CN202158887U - Pressure pneumatic type liquid level meter - Google Patents
Pressure pneumatic type liquid level meter Download PDFInfo
- Publication number
- CN202158887U CN202158887U CN2011202372496U CN201120237249U CN202158887U CN 202158887 U CN202158887 U CN 202158887U CN 2011202372496 U CN2011202372496 U CN 2011202372496U CN 201120237249 U CN201120237249 U CN 201120237249U CN 202158887 U CN202158887 U CN 202158887U
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- liquid level
- type liquid
- controller
- pressure
- display
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Abstract
A pressure pneumatic type liquid level meter comprises a controller and a display. A reducing valve, a pressure sensor, a flow limit valve, an air inlet and an air outlet are arranged in the controller. The air inlet is connected with the flow limit valve which is connected with the reducing valve, the reducing valve is directly connected with the pressure sensor which converts signals into electrical signals, and the pressure sensor is connected with the display. The pressure pneumatic type liquid level meter is mainly suitable for measuring indication system of fuel storage quantity of locomotives. The value can be displayed on a local display of an oil tank and a computer display of a long-distance locomotive. The controller is simple in interior structure and convenient to process and install. The liquid level meter is small in contour dimension and does not occupy installation position.
Description
Technical field
The utility model belongs to liquid level emasuring device, and particularly a kind of air pressing type liquid level appearance is that a kind of locomotive fuel oil reserves that mainly are applicable to are measured indication mechanism.
Background technology
The most inner structure of existing air blowing type liquid level appearance is complicated, and process and assemble is loaded down with trivial details, and profile is bigger, and required installation site is big, has limitation.
Summary of the invention
The utility model technical matters to be solved is: a kind of air pressing type liquid level appearance is provided, is applicable to locomotive fuel oil reserves measurement indication mechanism.Air pressing type liquid level appearance simple in structure, that profile is smart little.
The technical scheme of the utility model is:
A kind of air pressing type liquid level appearance is characterized in that: controller and display are arranged, reduction valve, pressure transducer, flow-limiting valve, air intake opening and gas outlet are arranged in the controller; Air intake opening connects flow-limiting valve, and flow-limiting valve connects reduction valve, and reduction valve directly connects pressure transducer, is electric signal by pressure transducer with conversion of signals, and pressure transducer connects display.
Cover the connection pressure transducer at reduction valve, pressure transducer and reduction valve are one.
The utility model characteristics are:
On the basis of satisfying the various technical conditions of most of air blowing type liquid level appearance, change its inner structure, make it simple in structure, process and assemble is convenient, and profile is less, and is flexible for installation.
Shape: physical dimension: 250 (length) * 160 (wide) * 70 (height); Mounting hole: 4-φ 6 can change the position of mounting hole according to different installation sites.
Description of drawings
Fig. 1 is the external structure synoptic diagram of air pressing type liquid level appearance;
Fig. 2 is an air pressing type liquid level appearance controller inner structure schematic diagram.
Among the figure:: 1.1, display, 1.2, controller, 2.1, reduction valve, 2.2, pressure transducer, 2.3, flow-limiting valve, 2.4, air intake opening, 2.5, the gas outlet.
Embodiment
Like Fig. 1, the air pressing type liquid level appearance shown in 2, its structure: adopt reduction valve, flow restriction and pressure transducer,, demonstrate the liquid level value through surveying air stream outlet pressure/pressure.This air pressing type liquid level appearance has controller and display, and reduction valve, pressure transducer, flow-limiting valve, air intake opening and gas outlet are arranged in the controller; Air intake opening connects flow-limiting valve, and flow-limiting valve connects reduction valve, and reduction valve directly connects pressure transducer, is electric signal by pressure transducer with conversion of signals, and pressure transducer connects display.Cover the connection pressure transducer at reduction valve, pressure transducer and reduction valve are one.
When being installed into tracheae and escape pipe, to distinguish the mark of air intake opening and gas outlet.Air intake opening and gas outlet have been carried out tangible sign, will not work if equipment has been installed reverse.
This air pressing type liquid level appearance, it is made up of gas blow pipe foaming in the local display of system controller and fuel tank, the fuel tank mouthful etc.This product is that a kind of locomotive fuel oil reserves that mainly are applicable to are measured indication mechanism.Test is sent into the reduction valve decompression with the high pressure dry air that can compensate consumption automatically after filtrator filters, flow regulator is regulated the restriction test automatically and used airshed, can obtain test and use dry blowing gas stream.This air-flow is admitted to the locomotive fuel tank gas blow pipe and sends into pressure unit simultaneously.When air-flow overflowed in the fuel tank gas blow pipe, its top hole pressure/pressure was proportional to steam jet in the fuel reserve tank and multiply by density of liquid to the height of liquid level.Pressure unit transfer pressure value is an electric signal, and processing obtains the value (liquid level) of steam jet to the height of liquid level through the control chip doing mathematics.This numerical value can be shown in the local display of fuel tank, remote locomotive graphoscope.The utility model characteristics are: the controller inner structure is simple, convenient processing and installation; Physical dimension is small and exquisite, does not account for the installation site.Can be installed in the place of any suitable test.When observing the liquid level variation, we only need the numerical value of observation display to get final product, and this liquid level appearance has strengthened the convenience of using.
