CN116734944B - Probe fixing device, probe assembly and pipeline outer diameter measuring method - Google Patents
Probe fixing device, probe assembly and pipeline outer diameter measuring method Download PDFInfo
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- CN116734944B CN116734944B CN202311023828.4A CN202311023828A CN116734944B CN 116734944 B CN116734944 B CN 116734944B CN 202311023828 A CN202311023828 A CN 202311023828A CN 116734944 B CN116734944 B CN 116734944B
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- 239000000523 sample Substances 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000005259 measurement Methods 0.000 abstract description 18
- 239000012530 fluid Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention provides a probe fixing device, a probe assembly and a pipeline outer diameter measuring method, wherein the probe fixing device comprises a shell and a tensioning mechanism, the tensioning mechanism is positioned in the shell, an opening, a fixing piece and a first connecting part are arranged on the shell, and the fixing piece is used for being fixedly connected with an ultrasonic probe; the tensioning mechanism comprises a tensioning piece and a second connecting part, the tensioning piece is positioned in the shell, one end of the tensioning piece extends out of the shell through the opening and is connected with the second connecting part, the second connecting part is always positioned outside the shell, and the second connecting part is detachably connected with the first connecting part; the tensioning piece is provided with scale marks, and when the surface of the sensor of the ultrasonic probe is clung to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale marks of the tensioning piece on the first connecting part. Therefore, the invention can improve the accuracy, convenience and safety of ultrasonic measurement.
Description
Technical Field
The invention relates to the technical field of measuring instrument parts, in particular to a probe fixing device, a probe assembly and a pipeline outer diameter measuring method.
Background
Ultrasonic flow meters are meters that measure flow by detecting the effect of fluid flow on an ultrasonic beam or pulse, and are a commonly used flow measurement device that uses the characteristics of ultrasonic waves to measure the flow rate and flow of a fluid. The non-contact meter can be used for measuring the medium flow with large pipe diameter and the medium which is not easy to contact and observe. The measuring accuracy is very high, the highest mounting accuracy of the external clamp can reach +/-0.5 percent, the interference of various parameters of the measured medium is hardly caused, and the flow measuring problems of strong corrosiveness, non-conductivity, radioactivity, inflammable and explosive mediums and the like which cannot be solved by other instruments can be solved.
Ultrasonic flow meters play an important role in many fields. The device can be used for monitoring and controlling the flow rate and flow of fluid, ensuring the stability and efficiency of the production process, protecting the environment, optimizing energy management and providing accurate measurement data in the medical and scientific fields. Along with the continuous development of science and technology, the ultrasonic flowmeter can play a larger role in various fields, and bring more convenience and benefit to the production and life of human beings.
The ultrasonic flowmeter mainly comprises an ultrasonic transmitting probe, an ultrasonic receiving probe, a host, a connecting wire and the like, wherein the host generally comprises an electronic circuit, a flow display, a storage system, a power supply system and the like. The ultrasonic emission probe is mainly used for generating ultrasonic waves to radiate to the fluid; the ultrasonic wave transmitting probe mainly receives ultrasonic waves after passing through the fluid; the host machine mainly amplifies and converts the received ultrasonic wave by an electronic circuit, and sends the flow to the display in the form of an electric signal to represent the result.
When the ultrasonic emission probe is installed, the outer diameter of the pipeline needs to be measured, and the outer diameter of the pipeline is input into a corresponding interface of a host computer of the ultrasonic flowmeter. After the ultrasonic probe is connected with the wire, the surface of the sensor of the ultrasonic probe is filled with silica gel, then the ultrasonic probe is fixed on an iron pipeline through a magnet of the ultrasonic probe, and if the signal intensity of the instrument is not good, the position of the ultrasonic probe is finely adjusted until the signal of the instrument reaches a specified range.
However, the existing ultrasonic measurement has the following two problems:
firstly, for a non-iron pipeline, the probe cannot be fixed through a magnet, and under a vibration environment, the probe is easy to move on the pipeline and can influence a measurement result;
secondly, measuring tools such as a tape measure or a ruler are needed to be used for measuring the outer diameter of the pipeline, the outer diameter of the pipeline is required to be contacted when the measuring tools are used for measuring the outer diameter of the pipeline so as to ensure the measuring precision, and if the temperature of the outer wall of the pipeline is too high, the measuring precision is influenced due to inconvenient manual operation and certain safety risks are also caused for measuring staff.
Therefore, there is a need to improve the accuracy and convenience of ultrasonic measurement.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a probe fixing device, a probe assembly and a method for measuring the outer diameter of a pipe, so as to improve the accuracy and convenience of ultrasonic measurement.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a probe fixing device, comprising a shell and a tensioning mechanism, wherein the tensioning mechanism is positioned in the shell, an opening, a fixing piece and a first connecting part are arranged on the shell, and the fixing piece is used for being fixedly connected with an ultrasonic probe;
the tensioning mechanism comprises a tensioning piece and a second connecting part, the tensioning piece is positioned in the shell, one end of the tensioning piece extends out of the shell through the opening and is connected with the second connecting part, the second connecting part is always positioned outside the shell, and the second connecting part is detachably connected with the first connecting part;
the tensioning piece is provided with scale marks, and when the surface of the sensor of the ultrasonic probe is clung to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale marks of the tensioning piece on the first connecting part.
The invention has the beneficial effects that: the probe fixing device is fixed on the ultrasonic probe through the fixing piece, when the ultrasonic probe is positioned on a pipeline to be tested, the tensioning piece is pulled out through the second connecting part of the probe fixing device and is fixed on the first connecting part after winding the pipeline to be tested for one circle, and at the moment, the ultrasonic probe can be firmly fixed on the pipeline to be tested through the tensioning piece under the acting force of the tensioning piece even in a non-iron pipeline or vibration environment so as to ensure accurate measurement of the ultrasonic probe; meanwhile, the pipe diameter of the pipeline to be measured can be measured through the scale mark carried by the tensioning piece, other measuring tools are not needed, contact with the pipeline to be measured can be reduced, and the safety risk of measuring staff is reduced, so that the accuracy, convenience and safety of ultrasonic measurement are improved.
Optionally, the opening and the second connection portion are located on one side of the housing, and the first connection portion is located on an opposite side of the housing from the second connection portion;
when the surface of the sensor of the ultrasonic probe is clung to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale mark of the tensioning piece on the first connecting part and the height and the width of the ultrasonic probe.
Optionally, the opening is located at the top, and the first connection portion and the second connection portion are located at the top of the housing;
when the surface of the sensor of the ultrasonic probe is clung to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale mark of the tensioning piece on the first connecting part and the integral height of the probe assembly.
According to the above description, two schemes for position distribution are provided, so that the installation of the probe assembly and the pipeline to be tested is facilitated, and different parameters are adopted for different schemes for position distribution to measure the pipe diameter of the pipeline to be tested.
Optionally, the tensioning mechanism is tape measure mechanism, the tensioning piece includes chi spring and chi strip, the casing still includes the jackshaft, the chi spring is located in the casing, the one end of chi strip with the chi spring is connected, the other end of chi strip passes through the opening stretches out outside the casing, and with the second connecting portion is connected, the one end that keeps away from the chi strip on the chi spring is fixed on the jackshaft and its own winding is on the jackshaft.
According to the description, the contraction and the stretching of the tension piece are realized through the tape measure mechanism, and the tension piece has a fastening effect on the ultrasonic probe and the pipeline to be tested in a stretched state, so that the stable measurement of the ultrasonic probe is ensured.
Optionally, the second connecting portion is a cylindrical end, the first connecting portion is an inverted hook portion, and the cylindrical end is detachably connected with the hook portion.
According to the description, the cylindrical end is buckled in the groove of the hook part to realize connection of the cylindrical end and the hook part, and meanwhile, the cylindrical end is separated from the groove of the hook part through the space below the hook part to realize disassembly of the cylindrical end and the hook part, so that the first connecting part and the second connecting part are detachably connected.
Optionally, the casing is omega type, the mounting includes the screw, be provided with the screw on the both sides plane portion of casing, the screw with screw threaded connection, the screw is used for with ultrasonic probe fixed connection.
As is apparent from the above description, the fixed connection of the probe fixing device and the ultrasonic probe is achieved by the screw.
