CN112577588A - Sound velocity measuring device - Google Patents
Sound velocity measuring device Download PDFInfo
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- CN112577588A CN112577588A CN202011534525.5A CN202011534525A CN112577588A CN 112577588 A CN112577588 A CN 112577588A CN 202011534525 A CN202011534525 A CN 202011534525A CN 112577588 A CN112577588 A CN 112577588A
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- signal generating
- signal
- signal receiving
- receiving part
- sound
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
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- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The application provides a sound velocity measurement device, it includes: a housing having an inner cavity therein; the shell is provided with an injection port and a discharge port which are communicated with the inner cavity; a moving mechanism at least partially disposed in the interior cavity, the moving mechanism being movable within the interior cavity; a measuring mechanism including a signal generating section and a signal receiving section; one of the signal generating part and the signal receiving part is arranged between the injection port and the discharge port, so that the sound signal emitted by the signal generating part can be transmitted to the signal receiving part through the fluid to be measured; one of the signal generating part and the signal receiving part is arranged on the moving mechanism; so that the signal generating part and the signal receiving part can generate relative movement through the moving mechanism, and further the path of the sound signal propagating between the signal generating part and the signal receiving part is adjusted. The embodiment of the application provides a sound velocity measuring device, and the sound velocity of annular medium can be accurately obtained to the sound velocity measuring device, and then the accuracy of the location of the leak source of revealing the oil casing is improved.
Description
Technical Field
The present application relates to a sound velocity measurement apparatus.
Background
As is known, leakage of a shaft oil casing can cause annulus pressure, and further, the safety of oil and gas production is directly threatened. The method has the advantages of finding and positioning the leakage of the process facility as early as possible, finding out the source of the leakage, early warning the possible danger, and having very important significance for timely taking reasonable prevention and control treatment measures and preventing catastrophic consequences.
In the prior art, locating a leak point of an oil casing leak is typically based on sonic detection of the medium in the oil casing annulus. Whether the sound velocity of the annular medium can be accurately obtained is the key for determining the height of the location precision of the leak point, but the detection precision of the device based on the sound wave detection of the medium in the oil sleeve annulus in the prior art is not high, so that the location of the leak point of the oil sleeve leakage is influenced.
Therefore, it is necessary to provide a sound velocity measurement apparatus and a system thereof to solve the above problems.
Disclosure of Invention
In view of this, this application embodiment provides a sound velocity measurement device, and it can accurately acquire the sound velocity of annular medium, and then improves the accuracy of the location to the leak source that oil casing leaked.
In order to achieve the purpose, the application provides the following technical scheme: a sound speed measurement apparatus comprising: a housing having an inner cavity therein; the shell is provided with an injection port and a discharge port which are communicated with the inner cavity; the injection port and the discharge port are respectively used for injecting and discharging fluid to be measured into the inner cavity; a movement mechanism disposed at least partially within the lumen, the movement mechanism being movable within the lumen; a measuring mechanism including a signal generating section and a signal receiving section; one of the signal generating part and the signal receiving part is arranged between the injection port and the discharge port, so that the sound signal emitted by the signal generating part can be transmitted to the signal receiving part through the fluid to be measured; one of the signal generating part and the signal receiving part is arranged on the moving mechanism; so that the signal generating part and the signal receiving part can move relatively through the moving mechanism, and the path of the sound signal between the signal generating part and the signal receiving part is further adjusted.
As a preferred embodiment, the moving mechanism comprises a rod body partially penetrating the inner cavity and a slide block arranged in the inner cavity; one of the signal generating part and the signal receiving part is arranged on the sliding block, and the other one is arranged on the shell; the rod body is used for driving the sliding block to move along the axial direction, so that one of the signal generating part and the signal receiving part can move relative to the other one along the axial direction.
As a preferred embodiment, the housing includes a top cover and a sidewall extending downwardly from an outer periphery of the top cover; one of the signal generating part and the signal receiving part is arranged on the sliding block, and the other one is arranged on the top cover; an annular gap is formed between the sliding block and the side wall.
As a preferred embodiment, the housing further comprises a bottom cover disposed opposite the top cover; the top cover, the bottom cover and the side wall enclose the inner cavity; one of the injection port and the discharge port is arranged on the top cover, and the other is arranged on the bottom cover, so that when the fluid to be detected is injected into the inner cavity through the injection port until the fluid to be detected flows out of the discharge port, the inner cavity can be filled with the fluid to be detected.
