Detector for pipeline flow monitoring and pipeline flow monitoring method

Abstract

The invention provides a detector for pipeline flow monitoring and a pipeline flow monitoring method, and relates to the technical field of flow monitoring. Wherein the detector comprises a first tube and a second tube; the first pipe and the second pipe are arranged in the detector in parallel along the axial direction; the first pipe comprises a horizontal section, a vertical section, a first opening and a third opening, the horizontal section is communicated with the vertical section, the first opening is an opening in the top end of the vertical section, the third opening is an opening in the tail end of the horizontal section, a first piston is arranged at the third opening, medium liquid is arranged in a space formed by the first piston and the first pipe, and a balancing weight is arranged on the medium liquid; a displacement sensor is arranged on the balancing weight; the second tube comprises a second opening and a fourth opening, the second opening is a top opening of the second tube, a second piston is arranged at the fourth opening, and a slender needle is arranged on the second piston. The flow of the pipeline is monitored through the detector, the flow of the middle section of the pipeline is monitored, and the accuracy of monitoring the flow of the pipeline is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of flow monitoring, and particularly to a detector for pipeline flow monitoring and a pipeline flow monitoring method. Background Art

[0002] Currently, when monitoring the flow rate of an already-built and in-use pipeline, an indirect estimation method is usually adopted. However, this method can usually only obtain the data at the ends of the pipeline, and the actual situation in the middle section of the pipeline cannot be accurately understood, resulting in low accuracy. Summary of the Invention

[0003] The present disclosure provides a detector for pipeline flow monitoring and a pipeline flow monitoring method.

[0004] According to a first aspect of the present disclosure, there is provided a detector for pipeline flow monitoring, characterized in that the detector includes a first pipe and a second pipe;

[0005] Wherein, the top end of the detector includes a first opening of the first pipe and a second opening of the second pipe;

[0006] The first pipe and the second pipe are arranged side by side along the axial direction inside the detector;

[0007] The first pipe includes a horizontal section, a vertical section, the first opening and a third opening. The horizontal section is communicated with the vertical section. The first opening is the top opening of the vertical section, and the third opening is the end opening of the horizontal section. A first piston is arranged at the third opening. A medium liquid is arranged in the space formed by the first piston and the first pipe. A counterweight is arranged on the medium liquid, and a displacement sensor is arranged on the counterweight;

[0008] The second pipe includes the second opening and a fourth opening. The second opening is the top opening of the second pipe, and the fourth opening is the bottom opening of the second pipe. A second piston is arranged at the fourth opening, and a slender needle is arranged on the second piston;

[0009] Wherein, the first piston fits the inner wall of the horizontal section, and the second piston fits the inner wall of the second pipe.

[0010] According to a second aspect of the present disclosure, there is provided a pipeline flow monitoring method, characterized in that it includes:

[0011] Obtaining the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment, wherein the measurement data includes the measurement data of the first pipe in the detector and the measurement data of the second pipe, and the detector is as described in the first aspect of the present disclosure;

[0012] Based on the measurement data of the first tube, determine the gravity of the target medium liquid, where the target medium liquid is the medium liquid in the first tube that is pushed into the vertical section of the first tube by the impact of the liquid in the pipeline;

[0013] Based on the gravity of the target medium liquid, determine the flow rate of the liquid in the pipeline at the current moment;

[0014] Based on the measurement data of the second tube, determine the water level of the liquid in the pipeline at the current moment;

[0015] Based on the diameter of the pipeline, the flow rate, and the water level, determine the flow rate of the liquid in the pipeline at the current moment.

[0016] A detector for pipeline flow monitoring and a pipeline flow monitoring method provided by the present disclosure can be set at each section of the pipeline, such as the middle section, according to needs. Thus, not only the flow rate at the end section of the pipeline can be measured, but also the flow rate in the middle section of the pipeline can be directly measured, making the pipeline flow monitoring method proposed by the present disclosure applicable to more scenarios and providing conditions for improving the applicability and accuracy of the pipeline flow monitoring method. Description of the Drawings

[0017] The drawings here are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0018] Figure 1 It is a schematic structural diagram of a detector for pipeline flow monitoring provided by an embodiment of the present disclosure;

[0019] Figure 2 It is a top view of the detector for pipeline flow monitoring proposed by an embodiment of the present disclosure;

[0020] Figure 3 It is a schematic diagram after deployment of the detector for pipeline flow monitoring proposed by an embodiment of the present disclosure;

[0021] Figure 4 It is a schematic flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure;

[0022] Figure 5 It is a schematic flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure;

[0023] Figure 6 It is a schematic flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure;

[0024] Figure 7 It is a schematic flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure;

[0025] Figure 8 The flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure.

[0026] In the figure: 1 - first pipe, 2 - second pipe, 3 - counterweight, 4 - displacement sensor, 5 - first piston, 6 - dielectric liquid, 7 - slender needle, 8 - second piston, 9 - first opening, 10 - second opening.

[0027] Through the above-mentioned drawings, the specific embodiments of the present disclosure have been shown, and more detailed descriptions will be given hereinafter. These drawings and the written description are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed Description of Specific Embodiments

[0028] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0029] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals involved in the present disclosure are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with the relevant laws, regulations and standards of relevant countries and regions.

