CN111174736A - Liquid measuring device and method for measuring sectional area of pipeline or cable - Google Patents
Liquid measuring device and method for measuring sectional area of pipeline or cable Download PDFInfo
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- CN111174736A CN111174736A CN202010069654.5A CN202010069654A CN111174736A CN 111174736 A CN111174736 A CN 111174736A CN 202010069654 A CN202010069654 A CN 202010069654A CN 111174736 A CN111174736 A CN 111174736A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/20—Measuring arrangements characterised by the use of fluids for measuring areas, e.g. pneumatic planimeters
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Abstract
The application relates to a liquid measuring device and a liquid measuring method for measuring the sectional area of a pipeline or a cable, wherein the measuring device comprises a container filled with liquid, the sectional areas of the container at different heights are the same, scale marks are arranged on the side wall of the container, a fixing component is arranged at the top of the container, and the metal pipeline or the cable is hung in the container by the fixing component in a vertically movable mode. The invention has the beneficial effects that: the invention designs a liquid measuring device and a liquid measuring method for measuring the sectional area of a pipeline or a cable, the measuring device and the measuring method improve the traditional measuring method of the sectional area micrometer of the metal oil and gas pipeline or the transmission cable and the formula calculation, can indirectly calculate the irregular sectional area of the metal oil and gas pipeline or the transmission cable by using a liquid volume displacement mode, have simple operation, convenience and reliability, are intuitive and effective in data acquisition, greatly improve the efficiency of the work, and have strong popularization.
Description
Technical Field
The application belongs to the field of industrial equipment test measurement, and particularly relates to a liquid measuring device and a liquid measuring method for measuring the sectional area of a pipeline or a cable.
Background
Since petroleum industry or electric power industry research institutions often need to measure the sectional area of metal oil and gas pipelines or transmission and transformation cables frequently for the purpose of scientific research on the metal pipelines or transmission and transformation cables, the sections of the metal oil and gas pipelines or the transmission and transformation cables are not regular in shape, for example, the sections of metal oil and gas pipeline slices are often circular, elliptical, fan-shaped and the like, and the sections of single-strand or multi-strand transmission cables are circular, rectangular, elliptical, fan-shaped, S-shaped or Z-shaped. The traditional measuring method is to use a micrometer to directly measure after cutting a section of sample, calculate the regular sectional area by a formula calculation method, and obtain the sectional area by a series of means such as weighing, length and density for the irregular complicated sectional area. The operation process is complex, the measurement point is difficult to select, and the error of final calculation is often larger due to the influence of the operation technique of the working personnel. Therefore, there is a need to improve the conventional method for measuring the cross-sectional area of metal oil and gas pipelines or power transmission cables, and to design a measuring device and a measuring method for measuring the irregular cross-sectional area of metal pipelines or cables.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the defects in the prior art, the measuring device and the measuring method which can indirectly calculate the irregular sectional area of the metal oil-gas pipeline or the power transmission cable by using a liquid volume displacement mode are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a liquid measuring device for measuring the sectional area of a pipeline or a cable comprises a container filled with liquid, the sectional areas of the container at different heights are the same, scale marks are arranged on the side wall of the container, a fixing component is arranged at the top of the container, and a metal pipeline or a cable is hung in the container by the fixing component in a vertically movable mode.
In one embodiment, the container is a glass container.
In one embodiment, the graduation marks are provided on the inner side of the side wall.
In one embodiment, the fixing assembly comprises a fixing clamp, a support rod, a rotating screw rod, a rotating handle and a fixing claw, the fixing clamp is clamped with the top of the container, the support rod is vertically fixed on the fixing clamp, the rotating screw rod is rotatably arranged at the top end of the support rod, one end of the rotating screw rod is fixed with the fixing claw, the other end of the rotating screw rod is fixed with the rotating handle, and the rotating handle is rotated to enable the fixing claw to fasten or loosen the metal pipe or cable.
In one embodiment, the fixed jaw is in the shape of an arc that conforms to the metal pipe or cable.
In one embodiment, the container is a cuboid, cube or cylinder.
In one embodiment, the container is marked with the area of the bottom surface of the container.
In one embodiment, the liquid is water.
In one embodiment, the length of the scale line is more than or equal to 3 cm.
A measuring method of a liquid measuring device for measuring the sectional area of a pipeline or a cable comprises a container filled with liquid, scale marks are arranged on the side wall of the container, a fixing component is arranged at the top of the container, and a metal pipeline or a cable is hung in the container by the fixing component in a vertically movable mode, wherein the measuring method comprises the following steps:
step 10, placing the container on a flat working platform;
step (ii) of20, filling the container with liquid, reading and recording the liquid level H1；
Step 30, putting the metal pipe or the cable downwards into a container until the bottom end of the metal pipe or the cable is contacted with the bottom surface of the container, and suspending and fixing the metal pipe or the cable by the fixing component;
step 40, reading and recording the liquid level height H after the water surface is calm2；
Step 50, recording the area S of the bottom surface of the container, and determining the cross-sectional area S ″ (H) of the metal pipe or cable2-H1)*S/H2When the cable is an n-core wire, the cross-sectional area S' ″ of each core wire is (H)2S-H1S)/nH2。
The invention has the beneficial effects that: the invention designs a liquid measuring device and a liquid measuring method for measuring the sectional area of a pipeline or a cable, the measuring device and the measuring method improve the traditional measuring method of the sectional area micrometer of the metal oil and gas pipeline or the transmission cable and the formula calculation, can indirectly calculate the irregular sectional area of the metal oil and gas pipeline or the transmission cable by using a liquid volume displacement mode, have simple operation, convenience and reliability, are intuitive and effective in data acquisition, greatly improve the efficiency of the work, and have strong popularization.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
FIG. 1 is a schematic structural diagram of a liquid measuring device for measuring the cross-sectional area of a pipe or a cable according to an embodiment of the present application;
FIG. 2 is one of the working schematic diagrams of the liquid measuring device for measuring the cross-sectional area of a pipe or a cable according to the embodiment of the present application;
fig. 3 is a second schematic diagram of the liquid measuring apparatus for measuring the cross-sectional area of a pipe or a cable according to the embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The principle of the invention lies in that the water level in the measuring device is increased by placing a metal pipeline or a cable in liquid in a liquid volume replacement mode, and then the irregular sectional area of the metal oil gas pipeline or the power transmission cable is indirectly calculated by using water with the same volume.
Referring to fig. 1, a liquid measuring device for measuring the cross-sectional area of a pipe or a cable includes a regular-shaped container 1 containing liquid 8, the cross-sectional areas of the container 1 at different heights are the same, scale marks 2 are provided on the sidewall of the container 1, a fixing component is provided on the top of the container 1, and a metal pipe or a cable is suspended in the container 1 by the fixing component in a way of moving up and down. In this embodiment, a fixing member is provided at the top end of the body on each side of the glass container 1.
In one embodiment, the container 1 is a glass container, which is used to better observe the water level.
In one embodiment, the scale lines 2 are arranged on the inner side of the side wall, and the scale lines 2 are in millimeter level. In one embodiment, the graduation marks 2 are provided on the side wall facing the worker. The scale marks 2 are arranged on the inner side of the container 1, so that if the scale marks 2 are arranged on the outer side, errors exist between the actual water surface condition and the scale corresponding to the light refraction and reflection of the container 1, particularly a glass container body.
In one embodiment, the fixing assembly comprises a fixing clamp 3, a supporting rod 4, a rotating screw rod 5, a rotating handle 6 and a fixing claw 7, the fixing clamp 3 is clamped with the top of the container 1, the supporting rod 4 is vertically fixed on the fixing clamp 3, the rotating screw rod 5 is rotatably arranged at the top end of the supporting rod 4, one end of the rotating screw rod 5 is fixed with the fixing claw 7, the other end of the rotating screw rod 5 is fixed with the rotating handle 6, and the rotating handle 6 is rotated to enable the fixing claw 7 to fasten or loosen a metal pipeline or a cable.
In one embodiment, the holding claw 7 is in the shape of an arc adapted to a metal pipe or cable. When measuring the metal pipeline or the cable, a worker can rotate the rotary screw 5 by holding the rotary handle 6 to achieve the purpose of fastening or loosening a measured test article, and the metal pipeline or the cable can be conveniently fixed by the shape of the fixing claw 7.
To facilitate the measurement of the volume of overflow liquid 8, in one embodiment the container 1 is a cuboid, cube or cylinder.
In one embodiment, the container 1 is marked with the area of the base of the container 1, which is generally directly specified and can also be determined by measuring the internal base side length.
In one embodiment, the liquid 8 contained in the container 1 is water.
To reduce errors, in one embodiment, the length of the graduation marks 2 is equal to or greater than 3 cm.
The invention also discloses a liquid measuring device measuring method for measuring the sectional area of the pipeline or the cable, the measuring device comprises a container 1 containing liquid 8, scale marks are arranged on the side wall of the container 1, a fixing component is arranged at the top of the container 1, the metal pipeline or the cable is suspended in the container 1 by the fixing component in a way of moving up and down, and the measuring method comprises the following steps:
referring to fig. 2, step 10, the container 1 is placed on a flat work platform;
step 20, filling the liquid 8 into the container 1, reading and recording the liquid level height H1；
Referring to fig. 3, step 30, a metal pipe or cable is put down into the container 1 until the bottom end of the metal pipe or cable contacts the bottom surface of the container 1, and a fixing assembly hangs and fixes the metal pipe or cable;
step 40, reading and recording the liquid level height H after the water surface is calm2；
Step 50, recording the area S of the bottom surface of the container 1, and determining the cross-sectional area S ″ (H) of the metal pipe or cable2-H1)*S/H2When the cable is an n-core wire, the cross-sectional area S' ″ of each core wire is (H)2S-H1S)/nH2。
In one embodiment, a slice of a metal pipe of a sector cross-section is taken for measurement. The method comprises the following specific steps:
(1) place measuring device on the good workstation of level, the one side that has the scale is towards the staff, then loosens great margin to both sides with fixed subassembly according to the sample size condition. The internal floor area S of the measuring device is then determined (this value is generally given directly, but can also be determined by measuring the internal floor length).
(2) The measuring device is filled with a proper amount of water, the water amount is only half of the full scale, the water amount is not too much for observation, and the water level can reach about 10 cm. When water is injected, the water surface is gradually raised to prevent water drops from splashing on the water surfaceThe walls of the vessel, causing measurement errors. After the water surface is oscillated and calmed down and the horizontal plane is stabilized, the height H of the water surface at the moment is read and recorded1. Considering the wall attachment effect of water on the wall of the glass container, the scale marks 2 of the millimeter scale arranged on the inner side of the glass container are all longer and can directly reach the position of the horizontal plane, and the scale marks which are superposed with the horizontal plane are read during reading, but the highest position of the wall attachment position of the water is not read.
(3) The flat section of the metal pipeline slice is downwards placed into a measuring device, the section of the metal pipeline slice is in good contact with the bottom of a glass container of the measuring device, and then the metal pipeline slice is firmly fixed by a fixing assembly. The placing is as stable as possible, and the water surface is prevented from violent oscillation.
(4) After the water level is settled, the height H of the water level at the moment is read and recorded2. In view of the coanda effect of water on the glass wall, the reading should still be taken with the graduation marks 2 coinciding with the horizontal plane, but not with the highest position at which the water is attached to the wall. At this time H2And is also the physical length of the metal pipe slice.
(5) Assuming that the sectional area of the metal pipe segment is S' and the height of the water surface elevation is Δ H, Δ H is H2-H1. The volume of the water surface rising part is Δ V ═ Δ H × S, and Δ V should contain a part of the volume of the rising water (i.e. by H)1Water quantity H for high metal pipeline slicing and extruding1S ') and Δ H length of the metal pipe section Δ H S', i.e., Δ V H1S '+ Δ H × S'. I.e. Δ H ═ S ═ H1S '+ Δ H × S', and further substituted Δ H ═ H2-H1. Finally, S ═ H can be obtained2-H1)*S/H2. Namely, the sectional area S ═ H of the metal pipeline section is calculated by using a formula2-H1)*S/H2(ii) a Similarly, for an n-core wire, the cross-sectional area S' ″ of each core wire is (H)2S-H1S)/nH2。
The invention has the beneficial effects that: the invention designs a liquid measuring device and a liquid measuring method for measuring the sectional area of a pipeline or a cable, the measuring device and the measuring method improve the traditional measuring method of the sectional area micrometer of the metal oil and gas pipeline or the transmission cable and the formula calculation, can indirectly calculate the irregular sectional area of the metal oil and gas pipeline or the transmission cable by using a liquid volume displacement mode, have simple operation, convenience and reliability, are intuitive and effective in data acquisition, greatly improve the efficiency of the work, and have strong popularization.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A liquid measuring device for measuring the sectional area of a pipeline or a cable is characterized by comprising a container filled with liquid, the sectional areas of the container at different heights are the same, scale marks are arranged on the side wall of the container, a fixing component is arranged at the top of the container, and a metal pipeline or a cable is hung in the container by the fixing component in a vertically movable mode.
2. A liquid measuring device as claimed in claim 1, wherein the vessel is a glass vessel.
3. A liquid measuring apparatus as claimed in claim 2, wherein said graduations are provided on the inside of said side walls.
4. A liquid measuring device for measuring the cross-sectional area of a pipe or cable as claimed in claim 1, wherein said fixing assembly comprises a fixing clip, a supporting rod, a rotating screw, a rotating handle and a fixing claw, said fixing clip is clamped with the top of said container, said supporting rod is vertically fixed on said fixing clip, said rotating screw is rotatably disposed at the top end of said supporting rod, one end of said rotating screw is fixed on said fixing claw, the other end of said rotating screw is fixed on said rotating handle, and said rotating handle is rotated to make said fixing claw fasten or loosen said metal pipe or cable.
5. A liquid measuring apparatus as claimed in claim 4, wherein said holding jaw is arcuate to conform to the shape of the metal pipe or cable.
6. A liquid measuring apparatus as claimed in claim 1, wherein the vessel is a cuboid, cube or cylinder.
7. A liquid measuring apparatus as claimed in claim 6, wherein the vessel is marked with the area of the bottom of the vessel.
8. A liquid measuring apparatus as claimed in claim 1, wherein the liquid is water.
9. A liquid measuring apparatus for measuring the cross-sectional area of a pipe or cable as claimed in claim 1, wherein the length of the scale line is 3cm or more.
