CN117191140A - Liquid flow calculation method and related equipment - Google Patents
Liquid flow calculation method and related equipment Download PDFInfo
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Abstract
The application discloses a liquid flow calculation method and related equipment. The method comprises the following steps: applying a target electromagnetic field at a signal excitation position of a target channel and recording the magnetic field application time so as to enable a target liquid at the signal excitation position to generate a magnetization mark; detecting an arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark detection; acquiring a measurement time interval based on the magnetic field application time and the arrival time; and acquiring a target liquid flow rate corresponding to the target region based on the signal excitation position, the signal detection position, the measurement time interval and the fluid cross-sectional area of the target liquid. The application provides a liquid flow detection method which is non-contact and low in cost and can not interfere and influence caused by medium contact in a pipeline.
Description
Technical Field
The present disclosure relates to the field of measurement technologies, and more particularly, to a method and related apparatus for calculating a liquid flow.
Background
The current market has a large number of flowmeters applied to drainage pipelines, and a large number of flowmeters including electromagnetic flowmeters and Doppler flowmeters are applied. The electromagnetic flowmeter can measure the flow of the liquid medium under the condition of full pipe flow, and the measured liquid medium contains a large amount of extreme cases of bubbles in the condition of non-full pipe, and the water flow is oscillatory or spirally flows under the condition of non-full pipe, so that the deviation between the actual flow value and the monitoring value is larger. Therefore, the existing electromagnetic flowmeter must be in a full pipe condition to ensure the measurement accuracy. Unstable water surface or water spray bubbles can cause large fluctuation of flow measurement. The electromagnetic flowmeter adopts non-contact measurement, the precision is higher, and when the pipe diameter is larger than DN300, the larger the pipe diameter to be measured is, the larger the body type of the electromagnetic flowmeter needs to be matched with the pipe diameter to be measured, therefore, the higher the body type is, the higher the price is, and when the electromagnetic flowmeter is used in an underground environment, the installation difficulty is greatly improved, so that the electromagnetic flowmeter is greatly restricted to be installed on a large-caliber drainage pipeline.
When measuring flow in a large pipeline, a Doppler flowmeter is generally selected, but the Doppler flowmeter is installed at the bottom of a drainage pipeline, the sediment amount in sewage is large, the sediment can block the probe part of the flowmeter, and the instrument is invalid, so that the flowmeter needs to be frequently maintained and overhauled, and otherwise, the flowmeter cannot be used.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to provide a more reasonable and convenient flow measurement and calculation mode, in a first aspect, the application provides a liquid flow calculation method, which comprises the following steps:
applying a target electromagnetic field at a signal excitation position of a target channel and recording the magnetic field application time so as to enable a target liquid at the signal excitation position to generate a magnetization mark;
detecting an arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark detection, wherein the signal detection position is a downstream position corresponding to the signal excitation position in the target channel;
acquiring a measurement time interval based on the magnetic field application time and the arrival time;
and acquiring a target liquid flow rate corresponding to the target region based on the signal excitation position, the signal detection position, the measurement time interval and the fluid cross-sectional area of the target liquid.
Optionally, the detecting the arrival time of the target liquid based on the magnetization mark detection at the signal detection position of the target channel includes:
detecting real-time performance characteristic parameters of the target liquid at the target channel signal detection position;
and recording the arrival time under the condition that the difference value between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference value.
Optionally, the real-time performance characteristic parameter includes a real-time conductivity and a real-time PH, and the initial performance characteristic parameter includes an initial conductivity and an initial PH;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
recording the arrival time when the difference between the real-time conductivity and the initial conductivity is greater than a first preset difference and the difference between the real-time pH value and the initial pH value is greater than a second preset difference;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises real-time conductivity, and the initial performance characteristic parameter comprises initial conductivity;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
recording the arrival time when the difference between the real-time conductivity and the initial conductivity is greater than a first preset difference;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises a real-time PH value, and the initial performance characteristic parameter comprises an initial PH value;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
and recording the arrival time under the condition that the difference between the real-time PH value and the initial PH value is larger than a second preset difference value.
Optionally, the method further comprises:
and acquiring the fluid sectional area of the target liquid in the target channel in a target detection area, wherein the target detection area is an area with a distance smaller than a preset distance from the signal excitation position or the signal detection position.