Operating principle:
Test is sent into the reduction valve decompression with the high pressure dry air that can compensate consumption automatically after filtrator filters, flow regulator is regulated test automatically and used airshed, can obtain test and use dry blowing gas stream.This air-flow is admitted to the locomotive fuel tank gas blow pipe and sends into pressure unit simultaneously.When air-flow overflowed in the fuel tank gas blow pipe, its top hole pressure/pressure was proportional to steam jet in the fuel reserve tank and multiply by density of liquid to the height of liquid level.Pressure unit transfer pressure value is an electric signal, and processing obtains the value (liquid level) of steam jet to the height of liquid level through the control chip doing mathematics.This numerical value can be shown in the local display of controller, the local display of fuel tank, remote locomotive graphoscope composition.
Handle the value of liquid level and the integration of the effective two-dimensional section function of corresponding fuel tank, can obtain the volume of residual fuel/liquid.This numerical value can be shown in the local display of controller, the local display of fuel tank, remote locomotive graphoscope composition.
This air pressing type liquid level appearance is a simple structure with the structural change of original complicacy, has innerly only connected decompression flow-limiting valve and pressure transducer with three tygon four fluorine tubes.
Range ability: 0-1200mm water, or the good fluidity fluid of equal proportion with it.
Input gas: deposit pressure 0.03-2.5m3 cubic meter/hour.The pressure setting range is that 120% or the 0.15Mpa (newton/square millimeter) of full scale fluid pressure is to 200% full scale fluid pressure.Maximal value should be lower than 1.50Mpa.Maximum adjustable seamless power 1.0Mpa.
Controller input pressure scope: 0.6----0.95Mpa.
Decompressor output pressure scope: 0.01----0.08Mpa.(passive opening pressure:＞0.6M Pa)
Flow adjustment range: 20---60ml/min.
The pressurized air input: G 1/4 " the dextrorotation female screw.
The output of controller test air: G 1/4 " the dextrorotation female screw.
Electrical equipment input: direct supply DC110V (70V----140V)
Communication interface: 485.
V/P pressure liquid level converter: MIDA-MG-70-0,1/25kPa (Russia).
Power supply 5-12VDC.
Full scale 25.00 ± 1.00mV.
Precision (comprehensive NL, H, R) %FS ± 0.03.
Operating ambient temperature :-40 ℃----85 ℃.Storage :-55 ℃-----125 ℃.
Claims (2)
1. an air pressing type liquid level appearance is characterized in that: controller and display are arranged, reduction valve, pressure transducer, flow-limiting valve, air intake opening and gas outlet are arranged in the controller; Air intake opening connects flow-limiting valve, and flow-limiting valve connects reduction valve, and reduction valve directly connects pressure transducer, is electric signal by pressure transducer with conversion of signals, and pressure transducer connects display.
2. air pressing type liquid level appearance according to claim 1 is characterized in that: cover the connection pressure transducer at reduction valve, pressure transducer and reduction valve are one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202372496U CN202158887U (en) | 2011-07-07 | 2011-07-07 | Pressure pneumatic type liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202372496U CN202158887U (en) | 2011-07-07 | 2011-07-07 | Pressure pneumatic type liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158887U true CN202158887U (en) | 2012-03-07 |
Family
ID=45766521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202372496U Expired - Lifetime CN202158887U (en) | 2011-07-07 | 2011-07-07 | Pressure pneumatic type liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791979A (en) * | 2014-01-25 | 2014-05-14 | 长城汽车股份有限公司 | High-precision fuel tank fuel quantity measuring device |
| CN104655235A (en) * | 2015-01-30 | 2015-05-27 | 上海和伍新材料科技有限公司 | Device and method for detecting depth of water in ultrasonic detection equipment |
-
2011
- 2011-07-07 CN CN2011202372496U patent/CN202158887U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791979A (en) * | 2014-01-25 | 2014-05-14 | 长城汽车股份有限公司 | High-precision fuel tank fuel quantity measuring device |
| CN103791979B (en) * | 2014-01-25 | 2017-01-11 | 长城汽车股份有限公司 | High-precision fuel tank fuel quantity measuring device |
| CN104655235A (en) * | 2015-01-30 | 2015-05-27 | 上海和伍新材料科技有限公司 | Device and method for detecting depth of water in ultrasonic detection equipment |
| CN104655235B (en) * | 2015-01-30 | 2017-10-13 | 上海和伍精密仪器股份有限公司 | Depth of water detection means and method in ultrasonic detecting equipment |
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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: 20120307 |