CN207991639U - A kind of radar levelmeter measuring coal water slurry storage tank liquid level - Google Patents
A kind of radar levelmeter measuring coal water slurry storage tank liquid level Download PDFInfo
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- CN207991639U CN207991639U CN201820561645.6U CN201820561645U CN207991639U CN 207991639 U CN207991639 U CN 207991639U CN 201820561645 U CN201820561645 U CN 201820561645U CN 207991639 U CN207991639 U CN 207991639U
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Abstract
The utility model provides a kind of radar levelmeter measuring coal water slurry storage tank liquid level, including microprocessor and shell；Microprocessor is connected with the first signal oscillating module, second signal oscillation module, liquid crystal driver module and power module；First signal oscillating module is connected with radio-frequency module, and radio-frequency module is connected with antenna and frequency mixing module, and frequency mixing module is connected with analog-to-digital conversion module, and analog-to-digital conversion module is also connect with microprocessor；Second signal oscillation module is also connect with frequency mixing module；Liquid crystal driver module is connected with liquid crystal display；First signal oscillating module, liquid crystal driver module, power module, has radio-frequency module, frequency mixing module and analog-to-digital conversion module to be arranged in shell at second signal oscillation module, and liquid crystal display is arranged in housing outer surface；Antenna passes through flanged joint with shell.Non-cpntact measurement is carried out to the liquid level in coal water slurry storage tank using radar levelmeter, level meter ontology is avoided and is blocked by water-coal-slurry, and be not affected by temperature, it is accurate to measure.
Description
Technical field
The utility model belongs to level gauging field, and in particular to a kind of radar level measuring coal water slurry storage tank liquid level
Meter.
Background technology
Currently used level gauging mode has differential pressure ways of measure pressure, ultrasonic type, radar type etc..For the liquid of water-coal-slurry
Position measures, and is easy to be blocked by water-coal-slurry liquid using sample point when differential pressure pressure, causes to measure inaccurate or failure；Using ultrasound
When amount, it is easy, by influences such as environment temperatures, level meter to be made to measure inaccurate or failure.
This is the deficiencies in the prior art, therefore, in view of the above-mentioned drawbacks in the prior art, provides a kind of measurement water-coal-slurry storage
The radar levelmeter of tank liquid level, is necessary.
Invention content
The purpose of this utility model is that the level gauging for above-mentioned water-coal-slurry lacks lacking for accurate measurement method
It falls into, provides a kind of radar levelmeter measuring coal water slurry storage tank liquid level, to solve the above technical problems.
To achieve the above object, the utility model provides following technical scheme：
A kind of radar levelmeter measuring coal water slurry storage tank liquid level, which is characterized in that including microprocessor and shell；
Microprocessor is connected with the first signal oscillating module, second signal oscillation module, liquid crystal driver module and power supply mould
Block；
First signal oscillating module is connected with radio-frequency module, and radio-frequency module is connected with antenna and frequency mixing module, frequency mixing module
It is connected with analog-to-digital conversion module, analog-to-digital conversion module is also connect with microprocessor；
Second signal oscillation module is also connect with frequency mixing module；
Liquid crystal driver module is connected with liquid crystal display；
First signal oscillating module, liquid crystal driver module, power module, has radio-frequency module, is mixed second signal oscillation module
Frequency module and analog-to-digital conversion module are arranged in shell, and liquid crystal display is arranged in housing outer surface；Antenna passes through with shell
Flanged joint.