As a preferred embodiment, the method further comprises: the screw rod is rotatably arranged on the shell, and one end of the screw rod is in threaded connection with the rod body; the other end of the screw is provided with an operating part; the operating part is operable to drive the screw rod to rotate; the shell is also provided with a limiting part for limiting the operation part; the limiting part is used for limiting the operation part to move along the axial direction; so that the rod body can move in the axial direction when the screw rod rotates.
In a preferred embodiment, the housing is provided with a first through hole; the rod body part is arranged in the first through hole in a sealing and penetrating mode; a threaded hole is formed in the rod body; one end of the screw rod is in threaded connection with the threaded hole.
As a preferred embodiment, a first channel is arranged on the sliding block; the first channel is used for embedding a lead connected with the measuring mechanism; a second channel which is opened outwards is arranged on the rod body; the first channel is communicated with the second channel so that the lead can be connected with external equipment.
As a preferred embodiment, a first accommodating cavity is arranged on the sliding block; the first accommodating cavity is used for accommodating one of the signal generating part and the signal receiving part; a first elastic piece is arranged in the first accommodating cavity; the first elastic piece is used for applying elastic force to one of the signal generating part and the signal receiving part so that the signal generating part and the signal receiving part can be abutted against the inner wall of the first accommodating cavity.
As a preferred embodiment, a graduated scale is arranged on the rod body; the graduated scale is used for measuring the distance between the bottom surface of the top cover and the top surface of the sliding block.
As a preferred embodiment, the method further comprises: and the heating device is arranged on the shell and used for heating the fluid to be detected.
By means of the technical scheme, the sound velocity measuring device provided by the embodiment of the application is provided with a shell, a moving mechanism and a measuring mechanism; the signal generating part and the signal receiving part can move relatively through the movement of the moving mechanism in the inner cavity during measurement, and the path of the sound signal transmitted between the signal generating part and the signal receiving part is adjusted to be a target path L; thus, the path of the sound signal propagating between the signal generating part and the signal receiving part can be accurately limited, and the system error in sound velocity measurement can be reduced. Furthermore, one of the signal generating part and the signal receiving part is arranged between the injection port and the discharge port, so that when the inner cavity is filled with the fluid to be measured, the sound signal emitted by the signal generating part can be transmitted to the signal receiving part through the fluid to be measured, and the sound path of the sound signal transmitted in the fluid to be measured is the distance between the bottom surface of the top cover and the top surface of the sliding block. Therefore, the speed of sound propagation in the fluid to be measured can be accurately obtained according to the distance between the bottom surface of the top cover and the top surface of the sliding block and the time difference between the sound signal received by the signal receiving part and the sound signal sent by the signal generating part. And then guarantee that sound signal furtherly, the filling opening of this application can link to each other with the well head annular space, and then makes the medium in the well head annular space can inject into the inner chamber through the filling opening, so realize on-line measuring, convenient operation. Therefore, this application embodiment provides a sound velocity measuring device, and it can accurately acquire the sound velocity of annular space medium, and then improves the accuracy to the location of the leak source that the oil casing leaked.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for assisting the understanding of the present application, and are not particularly limited to the shapes, the proportional sizes, and the like of the respective members in the present application. Those skilled in the art, having the benefit of the teachings of this application, may select various possible shapes and proportional sizes to implement the present application, depending on the particular situation. In the drawings:
fig. 1 is an overall assembly view of a sound velocity measurement apparatus according to an embodiment of the present application;
FIG. 2 is an isometric view of a sound velocity measurement device according to an embodiment of the present application;
FIG. 3 is a top view of a sound velocity measurement apparatus according to an embodiment of the present application;
FIG. 4 is a sectional view A-A of FIG. 3;
fig. 5 is a sectional view taken along line B-B in fig. 3.