[0030] It should be noted that the acquisition, transmission, storage, use, processing, etc. of data in the technical solution of the present disclosure all comply with the relevant provisions of national laws and regulations.

[0031] Next, with reference to the drawings, a detector for pipeline flow monitoring and a pipeline flow monitoring method according to an embodiment of the present disclosure will be described in detail.

[0032] Figure 1 The structural schematic diagram of a detector for pipeline flow monitoring provided by an embodiment of the present disclosure.

[0033] As Figure 1 shown, the detector for pipeline flow monitoring includes: 1 - first pipe and 2 - second pipe;

[0034] Among them, the top of the detector includes the first opening of the 1 - first pipe and the second opening of the 2 - second pipe;

[0035] The 1 - first tube and the 2 - second tube are arranged axially side by side inside the detector;

[0036] The 1 - first tube includes a horizontal section, a vertical section, a first opening and a third opening. The horizontal section is connected to the vertical section. The first opening is the top opening of the vertical section, and the third opening is the end opening of the horizontal section. A 5 - first piston is provided at the third opening. A 6 - dielectric liquid is provided in the space formed by the 5 - first piston and the 1 - first tube. A 3 - counterweight is provided on the 6 - dielectric liquid, and a 4 - displacement sensor is provided on the 3 - counterweight;

[0037] The 2 - second tube includes a second opening and a fourth opening. The second opening is the top opening of the 2 - second tube, and the fourth opening is the bottom opening of the 2 - second tube. An 8 - second piston is provided at the fourth opening, and a 7 - slender needle is provided on the 8 - second piston.

[0038] Among them, the first piston fits the inner wall of the horizontal section, and the second piston fits the inner wall of the second tube, so as to prevent the liquid in the pipeline from entering the detector and affecting the measurement result.

[0039] Among them, the 1 - first tube can be used to measure the flow rate of the liquid in the pipeline, and the 2 - second tube can be used to measure the water level of the liquid in the pipeline.

[0040] It should be noted that the type of liquid in the pipeline can be determined according to actual needs. For example, the type of liquid in the pipeline can be water, etc., and the present disclosure does not limit this.

[0041] In the present disclosure, the horizontal section of the 1 - first tube of the detector in the present disclosure is shorter and thicker than the vertical section, so that the 5 - first piston only needs to move a short distance, and the liquid level of the dielectric liquid in the vertical section can change significantly, improving the accuracy of pipeline flow monitoring.

[0042] As Figure 1 shown, the inside of the detector proposed in the present disclosure is axially divided into two parts. One part is provided with the 1 - first tube, and the other part is provided with the 2 - second tube. Both the 1 - first tube and the 2 - second tube are hollow tubes, and the rest of the inside of the detector is solid. The first opening of the 1 - first tube and the second opening of the 2 - second tube are both at the top of the detector, forming a top view as Figure 2 shown, Figure 2 which is the top view of the detector for pipeline flow monitoring proposed in the embodiment of the present disclosure.

[0043] In the present disclosure, when monitoring the pipeline flow rate using a detector, the length, diameter, etc. of the 1 - first pipe in the detector can be adjusted according to the specific pipeline, so as to ensure that when the detector is not in water and the 5 - first piston is at the end of the horizontal section, there is still a medium liquid in the vertical section of the 1 - first pipe, and the 3 - counterweight will not sink into the horizontal section. When the liquid flow rate in the pipeline reaches the maximum, the 5 - first piston moves under the impact of the liquid, causing the medium liquid in the vertical section to rise until there is still a part of the medium liquid in the horizontal section when the internal and external liquid pressures of the 1 - first pipe are balanced, and the 5 - first piston will not enter the vertical section. That is to say, the upper and lower limits of the flow of the medium liquid in the 1 - first pipe need to cover the connection between the vertical section and the horizontal section of the first pipe, that is, the turning point, to ensure that the 5 - first piston and the 3 - counterweight will not pass through the connection, that is, the turning point. The present disclosure does not limit this.

[0044] It should be noted that the specific type of the medium liquid can be determined according to needs, and the present disclosure does not limit this.

[0045] It should be noted that in order to make the counterweight float on the medium liquid, the density of the counterweight should be less than the density of the medium liquid.

[0046] In some possible implementation forms, when deploying the detector in the pipeline, it can be as Figure 3 shown Figure 3 which is a schematic diagram after deployment of the detector for pipeline flow rate monitoring proposed in an embodiment of the present disclosure. The third opening faces the flow direction of the liquid in the pipeline, and the water-facing surface of the 5 - first piston is perpendicular to the flow direction of the liquid in the pipeline, so that the 1 - first pipe can measure the flow rate of the liquid in the pipeline.

[0047] It should be noted that when deploying the detector in the pipeline, a cut can be first made directly above the pipeline to cut out an opening matching the shape of the detector, and then the detector can be inserted into the pipeline through the opening, and the opening can be sealed using the sealing ring provided outside the detector to prevent pipeline leakage at the opening and affect the monitoring result.

