CN2221779Y - Digital level indicator and alarm for liquid-storage equipment - Google Patents
Digital level indicator and alarm for liquid-storage equipment Download PDFInfo
- Publication number
- CN2221779Y CN2221779Y CN 94200406 CN94200406U CN2221779Y CN 2221779 Y CN2221779 Y CN 2221779Y CN 94200406 CN94200406 CN 94200406 CN 94200406 U CN94200406 U CN 94200406U CN 2221779 Y CN2221779 Y CN 2221779Y
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- CN
- China
- Prior art keywords
- circuit
- liquid
- links
- digital display
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a digital level indicating and alarming device for liquid-storage equipment. The device is composed of a pressure measuring piece and a signal processing tank, wherein, the pressure measuring piece is composed of a rubber tube, a force transducer and a connection cable; the signal processing tank is composed of a sensing circuit, a digital display circuit and an alarm circuit. The utility model has the advantages of simple structure, convenient installation, small volume, light weight and accurate position measurement. Thus, the utility model is especially suitable for liquid level monitoring for oil tanks of water towers, oil-storage tanks and diesel locomotives.
Description
The utility model relates to the level monitoring field of device for storing liquid.
Existing device for storing liquid is not owing to there is additional monitoring device, and injection liquid has often fills with the accident generation of overflowing.Measure water tower, storage tank etc. and once adopted cursory Mechanical Method and electric capacity quantity method, but institute's liquid level of surveying inaccurate, install inconvenient and invest greatly.
The purpose of this utility model is to release a kind ofly can monitor liquid storage equipment liquid level, the device that can report to the police at any time when filling with liquid.
The technical solution of the utility model is: liquid storage apparatus figure formula level gauging instrument is made up of pressure survey part and signal Processing case.Pressure-measuring device is made up of sebific duct, force cell and stube cable.The signal Processing case is made up of sensing circuit, digital display circuit and warning circuit.
The utility model compared with prior art has following advantage:
The liquid level of surveying accurate, easy for installation, cost is low, can report to the police when liquid is filled with, and guarantees safety.
Below in conjunction with embodiment the utility model is further specified:
Fig. 1: digital liquid level shows and warning device
Fig. 2: device circuit block diagram
Fig. 3: device circuit figure
1 is control box, 2 for digital display board, 3 for force cell, 4 for sebific duct, 5 for stube cable, 6,8 for socket, 7 for power supply connect variable voltage-stabilized power supply circuits of rectification that lead, 9 uses for the voltage supply force transducer, 10 for the rectifying voltage regulator circuit that shows usefulness for numeral, 11 for for the rectifying voltage regulator circuit of luminous and high loudness warning usefulness, 12 for the semiconductor pressure sensing circuit, 13 for digital display circuit, 14 for warning circuit, 15 for digital indicator, 16 for illuminator, 17 be that high loudness is interrogated Chinese percussion instrument.
After sensor 3 bears hydrostatic pressure, its inner electric bridge changes, so produce an electric signal, it is △ V voltage, it is by cable and the sensing circuit 12, digital display circuit 13 and the warning circuit 14 that import in the control box 1, the amplifier of process foregoing circuit is adjusted circuit function, A/D digital-to-analog conversion, decoding drives and the effect of luminous and high loudness electric elements, and generation is digital on the display board 2 shows that this numeral is exactly a level value.Voltage △ V and level value are linear, in electrical equipment control, null value are demarcated, and then the numeral of Xian Shiing is exactly a level value.
Claims (1)
1, a kind of liquid storage apparatus figure formula liquid level shows and warning device, is made up of pressure survey part and signal Processing case, it is characterized in that pressure-measuring device is made up of sebific duct (4), force cell (3), stube cable (5); Force cell (5) is installed in the fluid reservoir bottom, and sebific duct (4) stretches in the liquid, and force cell (3) links to each other with the socket (6) of control box (1) by cable; The signal Processing case is made up of sensing circuit (12), digital display circuit (13), warning circuit (14); Sensing circuit (12) links to each other with force cell (3), digital display circuit (13) links to each other with digital indicator (15), warning circuit (14) links to each other with illuminator (16) and high loudness news Chinese percussion instruments (17), three road rectifying voltage regulators is arranged respectively to sensing circuit (12), digital display circuit (13) and warning circuit (14) power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94200406 CN2221779Y (en) | 1994-01-13 | 1994-01-13 | Digital level indicator and alarm for liquid-storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94200406 CN2221779Y (en) | 1994-01-13 | 1994-01-13 | Digital level indicator and alarm for liquid-storage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2221779Y true CN2221779Y (en) | 1996-03-06 |
Family
ID=33820752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94200406 Expired - Fee Related CN2221779Y (en) | 1994-01-13 | 1994-01-13 | Digital level indicator and alarm for liquid-storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2221779Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447478C (en) * | 2005-11-25 | 2008-12-31 | 发那科株式会社 | Grease supply apparatus |
| CN100595525C (en) * | 2008-03-07 | 2010-03-24 | 厦门大学 | Acoustic liquid level alarm of liquid reservoir |
-
1994
- 1994-01-13 CN CN 94200406 patent/CN2221779Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447478C (en) * | 2005-11-25 | 2008-12-31 | 发那科株式会社 | Grease supply apparatus |
| CN100595525C (en) * | 2008-03-07 | 2010-03-24 | 厦门大学 | Acoustic liquid level alarm of liquid reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |