CN114321734B - Portable pipeline velocity of flow measuring device under pressure - Google Patents
Portable pipeline velocity of flow measuring device under pressure Download PDFInfo
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- CN114321734B CN114321734B CN202111640295.5A CN202111640295A CN114321734B CN 114321734 B CN114321734 B CN 114321734B CN 202111640295 A CN202111640295 A CN 202111640295A CN 114321734 B CN114321734 B CN 114321734B
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Abstract
The invention provides a portable pressure pipeline flow velocity measuring device which comprises a supporting sleeve, wherein a flange is arranged at the bottom of the supporting sleeve, a moving rod is connected to the inside of the supporting sleeve in a sliding manner, a speed measuring head is arranged at the bottom end of the moving rod, a measuring and moving meter is arranged at the top end of the moving rod, a positioning mechanism is arranged at the middle position of the bottom of the speed measuring head and comprises a fixed cylinder fixed at the bottom end of the speed measuring head, an adjusting rod is connected to the inner wall of the fixed cylinder in a sliding manner, scale marks are arranged on the outer wall of the adjusting rod, a tightening block is arranged at the bottom end of the adjusting rod, the tightening block is of an arc structure, the tightening block is of a silica gel material, and an adsorption groove is formed in the middle position of the bottom end of the tightening block. According to the invention, flanges with different sizes can be selected according to the calibers of different pipelines with pressure, and the speed measuring head and the measuring shift meter are arranged on the pipelines with pressure to measure the flow velocity, so that the invention is not limited by the size, and is convenient to carry and use.
Description
Technical Field
The invention relates to the technical field of pipeline flow velocity measurement, in particular to a portable pressure pipeline flow velocity measurement device.
Background
The pipeline is a device for conveying gas, liquid or fluid with solid particles, which is formed by connecting pipes, pipe connectors, valves and the like, generally, after the fluid is pressurized by a blower, a compressor, a pump, a boiler and the like, the fluid flows from a high pressure position to a low pressure position of the pipeline, and the pressure or gravity of the fluid can be utilized for conveying the fluid, so that the pipeline has wide application range and is mainly used in water supply, water discharge, heat supply, gas supply, long-distance petroleum and natural gas conveying, agricultural irrigation, hydraulic engineering and various industrial devices, and the pipeline has a plurality of types, namely the pipeline with pressure, and as the development and population of cities are continuously increased, a city water pipe network becomes more overwhelming. Therefore, monitoring of urban water network is more important. Currently, flow rate measurement is generally performed by installing a flowmeter on a pressurized pipeline.
However, because the calibers of the main pipeline and the branch pipeline in the pipeline network are different, the same type of flowmeter is difficult to meet the use of pipelines with different calibers due to the limited size, and meanwhile, the steps are complicated, time and labor are wasted when the flowmeter is installed, the working efficiency of workers is influenced, the measurement requirement is difficult to meet, and the use is very inconvenient. For this purpose, a portable pressurized pipeline flow rate measuring device is proposed.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a portable pressurized conduit flow rate measurement device that solves or mitigates the technical problems of the prior art, and at least provides a beneficial option. The advantages are that: the method has the advantages that the proper construction time for detecting the pressure can be quickly found out, the construction is convenient for detecting the pressure, the flanges with different sizes can be selected according to the calibers of different pressure pipelines, the speed measuring head and the measuring meter are installed on the pressure pipelines to measure the flow velocity, the method is not limited by the size, and the use is convenient.
The technical scheme of the embodiment of the invention is realized as follows: the utility model provides a portable pipeline velocity of flow measuring device under pressure, includes the supporting sleeve, the bottom of supporting sleeve is provided with the flange, the inside sliding connection of supporting sleeve has the movable rod, the bottom of movable rod is provided with the speed measuring head, the top of movable rod is provided with the measurement and moves the table, speed measuring head bottom intermediate position is provided with positioning mechanism, positioning mechanism is including being fixed in the fixed cylinder of speed measuring head bottom, the inner wall sliding connection of fixed cylinder has the regulation pole, the outer wall of regulation pole is provided with the scale mark, the bottom of adjusting the pole is provided with the tight piece of subsides, the tight piece of subsides is circular-arc type structure, the tight piece of subsides is the silica gel material, the absorption groove has been seted up to the bottom intermediate position of tight piece of subsides, the fixed orifices that a plurality of equidistance distribute has been seted up to the outer wall of adjusting the pole, the screw hole has been seted up to the outer wall of fixed cylinder, the inner wall of screw hole has the dead screw rod through threaded connection, one end joint that the screw hole was kept away from the screw hole is in the fixed hole.