[0048] Among them, the sealing ring can be used to seal the connection between the detector and the pipeline, and its specific material can be determined according to needs. For example, the sealing ring can be made of rubber materials, plastic materials or composite materials, etc. The present disclosure does not limit this.

[0049] It should be noted that after the detector is inserted into the pipeline, in order to facilitate reading the measurement data of the detector, the part of the detector exposed outside the pipeline can be transparent and visible. The present disclosure does not limit this.

[0050] The detector for pipeline flow monitoring proposed in the embodiments of the present disclosure can be set in each section of the pipeline as needed, such as the middle section. Thus, not only can the flow rate at the end section of the pipeline be measured, but also the flow rate in the middle section of the pipeline can be directly measured, enabling the pipeline flow monitoring method proposed in the present disclosure to be applicable to more scenarios and providing conditions for improving the practicality and accuracy of the pipeline flow monitoring method.

[0051] Figure 4 It is a schematic flowchart of a pipeline flow monitoring method provided by an embodiment of the present disclosure.

[0052] As Figure 4 shown, the method includes:

[0053] Step 401, obtain the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment. Among them, the measurement data includes the measurement data of the first pipe and the second pipe in the detector.

[0054] It should be noted that the application scenario of the pipeline flow monitoring method proposed in the present disclosure can be determined as needed. For example, the pipeline flow monitoring method proposed in the present disclosure can be used for pipeline flow monitoring in hydropower stations, or can also be used for pipeline flow monitoring in urban water supply and drainage pipelines, etc. The present disclosure does not limit this.

[0055] Among them, the diameter of the pipeline can be determined according to the specific pipeline, and the present disclosure does not limit this.

[0056] Among them, the detector can be the device provided by the present disclosure for monitoring pipeline flow, and its specific structure can be as described in the above embodiments of the present disclosure.

[0057] It should be noted that the shape, size, and proportion of the detector can be determined according to the specific pipeline, and the present disclosure does not limit this.

[0058] Among them, the first pipe can be the pipe in the detector for measuring the flow velocity of the liquid in the pipeline, and its specific shape can be set as needed. For example, the first pipe can be Figure 1 the "L"-shaped pipe shown.

[0059] Among them, the second pipe can be the pipe for measuring the liquid level in the pipeline, and its specific shape can be set as needed. For example, the first pipe can be Figure 1 the straight pipe shown.

[0060] In the present disclosure, when monitoring the pipeline flow, the number of detectors deployed in the pipeline and the deployment positions of the detectors can be determined according to actual needs, and the present disclosure does not limit this.

[0061] In some possible implementation forms, the present disclosure may obtain measurement data of a detector installed on a pipeline at the current moment in response to a pipeline flow monitoring request.

[0062] In some possible implementation forms, the present disclosure may also obtain measurement data of a detector installed on a pipeline at the current moment when the current moment reaches the monitoring time point of a monitoring period.

[0063] Wherein, the period length of the monitoring period may be preset or may also be determined as needed, and the present disclosure does not limit this.

[0064] Wherein, the monitoring time point may be determined according to the period length of the monitoring period and the start time point of the monitoring period, and the present disclosure does not limit this. For example, if the monitoring period is once a month and the start time point is 8:00 am on February 12th, then the monitoring time points can be 8:00 am on March 12th, 8:00 am on April 12th, and so on. When the current moment is 8:00 am on April 12th, it can be determined that the current moment reaches the monitoring time point of the monitoring period, and the present disclosure does not limit this.

[0065] Wherein, the start time point of the monitoring period may be the time point when the pipeline flow is monitored for the first time, and the present disclosure does not limit this.

[0066] In the present disclosure, by obtaining the measurement data of the detector installed on the pipeline at the current moment, a data basis is provided for pipeline flow monitoring.

[0067] Step 402: Determine the gravity of the target medium liquid based on the measurement data of the first pipe, where the target medium liquid is the medium liquid in the vertical section of the first pipe that is pushed by the liquid in the pipeline and impacted in the first pipe.

[0068] In the present disclosure, after obtaining the measurement data of the detector at the current moment, since pipeline flow measurement essentially measures the volume of liquid passing through the pipeline cross-section per unit time, and the measurement of the liquid volume per unit time can be obtained by multiplying the cross-sectional area of the liquid in the pipeline by the flow velocity. Since the pipeline is fixed and the liquid cross-sectional area is directly related to the water level, therefore, by determining the flow velocity and water level of the liquid in the pipeline at the current moment, the pipeline flow can be determined.

[0069] When using a detector to monitor the liquid flow rate in a pipeline, the first piston in the first pipe is impacted by the liquid in the pipeline, pushing the medium liquid in the horizontal section into the vertical section in the first pipe. At equilibrium, the impact force of the pipeline liquid on the first piston is equal to the gravity of the target medium liquid. According to physical formulas such as the pressure and momentum theorem, the impulse of the impact force is equal to the momentum of the impact liquid, and the momentum is determined by the flow velocity and the mass of the liquid. The mass of the liquid per unit time is determined by the flow velocity and the cross-sectional area of the horizontal section of the first pipe. Based on these relationships, the relationship between the pipeline liquid flow velocity and the gravity of the target medium liquid can be determined. Therefore, in order to determine the flow velocity of the liquid in the pipeline at the current moment, the gravity of the target medium liquid can be determined first based on the measurement data of the first pipe.

[0070] Step 403: Determine the flow velocity of the liquid in the pipeline at the current moment based on the gravity of the target medium liquid.

[0071] In the present disclosure, after determining the gravity of the target medium liquid, the flow velocity of the liquid in the pipeline at the current moment can be determined based on the gravity of the target medium liquid, thereby providing a data basis for pipeline flow monitoring.

[0072] Step 404: Determine the water level of the liquid in the pipeline at the current moment based on the measurement data of the second pipe.

[0073] In the present disclosure, after determining the flow velocity of the liquid in the pipeline at the current moment, in order to determine the flow rate of the liquid in the pipeline at the current moment, the water level of the liquid in the pipeline at the current moment can be determined based on the measurement data of the second pipe.

[0074] Step 405: Determine the flow rate of the liquid in the pipeline at the current moment based on the diameter, flow velocity, and water level of the pipeline.

[0075] In the present disclosure, after determining the water level of the liquid in the pipeline at the current moment, since the pipeline flow rate can be obtained by multiplying the cross-sectional area of the liquid in the pipeline by the flow velocity, therefore, the cross-sectional area of the liquid in the pipeline can be determined first based on the diameter and water level of the pipeline, and then the cross-sectional area is multiplied by the flow velocity to obtain the flow rate of the liquid in the pipeline at the current moment. Thus, through the pipeline flow monitoring method proposed in the embodiments of the present disclosure, the flow rate in the middle section of the pipeline can be monitored, improving the accuracy and applicability of pipeline flow monitoring.

[0076] In an embodiment of the present disclosure, first, the diameter of the pipeline is obtained, as well as the measurement data of the detector installed on the pipeline at the current moment. Then, based on the measurement data of the first pipe, the gravity of the target medium liquid is determined, and based on the gravity of the target medium liquid, the flow rate of the liquid in the pipeline at the current moment is determined. After that, based on the measurement data of the second pipe, the water level of the liquid in the pipeline at the current moment is determined. Finally, based on the diameter, flow rate, and water level of the pipeline, the flow rate of the liquid in the pipeline at the current moment is determined. Thus, by obtaining the measurement data of the detector installed on the pipeline, the flow rate and water level of the liquid in the pipeline at the current moment are determined, and based on the pipeline diameter, liquid flow rate, and water level, the pipeline flow rate is determined, thereby realizing the monitoring of the flow rate in the middle section of the pipeline and improving the accuracy and applicability of pipeline flow rate monitoring.

[0077] Figure 5 It is a schematic flowchart of a pipeline flow rate monitoring method provided by an embodiment of the present disclosure.

[0078] As Figure 5 shown, the method includes:

[0079] Step 501, obtain the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment, where the measurement data includes the measurement data of the first pipe and the second pipe in the detector.

[0080] Among them, the detector is as described in the above embodiments of the present disclosure.

[0081] The specific implementation form of step 501 can refer to the detailed description in other embodiments of the present disclosure and will not be specifically described here.

[0082] Step 502, obtain the first displacement value measured by the displacement sensor located in the vertical section of the first pipe, where the displacement sensor is located on the medium liquid in the vertical section.

[0083] Among them, the displacement sensor can be used to measure the liquid level change of the medium liquid in the vertical section, and its specific type and structure can be preset or can also be determined according to needs. The present disclosure does not limit this.

[0084] Among them, the first displacement value can be the liquid level change value of the medium liquid in the vertical section, that is, the liquid level change value of the target medium liquid pushed into the vertical section by the liquid in the pipeline. The present disclosure does not limit this.

[0085] In the present disclosure, after obtaining the measurement data of the detector installed on the acquisition pipeline at the current moment, in order to determine the flow rate of the liquid in the pipeline, when the liquid level of the medium liquid in the vertical section of the first pipe does not change, the first displacement value measured by the displacement sensor located in the vertical section is obtained, so that based on the first displacement value, the liquid level change when the medium liquid in the first pipe is pushed to the vertical section by the impact force of the liquid in the pipeline can be determined, providing a data basis for determining the pipeline liquid flow rate.

[0086] Step 503: Obtain the first cross-sectional area of the vertical section and the density of the medium liquid.

[0087] It should be noted that different types of medium liquids may have different densities.

[0088] Step 504: Determine the gravity of the target medium liquid based on the first displacement value, the first cross-sectional area, and the density of the medium liquid.

[0089] In the present disclosure, after obtaining the first cross-sectional area of the vertical section and the density of the medium liquid, based on the first displacement value, the first cross-sectional area, and the density of the medium liquid, the gravity of the target medium liquid can be determined according to the following formula (1), where formula (1) is only an example and the present disclosure does not limit it:

[0090] G = ρ1×h×s1×g, (1)

[0091] Where, G is the gravity of the target medium liquid; ρ1 is the density of the medium liquid; h is the first displacement value; s1 is the first cross-sectional area; g is the acceleration due to gravity.

[0092] Step 505: Obtain the second cross-sectional area of the horizontal section in the first pipe and the density of the liquid in the pipeline.

[0093] In the present disclosure, after determining the gravity of the target medium liquid, since in the equilibrium state, the impact force of the liquid in the pipeline on the first piston in the first pipe is equal to the gravity of the target medium liquid pushed to the vertical section by the impact force. When determining the impact force, according to the specific description information in the above embodiments such as step 402, the impulse of the impact force is equal to the momentum of the impact liquid. According to the impulse theorem: F×t = mv, the following formula (2) can be derived:

[0094]

[0095] Where, F is the impact force of the liquid in the pipeline on the first piston in the first pipe; t is the unit time; m is the mass of the liquid in the pipeline that impacts the first piston per unit time; v is the flow rate of the liquid in the pipeline at the current moment.

[0096] Within the unit time t, the mass of the liquid in the pipeline is determined by the liquid flow velocity v and the cross-sectional area of the horizontal section in the first pipe. Thus, the following formula (3) can be obtained:

[0097] m = ρ2 × s2 × v × t, (3)

[0098] Where ρ2 is the density of the liquid in the pipeline; s2 is the second cross-sectional area.

[0099] Substituting formula (3) into formula (2), the following formula (4) can be obtained:

[0100]

[0101] Finally, since the gravity of the target medium liquid is equal to the impact force of the liquid in the pipeline on the first piston in the first pipe, therefore, according to formula (4), the calculation formula (5) for the gravity of the target medium liquid can be obtained:

[0102] G = ρ2 × s2 × v 2 , (5)

[0103] Therefore, it can be seen from formula (5) that after determining the gravity of the target medium liquid, in order to determine the flow velocity of the liquid in the pipeline at the current moment, it is also necessary to obtain the second cross-sectional area of the horizontal section in the first pipe and the density of the liquid in the pipeline.

[0104] Step 506: Determine the flow velocity of the liquid in the pipeline at the current moment based on the gravity of the target medium liquid, the second cross-sectional area, and the density of the liquid in the pipeline.

[0105] In the present disclosure, after obtaining the second cross-sectional area of the horizontal section in the first pipe, the functional relationship between the flow velocity and the gravity can be determined by formula (5), as shown in formula (6):

[0106]

[0107] Therefore, the gravity of the target medium liquid, the second cross-sectional area, and the density of the liquid in the pipeline can be substituted into formula (6) to determine the flow velocity of the liquid in the pipeline at the current moment.

[0108] Step 507: Determine the water level of the liquid in the pipeline at the current moment based on the measurement data of the second pipe.

[0109] Step 508: Determine the flow rate of the liquid in the pipeline at the current moment based on the diameter, flow velocity, and water level of the pipeline.

[0110] Among them, for the specific implementation forms of steps 507 to 508, reference can be made to the detailed descriptions in other embodiments of the present disclosure, and details will not be elaborated here.

[0111] In the embodiments of the present disclosure, first, the diameter of the pipeline is obtained, as well as the measurement data of the detector installed on the pipeline at the current moment. Then, the first displacement value measured by the displacement sensor located in the vertical section of the first pipe is obtained, and the first cross-sectional area of the vertical section, as well as the density of the medium liquid, are obtained. After that, based on the first displacement value, the first cross-sectional area, and the density of the medium liquid, the gravity of the target medium liquid is determined, and the second cross-sectional area of the horizontal section in the first pipe, as well as the density of the liquid in the pipeline, are obtained. Then, based on the gravity of the target medium liquid, the second cross-sectional area, and the density of the liquid in the pipeline, the flow rate of the liquid in the pipeline at the current moment is determined. Finally, based on the measurement data of the second pipe, the water level of the liquid in the pipeline at the current moment is determined, and based on the diameter, flow rate, and water level of the pipeline, the flow rate of the liquid in the pipeline at the current moment is determined. Thus, by based on the measurement data of the detector installed on the pipeline at the current moment, and based on the relationship that at equilibrium, the impact force of the liquid in the pipeline is equal to the gravity of the medium liquid pushed into the vertical section in the first pipe, the gravity of the medium liquid pushed into the vertical section is determined, and based on physical formulas such as the momentum theorem, the relationship between the impact force and the flow rate is determined, and then the relationship between the gravity and the flow rate is obtained. Based on this relationship, the flow rate is determined, thereby improving the accuracy of pipeline flow rate monitoring.

[0112] Figure 6 It is a schematic flow chart of a pipeline flow rate monitoring method provided by an embodiment of the present disclosure.

[0113] As Figure 6 shown, the method includes:

[0114] Step 601, obtain the diameter of the pipeline, as well as the measurement data of the detector installed on the pipeline at the current moment, where the measurement data includes the measurement data of the first pipe and the measurement data of the second pipe in the detector.

[0115] Among them, the detector is as described in the above embodiments of the present disclosure.

[0116] Step 602, determine the gravity of the target medium liquid based on the measurement data of the first pipe, where the target medium liquid is the medium liquid in the first pipe that is impacted by the liquid in the pipeline and pushed into the vertical section of the first pipe.

[0117] Step 603, determine the flow rate of the liquid in the pipeline at the current moment based on the gravity of the target medium liquid.

[0118] Among them, for the specific implementation forms of steps 601 to 603, reference can be made to the detailed descriptions in other embodiments of the present disclosure, and details are not described herein again.