According to the description, the contraction and the stretching of the tension piece are realized through the tape measure mechanism, and the tension piece has a fastening effect on the ultrasonic probe and the pipeline to be tested in a stretched state, so that the stable measurement of the ultrasonic probe is ensured.
In a second aspect, the present invention provides a probe assembly comprising an ultrasonic probe and the probe fixture of the first aspect, the probe fixture being secured to a mounting surface of the ultrasonic probe opposite to a surface on which the sensor is located.
In a third aspect, the present invention provides a method of measuring the outside diameter of a pipe using a probe assembly as in the second aspect, comprising the steps of:
placing the surface of the sensor of the ultrasonic probe on the outer wall of the pipeline to be tested;
the tensioning piece is driven to bypass the pipeline to be tested through the second connecting part, and the second connecting part is movably connected with the first connecting part;
and obtaining the pipe diameter of the pipeline to be tested according to the scale mark of the tensioning piece on the first connecting part.
Optionally, when the first connection portion and the second connection portion are located at two sides of the housing, obtaining the pipe diameter of the pipe to be measured according to the scale mark of the tensioning member on the first connection portion includes:
the scale mark L of the tensioning piece on the first connecting part, the height n of the ultrasonic probe and the width m of one half of the ultrasonic probe are obtained and substituted into the following equation:
m 2 +(n+R) 2 =R 2 +L 1 2
α=arctan(m/(n+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =L/2
wherein R is the radius of the pipeline to be tested, L 1 For the distance between the point A of the opening of the tightening piece and the point B of the tangency point of the tightening piece and the pipeline to be tested, L 2 In order to enable the distance from the point B to the point C, which is the positive opposite point of the ultrasonic probe, on the pipeline to be tested, alpha is an included angle between a straight line formed by the point B to the center of the circle of the pipeline to be tested and a straight line formed by the point C and the midpoint of the ultrasonic probe;
and obtaining the radius R of the pipeline to be tested according to the equation, and obtaining the pipeline outer diameter 2R of the pipeline to be tested.
Optionally, when the first connecting portion and the second connecting portion are both located at the top of the housing, obtaining the pipe diameter of the pipe to be measured according to the scale mark of the tensioning member on the first connecting portion includes:
the scale mark L' of the tensioning piece on the first connecting part and the integral height N of the probe assembly are obtained and substituted into the following equation:
(N+R) 2 =R 2 +L 1 ’ 2
α’=arctan(L 1 ’/R)
(180-α’)/180=L 2 ’/(πR)
L 1 ’+L 2 ’=L’/2
wherein R is the radius of the pipeline to be tested, L 1 ' is the distance L from the point A ' of the opening to the point B ' of the tangent point of the tightening piece and the pipeline to be tested 2 'is the distance from the point B' to the point C on the pipeline to be tested, which is opposite to the ultrasonic probe, and alpha 'is the included angle between the straight line formed by the point B' and the center of the circle of the pipeline to be tested and the straight line formed by the point C and the point C of the ultrasonic probe;
and obtaining the radius R of the pipeline to be tested according to the equation, and obtaining the pipeline outer diameter 2R of the pipeline to be tested.
Wherein the technical effects corresponding to the probe assembly provided in the second aspect and the method for measuring the outer diameter of the pipeline provided in the third aspect are described with reference to the related description of the probe fixing device provided in the first aspect.
Drawings
FIG. 1 is a perspective view of a probe fixing device according to an embodiment of the present invention;
FIG. 2 is a perspective view of a probe fixing apparatus according to an embodiment of the present invention after a cover is removed;
FIG. 3 is a schematic perspective view of a probe assembly according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of the outside surface of a probe assembly with the cover removed, in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating the cooperation of a probe assembly and a pipeline to be tested according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a probe assembly and a pipeline under test according to an embodiment of the present invention;
FIG. 7 is a perspective view of a probe fixture according to an embodiment of the invention with a cover removed;
FIG. 8 is a schematic perspective view of a probe assembly according to an embodiment of the present invention;
FIG. 9 is a schematic illustration of the exterior side of a probe assembly with the cover removed, in accordance with an embodiment of the present invention;
FIG. 10 is a schematic illustration of a probe assembly and a pipeline under test according to an embodiment of the present invention;
fig. 11 is a flow chart of a method for measuring an outer diameter of a pipe according to an embodiment of the invention.
[ reference numerals description ]
1. A probe fixing device; 11. a housing; 111. an opening; 112. a hook part; 113. an intermediate shaft; 114. a screw hole; 115. a cover body; 12. a tape measure mechanism; 121. a ruler spring; 122. a ruler strip; 123. a cylindrical end;
2. an ultrasonic probe;
100. and (5) a pipeline to be tested.
Detailed Description
In order that the above-described aspects may be better understood, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
Referring to fig. 1 to 2, a probe fixing device according to the present embodiment is applied to a pipeline requiring measurement of internal fluid. The probe fixing apparatus 1 of the present embodiment is mounted on the ultrasonic probe 2 to form a probe assembly, and specific matching may refer to fig. 3 and 4, and matching based on the probe assembly and the pipe 100 to be tested may refer to fig. 5, so that the probe fixing apparatus 1 of the present embodiment may fasten the ultrasonic probe 2 to the pipe 100 to be tested.
Specifically, a probe fixing apparatus in this embodiment includes a housing 11 and a tightening mechanism located in the housing 11. Wherein, the casing 11 is provided with an opening 111, a fixing member for fixedly connecting with the ultrasonic probe 2, an intermediate shaft 113, and a first connecting portion. The tensioning mechanism comprises a tensioning piece and a second connecting portion, the tensioning piece is located in the shell 11, one end of the tensioning piece extends out of the shell 11 through the opening 111 and is connected with the second connecting portion, the second connecting portion is located outside the shell 11 all the time, and the second connecting portion is detachably connected with the first connecting portion.
As shown in fig. 1, the housing 11 is of an Ω -type, and, from a shape, includes a middle arch portion and two planar portions on both sides; from the structural aspect, the device comprises an omega-shaped shell and a cover body 115 on one side, wherein the omega-shaped shell and the cover body 115 form a containing cavity for placing the tensioning mechanism. Wherein, the two side extensions of the shell 11 are flush with the two side extensions of the mounting surface of the ultrasonic probe 2, refer to fig. 4.
Screw holes 114 are formed in the two side planar portions of the housing 11, and in this embodiment, two screw holes 114 are formed in the two side planar portions of the housing 11. The fixing member includes a screw, which is screwed with the screw hole 114, and then is fixedly connected with the ultrasonic probe 2.
As shown in fig. 1 and 2, in the present embodiment, the tension mechanism is a tape measure mechanism 12, the tension member includes a tape spring 121 and a tape 122, the tape spring 121 is located in the housing 11, one end of the tape 122 is connected with the tape spring 121, the other end of the tape 122 extends out of the housing 11 through the opening 111 and is connected with the second connecting portion, and one end of the tape spring 121 far away from the tape 122 is fixed on the intermediate shaft 113 and is wound on the intermediate shaft 113.
Referring to fig. 1, the rule 122 in this embodiment includes a wide portion extending out of the housing 11 and a narrow portion located in the housing 11, wherein the narrow portion has a lateral dimension smaller than the dimension of the opening 111, and the wide portion has a lateral dimension larger than the dimension of the opening 111, so that the wide portion of the rule 122 is clamped outside the bayonet, and the second connecting portion is located outside the housing 11, which is convenient for the measurement personnel to operate. Similarly, another alternative is: the overall transverse dimension of the ruler strip 122 is smaller than the dimension of the opening 111, and the ruler strip is clamped outside the opening 111 through the second connecting portion, and at this time, the transverse dimension or the vertical dimension of the second connecting portion is larger than the dimension of the opening 111.
As shown in fig. 1 and 2, the second connection portion is a cylindrical end 123, the first connection portion is an inverted hook portion 112, and the cylindrical end 123 is detachably connected to the hook portion 112. It is understood that in other embodiments, the first connection portion and the second connection portion may be a detachable connection combination of the hanging hole and the ruler hook, or may be a magnetic assembly. The cylindrical end 123 may be replaced by a square end, a sphere end, or other end pieces, and the groove shape of the hook 112 may be a square groove or a sphere groove.