Microprocessor sends two groups of narrow pulse signals and is respectively used to the first signal oscillating module of driving and second signal oscillation
The signal of module, the output of the first signal oscillating module is launched through radio-frequency module from antenna, and signal is passed with the light velocity in air
It broadcasts, the liquid surface for reaching water-coal-slurry fluid reservoir to be measured is reflected, and reflection signal is received back into radio-frequency module through antenna again, then together
The signal of second signal oscillation module output reaches analog-to-digital conversion module after reaching frequency mixing module mixing together, by analog-to-digital conversion
The analyzing processing that microprocessor carries out signal is returned to, water-coal-slurry liquid storage is obtained with the time interval for reflecting signal according to transmitting signal
The distance of tank liquid level to antenna calculates liquid level further according to antenna to the distance of water-coal-slurry fluid reservoir tank bottom, is driven through liquid crystal
Dynamic module drive shows liquid level in liquid crystal display.
Further, the first bandpass filtering modules block and power are also associated between the first signal oscillating module and radio-frequency module
Amplification module, the first signal oscillating module are connect with the first bandpass filtering modules block, the first bandpass filtering modules block and power amplification mould
Block connects, and power amplifier module is connect with radio-frequency module；
The second bandpass filtering modules block is also associated between second signal oscillation module and frequency mixing module；
First bandpass filtering modules block, the second bandpass filtering modules block and power amplifier module are arranged in shell.
Further, first bandpass filtering modules block and the second bandpass filtering modules block strobe signal frequency are more than or equal to
24GHZ, and it is less than or equal to 26GHZ.
Further, low noise amplifier module, low noise amplifier are also associated between radio-frequency module and frequency mixing module
Module is arranged in shell.
Further, microprocessor is also associated with data output interface, and data output interface is arranged in housing outer surface；
Data output interface is also associated with host computer.
Further, data output interface includes HART communication interface and/or serial ports.
Further, it is additionally provided with blender in the water-coal-slurry fluid reservoir.
Further, power module includes input, output end, voltage transformation module and battery；
Input terminal is connected with first resistor R1 and charge-discharge control unit, and first resistor R1 is connected with the first P-channel metal-oxide-semiconductor
The other end of Q1, the second P-channel metal-oxide-semiconductor Q2 and second resistance R2, second resistance R2 are grounded；
The grid of the grid and the second P-channel metal-oxide-semiconductor Q2 of first resistor R1 connection the first P-channel metal-oxide-semiconductors Q1, the first P ditches
The drain electrode of road metal-oxide-semiconductor Q1 is connect with voltage conversion unit, and voltage conversion unit is connect with output end；
The drain electrode of second P-channel metal-oxide-semiconductor Q2 is connect with the element of the first P-channel metal-oxide-semiconductor Q1, the source of the second P-channel metal-oxide-semiconductor
Grade is connect with battery, and is connected with the other end ground connection of the first capacitance C1, the first capacitance C1；Battery also with charge-discharge control unit
Connection.Input terminal input voltage is that direct current 24V is battery powered when battery capacity abundance, in battery capacity deficiency
When, it is switched to supplying power for input end, while input terminal charges the battery；In battery and supplying power for input end handoff procedure, have of short duration
Power-off ensure in handoff procedure without power-off at this point, the first capacitance C1 can provide temporary electricity；Battery powered or input terminal
Power supply should voltage transformation go out required voltage, exported by output end.
Further, the antenna uses bell-mouth antenna.
Further, the microprocessor uses the microprocessor of CLW-DR-3 models.
The beneficial effects of the utility model are：
The utility model carries out non-cpntact measurement using radar levelmeter to the water-coal-slurry liquid level in coal water slurry storage tank, avoids
Level meter ontology is blocked by water-coal-slurry, and is not affected by temperature, and it is accurate to measure, and realizes externally fed and battery powered double
Power supply, meanwhile, realize the seamless switching of power supply.
In addition, the utility model design principle is reliable, and it is simple in structure, there is very extensive application prospect.
