CN86203418U - Penetrative liquid level indicator - Google Patents
Penetrative liquid level indicator Download PDFInfo
- Publication number
- CN86203418U CN86203418U CN 86203418 CN86203418U CN86203418U CN 86203418 U CN86203418 U CN 86203418U CN 86203418 CN86203418 CN 86203418 CN 86203418 U CN86203418 U CN 86203418U CN 86203418 U CN86203418 U CN 86203418U
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- CN
- China
- Prior art keywords
- liquid
- liquid level
- glass
- gauge
- gauge glass
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- 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 - Lifetime
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Abstract
The utility model provides a novel penetrative liquid level indicator used for a liquid preserving container especially for a boiler. A prism is arranged at the back water level glass of the glass plate liquid level indicator which contacts the liquid, and a light filter, a light source and a reflecting plate are arranged behind the back water level glass. Because the refractive index of the liquid is different from that of the gas, the reflecting surface of the light filter and that of the reflecting plate have different colors, so the effect that liquid and gas present different colors on the occasion of observation appears. Therefore, a reliable device which determines the liquid level and discriminates the status in the liquid level indicator is provided for the liquid preserving containers.
Description
The utility model relates to a kind of for the storage liquid container, particularly the transmission type liquid level meter of boiler of feeding use.
A kind of horizontal cross of known transmission type liquid level meter as shown in Figure 1.Preceding gauge glass (2) is fixed on the main body (3) by bolt (6) by pressing plate (1) (5) at a distance of parallel at certain interval ground with back gauge glass (4), main body (3) has the hole (9) of a strip, with the perpendicular direction of hole (9) axis relative two holes (8) are arranged, they link to each other with liquid container by connecting leg, and liquid is by hole (8) ostium (9).For liquid is spilt, gauge glass (2) seals hole (9) by sealing gasket (7) with (4).This promptly is the glass plate type liquid level gauge, and this liquid level gauge is not owing to there is the illumination device, and the observer needs the light by gauge glass (4) after the indoor luminaire input when the forward observation of preceding gauge glass (2), can observe the liquid level in the liquid level gauge.With the supporting use of boiler the time, because water and gas are the water white transparency medium, thereby water level is not easily distinguishable, and especially when in the liquid level gauge being water or when being gas entirely entirely, can not determine that then which kind of state inside is.For other colourless transparent liquid, or the transparency liquid with light color, when observing liquid level, there is above-mentioned deficiency too.
For overcoming this deficiency, propose among the US Patent specification USP3128626 to make to constitute certain angle between two blocks of gauge glasses, and place cylindrical mirror, Red lightscreening plate, the scheme of green color filter and light source in the gauge glass back.Because liquids and gases have different refractive indexes, when being gas between two blocks of gauge glasses, the observer can look at Red lightscreening plate straight; And when being liquid between two blocks of gauge glasses, because refraction action, the observer only can see the green color filter adjacent with Red lightscreening plate.Be green, the effect that gas takes on a red color so liquid in liquid level gauge, occurs.Thereby can distinguish the state in the liquid level gauge brightly, and can determine liquid level reliably.This liquid level gauge is called double colored indicator.When this scheme of enforcement, following deficiency is arranged:
1, because the asymmetry of optical system, cause observed Red lightscreening plate resemble with the resembling of green color filter about the phenomenon of dislocation.
2, owing between two blocks of gauge glasses certain angle is arranged, compare with the glass plate type liquid level gauge, size of main body is big, complex structure.
3, owing to increased cylindrical mirror, elements such as optical filter and corresponding governor motion thereof, thus make the cost increase, thus limited this device applying on medium small boiler.
The purpose of this utility model is: a kind of improved transmission type liquid level meter is provided, this liquid level gauge increases some optical elements on original glass plate type liquid level gauge, make it have double colored indicator and can make gas and liquid present the effect of two kinds of different colours, and can overcome the deficiency of above-mentioned double colored indicator.
The utility model is achieved in that on the back gauge glass of glass plate type liquid level gauge, increases a mirror with the liquid contact position, so just makes two spaces between gauge glass have the shape of mirror.Optical filter, light source and reflector are placed in rear at the back gauge glass.By refraction action, when being liquid in the liquid level gauge, the observer can see the color of optical filter; And when being gas in the liquid level gauge, the observer sees is color on the reflector reflective surface, thereby has realized that when observing, liquid and gas present the purpose of two kinds of different colours.The mirror can be three mirrors, also can be V-arrangement mirror, and for the surface that makes three mirrors has better face shape and smooth finish, three mirrors also can separate certain distance with the back gauge glass.The color of optical filter and reflective surface can be decided according to the kind of the liquid of storing in the container.As with the supporting use of boiler the time, optical filter can adopt green, and reflective surface can adopt redness, water at this moment can occur and be green, the effect that vapour takes on a red color.Light source is preferably selected the tubular gas charging source for use, and it has advantages such as power consumption is low, and observed colour brightness is even.