Description of reference numerals:
11. a housing; 12. a top cover; 13. a bottom cover; 14. an inner cavity; 15. a slider; 17. a rod body; 19. a guide bar; 21. a signal generating section; 23. a pipe body; 25. a high pressure line; 27. a first sealing cover; 28. a second sealing cover; 29. a signal receiving unit; 31. an annular gap; 33. a screw; 35. an operation section; 39. a second protrusion; 41. a third protrusion; 43. a first through hole; 45. a second through hole; 47. a third through hole; 49. a fourth through hole; 51. a fifth through hole; 53. a sixth through hole; 55. a threaded hole; 57. a first channel; 59. a second channel; 61. a wire; 63. a first accommodating cavity; 65. a second accommodating cavity; 67. a first elastic member; 69. a second elastic member; 71. a heating device; 73. a first high pressure needle valve; 75. a second high pressure needle valve; 77. a pressure transmitter; 79. a temperature transmitter; 81. a second three-way connector; 83. a first three-way connector; 85. and (4) bending the pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1 to 5, a sound velocity measurement apparatus provided in the present embodiment includes: a housing 11 having an inner cavity 14 disposed therein; the shell 11 is provided with an injection port and a discharge port which are communicated with the inner cavity 14; the injection port and the discharge port are respectively used for injecting and discharging fluid to be measured into the inner cavity 14; a movement mechanism disposed at least partially within the lumen 14, the movement mechanism being movable within the lumen 14; a measuring mechanism including a signal generating section 21 and a signal receiving section 29; one of the signal generating part 21 and the signal receiving part 29 is arranged between the injection port and the discharge port, so that the sound signal emitted by the signal generating part 21 can be transmitted to the signal receiving part 29 through the fluid to be measured; one of the signal generating section 21 and the signal receiving section 29 is provided on the moving mechanism; so that the signal generating unit 21 and the signal receiving unit 29 can be relatively moved by the moving mechanism, thereby adjusting the path of the sound signal traveling between the signal generating unit 21 and the signal receiving unit 29.
In use, first, a target path L for the sound signal to travel between the signal generating unit 21 and the signal receiving unit 29 is set. Then, the moving mechanism is moved in the inner cavity 14 according to the target path, so that the signal generating part 21 and the signal receiving part 29 can move relatively, and the path of the sound signal propagating between the signal generating part 21 and the signal receiving part 29 is adjusted to be the target path L, specifically, in the present embodiment, the distance between the bottom surface of the top cover 12 and the top surface of the slider 15 is the target path L. The fluid to be measured is then injected into the internal cavity 14 through the injection port until the fluid to be measured is discharged from the discharge port, so that the internal cavity 14 can be filled with the fluid to be measured. Since one of the signal generating section 21 and the signal receiving section 29 is disposed between the inlet and the outlet, one of the signal generating section 21 and the signal receiving section 29 is immersed in the fluid to be measured, and the acoustic signal emitted from the signal generating section 21 can be propagated to the signal receiving section 29 through the fluid to be measured. Then, the signal generating part 21 emits a sound signal, and the signal receiving part 29 receives the sound signal; and the time difference T between the sound signal and the sound signal emitted from the signal generating section 21 is received by the oscilloscope reading signal receiving section 29. And finally, acquiring the speed V of sound propagating in the fluid to be measured according to the target distance L and the time difference T. Specifically, V ═ L/T.
As can be seen from the above solutions, the sound velocity measurement apparatus according to the embodiment of the present application includes a housing 11, a moving mechanism, and a measurement mechanism; the signal generating part 21 and the signal receiving part 29 can move relatively by the movement of the moving mechanism in the inner cavity 14 during measurement, and the path of the sound signal propagating between the signal generating part 21 and the signal receiving part 29 is adjusted to be a target path L; this makes it possible to accurately define the path of the acoustic signal traveling between the signal generating unit 21 and the signal receiving unit 29, and to reduce the systematic error in the sound velocity measurement. Further, one of the signal generating portion 21 and the signal receiving portion 29 is disposed between the inlet and the outlet, so that when the fluid to be measured fills the inner cavity 14, the sound signal generated by the signal generating portion 21 can be transmitted to the signal receiving portion 29 through the fluid to be measured, and the sound path of the sound signal transmitted in the fluid to be measured is the distance between the bottom surface of the top cover 12 and the top surface of the slider 15. The speed of sound propagation in the fluid to be measured can be accurately obtained according to the distance between the bottom surface of the top cover 12 and the top surface of the slider 15 and the time difference between the sound signal received by the signal receiving part 29 and the sound signal emitted by the signal generating part 21. Further, the filling opening of this application can link to each other with the well head annular space, and then makes the medium in the well head annular space can pour into inner chamber 14 into through the filling opening, so realize on-line measuring, convenient operation.
As shown in fig. 1, in the present embodiment, the housing 11 has a hollow structure as a whole. The hollow portion forms an internal cavity 14. Specifically, as shown in fig. 4, for example, the housing 11 includes a top cover 12 and a bottom cover 13 disposed opposite to each other, and side walls extending downward from the outer periphery of the top cover 12 to the bottom cover 13. The top cover 12, the bottom cover 13 and the side walls enclose an inner cavity 14. Further, the housing 11 is provided with an inlet and an outlet communicating with the inner chamber 14. The inlet and outlet ports are used to inject and discharge the fluid to be measured into the internal chamber 14, respectively. Specifically, in the present embodiment, one of the inlet and the outlet is provided on the top cover 12, and the other is provided on the bottom cover 13. For example, as shown in fig. 4, the inlet is provided on the top cover 12, and the outlet is provided on the bottom cover 13. So that the fluid to be measured can fill the inner cavity 14 when the fluid to be measured is injected into the inner cavity 14 through the injection port until the fluid to be measured flows out from the discharge port. Of course, in other embodiments, the discharge port may be provided in the top cover 12 and the injection port may be provided in the bottom cover 13. Similarly, when the fluid to be measured is injected into the inner cavity 14 through the injection port until the fluid to be measured flows out from the discharge port, the fluid to be measured can fill the inner cavity 14.
As shown in fig. 5, the top cover 12 is further provided with a second through hole 45 extending in the vertical direction. The second through hole 45 communicates with the inner chamber 14. The first three-way connector 83 is connected to the upper end of the second through hole 45. As shown in fig. 1, the first high-pressure needle valve 73 is connected to the first three-way connector 83. The inlet of the first high pressure needle valve 73 forms an injection port. The first three-way connector 83 is also connected to a temperature transmitter 79. The temperature transmitter 79 is used to measure the temperature of the fluid to be measured in the interior chamber 14. As shown in fig. 4 and 5, the bottom cover 13 is provided with a third through hole 47 extending in the vertical direction. The third through hole 47 communicates with the inner chamber 14. As shown in fig. 2, a bend 85 is connected to a lower end of the third through hole 47. The end of the elbow 85 away from the bottom cover 13 is connected to a high pressure line 25. As shown in fig. 1, 2 and 3, a second three-way connector 81 is connected to the end of the high-pressure line 25 remote from the elbow 85. The second high-pressure needle valve 75 is connected to the second three-way connector 81. The inlet of the second high pressure needle valve 75 forms the discharge port. The second three-way connector 81 is also connected to a pressure transmitter 77. The pressure transducer 77 is used to measure the pressure of the fluid to be measured in the interior chamber 14.
In this embodiment, the moving mechanism is at least partially disposed within the interior cavity 14. The moving mechanism is capable of moving within the interior chamber 14. Specifically, the moving mechanism includes a rod body 17 partially penetrating the inner cavity 14 and a slider 15 disposed in the inner cavity 14. The rod 17 is used to drive the slide block 15 to move axially. More specifically, the housing 11 is provided with a first through hole 43. The rod 17 is sealingly inserted through the first through hole 43. For example, as shown in fig. 4, the top cover 12 is provided with a first through hole 43 extending in the vertical direction. The first through hole 43 communicates with the inner chamber 14. The upper end of the rod body 17 is inserted into the first through hole 43. A dynamic seal is provided between the rod body 17 and the inner wall of the first through hole 43, so that the gap between the rod body 17 and the first through hole 43 can be dynamically sealed by the dynamic seal. The dynamic seal may be a seal ring, for example. Of course, the dynamic seal is not limited to be a sealing ring, and may be other materials, such as a sealing filler, which is not specified in this application.
Further, the slider 15 is fixedly connected to the rod 17, so that the slider 15 is driven to move when the rod 17 moves in the axial direction. The fixed connection mode can be screw connection, bolt connection, welding, integral forming and the like. Specifically, for example, as shown in fig. 4, the slider 15 is provided with a fourth through hole 49 extending in the vertical direction. The rod 17 is fixedly inserted into the fourth through hole 49.