It can be seen that the utility model compared with prior art, has substantive features and progress, the beneficial effect implemented
Fruit is also obvious.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the inside connection diagram one of the utility model；
Fig. 3 is the inside connection diagram two of the utility model；
Fig. 4 is the inside connection diagram of power module；
Wherein, 1- microprocessors；2- shells；3- the first signal oscillating modules；4- second signal oscillation modules；5- liquid crystal drives
Dynamic model block；6- power modules；6.1- input terminal；6.2- output end；6.3- voltage conversion unit；6.4- battery；6.5- charge and discharge
Control unit；The first bandpass filtering modules blocks of 7-；The second bandpass filtering modules blocks of 8-；9- power amplifier modules；10- radio-frequency modules；11-
Antenna；12- low noise amplification modules；13- frequency mixing modules；14- analog-to-digital conversion modules；15- liquid crystal displays；16- flanges；17-
Data output interface；18- host computers；19- blenders；20- water-coal-slurry fluid reservoirs；R1- first resistors；R2- second resistances；Q1-
First P-channel metal-oxide-semiconductor；Q2- the second P-channel metal-oxide-semiconductors；The first capacitances of C1-.
Specific implementation mode：
It is specific below in conjunction with this to enable the purpose of this utility model, feature, advantage more apparent and understandable
The technical solution in the utility model is clearly and completely described in attached drawing in embodiment.
As depicted in figs. 1 and 2, the utility model provides a kind of radar levelmeter measuring coal water slurry storage tank liquid level, including
Microprocessor 1 and shell 2；
Microprocessor 1 is connected with the first signal oscillating module 3, second signal oscillation module 4, liquid crystal driver module 5 and electricity
Source module 6；The microprocessor 1 uses the microprocessor of CLW-DR-3 models；
First signal oscillating module 3 is connected with radio-frequency module 10, and radio-frequency module 10 is connected with antenna 11 and frequency mixing module 13,
Frequency mixing module 13 is connected with analog-to-digital conversion module 14, and analog-to-digital conversion module 14 is also connect with microprocessor 1；
Second signal oscillation module 4 is also connect with frequency mixing module 13；
Liquid crystal driver module 5 is connected with liquid crystal display 15；
First signal oscillating module 3, liquid crystal driver module 5, power module 6, has radio frequency mould at second signal oscillation module 4
Block 10, frequency mixing module 13 and analog-to-digital conversion module 14 are arranged in shell 2, and liquid crystal display 15 is arranged in 2 outer surface of shell；
Antenna 11 is connect with shell 2 by flange 16；The antenna 11 uses bell-mouth antenna；
It is additionally provided with blender 19 in the water-coal-slurry fluid reservoir 20；
Microprocessor 1 sends two groups of narrow pulse signals and is respectively used to that the first signal oscillating module 3 and second signal is driven to shake
Module 4 is swung, the signal of the first signal oscillating module 3 output is launched through radio-frequency module 10 from antenna 11, and signal is in air
With light velocity propagation, the liquid surface for reaching water-coal-slurry fluid reservoir 20 to be measured is reflected, and reflection signal is received back into through antenna 11 again
Radio-frequency module 10, then reached together after frequency mixing module 13 is mixed with the signal that second signal oscillation module 4 exports and reach modulus turn
Block 14 is changed the mold, the analyzing processing that microprocessor 1 carries out signal is returned to by analog-to-digital conversion, according to transmitting signal and reflection signal
Time interval obtains 20 liquid level of water-coal-slurry fluid reservoir to the distance of antenna 11, and 20 tank bottom of water-coal-slurry fluid reservoir is arrived further according to antenna 11
Distance, calculate liquid level, through liquid crystal driver module 5 drive, show 15 liquid levels in liquid crystal display.