In the present embodiment, as shown in fig. 1 and 2, the opening 111 and the cylindrical end 123 are located on one side of the housing 11, and the hooking portion 112 is located on the opposite side of the housing 11 from the cylindrical end 123, i.e., the cylindrical end 123 and the hooking portion 112 are located on both side plane portions of the housing 11, respectively.
In this embodiment, scale bar 122 is provided with scale marks, through which the pipe diameter measurement of pipe 100 to be measured can be performed.
In this embodiment, the housing 11 is made of plastic, the ruler spring 121 is made of 50# carbon steel, has strong toughness, can shrink automatically, and the ruler strip 122 is made of 50# primary strip steel, and has a thickness of about 0.1mm.
Thus, referring to fig. 3 and 4, it can be seen that the probe fixing device 1 is installed on the ultrasonic probe 2 to form a probe assembly, and referring to fig. 5, when fluid measurement in the pipe 100 to be measured is required, the ultrasonic probe 2 is wired, then the surface of the sensor on the ultrasonic probe 2 is filled with silica gel, then the ultrasonic probe 2 is fixed on the outer wall of the pipe 100 to be measured by the magnet on the ultrasonic probe 2, then the pipe 100 to be measured is wound one turn by pulling the rule 122 through the cylindrical end 123, and then the cylindrical end 123 is buckled in the groove of the hook 112, at this time, the rule 122 receives a tightening force of the rule spring 121 to fix the ultrasonic probe 2 on the pipe 100 to be measured. After the measurement is completed, the cylindrical end 123 is separated from the groove of the hook 112 through the space below the hook 112, and the rule 122 is rebounded by receiving a tightening force of the rule spring 121 and returns to the housing 11. Meanwhile, by means of the scale marks on the ruler strip 122, a measurer can accurately calculate the size of the pipeline 100 to be measured, and the ultrasonic measurement accuracy is also facilitated.
As can be seen from fig. 5 and 6, the measurer can obtain the scale mark L of the tape 122 on the hook 112, and add the external parameters of the ultrasonic probe 2: the height n and half width m integrate a processing program in the computer, wherein the processing program comprises the set parameters and the operation equation, and a measurer can automatically calculate the pipe outer diameter of the pipe 100 to be measured only by inputting the scale mark L, specifically, the operation equation:
m 2 +(n+R) 2 =R 2 +L 1 2
α=arctan(m/(n+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =L/2
wherein R is the radius of the pipeline 100 to be tested, L 1 L is the distance from point A of the opening 111 to point B of the tangent point of the ruler 122 and the pipe 100 to be measured 2 In order to distance the point B from the point C on the pipe 100 to be measured, which is directly opposite to the ultrasonic probe 2, α is an angle between a straight line formed by the point B from the center of the pipe 100 to be measured and a straight line formed by the point C from the point of the ultrasonic probe 2.
Thus, the radius R, the included angle alpha and the two distances L of the pipeline 100 to be measured can be obtained by calculation according to four calculation formulas and four unknowns 1 And L 2 And the pipe outer diameter of the pipe 100 to be measured is twice the radius, namely 2R.
Example two
Referring to fig. 7, in the probe fixing apparatus of the present embodiment, the positions of the opening 111, the cylindrical end 123 and the hook 112 are changed based on the first embodiment, specifically as follows: the opening 111 is located at the top and the cylindrical head 123 and the hook 112 are located at the top of the housing 11.
As can be seen from fig. 10, the equation of the operation is changed as follows:
(N+R) 2 =R 2 +L 1 ’ 2
α’=arctan(L 1 ’/R)
(180-α’)/180=L 2 ’/(πR)
L 1 ’+L 2 ’=L’/2
wherein L' is the scale mark of the ruler strip 122 on the hook part 112, N is the overall height of the probe assembly, R is the radius of the pipeline 100 to be tested, L 1 ' is the distance L between the point A ' of the opening 111 and the point B ' of the tangent point of the tension member and the pipe 100 to be tested 2 'is the distance from the point B' to the point C on the pipeline 100 to be tested, which is opposite to the point C of the ultrasonic probe 2, and alpha 'is the included angle between the straight line formed by the point B' and the center of the pipeline 100 to be tested and the straight line formed by the point C of the ultrasonic probe 2.
