CN202274908U - Oil level meter with high accuracy - Google Patents
Oil level meter with high accuracy Download PDFInfo
- Publication number
- CN202274908U CN202274908U CN2011204110426U CN201120411042U CN202274908U CN 202274908 U CN202274908 U CN 202274908U CN 2011204110426 U CN2011204110426 U CN 2011204110426U CN 201120411042 U CN201120411042 U CN 201120411042U CN 202274908 U CN202274908 U CN 202274908U
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- ultrasonic sensor
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- oil level
- recording instrument
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses an oil level meter with high accuracy. The oil level meter is provided with an ultrasonic sensor and a paperless recorder; the ultrasonic sensor is mounted above an oil tank; the ultrasonic sensor establishes communication with the paperless recorder through a wired or wireless transmission device; the paperless recorder is provided with a USB (Universal Serial Bus) interface and a 485 serial interface; and the paperless recorder establishes remote communication with a computer of a central control room through the 485 serial interface. The deviation of the metering accuracy of the meter is about 0.1%, the accuracy is increased by 30 times compared with that in the prior art, the real-time data acquisition and storage of fuel consumption of a gantry crane are realized, and meanwhile, the paperless recording of fuel record is realized, namely, a portable storage device (a USB disk) is used for data storage. The meter has strong functional expansibility and can be expanded into a remote communication system by using the 485 interface and adding hardware equipment, and data can be directly transferred to the computer of the central control room so as to achieve remote monitoring.
Description
Technical field:
The utility model relates to a kind of oil level gauge, especially a kind of gauge that is used to measure DCT field bridge fuel quantity.
Background technology:
DCT field bridge fuel oil was to detect through the contact liquid level indicator that is arranged on the fuel tank side in the past, and this instrument is through measuring liquid level and then measuring oil mass.The influence generation error that above-mentioned surveying instrument receives greasy dirt easily is bigger, and accuracy error reaches about 3%, and data measured also is not easy to record, storage and transmission.
Summary of the invention:
The utility model provides a kind of measuring accuracy high to the above-mentioned deficiency of prior art, makes things convenient for the high precision oil level gauge of metering, data storage and transmission.
The technical solution of the utility model is: a kind of high precision oil level gauge; Be provided with ultrasonic sensor and recording instrument without paper; Ultrasonic sensor is installed on the top of fuel tank; Ultrasonic sensor is set up communication through wired or wireless transmitting device and recording instrument without paper, and recording instrument without paper is provided with USB interface and 485 serial line interfaces, and recording instrument without paper is set up telecommunication through 485 serial line interfaces and Central Control Room computer.
Described ultrasonic sensor is provided with two PNP switching value output circuits, and the 4-20mA analogue quantity output circuit, also is provided with digital filter apparatus; The detection head diameter of ultrasonic sensor is 30mm.
Described recording instrument without paper is provided with sensor and isolates power distribution circuit, alarm relay circuit, output print circuit.
The utility model has been realized the real-time preparation metering of a bridge fuel oil, thereby can examine field bridge driver's energy consumption operation, from management layer, has reached energy-saving effect.The measuring accuracy deviation of this instrument is about 0.1%, and precision improved 30 times more in the past, realizes a real-time data acquisition of bridge fuel consumption and storage, realizes the no paper record of fuel oil record simultaneously, promptly uses movable memory equipment (USB flash disk) to carry out data storage.This instrumental function extendability is strong, can utilize 485 interfaces, increase hardware device to be extended to telecommunication system, and data are directly transferred to the Central Control Room computer, realizes remote monitoring.
Description of drawings:
Fig. 1 is the structural principle block diagram of the utility model embodiment.
Embodiment:
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
As shown in Figure 1; A kind of high precision oil level gauge; Be provided with ultrasonic sensor and recording instrument without paper, ultrasonic sensor is installed on the top of fuel tank, and ultrasonic sensor is set up communication through radio transmitting device and recording instrument without paper; Recording instrument without paper is provided with USB interface and 485 serial line interfaces, and recording instrument without paper is set up telecommunication through 485 serial line interfaces and Central Control Room computer.