In some embodiments, a sealing element is arranged at the bottom of the flange and sleeved on the outer wall of the moving rod, and the sealing element is made of rubber.
In some embodiments, the speed measuring head comprises a speed measuring shell, the inner wall of the speed measuring shell is provided with a fixing frame, the outer wall of the fixing frame is connected with a rotating rod through a bearing, one end of the rotating rod is provided with a driving paddle, one end of the rotating rod, which is far away from the driving paddle, is provided with a closing coil, the closing coil is connected with an ammeter in series, the top inner wall and the bottom inner wall of the speed measuring shell are respectively provided with a first magnet and a second magnet, and the magnetic poles of one side, which are opposite, of the first magnet and the second magnet are opposite.
In some embodiments, an opening is formed at one end of the speed measuring shell, a deflector with an annular structure is arranged on the inner wall of the opening, and the cross section of the deflector is in a triangular structure.
In some embodiments, a baffle is disposed on an inner wall of the tachometer housing, and the baffle is located between the mount and the closing coil.
In some embodiments, the outer wall of the fixing frame is provided with a flow hole, the outer wall of the speed measuring shell is provided with a liquid outlet, and the cross sections of the flow hole and the liquid outlet are all isosceles trapezoid structures.
In some embodiments, the outer wall of the baffle is provided with a flow guiding block, and the flow guiding block is arranged in an arc surface opposite to the outer wall of the fixing frame.
In some embodiments, the outer wall of support sleeve is provided with the articulated pole, and the articulated pole is kept away from the one end of support sleeve and is articulated to have the dwang, the one end of dwang is provided with the fixed head, a plurality of equidistance spacing holes that distribute have been seted up to the outer wall of dwang, fixed head and spacing hole looks adaptation, the outer wall of dwang is provided with coupling spring, coupling spring keeps away from the one end of dwang and is connected with the outer wall of support sleeve.
In some embodiments, the end of the fixed head remote from the rotating rod is in a hemispherical structure.
In some embodiments, a pressing plate is arranged at one end of the rotating rod far away from the fixed head, and a non-slip protrusion is arranged on the outer wall of the pressing plate.
By adopting the technical scheme, the embodiment of the invention has the following advantages:
1. when the portable pressure pipeline flow velocity measurement device is used, firstly, the total length of the fixed cylinder and the adjusting rod is adjusted to be equal to the radius of the pressure pipeline according to the diameter of the pressure pipeline according to the scale marks, the velocity measuring head is placed into the pressure pipeline through the pressure pipeline interface, then the flange is in butt joint with the pipeline interface, the flange is fixed with the pressure pipeline interface through the bolts, then the moving rod is forced to move, when the tightening block is tightly attached to the inner wall of the pressure pipeline, the tightening block can be adsorbed and fixed with the inner wall of the pipeline through the adsorption groove, at the moment, the velocity measuring head is exactly positioned at the center of the pipeline to measure velocity, the velocity measuring head returns the measured data to the measuring moving meter to store and display the measured data in real time, the device is used for monitoring the flow velocity of water in the pressure pipeline in real time, the proper pressure detection construction time can be quickly found, the pressure detection construction is convenient, the velocity measuring head and the measuring meter can be installed on the pressure pipeline according to the calibers of different pressure pipelines, the flanges with different sizes are selected, the velocity measurement is not limited by the size, and the device is convenient to carry.
2. The portable pressurized pipeline flow velocity measuring device has the advantages that the rubber sealing piece can have a good sealing effect on the joint of the flange and the movable rod, the sealing performance of the flange is improved, and the occurrence of water leakage is avoided; when the liquid in the pipeline flows, the driving paddle is driven to rotate, the driving paddle rotates to drive the closed coil to conduct cutting magnetic induction line movement in a magnetic field formed by the first magnet and the second magnet, then current can be generated in the closed coil, and the flow velocity can be calculated according to the current value detected by the ammeter.
3. When the movable rod moves, the rotating rod is loosened, the rotating rod deflects under the action of the connecting spring, and the fixed head is embedded into the corresponding limiting hole, so that the movable rod is fixed, and the condition that the movable rod moves up and down during measurement is avoided; the surface of the fixing head with one hemispherical structure is smooth, so that the friction force of the fixing head entering the limiting hole can be reduced, and the fixing head can be conveniently clamped into the limiting hole; the rotating rod can be conveniently pressed to rotate through the pressing plate, and when the rotating rod is pressed, the anti-slip protrusions can have good anti-slip effect, so that the occurrence of slipping during pressing is avoided.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become apparent by reference to the drawings and the following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 2A;
fig. 5 is an enlarged schematic view of the structure at B in fig. 3.