Optionally, the acquiring the fluid cross-sectional area of the target liquid in the target channel in the target detection area includes:
acquiring the inner diameter of the target channel under the condition that the target channel is a pipeline;
acquiring the liquid level height of the target liquid in the target detection area in the target channel;
the fluid cross-sectional area is calculated based on the inner diameter and the fluid level height.
Optionally, the applying the target electromagnetic field at the signal excitation position of the target channel includes:
applying a periodic electromagnetic field to a signal excitation position of a target channel to generate a target electromagnetic field, wherein an excitation period of the periodic electromagnetic field is adjusted in real time according to the measurement time interval.
In a second aspect, the present application provides a liquid flow rate calculation device, comprising:
an excitation unit for applying a target electromagnetic field at a signal excitation position of the target channel and recording a magnetic field application time so that a target liquid at the signal excitation position generates a magnetization mark;
a detection unit configured to detect an arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark, the signal detection position being a downstream position corresponding to the signal excitation position in the target channel;
an acquisition unit configured to acquire a measurement time interval based on the magnetic field application time and the arrival time;
and a calculating unit for obtaining a target liquid flow rate corresponding to the target region based on the signal excitation position, the signal detection position, the measurement time interval, and the fluid cross-sectional area of the target liquid.
In a third aspect, the present application further provides a liquid flow detection system, including a liquid flow calculating device as described in the second aspect, further including:
an electromagnetic field generating device connected to the signal excitation position of the target channel for applying a target electromagnetic field and recording the magnetic field application time so as to generate a magnetization mark on the target liquid;
a liquid cross-sectional area detection device connected to the target detection area of the target channel, for detecting a fluid cross-sectional area of the target liquid in the target detection area of the target channel;
and a magnetization mark signal detection device connected to a signal detection position of the target channel, wherein the signal detection position is a position downstream of the signal excitation position in the target channel by a measurement interval distance, and is used for detecting and recording a mark arrival time of a target liquid with a magnetization mark.
Optionally, in the case that the target channel is a pipeline, the liquid cross-sectional area detecting device is a liquid level detecting device.
In a fourth aspect, an electronic device includes: a memory, a processor and a computer program stored in and executable on the processor for performing the steps of the liquid flow calculation method according to any one of the first aspects described above when the computer program stored in the memory is executed.
In summary, according to the liquid flow calculating method provided by the embodiment of the application, by applying an electromagnetic field to the target liquid, charged ions in the target liquid generate magnetization marks, the liquid generating the magnetization marks can generate larger changes in terms of physical and chemical properties, the time when the magnetization marks arrive can be determined by detecting the physical and chemical property changes of the target liquid at the downstream of the target passage, and the flow speed of the target liquid can be calculated according to the time when the magnetization phenomenon occurs, the time when the magnetization marks arrive, and the distance between the magnetization excitation position and the detection position, and the flow rate of the target liquid can be obtained by obtaining the fluid cross-sectional area of the target liquid in the target passage and the product of the speed and the cross-sectional area. The method provided by the embodiment of the application can cope with the restriction of various conditions of the flow of the non-full pipe and the existence of sediment in the liquid, has more abundant application scenes, and provides a liquid flow detection method which is used for non-contact measurement, can not interfere and influence caused by medium contact in the pipeline and has low cost.
Additional advantages, objects, and features of the application will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the application.
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Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the specification. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic flow chart of a liquid flow calculation method according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a liquid flow calculation device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a liquid flow detection system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a liquid flow calculating electronic device according to an embodiment of the present application.
Detailed Description
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
Referring to fig. 1, a flow chart of a liquid flow calculating method according to an embodiment of the application is shown, and the method includes:
s110, applying a target electromagnetic field at a signal excitation position of a target channel and recording the magnetic field application time so as to enable target liquid at the signal excitation position to generate a magnetization mark;
the target channel is an exemplary channel for measuring the flow of the liquid, and the target channel can be a semi-open ditch or a fully-closed pipeline. The target liquid is liquid flowing in the target channel, wherein the target liquid carries charged ions, and the target liquid can be domestic sewage, industrial wastewater, ionic solution, petroleum and other liquids, and the ionic concentration of the water body is higher, so the scheme is particularly suitable for the environments. However, the flow rate calculation method according to the present application can be applied as long as the liquid contains charged ions exceeding a certain concentration. The target liquid with charged ions is magnetized at the signal excitation position by applying a target electromagnetic field at the signal excitation position of the target channel and recording the application time of the magnetic field. It should be noted that the direction of the target electromagnetic field should be different from the direction of the liquid flow, and preferably be in a spatially perpendicular relationship with the direction of the liquid flow, so as to better excite the target liquid to generate magnetization marks.