The pipe outer diameter 2R of the pipe 100 to be measured can also be obtained.
In addition, in a case where the pipe diameter does not need to be measured, the positions of the opening 111, the cylindrical end 123, and the hooking portion 112 may be set at any position of the housing 11.
The probe assembly formed after the probe fixing apparatus 1 in the present embodiment is mounted on the ultrasonic probe 2 is described with reference to fig. 8 and 9, and the remainder is described with reference to the related description of the first embodiment.
Example III
Referring to fig. 3 and 4, a probe assembly according to the present embodiment is applied to a pipeline requiring measurement of internal fluid. Reference is made to fig. 5 based on the cooperation of the probe assembly and the pipe under test 100, whereby a probe assembly of the present embodiment can be fastened to the pipe under test 100.
Specifically, the probe assembly of the present embodiment includes the ultrasonic probe 2 and the probe fixing device 1 of the first embodiment, the probe fixing device 1 is fixed on the mounting surface of the ultrasonic probe 2 opposite to the surface on which the sensor is located, so that the surface of the ultrasonic probe 2 on which the sensor is located is used to be closely attached to the pipe 100 to be tested, and the probe fixing device 1 on the opposite side is used to fasten the ultrasonic probe 2 and the pipe to be tested.
Reference is made to the relevant description of embodiment one.
Example IV
Referring to fig. 8 and 9, in addition to the third embodiment, a probe assembly provided in this embodiment includes an ultrasonic probe 2 and a probe fixing device 1 in the second embodiment, where the probe fixing device 1 is fixed on the ultrasonic probe 2.
The remainder refers to the relevant description of embodiments two and three.
Example five
Referring to fig. 11, a method for measuring an outer diameter of a pipe using a probe assembly according to the third or fourth embodiment includes the steps of:
step S1, placing the surface of the sensor of the ultrasonic probe 2 on the outer wall of the pipeline 100 to be tested;
in this embodiment, the surface of the ultrasonic probe 2 on which the sensor is located is filled with silica gel, and then the ultrasonic probe 2 is fixed to a proper position on the outer wall of the pipe 100 to be measured by a magnet on the ultrasonic probe 2.
Step S2, driving the tensioning piece to bypass the pipeline 100 to be tested through the second connecting part, and movably connecting the second connecting part with the first connecting part;
in this embodiment, after the rule 122 is pulled by the cylindrical end 123 to wind around the pipe 100 to be tested for one turn, the cylindrical end 123 is snapped into the groove of the hook 112, and at this time, the rule 122 receives a tightening force of the rule spring 121 to fix the ultrasonic probe 2 on the pipe 100 to be tested.
And step S3, obtaining the pipe diameter of the pipeline 100 to be tested according to the scale marks of the tensioning piece on the first connecting part.
In this embodiment, when the ultrasonic probe 2 is secured to the pipe 100 to be measured, the scale marks of the tape 122 on the hook 112 can be read.
When the probe assembly is the third embodiment, referring to fig. 5 and 6, when the cylindrical end 123 and the hook 112 are located on two sides of the housing 11, the step S3 includes:
step S31, the scale mark L of the ruler strip 122 on the hook 112, the height n of the ultrasonic probe 2, and the width m of one half are obtained, and substituted into the following equation:
m 2 +(n+R) 2 =R 2 +L 1 2
α=arctan(m/(n+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =L/2
wherein R is the radius of the pipeline 100 to be tested, L 1 L is the distance from point A of the opening 111 to point B of the tangent point of the ruler 122 and the pipe 100 to be measured 2 In order to distance the point B to the point C on the pipeline 100 to be tested, which is just opposite to the ultrasonic probe 2, alpha is an included angle between a straight line formed by the point B to the center of the pipeline 100 to be tested and a straight line formed by the point C of the ultrasonic probe 2;
step S32, obtaining the radius R of the pipeline 100 to be tested according to the above equation, and obtaining the pipeline outer diameter 2R of the pipeline 100 to be tested.