Further, the bottom cover 13 is provided with a fifth through hole 51 extending in the vertical direction. The fifth through hole 51 communicates with the inner chamber 14. The lower end of the rod body 17 is sealingly inserted into the fifth through hole 51. A dynamic seal is arranged between the rod body 17 and the inner wall of the fifth through hole 51, so that the gap between the rod body 17 and the fifth through hole 51 can be dynamically sealed through the dynamic seal. The dynamic seal may be a seal ring, for example. Of course, the dynamic seal is not limited to be a sealing ring, and may be other materials, such as a sealing filler, which is not specified in this application.
Further, the sound velocity measurement apparatus according to the embodiment of the present application further includes: a screw 33 rotatably provided on the housing 11. One end of the screw 33 is screwed to the rod body 17. The other end of the screw 33 is provided with an operation portion 35. For example, as shown in fig. 4, the top cover 12 is provided with a screw 33. The lower end of the screw 33 is in threaded connection with the upper end of the rod body 17. The outer wall of the upper end of the screw 33 is provided with a first protrusion protruding outward in the radial direction. The first projection forms an operating portion 35. Further, the operating portion 35 is operable to rotate the screw 33. That is, the screw 33 can be rotated by rotating the operating portion 35.
Further, the housing 11 is provided with a stopper for stopping the operation unit 35. The limiting part is used for limiting the operation part 35 to move along the axial direction; so that the rod body 17 can move in the axial direction when the screw 33 rotates. For example, as shown in fig. 4, a hollow tube 23 is connected to the upper surface of the top cover 12. The screw 33 is inserted into the tube 23. The limiting portions are a second protrusion 39 and a third protrusion 41 that are axially spaced from each other and extend inward from the inner wall of the tube 23. For example, as shown in fig. 4, the second protrusion 39 is located below the third protrusion 41. The first projection is located between the second projection 39 and the third projection 41. The second projection 39 has an upward first stop surface. The first protrusion has a downward second stop surface. The first stop surface is abutted against the second stop surface to limit the downward movement of the second stop surface. The third protrusion 41 has a downward third stop surface. The first projection has an upward fourth stop surface. The third stop surface is abutted against the fourth stop surface to limit the upward movement of the fourth stop surface. Thus, when the first protrusion is rotated, the first protrusion can only drive the screw 33 to rotate along the circumferential direction, but cannot move along the axial direction. Since the lower end of the screw 33 is threadedly connected to the upper end of the rod 17, the screw 33 can move the rod 17 in the axial direction when the screw 33 rotates and cannot move in the axial direction.
Further, a threaded hole 55 is provided in the rod body 17. As shown in fig. 4, for example, a threaded hole 55 is provided in the upper end of the rod body 17. The screw hole 55 is opened upward. Further, one end of the screw 33 is screwed with the screw hole 55. For example, as shown in fig. 4, the screw 33 is inserted into the screw hole 55 and screwed into the screw hole 55.
Further, a graduated scale is arranged on the rod body 17. The scale is used to measure the distance between the bottom surface of the top cover 12 and the top surface of the slide 15. Specifically, as shown in fig. 4, for example, the bottom surface of the top cover 12 faces the top surface of the slider 15. And a detection space is formed between the bottom surface of the top cover 12 and the top surface of the slider 15. The outer wall of the upper end of the rod body 17 is provided with a graduated scale. The rod 17 passes through the bottom surface of the top cover 12 and the top surface of the slider 15. So that the scale can measure the distance between the bottom surface of the top cover 12 and the top surface of the slider 15.