S120, detecting the arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark detection, wherein the signal detection position is a downstream position corresponding to the signal excitation position in the target channel;
illustratively, a signal detection location is provided at a location in the target channel downstream of the signal excitation location, at which location the magnetization mark is detected, and the magnetization mark arrival time is recorded. Since the electromagnetic field will magnetize charged ions, and the magnetization will cause some performance parameters to change, by measuring the performance parameters in the flowing liquid, when a large change in the performance parameters of the target liquid is measured for a certain time, it can be determined that the magnetized mark excited by the electromagnetic field has arrived, and the time at this moment is recorded as the mark arrival time.
S130, acquiring a measurement time interval based on the magnetic field application time and the arrival time;
exemplary, the magnetic field time t recorded according to step S110 0 And the arrival time t of the magnetization mark recorded in step S120 1 The measurement time interval t can be obtained 1 -t 0 。
And S140, acquiring the target liquid flow corresponding to the target area based on the signal excitation position, the signal detection position, the measurement time interval and the fluid cross-sectional area of the target liquid.
Exemplary, the position X is excited according to the signal 0 Sum signal detection position X 1 The distance L between the signal excitation position and the signal detection position can be calculated, and it can be understood that in the case where the measurement position of the target channel is a straight line: l=x 1 -X 0 . In the case where the measurement position of the target channel is curved, L > (X 1 -X 0 ) The specific value of L can be the distance corresponding to the bit line of the target channel, namely the distance actually flowing through the target liquid in the target channel. The fluid cross-sectional area S of the target liquid may be obtained by an area measurement device, and when the cross-sectional shape of the target passage is a standard shape, such as a rectangle, a circle, etc., the fluid cross-sectional area S of the target liquid may be calculated by the cross-sectional shape through a method of measuring the height of the target liquid, and a specific method will not be described herein. Thus, the target liquid flow rate can be calculated by:
Q＝V*S＝L/(t 1 -t 0 )*S
in summary, according to the liquid flow testing method provided by the embodiment of the application, by applying an electromagnetic field to the target liquid, charged ions in the target liquid generate magnetization marks, the liquid generating the magnetization marks can generate larger changes in terms of physical and chemical properties, the time when the magnetization marks arrive can be determined by detecting when the changes occur at the downstream of the target passage, the flow speed of the target liquid can be calculated according to the time when the magnetization phenomenon occurs, and the flow of the target liquid can be obtained by obtaining the cross-sectional area of the fluid of the target liquid in the target passage and multiplying the flow speed by the cross-sectional area. The method provided by the embodiment of the application can cope with the restriction of various conditions of the flow of the non-full pipe and the existence of sediment in the liquid, has more abundant application scenes, and provides a liquid flow detection method which is used for non-contact measurement, can not interfere and influence caused by medium contact in the pipeline and has low cost.
In some examples, detecting the arrival time of the target liquid based on the magnetization mark detection at the signal detection position of the target channel includes:
detecting real-time performance characteristic parameters of the target liquid at the target channel signal detection position;
and recording the arrival time under the condition that the difference value between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference value.
In an exemplary embodiment, when the target liquid with the charged ions passes through the electromagnetic field, the electromagnetic field magnetizes the charged ions, and the magnetization causes some performance characteristic parameters to change, and by measuring the performance parameters in the flowing liquid in real time at the signal detection position, if the difference between the measured performance parameters of the target liquid and the initial performance characteristic parameters is greater than a preset difference, it can be determined that the magnetized target liquid has arrived, and the arrival time is recorded, so as to calculate the flow velocity of the target liquid in the target channel.
In some of the examples of the present application,
the real-time performance characteristic parameters comprise real-time conductivity and real-time PH value, and the initial performance characteristic parameters comprise initial conductivity and initial PH value;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
recording the arrival time when the difference between the real-time conductivity and the initial conductivity is greater than a first preset difference and the difference between the real-time pH value and the initial pH value is greater than a second preset difference;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises real-time conductivity, and the initial performance characteristic parameter comprises initial conductivity;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
recording the arrival time when the difference between the real-time conductivity and the initial conductivity is greater than a first preset difference;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises a real-time PH value, and the initial performance characteristic parameter comprises an initial PH value;
recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is greater than a preset difference, including:
and recording the arrival time under the condition that the difference between the real-time PH value and the initial PH value is larger than a second preset difference value.