10. A method for measuring the sectional area of a pipeline or a cable by a liquid measuring device is characterized in that the measuring device comprises a container filled with liquid, scale marks are arranged on the side wall of the container, a fixing component is arranged at the top of the container, and a metal pipeline or a cable is suspended in the container by the fixing component in a way that the metal pipeline or the cable can move up and down, and the measuring method comprises the following steps:
step 10, placing the container on a flat working platform;
step 20, injecting liquid into the container, reading and recording the liquid level height H1；
Step 30, putting the metal pipe or the cable downwards into a container until the bottom end of the metal pipe or the cable is contacted with the bottom surface of the container, and suspending and fixing the metal pipe or the cable by the fixing component;
step 40, reading and recording the liquid level height H after the water surface is calm2；
Step 50, recording the area S of the bottom surface of the container, and determining the cross-sectional area S ″ (H) of the metal pipe or cable2-H1)*S/H2When the cable is an n-core wire, the cross-sectional area S' ″ of each core wire is (H)2S-H1S)/nH2。
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| CN202010069654.5A CN111174736A (en) | 2020-01-21 | 2020-01-21 | Liquid measuring device and method for measuring sectional area of pipeline or cable |
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| CN202010069654.5A CN111174736A (en) | 2020-01-21 | 2020-01-21 | Liquid measuring device and method for measuring sectional area of pipeline or cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791188A (en) * | 2021-10-14 | 2021-12-14 | 同济大学 | Device and method for measuring corrosion rate of surface of steel pipe |
| CN114440803A (en) * | 2021-12-31 | 2022-05-06 | 深圳供电局有限公司 | Cross-sectional area measuring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035157A (en) * | 1987-12-24 | 1989-08-30 | 西屋电气公司 | The determining method of turbine blade cross-section area and device thereof |
| JPH03205505A (en) * | 1989-10-19 | 1991-09-09 | Nissan Motor Co Ltd | Transverse section area measuring instrument |
| WO2015155331A1 (en) * | 2014-04-10 | 2015-10-15 | Peracutus Holding B.V. | Process for the determination of the cross-sectional area and volume of an object |
| CN106441172A (en) * | 2016-11-11 | 2017-02-22 | 哈尔滨广瀚动力传动有限公司 | Space curved surface section area measurement device |
| CN109115133A (en) * | 2018-07-20 | 2019-01-01 | 国网重庆市电力公司电力科学研究院 | A kind of cable conductor or the quick device for accurately measuring of insulating layer sectional area |
| CN211824309U (en) * | 2020-01-21 | 2020-10-30 | 国网河南省电力公司电力科学研究院 | Liquid measuring device for measuring sectional area of pipeline or cable |
-
2020
- 2020-01-21 CN CN202010069654.5A patent/CN111174736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035157A (en) * | 1987-12-24 | 1989-08-30 | 西屋电气公司 | The determining method of turbine blade cross-section area and device thereof |
| JPH03205505A (en) * | 1989-10-19 | 1991-09-09 | Nissan Motor Co Ltd | Transverse section area measuring instrument |
| WO2015155331A1 (en) * | 2014-04-10 | 2015-10-15 | Peracutus Holding B.V. | Process for the determination of the cross-sectional area and volume of an object |
| CN106441172A (en) * | 2016-11-11 | 2017-02-22 | 哈尔滨广瀚动力传动有限公司 | Space curved surface section area measurement device |
| CN109115133A (en) * | 2018-07-20 | 2019-01-01 | 国网重庆市电力公司电力科学研究院 | A kind of cable conductor or the quick device for accurately measuring of insulating layer sectional area |
| CN211824309U (en) * | 2020-01-21 | 2020-10-30 | 国网河南省电力公司电力科学研究院 | Liquid measuring device for measuring sectional area of pipeline or cable |
Non-Patent Citations (3)
| Title |
|---|
| 石舜华123: "《百度》", 20 October 2017 * |
| 赵美珍等: "《初中物理基础知识》", 30 April 2004, 山西教育出版社 * |
| 魏仁等: "卡尺法和排水法测试钢筋表观参数的有效性分析", 《河南城建学院学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791188A (en) * | 2021-10-14 | 2021-12-14 | 同济大学 | Device and method for measuring corrosion rate of surface of steel pipe |
| CN113791188B (en) * | 2021-10-14 | 2022-05-17 | 同济大学 | Device and method for measuring corrosion rate of surface of steel pipe |
| CN114440803A (en) * | 2021-12-31 | 2022-05-06 | 深圳供电局有限公司 | Cross-sectional area measuring device |
| CN114440803B (en) * | 2021-12-31 | 2023-06-06 | 深圳供电局有限公司 | Cross-sectional area measuring device |
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Application publication date: 20200519 |