Liquid level measuring method, device and system, storage medium and processor

A liquid level measurement device and liquid level measurement technology, which are applied in directions such as displaying liquid level indicators through pressure measurement, can solve the problems of reduced detection accuracy and greater influence of gas density, and achieve the effect of improving detection accuracy

Inactive Publication Date: 2018-11-09
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Embodiments of the present invention provide a liquid level measurement method, device, system, storage medium, and processor, to at least solve the problem of liquid level measurement by a differential pressure transmitter that is more affected by the density of the liquid and the gas above the liquid in the prior art. Large, technical problems that lead to lower detection accuracy

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  • Liquid level measuring method, device and system, storage medium and processor
  • Liquid level measuring method, device and system, storage medium and processor
  • Liquid level measuring method, device and system, storage medium and processor

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Embodiment 1

[0034] According to an embodiment of the present invention, an embodiment of a liquid level measurement method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0035] figure 1 is a flow chart of a liquid level measurement method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0036] In step S102, the first liquid level information of the current liquid level is obtained through the image liquid level measuring device, and the first differential pressure information of the current liquid level is obtained through the differential pressure transmitter.

[0037] Specifically, the image liquid...

Embodiment 2

[0143] According to an embodiment of the present invention, an embodiment of a liquid level measuring device is provided.

[0144] Figure 6 is a schematic diagram of a liquid level measuring device according to an embodiment of the present invention, such as Figure 6 As shown, the device includes:

[0145] The acquiring module 61 is configured to acquire the first liquid level information of the current liquid level through the image liquid level measuring device, and acquire the first differential pressure information of the current liquid level through the differential pressure transmitter.

[0146] Specifically, the image liquid level measuring device can be connected to the differential pressure transmitter through RS485, and the image liquid level measuring device transmits the acquired first liquid level information to the differential pressure transmitter through the RS485 interface.

[0147] A matching module 63, configured to match the first differential pressure ...

Embodiment 3

[0154] According to an embodiment of the present invention, an embodiment of a liquid level measuring system is provided.

[0155] Figure 7 is a schematic diagram of a liquid level measurement system according to an embodiment of the present invention, such as Figure 7 As shown, the system includes: an image liquid level measuring device 71 and a differential pressure transmitter 73 .

[0156] Wherein, the image liquid level measurement device 71 is used to obtain the first liquid level information of the current liquid level; the differential pressure transmitter 73 is connected with the image liquid level measurement device, and is used to obtain the first differential pressure information of the current liquid level, and The first differential pressure information is matched with the first liquid level information. If the first differential pressure information fails to match the first liquid level information, the first zero point and the first range of the differential...

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Abstract

The invention discloses a liquid level measuring method, device and system, a storage medium and a processor. The method comprises following steps: the first liquid level information of the current liquid level is obtained by an image liquid level measuring device, and the first differential pressure information of the current liquid level is obtained by a differential pressure transmitter; the first differential pressure information is matched with the first liquid level information; if the first differential pressure information fails to match the first liquid level information, the first zero point and the first range of the differential pressure transmitter are adjusted; and actual liquid level information of the current liquid level is obtained according to the adjusted first zero point, the adjusted first range and the first differential pressure information; if the first differential pressure information and the first liquid level information are successfully matched, the actualliquid level information of the current liquid level is obtained according to the first zero point, the first range, and the first differential pressure information. The invention solves the technical problem that the liquid level measurement by the differential pressure transmitter is greatly affected by the density of the liquid and the gas above the liquid in the prior art, and the detection precision is lowered.

Description

technical field [0001] The invention relates to the field of engineering measurement, in particular to a liquid level measurement method, device and system, a storage medium and a processor. Background technique [0002] At present, liquid level measuring instruments in the process industry can be divided into two types: contact type and non-contact type. [0003] The principle of the contact liquid level measuring instrument is: the sensor is in direct or indirect contact with the liquid in the measured container, and the detected pressure, differential pressure, torque and other signals are converted into measurable physical signals (capacitance, resistance, inductance, etc.) etc.), this type of detection instrument is mainly representative of float type, buoy type, differential pressure type, capacitive type, etc.: [0004] (1) Float type liquid level gauge: The principle of this type of instrument is to place a float with a specific density on the liquid surface. As the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/14
CPCG01F23/14
Inventor 刘子云梁杰灿潘静萍卢炜刘明鑫
Owner CHNA ENERGY INVESTMENT CORP LTD
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