The BANNER T30U type ultrasonic sensor that described ultrasonic sensor adopts the U.S. to produce, T30U are ultrasonic sensor exquisite, ultrashort type, and the detection head diameter is 30mm, realize setting arbitrarily in 100mm-1m or the 300mm-2m scope different detection window.Two PNP switching value outputs are arranged, add the output of 4-20mA analog quantity, the output of every road can independent programmed settings.And own digital filter apparatus has extremely strong antijamming capability, instantaneous overvoltage and reverse polarity protection's function is arranged, waterproofing design, degree of protection IECIP67; NEMA6P uses quick, safety.
Dimensional data according to fuel tank carries out long distance and low coverage debugging with sensor before use; Good T30U ultrasonic sensor is positioned at a top of bridge fuel tank with setting debugging; Ultrasound wave directly detects the liquid level difference of diesel oil in the fuel tank, in real time measurement data (4-20mA electric current) is transmitted in recording instrument without paper.Realize the high Precision Detection function of oil level.
Described recording instrument without paper adopts the monochromatic recording instrument without paper of CR-2100 series 3 passages, and this recording instrument without paper can be imported multiple signals such as normalized current, normal voltage, frequency, millivolt, thermopair, thermal resistance.Have sensor and isolate distribution output, alarm relay output, flow accumulation, accumulative total form, historical data unloading, printing and remote communicating function.
The course of work is following: at first on-the-spot fuel tank volume measured, and the floorage of main measuring masuring tank and height, and the 4-20mA current value that measured value and ultrasonic sensor are transmitted calculates, and draws the oily measured value of consumption, and preserves data in real time.Also can be extended to wireless communication networks, data are sent to the record that the Central Control Room computer is accomplished fuel consumption according to customer requirement.
It is following before and after the installation oil mass metering device 25# field bridge to be consumed oily operating mode formation contrast table:
Claims (3)
1. high precision oil level gauge; It is characterized in that: be provided with ultrasonic sensor and recording instrument without paper; Ultrasonic sensor is installed on the top of fuel tank; Ultrasonic sensor is set up communication through wired or wireless transmitting device and recording instrument without paper, and recording instrument without paper is provided with USB interface and 485 serial line interfaces, and recording instrument without paper is set up telecommunication through 485 serial line interfaces and Central Control Room computer.
2. a kind of high precision oil level gauge according to claim 1 is characterized in that: described ultrasonic sensor is provided with two PNP switching value output circuits, and the 4-20mA analogue quantity output circuit, also is provided with digital filter apparatus; The detection head diameter of ultrasonic sensor is 30mm.
3. a kind of high precision oil level gauge according to claim 1 is characterized in that: described recording instrument without paper is provided with sensor and isolates power distribution circuit, alarm relay circuit, output print circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204110426U CN202274908U (en) | 2011-10-25 | 2011-10-25 | Oil level meter with high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204110426U CN202274908U (en) | 2011-10-25 | 2011-10-25 | Oil level meter with high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274908U true CN202274908U (en) | 2012-06-13 |
Family
ID=46195259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204110426U Expired - Lifetime CN202274908U (en) | 2011-10-25 | 2011-10-25 | Oil level meter with high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575481A (en) * | 2012-07-30 | 2014-02-12 | 中航鼎衡造船有限公司 | Pressure recording and monitoring station for liquefied gas carrier piping system strength and tightness test |
| CN105203178A (en) * | 2015-09-16 | 2015-12-30 | 武汉钢铁(集团)公司 | Industrial gas liquid level monitoring device |
| CN108062067A (en) * | 2018-01-18 | 2018-05-22 | 杭州美尼特自动化仪表有限公司 | A kind of pollution sources real time and on line monitoring system and its monitoring method |
-
2011
- 2011-10-25 CN CN2011204110426U patent/CN202274908U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575481A (en) * | 2012-07-30 | 2014-02-12 | 中航鼎衡造船有限公司 | Pressure recording and monitoring station for liquefied gas carrier piping system strength and tightness test |
| CN105203178A (en) * | 2015-09-16 | 2015-12-30 | 武汉钢铁(集团)公司 | Industrial gas liquid level monitoring device |
| CN108062067A (en) * | 2018-01-18 | 2018-05-22 | 杭州美尼特自动化仪表有限公司 | A kind of pollution sources real time and on line monitoring system and its monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |