Ultrasonic measuring device and system for flowing medium in pipeline

Abstract

The utility model relates to the field of fluid metering, in particular to an ultrasonic measuring device and system for a flowing medium in a pipeline, the measuring device comprises a measuring pipe section and an ultrasonic probe assembly, the measuring pipe section is provided with a circulation channel for the flowing of the medium, and the circulation channel comprises a plurality of measuring intervals; the plurality of measurement intervals are continuously arranged in a layered manner along the direction vertical to the flowing direction of the medium, and each measurement interval is provided with at least one group of ultrasonic probe assemblies; the ultrasonic probe assembly comprises transmitting probes and receiving probes, and the transmitting probes and the receiving probes are oppositely arranged in a one-to-one correspondence manner; the transmitting probe and / or the receiving probe are / is connected with the measuring pipe section; by expanding a flow measurement channel, the coverage area of a measurement signal is increased, the measurement precision is improved, the measurement error is reduced, the measurement accuracy and real-time performance are improved, and stable operation of process production is ensured; the measurement system comprises the measurement device and an operation processing unit, and the operation processing unit processes the obtained measurement data and outputs a more accurate measurement result.

Description

Technical Field

[0001] The utility model relates to the field of fluid measurement, in particular to an ultrasonic measuring device and system for a flowing medium in a pipeline. Background Art

[0002] At present, ultrasonic measuring devices are generally used to measure medium flow. The ultrasonic measuring device has a probe assembly, which is composed of a transmitting probe and a receiving probe. The transmitting probe and the receiving probe are respectively arranged on opposite sides of the pipeline radial direction. When there is medium flowing in the pipeline, the medium will attenuate the ultrasonic signal of the probe assembly. The strength of this attenuation is proportional to the size of the pipeline flow, so the size of the pipeline flow can be measured accordingly.

[0003] However, the currently used ultrasonic measuring device only uses a set of probe components for flow measurement. When measuring, the measurement signal coverage area is limited. When there is uneven medium flow rate in the pipeline, especially when the flow rate is too small or too large, there will be large measurement errors. Utility Model Content

[0004] The utility model aims to overcome the disadvantages of the prior art that the existing ultrasonic measuring device has large measurement errors when the flow velocity of the pipeline medium is uneven, and to provide an ultrasonic measuring device and system for the flowing medium in the pipeline.

[0005] In a first aspect, the utility model provides an ultrasonic measuring device for a flowing medium in a pipeline, comprising:

[0006] A measuring pipe section, wherein the measuring pipe section is provided with a flow channel for medium flow, the flow channel includes a plurality of measuring intervals, the plurality of measuring intervals are arranged in layers in a continuous manner perpendicular to the direction of medium flow, and each of the measuring intervals is provided with at least one set of ultrasonic probe assemblies;

[0007] An ultrasonic probe assembly, the ultrasonic probe assembly comprises a transmitting probe and a receiving probe, the transmitting probe and the receiving probe are arranged opposite to each other in a one-to-one correspondence; the transmitting probe and / or the receiving probe are connected to the measuring pipe section.

[0008] The utility model discloses an ultrasonic measuring device for a medium flowing in a pipeline. The flow channel can allow the medium to flow. When the medium passes through the flow channel, the flow rate of the medium can be measured by an ultrasonic probe assembly. The flow channel is composed of a plurality of measuring sections, and the measuring sections are continuously layered and arranged perpendicular to the direction of medium flow. Each measuring section is provided with an ultrasonic probe assembly for independent measurement, thereby overcoming the problem of large measurement errors of the ultrasonic measuring device, and improving the coverage area of ​​the measurement signal by measuring the flow channel in partitions, thereby further reducing the measurement error. The transmitting probe and the receiving probe are arranged in a one-to-one correspondence and facing each other, thereby ensuring the measurement accuracy of each measurement section. The transmitting probe and the receiving probe are connected and fixed to the pipeline, so that the transmitting probe and the receiving probe can continuously measure the measurement section. In the case of uneven medium flow rate, the accuracy of the measurement data of the medium flow is ensured.