In the present embodiment, the measurement means includes a signal generation unit 21 and a signal reception unit 29. The signal generating section 21 is adapted to be connected to a signal generator to be able to emit an acoustic signal. The signal receiving section 29 is connected to an oscilloscope so as to be able to receive an audio signal. Further, one of the signal generating portion 21 and the signal receiving portion 29 is disposed between the inlet and the outlet, so that the sound signal emitted from the signal generating portion 21 can be transmitted to the signal receiving portion 29 through the fluid to be measured. Specifically, for example, the signal generating portion 21 is provided between the inlet and the outlet, so that when the fluid to be measured fills the inner chamber 14, the sound signal emitted from the signal generating portion 21 can propagate in the fluid to be measured in the inner chamber 14. Further, the sound signal received by the signal receiving section 29 is from the fluid to be measured. That is, by disposing the signal generating section 21 between the inlet and the outlet, the acoustic signal is forced to propagate through the fluid to be measured. It is needless to say that the signal generating section 21 is not limited to be provided between the inlet and the outlet, and the signal receiving section 29 may be provided between the inlet and the outlet. Further, the measuring mechanism is an ultrasonic transducer.
Further, one of the signal generating section 21 and the signal receiving section 29 is provided on the moving mechanism; so that the signal generating section 21 and the signal receiving section 29 can be relatively moved by the moving mechanism, thereby adjusting the path of the sound signal propagating between the signal generating section 21 and the signal receiving section 29. Specifically, when the signal generating portion 21 is disposed between the inlet and the outlet, the signal generating portion 21 is disposed on the moving mechanism, so that the moving mechanism can drive the signal generating portion 21 to move in the inner cavity 14. When the signal receiving portion 29 is disposed between the inlet and the outlet, the signal receiving portion 29 is disposed on the moving mechanism, so that the moving mechanism can move the signal receiving portion 29 in the inner cavity 14.
In one embodiment, one of the signal generating portion 21 and the signal receiving portion 29 is disposed on the slider 15, and the other is disposed on the housing 11. Specifically, one of the signal generating section 21 and the signal receiving section 29 is provided on the slider 15, and the other is provided on the top cover 12. That is, the signal generating section 21 is provided on the slider 15, and the signal receiving section 29 is provided on the top cover 12. Alternatively, the signal receiving section 29 is provided on the slider 15 and the signal generating section 21 is provided on the top cover 12. No provision is made for this application.
Further, since one of the signal generating section 21 and the signal receiving section 29 is disposed on the slider 15 and the other is disposed on the top cover 12, the sound path of the sound signal generated by the signal generating section 21 when the sound signal propagates to the signal receiving section 29 is the top surface of the slider 15 and the bottom surface of the top cover 12. And then the sound path can be obtained through the graduated scale on the rod body 17.
Further, the rod 17 is used for driving the slider 15 to move in the axial direction, so that one of the signal generating portion 21 and the signal receiving portion 29 can move in the axial direction relative to the other. For example, when the signal generating portion 21 is disposed on the slider 15 and the signal receiving portion 29 is disposed on the top cover 12, the rod 17 is used to drive the slider 15 to move along the axial direction, so that the signal generating portion 21 can move along the axial direction. When the signal receiving portion 29 is disposed on the slider 15 and the signal generating portion 21 is disposed on the top cover 12, the rod 17 is used to drive the slider 15 to move along the axial direction, so that the signal receiving portion 29 can move along the axial direction.
Further, since the rod 17 is used for driving the slider 15 to move axially, so that one of the signal generating portion 21 and the signal receiving portion 29 can move axially relative to the other, the rod 17 can drive the slider 15 to move axially to adjust the distance between the top surface of the slider 15 and the bottom surface of the top cover 12, and further adjust the path of the sound signal transmitted between the signal generating portion 21 and the signal receiving portion 29, that is, adjust the sound path of the sound signal emitted by the signal generating portion 21 when the sound signal is transmitted to the signal receiving portion 29. Therefore, the distance between the top surface of the sliding block 15 and the bottom surface of the top cover 12 can be adjusted before the test is started, so that the sound path is calibrated, the system error is eliminated, and the accuracy of sound velocity measurement is improved.
Further, an annular gap 31 is formed between the slider 15 and the side wall. The annular gap 31 can delay the sound wave outside the housing 11 from propagating through the housing 11 into the detection space, and on the other hand, delay the sound signal emitted by the signal generator from propagating through the sidewall of the housing 11, thereby forcing the sound signal emitted by the signal generator to propagate through the fluid to be detected. Thus, the signal receiver can obtain clean and low-noise sound wave signals.