[0119] Step 604, obtain the second displacement value measured by the second pipe.

[0120] Among them, the second displacement value can be used to represent the water level of the liquid in the pipeline at the current moment, and it can be the displacement value of the slender needle in the second pipe.

[0121] In the present disclosure, after determining the gravity of the target medium liquid, in order to determine the flow rate of the liquid in the pipeline at the current moment, it is also necessary to determine the water level of the liquid in the pipeline at the current moment. According to the schematic diagram of the detector deployment shown in Figure 3 As can be seen from the schematic diagram of the detector deployment shown, when the liquid in the pipeline passes through the detector, according to the principle of communicating vessels, the liquid in the pipeline will enter the second pipe. Since the density of the second piston in the second pipe of the detector is less than the density of the liquid in the pipeline, the height of the second piston will change with the water level of the liquid in the pipeline, and the displacement of the slender needle on the second piston can reflect the height change of the second piston, and thus the current water level can be determined. Therefore, when determining the water level of the liquid in the pipeline at the current moment, the second displacement value measured by the second pipe can be obtained first.

[0122] Step 605: Based on the second displacement value, determine the water level of the liquid in the pipeline at the current moment.

[0123] In the present disclosure, after obtaining the second displacement value measured by the second pipe, the water level of the liquid in the pipeline at the current moment can be determined based on the second displacement value, thereby providing a data basis for determining the flow rate of the liquid in the pipeline at the current moment.

[0124] Step 606: Based on the diameter, flow velocity, and water level of the pipeline, determine the flow rate of the liquid in the pipeline at the current moment.

[0125] Among them, for the specific implementation form of step 606, reference can be made to the detailed descriptions in other embodiments of the present disclosure, and details will not be elaborated here.

[0126] In the embodiment of the present disclosure, first, the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment are obtained, then based on the measurement data of the first pipe, the gravity of the target medium liquid is determined, and based on the gravity of the target medium liquid, the flow velocity of the liquid in the pipeline at the current moment is determined. After that, the second displacement value measured by the second pipe is obtained, and based on the second displacement value, the water level of the liquid in the pipeline at the current moment is determined. Finally, based on the diameter, flow velocity, and water level of the pipeline, the flow rate of the liquid in the pipeline at the current moment is determined. Thus, by using the data measured by the detector proposed in the present disclosure, the flow velocity and water level of the liquid in the pipeline at the current moment are respectively determined, and based on the pipeline diameter, flow velocity, and water level, the pipeline flow rate is determined, thereby improving the efficiency and accuracy of pipeline flow rate monitoring.

[0127] Figure 7 It is a schematic flow chart of a pipeline flow rate monitoring method provided by an embodiment of the present disclosure.

[0128] Such asFigure 7 As shown, the method includes:

[0129] Step 701, obtain the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment, where the measurement data includes the measurement data of the first pipe and the second pipe in the detector.

[0130] Wherein, the detector is as described in the above embodiments of the present disclosure.

[0131] Step 702, based on the measurement data of the first pipe, determine the gravity of the target medium liquid, where the target medium liquid is the medium liquid in the first pipe that is pushed into the vertical section of the first pipe by the impact of the liquid in the pipeline.

[0132] Step 703, based on the gravity of the target medium liquid, determine the flow rate of the liquid in the pipeline at the current moment.

[0133] Step 704, based on the measurement data of the second pipe, determine the water level of the liquid in the pipeline at the current moment.

[0134] Wherein, the specific implementation forms of steps 701 to 704 can refer to the detailed descriptions in other embodiments of the present disclosure, and will not be specifically elaborated here.

[0135] Step 705, based on the diameter of the pipeline and the water level, determine the third cross-sectional area of the liquid in the pipeline at the current moment.

[0136] Wherein, the third cross-sectional area can be the liquid cross-sectional area of the liquid in the pipeline at the current moment.

[0137] In the present disclosure, after determining the water level of the liquid in the pipeline at the current moment, it can be known from the specific description information of the above embodiments of the present disclosure such as step 402 that since the pipeline flow rate can be obtained by multiplying the liquid cross-sectional area in the pipeline by the flow rate, and the liquid cross-sectional area is directly related to the water level and the diameter of the pipeline, therefore, the third cross-sectional area can be determined based on the diameter of the pipeline and the water level, thereby providing a data basis for determining the pipeline flow rate.

[0138] Step 706, based on the flow rate and the third cross-sectional area, determine the flow rate of the liquid in the pipeline at the current moment.

[0139] In the present disclosure, after determining the third cross-sectional area of the liquid in the pipeline at the current moment, the flow rate can be multiplied by the third cross-sectional area, and then the flow rate of the liquid in the pipeline at the current moment can be determined, thereby realizing the direct measurement of the pipeline flow rate and improving the accuracy of pipeline flow rate monitoring.