[0009] Preferably, the measuring pipe section is provided with a mounting hole, the mounting hole passes through the measuring pipe section, the mounting hole is communicated with the measuring section, and the transmitting probe or the receiving probe is adaptably connected to the mounting hole.

[0010] The mounting hole passes through the side wall of the measuring pipe section, and a transmitting probe or a receiving probe is installed in the mounting hole so that the transmitting probe and the receiving probe extend into the measuring interval, thereby avoiding signal interference caused by the pipe wall of the measuring pipe section and ensuring the accuracy of the measurement result.

[0011] Preferably, along the direction of medium flow, the measuring pipe section includes an upstream side and a downstream side, all the receiving probes are arranged on the upstream side, and all the transmitting probes are arranged on the downstream side.

[0012] The receiving probe and the transmitting probe can measure more accurately and determine the flow direction of the medium; the middle of the measuring pipe section is taken as the center, the side of the center in the incoming direction is the upstream side, and the side of the center in the outgoing direction is the downstream side.

[0013] Preferably, all the receiving probes are located on the same cross-sectional surface of the measuring pipe section, and all the transmitting probes are located on the same cross-sectional surface of the measuring pipe section.

[0014] By controlling the positions of the transmitting probe and the receiving probe, all ultrasonic probe components can measure the flow rate of the same cross-section, thereby obtaining a more accurate measurement result.

[0015] Preferably, the angle between the detection line formed by any one of the ultrasonic probe assemblies and the medium flow direction is less than 90 degrees.

[0016] Setting the detection line at an angle can reduce mutual interference of the measuring probes, obtain more accurate measurement data, and measure the flow direction of the medium.

[0017] Preferably, the angle is 60 degrees.

[0018] While ensuring the measurement accuracy, the data of the medium flow direction can be obtained. In some embodiments, the angle is 45 degrees.

[0019] Preferably, perpendicular to the medium flow direction, the spacings between adjacent ultrasonic probe assemblies are equal.

[0020] Each set of ultrasonic probe components is evenly distributed on the measuring pipe section so that each set of ultrasonic probes can obtain accurate measurement data.

[0021] Preferably, the measuring pipe section is a cylindrical pipe, and flanges are provided at both ends of the measuring pipe section.

[0022] By providing the flange, the measuring pipe section can be more easily docked on the pipeline to be measured, making installation easier.

[0023] In a second aspect, the utility model provides an ultrasonic measurement system for a medium flowing in a pipeline, comprising an operation processing unit and the above-mentioned ultrasonic measurement device for a medium flowing in a pipeline, wherein the transmitting probe and the receiving probe are respectively connected to the operation processing unit.

[0024] The utility model discloses an ultrasonic measurement system for a medium flowing in a pipeline, wherein all transmitting probes are connected to a calculation processing unit, and all receiving probes are connected to the calculation processing unit. The calculation processing unit can comprehensively calculate the flow data collected by all ultrasonic probe components and output a more accurate measurement result, thereby avoiding the problem of large measurement error when the medium flow rate is uneven.

[0025] Preferably, the operation processing unit includes an operation unit and a display unit, the operation unit is connected to the display unit, and the transmitting probe and the receiving probe are respectively communicatively connected to the operation unit.

[0026] The multiple sets of collected data are processed by the computing unit, and the computing results are output to the display unit. The display unit can display the computing results so that the operating personnel can perceive the flow changes in time.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. The utility model is an ultrasonic measuring device for a medium flowing in a pipeline. The flow channel can allow the medium to flow. When the medium passes through the flow channel, the flow rate of the medium can be measured by an ultrasonic probe assembly. The flow channel is composed of a plurality of measuring sections, which are arranged in layers in a continuous manner perpendicular to the direction of the medium flow. Each measuring section is provided with an ultrasonic probe assembly for independent measurement, thereby overcoming the problem of large measurement errors of the ultrasonic measuring device. By measuring the flow channel in different areas, the coverage area of ​​the measurement signal is increased, and the measurement error is further reduced. The transmitting probe and the receiving probe are arranged in a one-to-one correspondence and facing each other, so as to ensure the measurement accuracy of each measuring section. The transmitting probe and the receiving probe are connected and fixed to the pipeline, so that the transmitting probe and the receiving probe can continuously measure the measuring section. In the case of uneven flow rate of the medium, the accuracy of the measurement data of the medium flow is ensured.