Further, the slider 15 is provided with a first channel 57. The first channel 57 is intended for the insertion of a wire 61 for connection to a measuring mechanism; the rod body 17 is provided with a second passage 59 opened outwardly. The first channel 57 is in communication with the second channel 59 to allow the wires 61 to be connected to external devices. Therefore, the first channel 57 and the second channel 59 can prevent the wire 61 from contacting the fluid to be tested, and the fluid to be tested can prevent the wire 61 from being damaged.
Further, the slider 15 is provided with a first accommodation chamber 63. The first receiving chamber 63 is configured to receive one of the signal generating unit 21 and the signal receiving unit 29. For example, the first receiving chamber 63 is used to receive the signal generating part 21. Of course, the first housing chamber 63 is not limited to housing the signal generator 21, and may be configured to house the signal receiver 29, which is not limited in this application. Specifically, as shown in fig. 4, the first accommodation chamber 63 is open downward. Further, a first elastic member 67 is disposed in the first accommodating chamber 63. The first elastic member 67 is used for applying an elastic force to one of the signal generating portion 21 and the signal receiving portion 29, so that the one of the signal generating portion 21 and the signal receiving portion 29 can be abutted against the inner wall of the first accommodating cavity 63. So that one of the signal generating part 21 and the signal receiving part 29 can be closely attached to the wall surface of the first receiving cavity 63 by the first elastic member 67. Further, a high-temperature-resistant coupling agent is filled between one of the signal generating portion 21 and the signal receiving portion 29 and the wall surface of the first accommodating cavity 63. Further, a first sealing cover 27 is disposed on the first accommodating chamber 63. The first seal cover 27 is bolted to the slide 15. Of course, the first sealing cover 27 and the sliding block 15 are not limited to be connected by bolts, but may be connected by other connecting members, such as screws, and this application does not intend to limit the present invention. Thus, the first seal cap 27 can serve to fix one of the signal generating section 21 and the signal receiving section 29.
Further, a second accommodating cavity 65 is arranged on the top cover 12. The second receiving chamber 65 is for receiving the other of the signal generating section 21 and the signal receiving section 29. The second housing chamber 65 is for housing the signal receiving part 29, for example, when the first housing chamber 63 is for housing the signal generating part 21. Specifically, as shown in fig. 4, the second accommodation chamber 65 is opened upward. Further, a second elastic member 69 is disposed in the second accommodating chamber 65. The second elastic member 69 is used for applying an elastic force to the other of the signal generating part 21 and the signal receiving part 29 so that the other of the signal generating part 21 and the signal receiving part 29 can be abutted against the inner wall of the second accommodating cavity 65. So that the other of the signal generating part 21 and the signal receiving part 29 can be closely attached to the wall surface of the second receiving cavity 65 through the second elastic member 69. Furthermore, a high-temperature-resistant coupling agent is filled between the other of the signal generating part 21 and the signal receiving part 29 and the wall surface of the second accommodating cavity 65. Further, a second sealing cover 28 is disposed on the second accommodating chamber 65. The second seal cap 28 is bolted to the top cap 12. Of course, the second sealing cover 28 and the top cover 12 are not limited to be connected by bolts, but may be connected by other connecting members, such as screws, and this application does not intend to limit the present invention. The second seal cover 28 thus functions to fix the other of the signal generating section 21 and the signal receiving section 29.
Further, guide rods 19 are fixedly connected to the top cover 12 and the bottom cover 13. The guide rod 19 is arranged parallel to the rod body 17. The slider 15 is provided with a sixth through hole 53 through which the guide rod 19 is slidably inserted.
Further, the sound velocity measurement apparatus according to the embodiment of the present application further includes: and a heating device 71 arranged on the housing 11, wherein the heating device 71 is used for heating the fluid to be measured. For example, as shown in fig. 4, the heating device 71 is enclosed on the side wall of the housing 11. Further, the heating device 71 may be a heating wire, for example. Of course, the heating device 71 is not limited to a heating wire, but may be other heating devices, such as a heating pad, for which the present application is not limited.
It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego the subject matter and should not be construed as an admission that the applicant does not consider such subject matter to be part of the disclosed subject matter.