[0140] In an embodiment of the present disclosure, first, the diameter of the pipeline is obtained, as well as the measurement data of the detector installed on the pipeline at the current moment. Then, based on the measurement data of the first pipe, the gravity of the target medium liquid is determined, and based on the gravity of the target medium liquid, the flow rate of the liquid in the pipeline at the current moment is determined. After that, based on the measurement data of the second pipe, the water level of the liquid in the pipeline at the current moment is determined, and based on the diameter of the pipeline and the water level, the third cross-sectional area of the liquid in the pipeline at the current moment is determined. Finally, based on the flow rate and the third cross-sectional area, the flow rate of the liquid in the pipeline at the current moment is determined. Thus, after determining the gravity of the medium liquid pushed into the vertical section of the first pipe by the liquid in the pipeline through the measurement data of the first pipe in the detector, and then determining the flow rate of the liquid in the pipeline, the water level of the liquid in the pipeline is determined based on the displacement value measured by the second pipe in the detector, and then the cross-sectional area of the liquid in the pipeline is determined based on the pipeline diameter and the water level, and the pipeline flow rate is determined according to the flow rate and the cross-sectional area, thereby improving the accuracy of pipeline flow rate monitoring.

[0141] Figure 8 It is a schematic flowchart of a pipeline flow rate monitoring method provided by an embodiment of the present disclosure.

[0142] As Figure 8 shown, the method includes:

[0143] Step 801, obtain the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment, where the measurement data includes the measurement data of the first pipe and the second pipe in the detector.

[0144] Among them, the detector is as described in the above embodiment of the present disclosure.

[0145] Step 802, determine the gravity of the target medium liquid based on the measurement data of the first pipe, where the target medium liquid is the medium liquid in the first pipe that is impacted by the liquid in the pipeline and pushed into the vertical section of the first pipe.

[0146] Step 803, determine the flow rate of the liquid in the pipeline at the current moment based on the gravity of the target medium liquid.

[0147] Step 804, determine the water level of the liquid in the pipeline at the current moment based on the measurement data of the second pipe.

[0148] Step 805, determine the flow rate of the liquid in the pipeline at the current moment based on the diameter, flow rate, and water level of the pipeline.

[0149] Among them, for the specific implementation forms of steps 801 to 805, reference can be made to the detailed descriptions in other embodiments of the present disclosure, and details are not described herein again.

[0150] Step 806, obtain the target flow rate of the pipeline.

[0151] Among them, the target flow rate can be preset according to a specific pipeline, and it can be the flow rate when the pipeline is working properly.

[0152] In the present disclosure, after determining the flow rate of the liquid in the pipeline at the current moment, in order to determine whether the flow rate of the pipeline at the current moment is abnormal and whether the pipeline is working properly, the target flow rate of the pipeline can be obtained first, so as to provide conditions for effectively avoiding the occurrence of pipeline leakage or blockage.

[0153] Step 807: When the absolute value of the difference between the flow rate at the current moment and the target flow rate is less than the threshold value, it is determined that the pipeline is working properly.

[0154] Among them, the threshold value can be the critical value of the absolute value of the pipeline flow rate difference when judging whether the pipeline is working properly. It can be preset or can also be determined according to needs. The present disclosure does not make any limitations in this regard.

[0155] In the present disclosure, after obtaining the target flow rate of the pipeline, when the absolute value of the difference between the flow rate at the current moment and the target flow rate is less than the threshold value, it can be determined that the flow rate fluctuation of the pipeline at the current moment is within the normal range, and further it can be determined that the pipeline is working properly.

[0156] In some possible implementation forms, when the absolute value of the difference between the flow rate at the current moment and the target flow rate is greater than or equal to the threshold value, it can be determined that the flow rate fluctuation of the pipeline at the current moment exceeds the normal range and there is an abnormality. It can be determined that there may be situations such as pipeline leakage or blockage. At this time, based on the difference, the abnormal cause of the pipeline operation can be determined, and based on the abnormal cause, the pipeline can be repaired. For example, when the difference between the flow rate of the pipeline at the current moment and the target flow rate is negative and the absolute value of the difference is greater than the threshold value, it can be determined that there is a leakage phenomenon in the pipeline, resulting in a decrease in the liquid in the pipeline. At this time, in order to reduce the loss caused by pipeline leakage and improve the service life of the pipeline, the leakage location of the pipeline can be further determined and the pipeline can be repaired. The present disclosure does not make any limitations in this regard.

[0157] In the embodiments of the present disclosure, first, the diameter of the pipeline is obtained, as well as the measurement data of the detector installed on the pipeline at the current moment. Then, based on the measurement data of the first pipeline, the gravity of the target medium liquid is determined, and based on the gravity of the target medium liquid, the flow velocity of the liquid in the pipeline at the current moment is determined. After that, based on the measurement data of the second pipeline, the water level of the liquid in the pipeline at the current moment is determined, and based on the diameter, flow velocity, and water level of the pipeline, the flow rate of the liquid in the pipeline at the current moment is determined. Finally, the target flow rate of the pipeline is obtained. When the absolute value of the difference between the flow rate at the current moment and the target flow rate is less than the threshold, it is determined that the pipeline is operating normally. Thus, after determining the flow rate of the pipeline at the current moment, the flow rate of the pipeline at the current moment is compared with the target flow rate of the pipeline, which can effectively avoid the occurrence of situations such as pipeline leakage or blockage, improve the service life of the pipeline, and improve the reliability and timeliness of the pipeline flow rate monitoring method.