For example, the real-time performance parameters include real-time conductivity and real-time PH, the initial performance characteristic parameters include initial conductivity and initial PH, the effects of magnetization phenomena of different liquids may be different, different differences exist in influences on the performance parameters for different types of target liquids, and arrival times are recorded according to the corresponding conditions selected by different types of liquids, which are as follows:
a, the difference value between the real-time conductivity and the initial conductivity is larger than a first preset difference value, and the difference value between the real-time PH value and the initial PH value is larger than a second preset difference value
B: the difference value between the real-time conductivity and the initial conductivity is larger than a first preset difference value;
c: the difference between the real-time pH value and the initial pH value is greater than a second preset difference.
For example: the first preset difference may be set to 10% and the second preset difference may be set to 1.
In some examples, the above method further comprises:
and acquiring the fluid sectional area of the target liquid in the target channel in a target detection area, wherein the target detection area is an area with a distance smaller than a preset distance from the signal excitation position or the signal detection position.
The area which is smaller than the preset distance from the signal excitation position or the signal detection position is taken as a target detection area, the preset distance can be adjusted in a targeted manner according to the flow channel diameter of the target channel, if the flow channel diameter is large, the preset distance can be increased, the fluid sectional area in the target detection area is taken as the fluid sectional area of the target channel, the fluid sectional area of the fluid flowing between the signal excitation position and the signal detection position can be well represented, and the accuracy of a calculation result can be ensured.
In some examples, the obtaining a fluid cross-sectional area of the target liquid in the target channel in the target detection region includes:
acquiring the inner diameter of the target channel under the condition that the target channel is a pipeline;
acquiring the liquid level height of the target liquid in the target detection area in the target channel;
the fluid cross-sectional area is calculated based on the inner diameter and the fluid level height.
For example, in the case that the target channel is a pipeline, the cross-sectional area of the liquid in the pipeline is in a fixed operation relationship, the liquid cross-sectional area detection device can be replaced by a liquid level detection device, and a drop-in type liquid level meter, an ultrasonic reflection liquid level meter and the like can be adopted for detecting the liquid level height H of the liquid level in the pipeline from the bottom of the pipeline in real time, and the target liquid cross-sectional area S is calculated according to the height H and the inner diameter D of the pipeline.
In some examples, the applying the target electromagnetic field at the signal excitation location of the target channel includes:
applying a periodic electromagnetic field to a signal excitation position of a target channel to generate a target electromagnetic field, wherein an excitation period of the periodic electromagnetic field is adjusted in real time according to the measurement time interval.
The electromagnetic field applied at the signal excitation position of the target channel is a periodic electromagnetic field, so as to continuously measure the flow of the target fluid in the target channel, however, the period of electromagnetic field excitation is adjusted pertinently according to the measurement time interval, the flow is proved to be faster when the measurement time interval is small, and the period of the periodic electromagnetic field is adjusted to be larger at the moment, so that the detection device is prevented from having lower precision, the magnetization mark excited by the magnetic field in the next period is continuously detected, or a plurality of magnetization marks excited by the magnetic field are skipped, and the calculated flow result is smaller than the actual flow. Conversely, the period of the electromagnetic field can be properly reduced due to the slower flow speed, so that the detection accuracy is improved.
In summary, according to the method provided by the embodiment of the application, the triggering period of the periodic electromagnetic field is adjusted in real time through measuring the time interval, namely the flow velocity, so that the influence of the flow velocity on the measurement precision can be avoided, and the accuracy of the flow calculation method is improved.
In a second aspect, referring to fig. 2, the present application provides a liquid flow calculating device 20, including:
an excitation unit 21 for applying a target electromagnetic field at a signal excitation position of the target channel and recording a magnetic field application time so that a target liquid at the signal excitation position generates a magnetization mark;
a detection unit 22 that detects an arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark, the signal detection position being a downstream position corresponding to the signal excitation position in the target channel;
an acquisition unit 23 for acquiring a measurement time interval based on the above-described magnetic field application time and the above-described arrival time;
a calculating unit 24 for obtaining a target liquid flow rate corresponding to the target region based on the signal excitation position, the signal detection position, the measurement time interval, and the fluid cross-sectional area of the target liquid.