Claims (10)
1. A sound speed measurement device characterized by comprising:
a housing having an inner cavity therein; the shell is provided with an injection port and a discharge port which are communicated with the inner cavity; the injection port and the discharge port are respectively used for injecting and discharging fluid to be measured into the inner cavity;
a movement mechanism disposed at least partially within the lumen, the movement mechanism being movable within the lumen;
a measuring mechanism including a signal generating section and a signal receiving section; one of the signal generating part and the signal receiving part is arranged between the injection port and the discharge port, so that the sound signal emitted by the signal generating part can be transmitted to the signal receiving part through the fluid to be measured; one of the signal generating part and the signal receiving part is arranged on the moving mechanism; so that the signal generating part and the signal receiving part can move relatively through the moving mechanism, and the path of the sound signal between the signal generating part and the signal receiving part is further adjusted.
2. The sound speed measurement device according to claim 1, wherein the moving mechanism includes a rod body partially penetrating the inner cavity and a slider disposed in the inner cavity; one of the signal generating part and the signal receiving part is arranged on the sliding block, and the other one is arranged on the shell; the rod body is used for driving the sliding block to move along the axial direction, so that one of the signal generating part and the signal receiving part can move relative to the other one along the axial direction.
3. The sound speed measurement device according to claim 2, wherein the housing includes a top cover and a side wall extending downward from an outer periphery of the top cover; one of the signal generating part and the signal receiving part is arranged on the sliding block, and the other one is arranged on the top cover; an annular gap is formed between the sliding block and the side wall.
4. The sound speed measurement device according to claim 3, wherein the housing further includes a bottom cover disposed opposite the top cover; the top cover, the bottom cover and the side wall enclose the inner cavity; one of the injection port and the discharge port is arranged on the top cover, and the other is arranged on the bottom cover, so that when the fluid to be detected is injected into the inner cavity through the injection port until the fluid to be detected flows out of the discharge port, the inner cavity can be filled with the fluid to be detected.
5. The sound speed measurement device according to claim 2, characterized by further comprising: the screw rod is rotatably arranged on the shell, and one end of the screw rod is in threaded connection with the rod body; the other end of the screw is provided with an operating part; the operating part is operable to drive the screw rod to rotate; the shell is also provided with a limiting part for limiting the operation part; the limiting part is used for limiting the operation part to move along the axial direction; so that the rod body can move in the axial direction when the screw rod rotates.
6. The sound speed measurement device according to claim 5, wherein the housing is provided with a first through hole; the rod body is hermetically arranged in the first through hole in a penetrating way; a threaded hole is formed in the rod body; one end of the screw rod is in threaded connection with the threaded hole.
7. The sound speed measurement device according to claim 2, wherein a first passage is provided on the slider; the first channel is used for embedding a lead connected with the measuring mechanism; a second channel which is opened outwards is arranged on the rod body; the first channel is communicated with the second channel so that the lead can be connected with external equipment.
8. The sound velocity measurement device according to claim 2, wherein a first housing chamber is provided on the slider; the first accommodating cavity is used for accommodating one of the signal generating part and the signal receiving part; a first elastic piece is arranged in the first accommodating cavity; the first elastic piece is used for applying elastic force to one of the signal generating part and the signal receiving part so that the signal generating part and the signal receiving part can be abutted against the inner wall of the first accommodating cavity.
9. The sound speed measurement device according to claim 3, wherein a scale is provided on the rod body; the graduated scale is used for measuring the distance between the bottom surface of the top cover and the top surface of the sliding block.
10. The sound speed measurement device according to claim 1, characterized by further comprising: and the heating device is arranged on the shell and used for heating the fluid to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534525.5A CN112577588A (en) | 2020-12-23 | 2020-12-23 | Sound velocity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534525.5A CN112577588A (en) | 2020-12-23 | 2020-12-23 | Sound velocity measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN112577588A true CN112577588A (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011534525.5A Pending CN112577588A (en) | 2020-12-23 | 2020-12-23 | Sound velocity measuring device |
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| CN (1) | CN112577588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086718A (en) * | 2022-11-08 | 2023-05-09 | 中国石油天然气集团有限公司 | Oil and gas well casing leakage point detection equipment, system, detection method and application |
-
2020
- 2020-12-23 CN CN202011534525.5A patent/CN112577588A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086718A (en) * | 2022-11-08 | 2023-05-09 | 中国石油天然气集团有限公司 | Oil and gas well casing leakage point detection equipment, system, detection method and application |
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