The decimal place of the radius R is required to be reserved according to the input parameters of the measuring host, and an example is used for illustration, the scale mark L is 1265.4mm, the height n is 40mm and the width m is 15mm, and then the equation is as follows:
15 2 +(40+R) 2 =R 2 +L 1 2
α=arctan(15/(40+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =1265.4/2
the simplification is as follows:
1825+80R=L 1 2
α=arctan(15/(40+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =632.7
after solving the above equation, r= 199.9mm is obtained, that is, the pipe outer diameter of the pipe 100 to be measured is 399.8mm.
When the probe assembly is the fourth embodiment, referring to fig. 10, when the cylindrical end 123 and the hook 112 are both located at the top of the housing 11, the step S3 includes:
step S31', obtain the scale mark L' of the ruler strip 122 on the hook portion 112, and substitute the overall height N of the probe assembly into the following equation:
(N+R) 2 =R 2 +L 1 ’ 2
α’=arctan(L 1 ’/R)
(180-α’)/180=L 2 ’/(πR)
L 1 ’+L 2 ’=L’/2
wherein R is the radius of the pipeline 100 to be tested, L 1 'is the distance from point A' of the opening 111 to point B 'of the tangent point B' of the ruler 122 and the pipe 100 to be measured, L 2 'is the distance from the point B' to the point C on the pipeline 100 to be tested, which is opposite to the point C of the ultrasonic probe 2, and alpha 'is the included angle between the straight line formed by the point B' to the center of the pipeline 100 to be tested and the straight line formed by the point C of the ultrasonic probe 2;
step S32', the radius R of the pipe 100 to be measured is obtained according to the above equation, and the pipe outer diameter 2R of the pipe 100 to be measured is obtained.
Thus, it should be noted that, in this embodiment, the specific selection of each module is one specific example, and in other equivalent embodiments, a model capable of satisfying the corresponding function may be used instead.
In the description of the present invention, it should be understood that 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 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; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between 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 is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (5)
1. The probe fixing device is characterized by comprising a shell and a tensioning mechanism, wherein the tensioning mechanism is positioned in the shell, an opening, a fixing piece and a first connecting part are arranged on the shell, and the fixing piece is used for being fixedly connected with an ultrasonic probe;
the tensioning mechanism comprises a tensioning piece and a second connecting part, the tensioning piece is positioned in the shell, one end of the tensioning piece extends out of the shell through the opening and is connected with the second connecting part, the second connecting part is always positioned outside the shell, and the second connecting part is detachably connected with the first connecting part;
the tensioning piece is provided with scale marks, and when the surface of the sensor of the ultrasonic probe is clung to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side of the surface, the pipe diameter of the pipeline to be tested is obtained through the scale marks of the tensioning piece on the first connecting part;
the tensioning mechanism is a tape measure mechanism, the tensioning piece comprises a tape spring and a tape, the shell further comprises an intermediate shaft, the tape spring is positioned in the shell, one end of the tape is connected with the tape spring, the other end of the tape extends out of the shell through the opening and is connected with the second connecting part, and one end, far away from the tape, of the tape spring is fixed on the intermediate shaft and is wound on the intermediate shaft;
the opening and the second connecting part are positioned on one side of the shell, and the first connecting part is positioned on the opposite side of the shell from the second connecting part;
when the surface of the sensor of the ultrasonic probe is tightly attached to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale mark of the tensioning piece on the first connecting part and the height and the width of the ultrasonic probe;
the equation of its operation:
m 2 +(n+R) 2 =R 2 +L 1 2
α=arctan(m/(n+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =L/2
wherein L is the scale mark of the ruler strip on the first connecting part, n is the height of the ultrasonic probe, and m is one half of the ultrasonic probeR is the radius of the pipeline to be measured, L 1 For the distance from the point A of the opening to the point B of the tangent point of the ruler strip and the pipeline to be tested, L 2 The distance from the point B to the point C on the pipeline 100 to be tested, which is the positive opposite point of the ultrasonic probe, and the alpha is the included angle between the straight line formed by the point B to the center of the circle of the pipeline to be tested and the straight line formed by the point C of the ultrasonic probe;
or the opening is positioned at the top, and the first connecting part and the second connecting part are positioned at the top of the shell;
when the surface of the sensor of the ultrasonic probe is tightly attached to the pipeline to be tested and the probe fixing device is fixedly arranged on the opposite side, the pipe diameter of the pipeline to be tested is obtained through the scale mark of the tensioning piece on the first connecting part and the integral height of the probe assembly;
the equation of its operation:
(N+R) 2 =R 2 +L 1 ’ 2
α’=arctan(L 1 ’/R)
(180-α’)/180=L 2 ’/(πR)
L 1 ’+L 2 ’=L’/2
wherein L' is the scale mark of the ruler strip on the first connecting part, N is the integral height of the probe assembly, R is the radius of the pipeline to be tested, L 1 ' is the distance from the point A ' of the opening to the point B ' of the tangent point of the tensioning piece and the pipeline to be tested, L 2 The distance between the point B 'and the point C on the pipeline to be tested, which is opposite to the ultrasonic probe, is the included angle between the straight line formed by the point B' and the center of the circle of the pipeline to be tested and the straight line formed by the point C of the ultrasonic probe.