In a third aspect, referring to fig. 3, the present application further proposes a liquid flow detection system 100, including a liquid flow calculating device 20 as described in the second aspect, further including:
an electromagnetic field generating device 30 connected to the signal excitation position of the target channel for applying a target electromagnetic field and recording a magnetic field application time so as to generate a magnetization mark on the target liquid;
a liquid cross-sectional area detecting device 40 connected to the target detection area of the target channel, for detecting a fluid cross-sectional area of the target liquid in the target detection area of the target channel;
a magnetization mark signal detection device 50 connected to a signal detection position of the target channel, the signal detection position being a position downstream of the signal excitation position in the target channel by a measurement gap distance, for detecting and recording a mark arrival time of a target liquid having a magnetization mark.
Illustratively, as shown in FIG. 3, the liquid flow rate detection system 100 includes a liquid flow rate calculation device 20, an electromagnetic field generation device 30, a liquid cross-sectional area detection device 40, and a magnetization mark signal detection device 50. The electromagnetic field generating device 30 is installed outside the target channel, which may be a pipeline with an inner diameter D, and periodically generates an electromagnetic field under the action of the pulse power supply, the period being T, and the direction of the electromagnetic field is perpendicular to the flow direction of the fluid in the pipeline as much as possible. Is mounted in a nearby location. Downstream of the electromagnetic field generating device 30, a magnetization mark signal detecting device 50 is installed at a position with a certain distance L, so that a real-time performance characteristic parameter of the target liquid in the pipeline can be detected in real time, and when the difference value of the real-time performance characteristic participation initial performance characteristic parameter is larger than a preset difference value, such as the change of conductivity or PH value, the change is recorded as the mark arrival time.
In some examples, where the target passage is a pipe, the liquid cross-sectional area detecting device 40 is a liquid level detecting device.
For example, in the case that the target channel is a pipeline, the cross-sectional area of the liquid in the pipeline is in a fixed operation relationship, the liquid cross-sectional area detection device can be replaced by a liquid level detection device, and a drop-in type liquid level meter, an ultrasonic reflection liquid level meter and the like can be adopted for detecting the liquid level height H of the liquid level in the pipeline from the bottom of the pipeline in real time, and the target liquid cross-sectional area S is calculated according to the height H and the inner diameter D of the pipeline.
As shown in fig. 4, the embodiment of the present application further provides an electronic device 300, including a memory 310, a processor 320, and a computer program 511 stored in the memory 320 and capable of running on the processor, where the processor 320 implements any of the steps of the method for calculating the liquid flow when executing the computer program 311.
Since the electronic device described in this embodiment is a device for implementing a liquid flow calculating apparatus in this embodiment of the present application, based on the method described in this embodiment of the present application, those skilled in the art can understand the specific implementation of the electronic device in this embodiment and various modifications thereof, so how the electronic device implements the method in this embodiment of the present application will not be described in detail herein, and only those devices employed by those skilled in the art to implement the method in this embodiment of the present application are included in the scope of the present application.
In a specific implementation, the computer program 311 may implement any of the embodiments corresponding to fig. 1 when executed by a processor.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application also provide a computer program product comprising computer software instructions which, when run on a processing device, cause the processing device to perform a flow of a liquid flow calculation method as in the corresponding embodiment of fig. 1.
The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be stored by a computer or data storage devices such as servers, data centers, etc. that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid State Disks (SSDs)), among others.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A liquid flow rate calculation method, comprising:
applying a target electromagnetic field at a signal excitation position of a target channel and recording the magnetic field application time so as to enable a target liquid at the signal excitation position to generate a magnetization mark;
detecting an arrival time of the target liquid at a signal detection position of the target channel based on the magnetization mark, wherein the signal detection position is a downstream position corresponding to the signal excitation position in the target channel;
acquiring a measurement time interval based on the magnetic field application time and the arrival time;
and acquiring the target liquid flow corresponding to the target region based on the signal excitation position, the signal detection position, the measurement time interval and the fluid cross-sectional area of the target liquid.