Reference numerals:
1. measuring a shift meter; 2. a moving rod; 3. a limiting hole; 4. a rotating lever; 5. a hinge rod; 6. a connecting spring; 7. a flange; 8. a speed measuring head; 9. a fixed cylinder; 10. a fixed screw; 11. sticking the block; 12. an adjusting rod; 13. a support sleeve; 14. a seal; 15. a first magnet; 16. a baffle; 17. a flow guiding block; 18. driving the paddles; 19. a flow hole; 20. a deflector; 21. a fixing frame; 22. a liquid outlet; 23. a second magnet; 24. an ammeter; 25. a fixing hole; 26. a fixed head; 27. graduation marks.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples:
as shown in fig. 1-5, a portable pipeline flow rate measuring device with pressure comprises a supporting sleeve 13, a flange 7 is arranged at the bottom of the supporting sleeve 13, a movable rod 2 is connected to the inside of the supporting sleeve 13 in a sliding manner, a speed measuring head 8 is arranged at the bottom end of the movable rod 2, a measuring and moving table 1 is arranged at the top end of the movable rod 2, a positioning mechanism is arranged at the middle position of the bottom of the speed measuring head 8 and comprises a fixed cylinder 9 fixed at the bottom end of the speed measuring head 8, an adjusting rod 12 is connected to the inner wall of the fixed cylinder 9 in a sliding manner, scale marks 27 are arranged on the outer wall of the adjusting rod 12, a tightening block 11 is arranged at the bottom end of the adjusting rod 12, the tightening block 11 is of a circular arc structure, the tightening block 11 is of silica gel material, an adsorption groove is formed in the middle position of the bottom end of the tightening block 11, a plurality of equidistantly distributed fixing holes 25 are formed in the outer wall of the adjusting rod 12, threaded holes are formed in the outer wall of the fixed cylinder 9, a fixing screw 10 is connected to the inner wall of the threaded holes through threads, and one end of the fixing screw 10, which is far from the threaded holes, is clamped in the fixing holes 25.
In this embodiment, the bottom of the flange 7 is provided with a sealing element 14, and the sealing element 14 is sleeved on the outer wall of the moving rod 2, and the sealing element 14 is made of rubber. The sealing piece 14 made of rubber can have a good sealing effect on the joint of the flange 7 and the movable rod 2, so that the sealing performance of the flange 7 is improved, and the occurrence of water leakage is avoided.
In this embodiment, the speed measuring head 8 comprises a speed measuring shell, the inner wall of the speed measuring shell is provided with a fixing frame 21, the outer wall of the fixing frame 21 is connected with a rotating rod 4 through a bearing, one end of the rotating rod 4 is provided with a driving paddle 18, one end of the rotating rod 4, far away from the driving paddle 18, is provided with a closing coil, the closing coil is connected with an ammeter 24 in series, the top inner wall and the bottom inner wall of the speed measuring shell are respectively provided with a first magnet 15 and a second magnet 23, and magnetic poles of opposite sides of the first magnet 15 and the second magnet 23 are opposite. When the liquid in the pipeline flows, the driving paddle 18 is driven to rotate, the driving paddle 18 rotates to drive the closed coil to perform cutting magnetic induction line movement in the magnetic field formed by the first magnet 15 and the second magnet 23, current is generated in the closed coil, and the flow rate can be calculated according to the current value detected by the ammeter 24.
In this embodiment, an opening is formed at one end of the speed measuring housing, and a deflector 20 with an annular structure is disposed on an inner wall of the opening, and a cross section of the deflector 20 is in a triangular structure. When liquid flows into the speed measuring shell, the guide plate 20 can have a good guide effect, so that the liquid is conveniently fed into the driving paddle 18 to drive the liquid to rotate, and the error of flow speed detection is reduced.
In the present embodiment, the inner wall of the tachometer housing is provided with a baffle 16, and the baffle 16 is located between the mount 21 and the closing coil. The baffle 16 can play a good blocking effect on the water flow, and liquid is prevented from entering the speed measuring shell.
In this embodiment, the outer wall of the fixing frame 21 is provided with a flow hole 19, the outer wall of the velocity measurement housing is provided with a liquid outlet 22, and the cross sections of the flow hole 19 and the liquid outlet 22 are all isosceles trapezoid structures. The flow holes 19 and the liquid outlets 22 with isosceles trapezoid cross sections can increase the flow speed of liquid, avoid affecting the flow of the liquid during detection, and reduce the error of flow velocity measurement.
