CN217155529U - Steam compensation device for guided wave radar liquid level meter - Google Patents
Steam compensation device for guided wave radar liquid level meter Download PDFInfo
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- CN217155529U CN217155529U CN202122356605.2U CN202122356605U CN217155529U CN 217155529 U CN217155529 U CN 217155529U CN 202122356605 U CN202122356605 U CN 202122356605U CN 217155529 U CN217155529 U CN 217155529U
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Abstract
The utility model belongs to the technical field of the guided wave radar level gauge technique and specifically relates to a steam compensation device for guided wave radar level gauge, including interconnect's measuring subassembly and instrument box on the spot, measuring subassembly is including the signal coupler, catch water, steam identification sensor and the level sensor that connect gradually, instrument box includes the box on the spot, be equipped with steam measurement module, level measurement module, steam compensation analysis module and liquid level calculation output module in the box, steam identification sensor is used for gathering the change information of steam and temperature to transmit for steam measurement module, form final compensation parameter. The utility model discloses a mode that steam identification sensor, steam measurement module and steam compensation analysis module combined together has increased sampling precision and reference precision, makes the liquid level compensation compare traditional method more accurate.
Description
Technical Field
The utility model belongs to the technical field of the guided wave radar level gauge technique and specifically relates to a steam compensation arrangement for guided wave radar level gauge.
Background
With the development of modern industrial production activities, the stable and reliable measurement of the height of the liquid level is very critical. As a novel intelligent instrument, the guided wave radar liquid level meter has the characteristics of high precision and high reliability based on a time travel principle, a time domain reflection principle and an equivalent sampling principle, and the in-situ instrument box part and the in-situ measurement component part of the guided wave radar liquid level meter can be remotely measured by adopting cable connection, so that the guided wave radar liquid level meter is suitable for complex and severe working conditions such as high temperature and high pressure, high irradiation, low dielectric constant liquid and the like, and the guided wave radar liquid level meter is applied more and more widely.
The problems of the guided wave radar liquid level meter are as follows: when the working condition of the guided wave radar liquid level meter is a variable temperature and pressure working condition, the steam generated in the working condition can slow down the propagation speed of the electromagnetic wave signal of the guided wave radar liquid level meter, and a larger measurement error is generated. Although the traditional steam compensation mode can compensate the steam environment to a certain degree, when the temperature and the pressure change circularly, the measurement precision cannot reach the measurement precision under the normal working condition.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a steam compensation device for guided wave radar level gauge has solved guided wave radar level gauge and has carried out measuring measurement accuracy problem under alternating temperature vary voltage operating mode.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a steam compensation arrangement for guided wave radar level gauge, includes interconnect's measuring component and instrument box on the spot, measuring component is including the signal coupler, catch water, steam identification sensor and the level sensor that connect gradually, instrument box includes the box on the spot, be equipped with steam measuring module, liquid level measurement module, steam compensation analysis module and liquid level calculation output module in the box, steam identification sensor is used for gathering the change information of steam and temperature to transmit for steam measuring module, form final compensation parameter.
Preferably, a coaxial cable is arranged between the measuring assembly and the instrument box on site.
And as optimization, the signal coupler, the steam-water separator, the steam identification sensor and the liquid level sensor are electrically connected.
The utility model has the advantages that: the utility model provides a pair of a steam compensation arrangement for guided wave radar level gauge adopts the mode that steam identification sensor, steam measurement module and steam compensation analysis module combined together, has increased sampling precision and reference precision, makes the liquid level compensation compare traditional approach more accurate.
Drawings
FIG. 1 is a schematic structural view of the installation measurement assembly of the present invention;
wherein: 1. signal coupler, 2, catch water, 3, steam identification sensor, 4, level sensor.
FIG. 2 is a schematic view of the internal working flow of the instrument box in situ according to the present invention;
fig. 3 is a schematic view of the steam compensation process of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate that the directions of movement of the device or element are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
1-3, a vapor compensation device for a guided wave radar level gauge comprises a measurement assembly and an on-site instrument box connected with each other, and a coaxial cable is arranged between the measurement assembly and the on-site instrument box.