2. The method of claim 1, wherein detecting the arrival time of the target liquid at a signal detection location of the target channel based on the magnetization mark detection comprises:
detecting real-time performance characteristic parameters of the target liquid at the target channel signal detection position;
and recording the arrival time under the condition that the difference value between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference value.
3. The method of claim 2, wherein the real-time performance characteristic comprises real-time conductivity and real-time PH, and the initial performance characteristic comprises initial conductivity and initial PH;
and recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference, including:
recording the arrival time when the difference between the real-time conductivity and the initial conductivity is greater than a first preset difference and the difference between the real-time pH value and the initial pH value is greater than a second preset difference;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises a real-time conductivity, and the initial performance characteristic parameter comprises an initial conductivity;
and recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference, including:
recording the arrival time under the condition that the difference value between the real-time conductivity and the initial conductivity is larger than a first preset difference value;
or alternatively, the first and second heat exchangers may be,
the real-time performance characteristic parameter comprises a real-time PH value, and the initial performance characteristic parameter comprises an initial PH value;
and recording the arrival time when the difference between the real-time performance characteristic parameter and the initial performance characteristic parameter is larger than a preset difference, including:
and recording the arrival time under the condition that the difference value between the real-time PH value and the initial PH value is larger than a second preset difference value.
4. The method of claim 1, wherein the obtaining the cross-sectional fluid area of the target fluid in the target channel comprises:
and acquiring the fluid sectional area of the target liquid in the target channel in a target detection area, wherein the target detection area is an area with a distance smaller than a preset distance from the signal excitation position or the signal detection position.
5. The method of claim 4, wherein said obtaining a cross-sectional fluid area of said target fluid in said target channel within a target detection zone comprises:
acquiring the inner diameter of the target channel under the condition that the target channel is a pipeline;
acquiring the liquid level height of target liquid in the target detection area in the target channel;
the fluid cross-sectional area is calculated based on the inner diameter and the liquid level height.
6. The method of claim 1, wherein applying the target electromagnetic field at the signal excitation location of the target channel comprises:
applying a periodic electromagnetic field at a signal excitation location of a target channel to generate a target electromagnetic field, wherein an excitation period of the periodic electromagnetic field is adjusted in real time according to the measurement time interval.
7. A liquid flow rate calculation apparatus, comprising:
an excitation unit for applying a target electromagnetic field at a signal excitation position of the target channel and recording a magnetic field application time so that a target liquid at the signal excitation position generates a magnetization mark;
a detection unit that detects an arrival time of the target liquid based on a signal detection position of the magnetization mark at the target channel, wherein the signal detection position is a downstream position corresponding to the signal excitation position in the target channel;
an acquisition unit configured to acquire a measurement time interval based on the magnetic field application time and the arrival time;
and the calculating unit is used for acquiring the target liquid flow corresponding to the target area based on the signal excitation position, the signal detection position, the measurement time interval and the fluid cross section area of the target liquid.
8. A liquid flow rate detection system including the liquid flow rate calculation apparatus according to claim 6, further comprising:
the electromagnetic field generating device is connected to the signal excitation position of the target channel and is used for applying a target electromagnetic field and recording the magnetic field applying time so as to enable the target liquid to generate a magnetization mark;
a liquid cross-sectional area detection device connected to the target channel in a target detection area for detecting a fluid cross-sectional area of a target liquid in the target channel in the target detection area;
and a magnetization mark signal detection device connected to a signal detection position of the target channel, wherein the signal detection position is a downstream position with a distance of a measurement interval distance from the signal excitation position in the target channel, and is used for detecting and recording mark arrival time of a target liquid with a magnetization mark.
9. The system of claim 8, wherein the liquid cross-sectional area detection device is a liquid level detection device in the case where the target channel is a pipeline.
10. An electronic device, comprising: memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor is adapted to implement the steps of the liquid flow calculation method according to any one of claims 1-6 when executing the computer program stored in the memory.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210599853.6A CN117191140A (en) | 2022-05-30 | 2022-05-30 | Liquid flow calculation method and related equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210599853.6A CN117191140A (en) | 2022-05-30 | 2022-05-30 | Liquid flow calculation method and related equipment |
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| CN117191140A true CN117191140A (en) | 2023-12-08 |
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| CN202210599853.6A Pending CN117191140A (en) | 2022-05-30 | 2022-05-30 | Liquid flow calculation method and related equipment |
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