CN2669185Y - Intelligent liquid-level interface automatic measuring instrument - Google Patents
Intelligent liquid-level interface automatic measuring instrument Download PDFInfo
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- CN2669185Y CN2669185Y CNU200420041462XU CN200420041462U CN2669185Y CN 2669185 Y CN2669185 Y CN 2669185Y CN U200420041462X U CNU200420041462X U CN U200420041462XU CN 200420041462 U CN200420041462 U CN 200420041462U CN 2669185 Y CN2669185 Y CN 2669185Y
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- measuring instrument
- automatic measuring
- intelligent liquid
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Abstract
The utility model relates to an intelligent liquid-level interface automatic measuring instrument, comprising a radiation source, a radiation detector and a signal processing module. A sensor is composed of the radiation source and the radiation detector which are provided at the same horizontal section of the inner part of the exploring tube or along the direction of the axis. Wherein, the inclination alpha of the centerline of the collimating aperture used for sending and receiving the radiation of the radiation source and the radiation detector is 5 degrees-170 degrees . The utility model adopts the technology of the non-contact type radiation scattering measurement to measure the liquid level, the interface and water containing of the profile, which is free from the influence of dielectric characteristic, temperature change and measuring environment change. The intelligent liquid-level interface automatic measuring instrument has the advantages of high measurement precision, dynamic, continuous and automatic measurement and broad application.
Description
Technical field
The utility model relates to a kind of moisture automatic measuring instrument of non-contact measurement liquid level, interface and section that adopts, especially a kind of intelligent liquid level interface automatic measuring instrument.
Background technology
Measure at present the detector of water-oil interface, mainly contain: 1, capacitance Oil vs Water Boundary Detecting measuring instrument, it mainly is located at the position that the capacitance variations that forms between electrode in the container and the water calculates water-oil interface in the container by measurement.But electrode is immersed in the profit for a long time, and the erosion that is subjected to profit can change gradually, influences the accuracy of capacitance measurement and the position at fluid interface.2, a kind of ultrasound wave water-oil interface detector that adopts the ultrasonic principle of two-beam, the speed of ultrasonic propagation in the oil product in hyperacoustic two-way time that it sends by the ultrasonic transducer that is arranged on two different frequencies in oil vessel bottom and the container, calculate the interface of profit in the container, but this detector is not temperature compensated, can't revise the sonic velocity change that causes oil and water owing to temperature variation, influence the accuracy of measuring.Above-mentioned detector generally is used for oil vessel, and the water that is deposited in the container for discharging provides information, because these containers itself can not be used for water-oil interface are controlled demanding commercial production.3, utilize the resonant condition of frequency electromagnetic waves to measure water-oil interface, during the propagation of frequency electromagnetic waves in You Heshui, its wavelength is different, causes the resonance frequency difference in loop, causes the variation of resonant condition, thereby reaches the purpose of measuring water-oil interface.Method for measuring liquid level is to adopt communicating pipe and the direct mode of inserting scale to measure in addition, and its measuring accuracy is low, and labour intensity is big.Also have and adopt the mode of condenser type, ultrasonic type and frequency electromagnetic waves to measure.The shortcoming of its shortcoming and above-mentioned interface instrument with, and its precision, poor stability.
Summary of the invention
The purpose of this utility model is in order to provide a kind of intelligent liquid level interface and section moisture automatic measuring instrument, this measuring instrument adopts contactless ray scattering measuring technique to come measuring liquid level, interface and section moisture, the influence that not changed by dielectric property, temperature variation, measurement environment, its measuring accuracy height, dynamically continuous automatic measurement is applied widely.
The purpose of this utility model can realize by following measure:
A kind of intelligent liquid level interface automatic measuring instrument comprises radiographic source, ray detector and signal processing module; Same horizontal section in sound-pipe or establish radiographic source vertically and ray detector constitutes sensor; Wherein the angle α of the collimating aperture center line that transmits and receives ray of radiographic source and ray detector is 5～170 °.
Above-mentioned sensor links to each other with gearing, is used for the displacement of movable sensor in measuring disrance sleeve, and reaches the purpose of measurement.
Signal by sensor output links to each other via signal processing and amplifying module, by the data of processes sensor output in the signal processing and amplifying module and record shows or with higher level's microcomputer communication.
The sensor moves in measuring disrance sleeve, to sensor surface fouling, wax deposition, erosion and damage, guarantees measuring accuracy to prevent fluid to be measured.
The utility model has following advantage compared to existing technology:
1, the utility model utilizes radiographic source to send ray signal, pass liquid and by after its scattering, received and sent signal to signal processing and amplifying resume module, record and demonstration by ray detector, it adopts non-contact measurement, measures reliability height, level gauging precision height.
2, the utility model is isolated sensor and liquid fully and is carried out complete non-contact measurement, is not subjected to the influence of dielectric property, can avoid shortcomings such as measuring accuracy out of true that reasons such as fouling, wax deposition, corrosion cause, instability.