In this embodiment, the outer wall of the baffle 16 is provided with a guide block 17, and the guide block 17 is disposed opposite to the outer wall of the fixing frame 21 in a cambered surface. The cambered surface of the flow guiding block 17 can play a good role in guiding the liquid passing through the flow holes 19 into the liquid outlet 22, and can not block the flow of the liquid.
In this embodiment, the outer wall of the supporting sleeve 13 is provided with the articulated rod 5, and the one end that the articulated rod 5 kept away from the supporting sleeve 13 articulates there is the dwang 4, and the one end of dwang 4 is provided with the fixed head 26, and spacing hole 3 that a plurality of equidistance distribute have been seted up to the outer wall of dwang 2, fixed head 26 and spacing hole 3 looks adaptation, and the outer wall of dwang 4 is provided with connecting spring 6, and connecting spring 6 keeps away from the one end of dwang 4 and is connected with the outer wall of supporting sleeve 13. When the movable rod 2 moves, the rotary rod 4 is loosened, the rotary rod 4 deflects under the action of the connecting spring 6, and the fixing head 26 is embedded into the corresponding limiting hole 3, so that the movable rod 2 is fixed, and the condition that the movable rod 2 moves up and down during measurement is avoided.
In this embodiment, the end of the fixed head 26 remote from the rotating rod 4 has a hemispherical structure. The surface of the fixing head 26 with one end in a hemispherical structure is smooth, so that the friction force of the fixing head 26 entering the limiting hole 3 can be reduced, and the fixing head 26 can be conveniently clamped into the limiting hole 3.
In this embodiment, the end of the rotation rod 4 remote from the fixed head 26 is provided with a pressing plate, and the outer wall of the pressing plate is provided with a slip-preventing protrusion. The rotating rod 4 can be conveniently pressed to rotate through the pressing plate, and when the rotating rod is pressed, the anti-slip protrusions can have good anti-slip effect, so that the occurrence of slipping during pressing is avoided.
When the invention works, firstly, the total length of the fixed cylinder 9 and the adjusting rod 12 is adjusted to be equal to the radius of the pressurized pipeline according to the diameter of the pressurized pipeline according to the scale mark 27, the speed measuring head 8 is placed into the pressurized pipeline from the pressurized pipeline connector, then the flange 7 is butted with the pipeline connector, the flange 7 is fixed with the pressurized pipeline connector through bolts, then the movable rod 2 is forced to move, when the tightening block 11 is tightly adhered to the inner wall of the pressurized pipeline, the tightening block 11 can be adsorbed and fixed with the inner wall of the pipeline through the adsorption groove, at the moment, the speed measuring head 8 is exactly positioned at the center of the pipeline to measure the speed, the speed measuring head 8 returns the measured data to the measuring table 1 to store, and the measured data is displayed in real time, by adopting the device to monitor the flow velocity of water in the pressurized pipeline in real time, the proper pressurized detection construction time can be quickly found, the pressurized detection construction is convenient, the speed measuring head 8 and the measuring table 1 can be installed on the pressurized pipeline according to the diameters of different pressurized pipelines, and the flanges 7 with different sizes are selected to be convenient to use.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a portable pipeline velocity of flow measuring device under pressure, includes support sleeve (13), its characterized in that: the automatic speed measuring device is characterized in that a flange (7) is arranged at the bottom of the supporting sleeve (13), a movable rod (2) is connected to the inside of the supporting sleeve (13) in a sliding manner, a speed measuring head (8) is arranged at the bottom end of the movable rod (2), a measuring and moving table (1) is arranged at the top end of the movable rod (2), a positioning mechanism is arranged at the middle position of the bottom of the speed measuring head (8), the positioning mechanism comprises a fixed cylinder (9) fixed at the bottom end of the speed measuring head (8), an adjusting rod (12) is connected to the inner wall of the fixed cylinder (9) in a sliding manner, a scale mark (27) is arranged on the outer wall of the adjusting rod (12), a tightening block (11) is arranged at the bottom end of the adjusting rod (12), the tightening block (11) is of an arc structure, the tightening block (11) is made of silica gel, an adsorption groove is formed in the middle position of the bottom end of the tightening block (11), a plurality of equidistantly distributed fixing holes (25) are formed in the outer wall of the fixed cylinder (9), a threaded hole is formed in the outer wall of the fixed cylinder (9), and the threaded hole is connected with a fixed end (10) through threads, and the threaded hole (10) is far away from the threaded hole (25);
