CN2274765Y - Level monitor - Google Patents
Level monitor Download PDFInfo
- Publication number
- CN2274765Y CN2274765Y CN 96225321 CN96225321U CN2274765Y CN 2274765 Y CN2274765 Y CN 2274765Y CN 96225321 CN96225321 CN 96225321 CN 96225321 U CN96225321 U CN 96225321U CN 2274765 Y CN2274765 Y CN 2274765Y
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- CN
- China
- Prior art keywords
- monitor
- liquid
- sensor
- utility
- model
- 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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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a monitor for liquid levels and interfaces. The monitor can display the thickness values of liquid layers through measuring the interface thicknesses of liquid of different specific gravities and the overall height of liquid levels in a storage tank. The utility model is characterized in that the monitor is arranged outside a metal protection tube for sensors of a dry reed tube and a metal film resistor, the monitor is sheathed with two magnetic floats of different specific gravities, and the sensor is connected with a digital display device through a cable. Compared with existing liquid level meters, the monitor has the advantage that two impedance signals for reflecting the thickness of oil layers and the overall height of liquid levels can be output simultaneously by using the same one sensor. The utility model solves the technological difficulty that the thickness of an oil and water stratification can not be measured in crude oil storage tanks.
Description
The utility model relates to a kind of liquid-level interface monitor, and this instrument is mainly used in two kinds of proportion different liquids and loads in mixture in the same container, measures its liquid level overall height and upper surface to thickness between the liquid interface.
After oil extraction is come out, be entrained with a large amount of underground water, after these crude oil are put into storage tank, tanks beneath is being accumulated water, oily adrift above, when carrying out oil and water separation, the production management personnel need often to observe to float on core intersection waterborne, but because the depth of accumulated water below the oil reservoir is changing incessantly, the starting point that makes core intersection measure is also constantly changing, the liquid level instrument of domestic production at present can only show parameter of liquid level or interface, and the starting point of its measurement all is from container bottom, to the core intersection of no fixation measuring reference point energy measurement not then.In addition, other liquid level instrument of domestic production mostly is the pointer indication greatly, and error is big, and reading is not directly perceived.
The purpose of this utility model is to provide a kind of liquid-level interface monitor, and this instrument both can be used for measuring the liquid level under the general occasion, also can measure two kinds of proportion different liquids liquid level overall heights and liquid surface thickness.
The utility model above-mentioned purpose is to realize like this.
A kind of liquid-level interface monitor, this instrument comprises that the outside is equipped with the sensor of magnetic float, be connected with display instrument by terminal box and cable, it is characterized in that said sensor shell external body is respectively installed with magnetic float and following magnetic float, be assemblied in the tongue tube and corresponding the fusing of series connection barrier film resistance of sensor housing inside.This monitor spreads out of reflection core intersection and two kinds of impedance signals of liquid level overall height simultaneously with a sensor.This monitor has two magnetic floats, because its proportion difference, one of them magnetic float can only float between the water-oil interface, another magnetic float floats over the upper surface of oil, float over the magnetic float of oil reservoir upper surface, make sensor spread out of the impedance signal that adapts with the liquid level overall height, and float over the magnetic float between the profit, make sensor spread out of the impedance signal that adapts with core intersection.Two kinds of impedance signals that this monitor uses a triple cable that sensor is sent pass to display instrument simultaneously; again by holding circuit steady current setter; circuit such as insulating power supply show core intersection and liquid level overall height respectively by digital voltmeter after converting two impedance signals to voltage signal respectively.From schematic diagram as can be seen, last magnetic float is with tongue tube K
nShort circuit, K
nAbove R
1+ R
2+ ... R
nThe resistance size reflected liquid level, following magnetic float is with tongue tube K
mShort circuit, K
mAnd K
nBetween the resistance number fallen by short circuit how much reflected core intersection, through R～V conversion, convert resistance signal to voltage signal again, promptly available digital voltmeter shows liquid level and core intersection.
The utility model and existing liquid level instrument relatively have following advantage:
(1) this instrument can show the core intersection of no fixation measuring reference point, has solved the technical barrier that core intersection is measured.
(2) every of other liquid level instrument of domestic production can only show parameter of liquid level (or interface), and this instrument can not only show core intersection, can also show the liquid level overall height in the storage tank simultaneously, has realized dual-use.
(3) other liquid level instrument of domestic production mostly is the pointer indication greatly, and error is big, and reading is not directly perceived, and this instrument is the numeral demonstration, and reading is directly perceived, and error is little.
Introduce the utility model specific embodiment below in conjunction with accompanying drawing.
Fig. 1 forms structural representation for the utility model.
Fig. 2 is the utility model in-site measurement assembly structure synoptic diagram.
Fig. 3 is the utility model sensor construction principle schematic.
In the present embodiment; each tongue tube 7 and series connection all-in-one-piece metal diaphragm resistance 8 fuse; be installed in and constitute sensor 1 in the metal coating tube shell; this sensor 1 outside is set with upper and lower two magnetic floats 3,2; sensor 1 upper end is provided with terminal box 4; this terminal box is connected with digital indicator 6 by a triple cable 5, and display instrument 6 can be selected digital voltmeter for use, specifically uses mounting structure and principle schematic referring to Fig. 2, shown in Figure 3.
Claims (3)
1. liquid-level interface monitor, this instrument comprises that the outside is equipped with magnetic float [2,3] sensor [1], be connected with display instrument [6] by terminal box [4] and cable [5], it is characterized in that said sensor [1] outside is respectively installed with magnetic float [3] and following magnetic float [2], be assemblied in the tongue tube [7] and corresponding the fusing of series connection barrier film resistance [8] of sensor housing inside.
2. monitor according to claim 1 is characterized in that said sensor [1] is connected with digital indicator [6] by a triple cable [5].
3. monitor according to claim 1 and 2 is characterized in that said display instrument [6] is a digital voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225321 CN2274765Y (en) | 1996-01-30 | 1996-01-30 | Level monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225321 CN2274765Y (en) | 1996-01-30 | 1996-01-30 | Level monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2274765Y true CN2274765Y (en) | 1998-02-18 |
Family
ID=33904032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225321 Expired - Fee Related CN2274765Y (en) | 1996-01-30 | 1996-01-30 | Level monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2274765Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019B (en) * | 2008-10-31 | 2012-12-19 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN103961906A (en) * | 2013-01-31 | 2014-08-06 | 韩明海 | Dynamic-static state oil-water separation apparatus and oil-water separation method |
| CN104930961A (en) * | 2015-06-03 | 2015-09-23 | 大连海事大学 | Liquid cabinet oil layer thickness detection apparatus and measuring method thereof |
-
1996
- 1996-01-30 CN CN 96225321 patent/CN2274765Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019B (en) * | 2008-10-31 | 2012-12-19 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN103961906A (en) * | 2013-01-31 | 2014-08-06 | 韩明海 | Dynamic-static state oil-water separation apparatus and oil-water separation method |
| WO2014117666A1 (en) * | 2013-01-31 | 2014-08-07 | 张家港易化设备科技有限公司 | Dynamic and static oil-water separation apparatus and oil-water separation method |
| CN104930961A (en) * | 2015-06-03 | 2015-09-23 | 大连海事大学 | Liquid cabinet oil layer thickness detection apparatus and measuring method thereof |
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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 |