3, the utility model adopts the radionetric survey technology to avoid changing liquid level, the moisture measuring error of bringing of interface emulsification layer because of emulsion such as oil-in-water, Water-In-Oil and extraneous measurement environment.
4, the utility model can realize simultaneously that dynamic continuous automatic measurement liquid level, interface and section are moisture, can realize online two position warning.
5, the utility model is applicable to metering and the monitoring that petrochemical system is all kinds of big jar, comprises the metering and the monitoring of liquid level, interface, moisture section and the liquid oil mass of the oily three phase separation jar of standing of oil field collection (commentaries on classics), electrical dewatering jar, slurry tank, product tank etc.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is embodiment one a sensor construction synoptic diagram of the present utility model
Fig. 3 is embodiment two sensor construction synoptic diagram of the present utility model
Fig. 4 is the circuit theory diagrams of control module of the present utility model
Mark is described as follows among the figure:
1-sensor 2-measures disrance sleeve 3-signal processing and amplifying module
4-control module 5-gearing 6-sound-pipe 7-ray detector
Big jar of 11-collimating aperture of 8-radiographic source 9-steel wire 10-
Concrete embodiment
The utility model is also incited somebody to action in conjunction with the accompanying drawings, and 1,2,3,4 embodiment are described in further detail:
With reference to Fig. 1, measurement by magnification disrance sleeve 2 in big jar 10 is put into sensor 1 in measuring disrance sleeve 2, sensor 1 is connected with gearing 5 by connecting steel wire 9, and it moves gearing 5 by control module 4 controls, and described control module 4 is computing machine, by calculating the output control signal; Described gearing 5 is formed for the hoisting mechanism that stepper motor drives.With reference to Fig. 2, described sensor 1 is to establish gamma ray projector 8 and ray detector 7 in sound-pipe 6 vertically, the angle α that transmits and receives ray collimating aperture 11 center lines of gamma ray projector 8 and ray detector 7 is 30 °, sensor 1 links to each other with signal processing and amplifying module 3, and wherein signal processing and amplifying module 3 is a known signal processing and amplifying module.Described signal processing and amplifying module 3 can be selected commercially available amplification circuit module for use.
Another embodiment of the present utility model, please refer to Fig. 3, described sensor 1 is that gamma ray projector 8 and ray detector 7 are established in same horizontal section in sound-pipe 6, and the angle α that transmits and receives ray collimating aperture 11 center lines of gamma ray projector 8 and ray detector 7 is 27 °.
Described control module 4 sees also accompanying drawing 4 and is its circuit theory synoptic diagram, and wherein control circuit control step motor rotates, drives detector 7 upper and lower moving in big jar by mechanical driving device; Rotary encoder be the actual displacement feedback assembly, with realize the far-end control survey accurately, reliable; The hall sensing switch is used for the calibration of systematic survey zero-bit and determining of measurement range; Tension pick-up is used for the malfunction monitoring of tool gearing.
Claims (4)
1, a kind of intelligent liquid level interface automatic measuring instrument comprises radiographic source (8), ray detector (7) and signal processing and amplifying module (3); It is characterized in that the same cross section in sound-pipe (6) or establish radiographic source (8) vertically and ray detector (7) formation sensor (1); Wherein the angle α of the collimating aperture that transmits and receives ray (11) center line of radiographic source (8) and ray detector (7) is 5 °-170 °.
2, intelligent liquid level as claimed in claim 1 interface automatic measuring instrument is characterized in that described sensor (1) links to each other with gearing (5).
3, intelligent liquid level as claimed in claim 1 interface automatic measuring instrument is characterized in that being linked to each other via signal processing and amplifying module (3) by the signal of sensor (1) output.
4, intelligent liquid level as claimed in claim 1 interface automatic measuring instrument is characterized in that sensor (1) moves in measuring disrance sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420041462XU CN2669185Y (en) | 2004-01-02 | 2004-01-02 | Intelligent liquid-level interface automatic measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420041462XU CN2669185Y (en) | 2004-01-02 | 2004-01-02 | Intelligent liquid-level interface automatic measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669185Y true CN2669185Y (en) | 2005-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200420041462XU Expired - Fee Related CN2669185Y (en) | 2004-01-02 | 2004-01-02 | Intelligent liquid-level interface automatic measuring instrument |
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| CN (1) | CN2669185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
| CN105486382A (en) * | 2015-12-31 | 2016-04-13 | 河北珠峰仪器仪表设备有限公司 | Magnetostrictive liquid level measuring device with liquid level hard warning and detecting functions |
-
2004
- 2004-01-02 CN CNU200420041462XU patent/CN2669185Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
| CN105486382A (en) * | 2015-12-31 | 2016-04-13 | 河北珠峰仪器仪表设备有限公司 | Magnetostrictive liquid level measuring device with liquid level hard warning and detecting functions |
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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 |