2. The probe fixing device according to claim 1, wherein the second connecting portion is a cylindrical end, the first connecting portion is an inverted hook portion, and the cylindrical end is detachably connected to the hook portion.
3. A probe fixing device according to any one of claims 1 to 2, wherein the housing is of omega type, the fixing member comprises screws, screw holes are formed in the plane parts on both sides of the housing, the screws are in threaded connection with the screw holes, and the screws are used for being fixedly connected with the ultrasonic probe.
4. A probe assembly comprising an ultrasonic probe and a probe mount according to any one of claims 1 to 3, the probe mount being secured to a mounting surface of the ultrasonic probe opposite the surface on which the sensor is located.
5. A method of measuring the outside diameter of a pipe using a probe assembly according to claim 4, comprising the steps of:
placing the surface of the sensor of the ultrasonic probe on the outer wall of the pipeline to be tested;
the tensioning piece is driven to bypass the pipeline to be tested through the second connecting part, and the second connecting part is movably connected with the first connecting part;
obtaining the pipe diameter of the pipe to be tested according to the scale mark of the tensioning piece on the first connecting part;
when the first connecting part and the second connecting part are positioned at two sides of the shell, the pipe diameter of the pipe to be measured obtained according to the scale mark of the tensioning piece on the first connecting part comprises:
the scale mark L of the tensioning piece on the first connecting part, the height n of the ultrasonic probe and the width m of one half of the ultrasonic probe are obtained and substituted into the following equation:
m 2 +(n+R) 2 =R 2 +L 1 2
α=arctan(m/(n+R))+arctan(L 1 /R)
(180-α)/180=L 2 /(πR)
L 1 +L 2 =L/2
wherein R is the radius of the pipeline to be tested, L 1 For the distance between the point A of the opening of the tightening piece and the point B of the tangency point of the tightening piece and the pipeline to be tested, L 2 For the point B to the pipeline to be testedThe distance between the ultrasonic probe and the point C is the distance between the point B and the center of the pipe to be tested and the straight line between the point C and the point C;
obtaining the radius R of the pipeline to be tested according to the equation, and obtaining the pipeline outer diameter 2R of the pipeline to be tested;
when the first connecting portion and the second connecting portion are both located at the top of the shell, obtaining the pipe diameter of the pipe to be tested according to the scale mark of the tensioning piece on the first connecting portion includes:
the scale mark L' of the tensioning piece on the first connecting part and the integral height N of the probe assembly are obtained and substituted into the following equation:
(N+R) 2 =R 2 +L 1 ’ 2
α’=arctan(L 1 ’/R)
(180-α’)/180=L 2 ’/(πR)
L 1 ’+L 2 ’=L’/2
wherein R is the radius of the pipeline to be tested, L 1 ' is the distance L from the point A ' of the opening to the point B ' of the tangent point of the tightening piece and the pipeline to be tested 2 'is the distance from the point B' to the point C on the pipeline to be tested, which is opposite to the ultrasonic probe, and alpha 'is the included angle between the straight line formed by the point B' and the center of the circle of the pipeline to be tested and the straight line formed by the point C and the point C of the ultrasonic probe;
and obtaining the radius R of the pipeline to be tested according to the equation, and obtaining the pipeline outer diameter 2R of the pipeline to be tested.
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