[0029] 2. The utility model provides an ultrasonic measurement system for a medium flowing in a pipeline, wherein all transmitting probes are connected to a calculation processing unit, and all receiving probes are connected to a calculation processing unit. The calculation processing unit can comprehensively calculate the flow data collected by all ultrasonic probe components and output a more accurate measurement result, thereby avoiding the problem of large measurement errors when the medium flow velocity is uneven, and obtaining a more accurate flow measurement result;

[0030] 3. The utility model provides an ultrasonic measurement device for a flowing medium in a pipeline. By expanding a single ultrasonic flow measurement channel into multiple channels, the measurement signal coverage is increased on the cross section of the measuring pipe section, thereby improving the measurement accuracy. This effectively solves the problem of large measurement errors when the pipeline flow is uneven, improves the accuracy and real-time performance of the measurement, ensures stable operation of the process production, and has good economic and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of an ultrasonic measuring device for a flowing medium in a pipeline according to Embodiment 1;

[0032] Figure 2 It is a front view structural schematic diagram of an ultrasonic measuring device for a flowing medium in a pipeline according to Embodiment 1;

[0033] Figure 3 Schematic diagram of the cross section taken along line aa of an ultrasonic measuring device for a flowing medium in a pipeline according to Embodiment 1;

[0034] Figure 4 This is a schematic structural diagram of an ultrasonic measuring device for a flowing medium in a pipeline according to Embodiment 2;

[0035] Figure 5 This is a schematic structural diagram of an ultrasonic measurement system for a flowing medium in a pipeline according to Example 3.

[0036] Markings in the figure:

[0037] 1-measuring pipe section, 2-circulation channel, 3-ultrasonic probe assembly, 4-flange, 5-calculation processing unit, 31-receiving probe, 32-transmitting probe, 33-detection line, 51-calculation unit, 52-display unit. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0039] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0040] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0041] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0042] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0043] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0044] Example 1

[0045] like Figure 1-Figure 3 As shown, an ultrasonic measuring device for a flowing medium in a pipeline includes a measuring pipe section 1 and an ultrasonic probe assembly 3.

[0046] The measuring pipe section 1 is a cylindrical pipe, and an axially penetrating flow channel 2 is provided in the measuring pipe section 1. The flow channel 2 is continuously layered and provided with a plurality of measuring intervals along a direction perpendicular to the flow of the medium. A group of ultrasonic probe assemblies 3 is provided in each measuring interval, and the partitioned measurement of the flow channel 2 is realized by using the plurality of groups of ultrasonic probe assemblies 3.

[0047] The ultrasonic probe assembly 3 includes a transmitting probe 32 and a receiving probe 31 . The transmitting probe 32 and the receiving probe 31 correspond to each other and are arranged facing each other. Both the transmitting probe 32 and the receiving probe 31 are connected to the measuring pipe section 1 .

[0048] The circulation channel 2 can allow the medium to circulate. When the medium passes through the circulation channel 2, the flow rate of the medium can be measured by the ultrasonic probe assembly 3; the circulation channel 2 is composed of a plurality of measurement intervals, and the measurement intervals are continuously layered and arranged perpendicular to the direction of medium flow. Each measurement interval is provided with an ultrasonic probe assembly 3 for independent measurement, thereby overcoming the problem of large measurement errors of the ultrasonic measuring device, and increasing the measurement signal coverage area by partitioning the circulation channel 2 for measurement, thereby further reducing the measurement error; the transmitting probe 32 and the receiving probe 31 are arranged in a one-to-one correspondence and facing each other, thereby ensuring the measurement accuracy of each measurement interval; the transmitting probe 32 and the receiving probe 31 are connected and fixed to the pipeline, so that the transmitting probe 32 and the receiving probe 31 can continuously measure the measurement interval; in the case of uneven medium flow rate, the accuracy of the measurement data of the medium circulation is ensured.

[0049] The medium flows in the measuring pipe section 1 along the axial direction of the pipeline, and the medium flow direction is parallel to the axis of the measuring pipe section 1 .

[0050] Continuous layering is set perpendicular to the direction of medium flow: a direction perpendicular to the axis is selected as a reference direction, and the flow channel 2 is continuously layered based on this direction.

[0051] In one or several embodiments, the measuring pipe section 1 is provided with a penetrating mounting hole, which is located on the side wall of the measuring pipe section 1 , is communicated with the measuring section, and both the transmitting probe 32 and the receiving probe 31 are adapted to be connected with the mounting hole.

[0052] Through the mounting holes, both the transmitting probe 32 and the receiving probe 31 are located within the measuring interval, thereby preventing the side wall of the measuring pipe section 1 from blocking the measuring signal and causing inaccurate measuring results, thereby reducing the measuring error.

[0053] In one or several embodiments, along the direction of medium flow, the measuring pipe section 1 is divided into an upstream side and a downstream side, all receiving probes 31 are arranged on the upstream side, and all transmitting probes 32 are arranged on the downstream side; all receiving probes 31 are located on the same cross-sectional surface of the measuring pipe section 1, and all transmitting probes 32 are located on the same cross-sectional surface of the measuring pipe section 1; in the flow direction of the medium, the transmitting probes 32 and the receiving probes 31 are arranged at intervals; the angle between the detection line 33 formed by any ultrasonic probe assembly 3 and the flow direction of the medium is 60 degrees; the detection line 33 is parallel to the longitudinal section of the measuring pipe section 1.

[0054] Each pair of measuring probes is installed at a certain angle to the measuring pipe section 1, which increases the coverage of measurement signals on the cross section of the measuring pipe section 1, improves the measurement accuracy, and effectively solves the problem of large errors when the flow rate of the main pipeline is too large or too small, and can measure the medium flow direction of the measuring pipe section 1 in real time.

[0055] In an optional embodiment, the angle between the detection line 33 formed by any ultrasonic probe assembly 3 and the medium flow direction is 45 degrees. The angle of 45 degrees can also achieve the measurement of the medium flow rate and flow direction.

[0056] In one or more embodiments, perpendicular to the medium flow direction, the spacings between adjacent ultrasonic probe assemblies 3 are equal.

[0057] The detection line 33 is parallel to the longitudinal section of the measuring pipe section 1. In the direction perpendicular to the longitudinal section parallel to the detection line 33, the spacing between adjacent detection lines 33 is equal, so that the measurement range of the ultrasonic measurement component is equal and more accurate measurement data can be obtained.

[0058] The ultrasonic measuring device of a flowing medium in a pipeline of the present embodiment increases the measurement signal coverage on the cross section of the measuring pipe section 1 by expanding a single ultrasonic flow measurement channel into multiple channels, thereby improving the measurement accuracy; effectively solves the problem of large measurement errors when the pipeline flow is uneven, improves the accuracy and real-time performance of the measurement, and ensures stable operation of the process production; when in use, both ends of the measuring pipe section 1 are welded to the pipeline to be measured, so that the medium of the pipeline to be measured flows through the circulation channel 2, so that the ultrasonic probe assembly 3 can measure the flow rate and flow direction of the medium.

[0059] Example 2

[0060] like Figure 4 The structure of the ultrasonic measuring device for a flowing medium in a pipeline shown is substantially the same as that of the embodiment 1. The difference from the embodiment 1 is that flanges 4 are provided at both ends of the measuring pipe section 1.

[0061] By providing the flange 4, the cylindrical pipe can be more easily disassembled and assembled on the pipeline to be measured.

[0062] Example 3

[0063] like Figure 5 As shown, an ultrasonic measuring system for a medium flowing in a pipeline includes a processing unit 5 and an ultrasonic measuring device for a medium flowing in a pipeline according to Embodiment 1 / Embodiment 2.

[0064] Specifically, the operation processing unit 5 is composed of an operation unit 51 and a display unit 52 . The operation unit 51 is communicatively connected to the display unit 52 . The transmitting probe 32 and the receiving probe 31 are communicatively connected to the operation unit 51 , respectively.

[0065] All transmitting probes 32 are connected to the operation processing unit 5, and all receiving probes 31 are connected to the operation processing unit 5. The operation processing unit 5 can comprehensively calculate the flow data collected by all ultrasonic probe assemblies 3 and output more accurate measurement results, thereby avoiding the problem of large measurement errors when the medium flow rate is uneven; and obtaining more accurate flow measurement results.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic measuring device for a flowing medium in a pipeline, characterized in that: include: A measuring pipe section (1), the measuring pipe section (1) being provided with a flow channel (2) for medium flow, the flow channel (2) comprising a plurality of measuring intervals, the plurality of measuring intervals being arranged in layers in a continuous manner perpendicular to the direction of medium flow, each of the measuring intervals being provided with at least one set of ultrasonic probe assemblies (3); An ultrasonic probe assembly (3), the ultrasonic probe assembly (3) comprising a transmitting probe (32) and a receiving probe (31), the transmitting probe (32) and the receiving probe (31) being arranged opposite to each other in a one-to-one correspondence; the transmitting probe (32) and / or the receiving probe (31) being connected to the measuring pipe section (1).

2. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 1, characterized in that: The measuring pipe section (1) is provided with a mounting hole, the mounting hole passes through the measuring pipe section (1), the mounting hole is communicated with the measuring section, and the transmitting probe (32) or the receiving probe (31) is adaptably connected to the mounting hole.

3. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 1, characterized in that: Along the direction of medium flow, the measuring pipe section (1) comprises an upstream side and a downstream side, all the receiving probes (31) are arranged on the upstream side, and all the transmitting probes (32) are arranged on the downstream side.

4. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 3, characterized in that: All the receiving probes (31) are located on the same cross-sectional surface of the measuring pipe section (1), and all the transmitting probes (32) are located on the same cross-sectional surface of the measuring pipe section (1).

5. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 1, characterized in that: The angle between the detection line (33) formed by any one of the ultrasonic probe assemblies (3) and the medium flow direction is less than 90 degrees.

6. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 5, characterized in that: The angle is 60 degrees.

7. The ultrasonic measuring device for a flowing medium in a pipeline according to claim 1, characterized in that: Perpendicular to the medium flow direction, the spacing between adjacent ultrasonic probe assemblies (3) is equal.

8. An ultrasonic measuring device for a flowing medium in a pipeline according to any one of claims 1 to 7, characterized in that: The measuring pipe section (1) is a cylindrical pipe, and flanges (4) are provided at both ends of the measuring pipe section (1).

9. An ultrasonic measurement system for a flowing medium in a pipeline, characterized in that: The ultrasonic measuring device for measuring a flowing medium in a pipeline comprises an operation processing unit (5) and any one of claims 1 to 8, wherein the transmitting probe (32) and the receiving probe (31) are respectively connected to the operation processing unit (5).

10. The ultrasonic measurement system for a flowing medium in a pipeline according to claim 9, characterized in that: The operation processing unit (5) comprises an operation unit (51) and a display unit (52); the operation unit (51) is connected to the display unit (52); and the transmitting probe (32) and the receiving probe (31) are respectively connected to the operation unit (51) in communication.

Images