The measuring component comprises a signal coupler 1, a steam-water separator 2, a steam identification sensor 3 and a liquid level sensor 4 which are sequentially connected, and the signal coupler 1, the steam-water separator 2, the steam identification sensor 3 and the liquid level sensor 4 are electrically connected. The liquid level sensor 4 is responsible for collecting liquid level data, the steam identification sensor 3 is responsible for collecting steam and temperature data, the steam-water separator 2 mainly has the functions of steam-water separation and heat insulation, and the signal coupler 1 is responsible for coupling transmission of radio frequency signals.
Instrument box includes the box on the spot, be equipped with steam measurement module, liquid level measurement module, steam compensation analysis module and liquid level calculation output module in the box, steam measurement module is responsible for temperature and steam data processing, and liquid level measurement module is responsible for liquid level data processing, and steam compensation analysis module is responsible for the reference of steam compensation parameter and calculates, and liquid level calculation output module main function is according to steam compensation value recalculates the liquid level value and exports the calculated value.
The steam identification sensor 3 collects the information of steam and temperature change, transmits the information to the local instrument box, carries out reference calculation with a steam data table of a reference database after the information is processed and calculated by the steam measurement module, and increases the reference quantity on the basis of dynamic compensation parameters to form final compensation parameters.
The working principle is as follows: the utility model provides a steam compensation device for guided wave radar level gauge, during the use, steam and temperature data are gathered to steam identification sensor 3, and level sensor 4 gathers liquid level data, and the sampling data is sent respectively to the steam measurement module and the liquid level measurement module of instrument box on the spot through signal coupler 1; the steam measurement module processes steam sampling data, samples and calculates initial compensation values of ambient temperature and steam, the liquid level measurement module processes liquid level sampling data, the sampling data are subjected to Butterworth filtering processing during processing, then position correction is carried out on characteristic points by using a least square method, and then process quantities of steam compensation values and liquid level values are obtained through weight calculation of new and old data; the steam compensation analysis module calculates a steam compensation value by comparing the processed steam and liquid level data with the data of the reference database, and corrects the nonlinear component of the process quantity of the steam compensation value by using the reference data of the reference database, so that the compensation precision under the temperature and pressure changing environment is improved; and the liquid level calculation output module recalculates the liquid level value under the working conditions of temperature and pressure change according to the steam compensation value and outputs a calculated value.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (3)
1. A steam compensation device for a guided wave radar level gauge, characterized in that: including interconnect's measuring subassembly and instrument box on spot, measuring subassembly is including signal coupler, catch water, steam identification sensor and the level sensor who connects gradually, instrument box on spot includes the box, be equipped with steam measurement module, liquid level measurement module, steam compensation analysis module and liquid level calculation output module in the box, steam identification sensor is used for gathering the change information of steam and temperature to transmit for steam measurement module, form final compensation parameter.
2. The vapor compensation device for a guided wave radar level gauge according to claim 1, characterized in that: and a coaxial cable is arranged between the measuring assembly and the local instrument box.
3. The vapor compensation device for a guided wave radar level gauge according to claim 1, characterized in that: and the signal coupler, the steam-water separator, the steam identification sensor and the liquid level sensor are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356605.2U CN217155529U (en) | 2021-09-28 | 2021-09-28 | Steam compensation device for guided wave radar liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122356605.2U CN217155529U (en) | 2021-09-28 | 2021-09-28 | Steam compensation device for guided wave radar liquid level meter |
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| CN217155529U true CN217155529U (en) | 2022-08-09 |
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| CN202122356605.2U Active CN217155529U (en) | 2021-09-28 | 2021-09-28 | Steam compensation device for guided wave radar liquid level meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429208A (en) * | 2023-06-14 | 2023-07-14 | 福建福清核电有限公司 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
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2021
- 2021-09-28 CN CN202122356605.2U patent/CN217155529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429208A (en) * | 2023-06-14 | 2023-07-14 | 福建福清核电有限公司 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
| CN116429208B (en) * | 2023-06-14 | 2023-10-20 | 福建福清核电有限公司 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
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