the speed measuring head (8) comprises a speed measuring shell, the inner wall of the speed measuring shell is provided with a fixing frame (21), the outer wall of the fixing frame (21) is connected with a rotating rod (4) through a bearing, one end of the rotating rod (4) is provided with a driving paddle (18), one end of the rotating rod (4) far away from the driving paddle (18) is provided with a closing coil, the closing coil is connected with an ammeter (24) in series, the inner walls of the top and the bottom of the speed measuring shell are respectively provided with a first magnet (15) and a second magnet (23), and the magnetic poles of the opposite sides of the first magnet (15) and the second magnet (23) are opposite; an opening is formed in one end of the speed measuring shell, a guide plate (20) with an annular structure is arranged on the inner wall of the opening, and the cross section of the guide plate (20) is of a triangular structure; the inner wall of the speed measuring shell is provided with a baffle plate (16), and the baffle plate (16) is positioned between the fixing frame (21) and the closing coil; the outer wall of the fixing frame (21) is provided with a flow hole (19), the outer wall of the speed measuring shell is provided with a liquid outlet (22), and the cross sections of the flow hole (19) and the liquid outlet (22) are of isosceles trapezoid structures; the outer wall of the baffle (16) is provided with a flow guide block (17), and the flow guide block (17) is arranged in an arc surface opposite to the outer wall of the fixing frame (21).
2. A portable pressurized conduit flow rate measurement device according to claim 1, wherein: the bottom of flange (7) is provided with sealing member (14), and sealing member (14) cup joints on the outer wall of movable rod (2), sealing member (14) are rubber material.
3. A portable pressurized conduit flow rate measurement device according to claim 1, wherein: the outer wall of support cover (13) is provided with articulated pole (5), and articulated pole (5) are kept away from the one end of support cover (13) and are articulated have dwang (4), the one end of dwang (4) is provided with fixed head (26), spacing hole (3) that a plurality of equidistances distributed have been seted up to the outer wall of dwang (2), fixed head (26) and spacing hole (3) looks adaptation, the outer wall of dwang (4) is provided with connecting spring (6), the one end that dwang (4) was kept away from to connecting spring (6) is connected with the outer wall of support cover (13).
4. A portable pressurized conduit flow rate measurement device according to claim 3, wherein: one end of the fixed head (26) far away from the rotating rod (4) is in a hemispherical structure.
5. The portable pressurized conduit flow rate measurement device of claim 4, wherein: the end of the rotating rod (4) far away from the fixed head (26) is provided with a pressing plate, and the outer wall of the pressing plate is provided with a non-slip protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111640295.5A CN114321734B (en) | 2021-12-29 | 2021-12-29 | Portable pipeline velocity of flow measuring device under pressure |
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| CN202111640295.5A CN114321734B (en) | 2021-12-29 | 2021-12-29 | Portable pipeline velocity of flow measuring device under pressure |
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| CN114321734B true CN114321734B (en) | 2024-01-09 |
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| CN117027770B (en) * | 2023-09-26 | 2023-12-29 | 奥宸科技有限公司 | Gas well wellhead pressure real-time monitoring device |
| CN117330140B (en) * | 2023-12-01 | 2024-03-08 | 山东省林业科学研究院 | Monitoring and measuring device for flow of wetland water channel |
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| CN107960751A (en) * | 2017-12-13 | 2018-04-27 | 郑州游爱网络技术有限公司 | A kind of convenient multifunction desk for adjusting height |
| CN209245725U (en) * | 2018-11-30 | 2019-08-13 | 刘含英 | A kind of municipal drainage pipeline intelligent flow meter |
| CN211450371U (en) * | 2019-12-11 | 2020-09-08 | 杭州新起点知识产权服务有限公司 | Waste water conveying pipeline monitoring device with flow velocity monitoring function |
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| CN214584973U (en) * | 2021-04-02 | 2021-11-02 | 俞英 | Concrete structure monitoring device for road bridge and tunnel |
| CN113687095A (en) * | 2021-09-17 | 2021-11-23 | 内江市博威能源有限公司 | Flow velocity detection device for fluid conveying and use method thereof |
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| CN114321734A (en) | 2022-04-12 |
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Denomination of invention: A portable pressure pipeline flow velocity measurement device Granted publication date: 20240109 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Songjiang sub branch Pledgor: Shanghai Guankang Technology Co.,Ltd. Registration number: Y2024310000180 |