The utility model only needs to change the back gauge glass in the known glass plate type liquid level gauge into gauge glass that another piece has the mirror, implements simple especially.Additional optical filter, light source and reflector can be installed in the lighting case, hang on the pressing plate of gauge glass behind the liquid level gauge compact overall structure.Optical system is symmetrical, and does not need cylindrical mirror and regulating device, so overcome the deficiency of above-mentioned double colored indicator.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 2 is the horizontal sectional drawing according to optical element in a kind of transmission type liquid level meter that the utility model proposes.
Describe details and working condition in detail below in conjunction with Fig. 2 according to the concrete device that the utility model proposes.
This device comprises preceding gauge glass (2), back gauge glass (4), and optical filter (11), light source (12) and reflector (13) have one three mirror (10) on back gauge glass (4), and all optical elements are with respect to the I-I rotational symmetry.Because the refractive index difference of liquids and gases, when being liquid in the liquid level gauge, the observer is by preceding gauge glass (2), liquid, three mirrors (10) and afterwards gauge glass (4) sees is optical filter (11); And when being gas in the liquid level gauge, what the observer saw by preceding gauge glass (2), gas, three mirrors (10) and back gauge glass (4) is reflective surface on the reflector (13) .What see by the ab face on the three mirrors (10) is AB face on the reflector, and what see by the ac face on the three mirrors (10) is CD face on the reflector (13) .Thereby in liquid level gauge, present the effect that liquids and gases have different colours.
In order to make observed color soft, a face of optical filter (11) preferably carries out frosted to be handled, and the reflective surface on the reflector (13) also should spray matt paint.
Fig. 3 and Fig., 4 are the other two kinds of enforcement cases under the same design.Scheme among Fig., 3 is that three mirrors, (10) and back gauge glass, (4) are separated certain distance.Scheme among Fig. 4 is on back gauge glass, (4) a V-arrangement mirror, (10) to be arranged; When being gas in the liquid level gauge; What see by the ab face on the V-arrangement mirror (10) is CD face on the reflector (13), and what see by the ac face on the V-arrangement mirror (10) is AB face on the reflector (13) .These two kinds of schemes also can reach same effect.
Claims (3)
1, for the storage liquid container, the transmission type liquid level meter that uses of boiler of feeding particularly, this device has preceding gauge glass [2], back gauge glass [4], feature of the present utility model is: go up and there is a prism [10] the liquid contact position at back gauge glass [4], and at the configuration of the rear of back gauge glass [4] optical filter [11], light source [12] and reflector [13].
2, device according to claim, 1 is characterized in that mirror (10) is three mirrors or V-type mirror.
3, it is characterized in that three mirrors (10) and back gauge glass (4) can separate certain distance according to claim, 1,2 described devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203418 CN86203418U (en) | 1986-05-31 | 1986-05-31 | Penetrative liquid level indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203418 CN86203418U (en) | 1986-05-31 | 1986-05-31 | Penetrative liquid level indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86203418U true CN86203418U (en) | 1987-06-03 |
Family
ID=4806719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86203418 Expired - Lifetime CN86203418U (en) | 1986-05-31 | 1986-05-31 | Penetrative liquid level indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86203418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369419A (en) * | 2009-03-26 | 2012-03-07 | 埃尔比国际有限公司 | A device for detecting the level of a liquid in a container |
-
1986
- 1986-05-31 CN CN 86203418 patent/CN86203418U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369419A (en) * | 2009-03-26 | 2012-03-07 | 埃尔比国际有限公司 | A device for detecting the level of a liquid in a container |
| CN102369419B (en) * | 2009-03-26 | 2014-03-05 | 埃尔比国际有限公司 | Device for detecting level of liquid in container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB04 | Change of attorney information |
Patent agency after: Military Industry Patent Agency of State Committee of Machine-Building Patent agency before: Patent Agency of Ministry of Ordnance Industry |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENT AGENCY; FROM: WEAPON INDUSTRY MINISTRYSTANDARD PATENT AGENCY TO: STATE MACHINERY COMMITTEE MILITARY INDUSTRY PATENT OFFICE |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |