shift register IC1-1 in the next-stage scale value display module through a connecting terminal J2-1, and data progressive transmission is achieved; the common ends COM of the nixie tubes S1-1 and S2-1 are connected and are connected with the adjusting output end TJ of the switch in the manual dimming module through connecting terminals J1-1 and J2-1 to realize the output of the switch; by analogy, a plurality of scale value display modules are connected, and the next scale value display module is connected with the wiring terminal J2-1 of the previous scale value display module through the wiring terminal J1-1, so that the scale value display modules are connected step by step; the first scale value display module is connected with a connection terminal J2 of the control dimming value and automatic dimming module through a connection terminal J1-1, so that the connection with the control dimming value and automatic dimming module is realized.
2. A luminescent scale for a water level gauge according to claim 1, wherein:
the control dimming and automatic dimming module comprises a light intensity sensor IC3, a digital-to-analog conversion module IC4 and an operational amplifier IC 5; a data output pin of the main processor MCU is correspondingly connected with a data input pin of the digital-to-analog conversion module, and a chip selection pin and a forwarding control pin of the digital-to-analog conversion module IC4 are connected with a data output pin of the main processor MCU; a write-in pin of the digital-to-analog conversion module IC4 is connected with a write gating pin of the main processor MCU; a reference voltage pin of the digital-to-analog conversion module IC4 is connected with a potentiometer and a capacitor; the current output pins of the digital-to-analog conversion module IC4 are respectively connected with the operational amplifier IC 5; the light intensity sensor IC3 collects ambient illuminance signals, an I2C bus interface of the light intensity sensor IC3 is respectively connected with a data input end of a main processor MCU, illuminance information is transmitted to the main processor MCU to be processed, and a digital-to-analog conversion module IC4 is driven to realize that the brightness of the light-emitting scale is automatically adjusted according to the brightness of the environment.
3. A luminescent scale for a water level gauge according to claim 1, wherein:
the manual dimming module is positioned in the light source controller to realize remote adjustment of the brightness of the light-emitting scale; an output pin of the manual dimming module is connected with the switch, so that the function switching of manually adjusting the brightness of the nixie tube is realized; the control value adjusting and automatic light adjusting module and the scale value display module are respectively connected with a switch, so that the signal output of manually and automatically adjusting the brightness of the nixie tube is realized; an operational amplifier IC5 in the control dimming value and automatic dimming module is connected with the manual dimming module; the switch selects manual and automatic dimming, and the default mode is automatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101718.3A CN107270991A (en) | 2017-02-24 | 2017-02-24 | A kind of water-level gauge Luminous scale |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710101718.3A CN107270991A (en) | 2017-02-24 | 2017-02-24 | A kind of water-level gauge Luminous scale |
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| CN107270991A true CN107270991A (en) | 2017-10-20 |
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| CN201710101718.3A Pending CN107270991A (en) | 2017-02-24 | 2017-02-24 | A kind of water-level gauge Luminous scale |
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| CN201757627U (en) * | 2010-07-06 | 2011-03-09 | 常州工学院 | Luminous scale |
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- 2017-02-24 CN CN201710101718.3A patent/CN107270991A/en active Pending
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| US4748404A (en) * | 1984-03-05 | 1988-05-31 | Brown, Boveri & Cie. Ag | Digital measuring device for the quasi-analog indication of measurement values |
| CN2882047Y (en) * | 2006-01-17 | 2007-03-21 | 孙宝剑 | Safety tool and earth wire digital display device for converting station |
| CN201034540Y (en) * | 2006-11-09 | 2008-03-12 | 昆明理工大学 | Digital display proportionment conversion ruler |
| WO2009124432A1 (en) * | 2008-04-11 | 2009-10-15 | 深圳市联德合微电子有限公司 | An led constant current driving circuit |
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Application publication date: 20171020 |