[0158] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only to be regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0159] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

[0160] It should be noted that in the description of the present disclosure, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0161] Any process or method description in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process. The scope of the preferred embodiments of the present disclosure includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in a reverse order according to the involved functions, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0162] Those of ordinary skill in the art can understand that all or part of the steps carried out in the methods of the above embodiments can be completed by instructing relevant hardware through a program. The said program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0163] In addition, in each of the various embodiments of the present disclosure, the functional units can be integrated in a processing module, or each unit can exist physically alone, or two or more units can be integrated in a module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0164] The above-mentioned storage medium can be a read-only memory, a magnetic disk, an optical disc, etc.

[0165] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms are not necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0166] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A detector for pipeline flow monitoring, characterized in that, The detector includes a first tube and a second tube; Wherein, the top of the detector includes a first opening of the first tube and a second opening of the second tube; The first tube and the second tube are arranged side by side axially inside the detector; The first tube includes a horizontal section, a vertical section, the first opening and a third opening. The horizontal section is communicated with the vertical section. The first opening is the top opening of the vertical section. The third opening is the end opening of the horizontal section. A first piston is arranged at the third opening. A medium liquid is arranged in the space formed by the first piston and the first tube. A counterweight is arranged on the medium liquid. A displacement sensor is arranged on the counterweight; The second tube includes the second opening and a fourth opening. The second opening is the top opening of the second tube. The fourth opening is the bottom opening of the second tube. A second piston is arranged at the fourth opening. A slender needle is arranged on the second piston; Wherein, the first piston fits the inner wall of the horizontal section, and the second piston fits the inner wall of the second tube.

2. The detector according to claim 1, wherein, When the detector is deployed in the pipeline, the third opening faces the flowing direction of the liquid in the pipeline, and the water-facing surface of the first piston is perpendicular to the flowing direction of the liquid in the pipeline.

3. A pipeline flow monitoring method, characterized in that, Including: Obtain the diameter of the pipeline and the measurement data of the detector installed on the pipeline at the current moment. Wherein, the measurement data includes the measurement data of the first tube and the second tube in the detector. Wherein, the detector is as described in any one of claims 1-2; Based on the measurement data of the first tube, determine the gravity of the target medium liquid. Wherein, the target medium liquid is the medium liquid in the first tube that is impacted by the liquid in the pipeline and is pushed into the vertical section of the first tube; Based on the gravity of the target medium liquid, determine the flow velocity of the liquid in the pipeline at the current moment; Based on the measurement data of the second tube, determine the water level of the liquid in the pipeline at the current moment; Based on the diameter of the pipeline, the flow velocity and the water level, determine the flow rate of the liquid in the pipeline at the current moment.

4. The method according to claim 3, wherein The obtaining the measurement data of the detector installed on the pipeline at the current moment includes any one of the following: In response to a pipeline flow monitoring request, obtain the measurement data of the detector installed on the pipeline at the current moment; When the current moment reaches the monitoring time point of the monitoring period, obtain the measurement data of the detector installed on the pipeline at the current moment.

5. The method according to claim 3, wherein The determining the gravity of the target medium liquid based on the measurement data of the first tube includes: Obtain a first displacement value measured by a displacement sensor located in the vertical section of the first tube. Wherein, the displacement sensor is located on the medium liquid in the vertical section; Obtain the first cross-sectional area of the vertical section and the density of the medium liquid; Based on the first displacement value, the first cross-sectional area and the density of the medium liquid, determine the gravity of the target medium liquid.

6. The method according to claim 5, characterized in that, The determining the flow velocity of the liquid in the pipeline at the current moment based on the gravity of the target medium liquid includes: Obtain the second cross-sectional area of the horizontal section in the first pipe and the density of the liquid in the pipeline; Based on the gravity of the target medium liquid, the second cross-sectional area, and the density of the liquid in the pipeline, determine the flow velocity of the liquid in the pipeline at the current moment.

7. The method according to claim 3, wherein The determining the water level of the liquid in the pipeline at the current moment based on the measurement data of the second pipe includes: Obtain the second displacement value measured by the second pipe; Based on the second displacement value, determine the water level of the liquid in the pipeline at the current moment.

8. The method according to claim 3, wherein The determining the flow rate of the liquid in the pipeline at the current moment based on the diameter of the pipeline, the flow velocity, and the water level includes: Based on the diameter of the pipeline and the water level, determine the third cross-sectional area of the liquid in the pipeline at the current moment; Based on the flow velocity and the third cross-sectional area, determine the flow rate of the liquid in the pipeline at the current moment.

9. The method according to claim 3, wherein After the determining the flow rate of the liquid in the pipeline at the current moment based on the diameter of the pipeline, the flow velocity, and the water level, it further includes: Obtain the target flow rate of the pipeline; When the absolute value of the difference between the flow rate at the current moment and the target flow rate is less than the threshold, determine that the pipeline is operating normally.

10. The method according to claim 9, wherein After the obtaining the target flow rate of the pipeline, it further includes: When the absolute value of the difference between the flow rate at the current moment and the target flow rate is greater than or equal to the threshold, based on the difference, determine the abnormal reason for the operation of the pipeline; Based on the abnormal reason, repair the pipeline.

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