As shown in Fig. 3 and Fig. 1, the first bandpass filtering is also associated between the first signal oscillating module 3 and radio-frequency module 10
Module 7 and power amplifier module 9, the first signal oscillating module 3 are connect with the first bandpass filtering modules block 7, the first bandpass filtering mould
Block 7 is connect with power amplifier module 9, and power amplifier module 9 is connect with radio-frequency module 10；
The second bandpass filtering modules block 8 is also associated between second signal oscillation module 4 and frequency mixing module 13；
First bandpass filtering modules block 7, the second bandpass filtering modules block 8 and power amplifier module 9 are also disposed in shell 2；
First bandpass filtering modules block 7 and 8 strobe signal frequency of the second bandpass filtering modules block are more than or equal to 24GHZ, and are less than
Equal to 26GHZ；
Low noise amplifier module 12, low noise amplifier module are also associated between radio-frequency module 10 and frequency mixing module 13
12 are also disposed in shell；
Microprocessor 1 is also associated with data output interface 17, and data output interface 17 is also disposed at 2 outer surface of shell；Number
HART communication interface is used according to output interface 17；
Data output interface 17 is also associated with host computer 18.
As shown in figure 4, power module 6 includes input terminal 6.1, output end 6.2, voltage transformation module 6.3 and battery 6.4；
Input terminal 6.1 is connected with first resistor R1 and charge-discharge control unit 6.5, and first resistor R1 is connected with the first P ditches
The other end of road metal-oxide-semiconductor Q1, the second P-channel metal-oxide-semiconductor Q2 and second resistance R2, second resistance R2 are grounded；
The grid of the grid and the second P-channel metal-oxide-semiconductor Q2 of first resistor R1 connection the first P-channel metal-oxide-semiconductors Q1, the first P ditches
The drain electrode of road metal-oxide-semiconductor Q1 is connect with voltage conversion unit 6.3, and voltage conversion unit 6.3 is connect with output end 6.2；
The drain electrode of second P-channel metal-oxide-semiconductor Q2 is connect with the element of the first P-channel metal-oxide-semiconductor Q1, the source of the second P-channel metal-oxide-semiconductor
Grade is connect with battery 6.4, and is connected with the other end ground connection of the first capacitance C1, the first capacitance C1；
Battery 6.4 is also connect with charge-discharge control unit 6.5；
6.1 input voltage of input terminal is that direct current 24V is powered, in electricity when 6.4 electricity abundance of battery by battery 6.4
When 6.4 not enough power supply of pond, it is switched to the power supply of input terminal 6.1, while input terminal 6.1 charges to battery 6.4；Battery 6.4 and input
During holding 6.1 power switchings, of short duration power-off is had, at this point, the first capacitance C1 can provide temporary electricity, guarantee switched
Cheng Zhongwu is powered off；Battery 6.4 power or input terminal 6.1 power should voltage transformation go out required voltage, it is defeated by output end 6.2
Go out.
The embodiments of the present invention are illustrative and not restrictive, and above-described embodiment, which is only to aid in, understands this reality
With novel, therefore the utility model is not limited to the embodiment described in specific implementation mode, every by those skilled in the art's root
The other specific implementation modes obtained according to the technical solution of the utility model also belong to the range of the utility model protection.
Claims (10)
1. a kind of radar levelmeter measuring coal water slurry storage tank liquid level, which is characterized in that including microprocessor（1）And shell（2）；
Microprocessor（1）It is connected with the first signal oscillating module（3）, second signal oscillation module（4）, liquid crystal driver module（5）
And power module（6）；
First signal oscillating module（3）It is connected with radio-frequency module（10）, radio-frequency module（10）It is connected with antenna（11）With mixing mould
Block（13）, frequency mixing module（13）It is connected with analog-to-digital conversion module（14）, analog-to-digital conversion module（14）Also with microprocessor（1）Even
It connects；
Second signal oscillation module（4）Also with frequency mixing module（13）Connection；
Liquid crystal driver module（5）It is connected with liquid crystal display（15）；
First signal oscillating module（3）, second signal oscillation module（4）, liquid crystal driver module（5）, power module（6）, penetrate
Frequency module（10）, frequency mixing module（13）And analog-to-digital conversion module（14）It is arranged at shell（2）It is interior, liquid crystal display（15）Setting
In shell（2）Outer surface；Antenna（11）With shell（2）Pass through flange（16）Connection.
2. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that
First signal oscillating module（3）And radio-frequency module（10）Between be also associated with the first bandpass filtering modules block（7）It is put with power
Big module（9）, the first signal oscillating module（3）With the first bandpass filtering modules block（7）Connection, the first bandpass filtering modules block（7）With
Power amplifier module（9）Connection, power amplifier module（9）With radio-frequency module（10）Connection；
Second signal oscillation module（4）And frequency mixing module（13）Between be also associated with the second bandpass filtering modules block（8）；
First bandpass filtering modules block（7）, the second bandpass filtering modules block（8）And power amplifier module（9）It is arranged in shell（2）It is interior.
3. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as claimed in claim 2, which is characterized in that described first
Bandpass filtering modules block（7）With the second bandpass filtering modules block（8）Strobe signal frequency is more than or equal to 24GHZ, and is less than or equal to
26GHZ。
4. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that radio-frequency module
（10）With frequency mixing module（13）Between be also associated with low noise amplifier module（12）, low noise amplifier module（12）It is also provided with
In shell.
5. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that microprocessor
（1）It is also associated with data output interface（17）, data output interface（17）It is arranged in shell（2）Outer surface；
Data output interface（17）It is also associated with host computer（18）.
6. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as claimed in claim 5, which is characterized in that data export
Interface（17）Including HART communication interface and/or serial ports.
7. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that
The water-coal-slurry fluid reservoir（20）In be additionally provided with blender（19）.
8. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that power module
（6）Including input terminal（6.1）, output end（6.2）, voltage transformation module（6.3）And battery（6.4）；
Input terminal（6.1）It is connected with first resistor R1 and charge-discharge control unit（6.5）, first resistor R1 is connected with the first P ditches
The other end of road metal-oxide-semiconductor Q1, the second P-channel metal-oxide-semiconductor Q2 and second resistance R2, second resistance R2 are grounded；
The grid of the grid and the second P-channel metal-oxide-semiconductor Q2 of first resistor R1 connection the first P-channel metal-oxide-semiconductors Q1, the first P-channel MOS
The drain electrode of pipe Q1 and voltage conversion unit（6.3）Connection, voltage conversion unit（6.3）With output end（6.2）Connection；
The drain electrode of second P-channel metal-oxide-semiconductor Q2 is connect with the element of the first P-channel metal-oxide-semiconductor Q1, the source level of the second P-channel metal-oxide-semiconductor with
Battery（6.4）Connection, and it is connected with the other end ground connection of the first capacitance C1, the first capacitance C1；
Battery（6.4）Also with charge-discharge control unit（6.5）Connection.
9. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that the antenna
（11）Using bell-mouth antenna.
10. a kind of radar levelmeter measuring coal water slurry storage tank liquid level as described in claim 1, which is characterized in that described micro-
Processor（1）Using the microprocessor of CLW-DR-3 models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561645.6U CN207991639U (en) | 2018-04-19 | 2018-04-19 | A kind of radar levelmeter measuring coal water slurry storage tank liquid level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561645.6U CN207991639U (en) | 2018-04-19 | 2018-04-19 | A kind of radar levelmeter measuring coal water slurry storage tank liquid level |
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| Publication Number | Publication Date |
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| CN207991639U true CN207991639U (en) | 2018-10-19 |
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| CN201820561645.6U Active CN207991639U (en) | 2018-04-19 | 2018-04-19 | A kind of radar levelmeter measuring coal water slurry storage tank liquid level |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082031A1 (en) * | 2019-10-30 | 2021-05-06 | 北京锐达仪表有限公司 | Pulse radar level meter for measuring material level in container |
-
2018
- 2018-04-19 CN CN201820561645.6U patent/CN207991639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082031A1 (en) * | 2019-10-30 | 2021-05-06 | 北京锐达仪表有限公司 | Pulse radar level meter for measuring material level in container |
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