CN117589247A - Detachable vortex shedding flowmeter - Google Patents
Detachable vortex shedding flowmeter Download PDFInfo
- Publication number
- CN117589247A CN117589247A CN202311836294.7A CN202311836294A CN117589247A CN 117589247 A CN117589247 A CN 117589247A CN 202311836294 A CN202311836294 A CN 202311836294A CN 117589247 A CN117589247 A CN 117589247A
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- adjusting pipe
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- main body
- fluid
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- 239000012530 fluid Substances 0.000 claims abstract description 69
- 239000000523 sample Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- 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
- G01F1/05—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 using mechanical effects
- G01F1/20—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 using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—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 using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the field of measuring instruments and discloses a detachable vortex shedding flowmeter, which comprises a main body, a probe, an integral box and an adjusting pipe section; a first channel for fluid flow and a second channel communicated with the first channel are arranged in the main body; the probe comprises a measuring end and a connecting end; the integrating box is arranged on the main body and is electrically connected with the connecting end; the adjusting pipe section is coaxially arranged in the first channel in a penetrating way, a through hole is formed in the peripheral wall of the adjusting pipe section, the measuring end sequentially penetrates through the second channel and the through hole and stretches into the adjusting pipe section, and the adjusting pipe section is detachably connected with the main body; according to the vortex street flowmeter, the adjusting pipe sections with different inner diameters are detached and replaced, the speed of the fluid flowing through the adjusting pipe sections is changed under the condition that the overall flow speed of the fluid is unchanged, so that vortexes are stably generated for monitoring by the probe, further accurate measurement of low-flow-rate fluid flow is achieved, the metering range of the vortex street flowmeter can be conveniently adjusted through detachment and replacement of the adjusting pipe sections, and the measuring cost and the labor cost are reduced.
Description
Technical Field
The invention relates to the field of measuring instruments, in particular to a detachable vortex shedding flowmeter.
Background
The vortex street flowmeter is a speed type flowmeter for measuring fluid flow according to the karman vortex street theory, and is usually composed of a main pipeline and vortex street flow sensors arranged on the main pipeline, the main pipeline is connected in series in a pipeline to be measured in use, along with the development of industry, the application of the vortex street flowmeter is more and more popular, and the vortex street flowmeter plays an important role in the development of the industry.
Conventional vortex street flow meters have a fixed metering range within which they can accurately measure flow. The range is mainly determined by the linearity requirements, the signal recovery parameters and the internal speed limit. In some cases, it is necessary to accurately measure the flow rate of low-flow-rate fluid lower than the normal working range of a standard vortex shedding flowmeter, when the flow rate of low-flow-rate fluid needs to be measured, since the existing vortex shedding flowmeter is often of an integrated design structure, the working range of an installed meter cannot be changed on site, and the whole vortex shedding flowmeter needs to be replaced to perform measurement, which can definitely increase the measurement cost and labor cost.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the technical problems, the invention provides a detachable vortex shedding flowmeter which comprises a main body, a probe, an integrating box and an adjusting pipe section;
a first channel for fluid flow and a second channel communicated with the first channel are arranged in the main body;
the probe comprises a measuring end and a connecting end;
the integration box is arranged on the main body and is electrically connected with the connecting end;
the adjusting pipe section is coaxially arranged in the first channel in a penetrating mode, a through hole is formed in the peripheral wall of the adjusting pipe section, a vortex generating body is arranged in the adjusting pipe section, the measuring end sequentially penetrates through the second channel and the through hole and stretches into the adjusting pipe section, and the adjusting pipe section is detachably connected with the main body.
Preferably, a positioning clamping groove is formed in one end face, close to the fluid inflow direction, of the first channel, and a positioning protruding block which protrudes along the radial direction of the adjusting pipe section and can be embedded into the positioning clamping groove is arranged on the outer circumferential surface of the adjusting pipe section.
Preferably, the inner wall of the first channel is provided with a concave clamping groove extending along the axial direction of the first channel and penetrating through one end face close to the fluid inflow direction, and the outer wall of the adjusting pipe section is provided with a limit convex strip capable of being embedded into the concave clamping groove.
Preferably, the outer walls of the two radial ends of the adjusting pipe section are provided with limit convex strips.
Preferably, the through hole is arranged at one side of the generator, which is away from the positioning protruding block, and the through hole corresponds to the second channel.
Preferably, the main body is connected with a first mounting piece at the side where the fluid flows in, and is connected with a second mounting piece at the side where the fluid flows out, and the first mounting piece and the second mounting piece are used for connecting the main body into the fluid pipeline; the first mount is secured against the positioning tab and defines the adjustment tube segment in the first channel.
Preferably, a temperature module is provided between the body and the second mount.
Preferably, a first sealing ring is arranged between the first mounting piece and the main body, and a second sealing ring is arranged between the temperature module and the main body.
Preferably, the main body is fixedly connected with the first mounting piece, the second mounting piece and the temperature module through bolts.
Preferably, the first mounting piece and the second mounting piece are respectively provided with a fluid flow channel, and the inner diameter of the first channel is smaller than that of the fluid flow channel.
Compared with the prior art, the detachable vortex shedding flowmeter provided by the embodiment of the invention has the beneficial effects that:
the adjusting pipe section in the first channel is disassembled, the adjusting pipe sections with different inner diameters are replaced, namely, the speed of the fluid flowing through the adjusting pipe section in the main body is changed under the condition that the integral flow rate of the fluid is unchanged, when the inner diameter of the adjusting pipe section is smaller, the flow rate of the fluid in the adjusting pipe section is faster, vortex can be generated more stably so as to be monitored by a probe, the accurate measurement of the low-flow-rate fluid flow is realized, the metering range of the vortex shedding flowmeter can be conveniently adjusted by disassembling and replacing the adjusting pipe section in the first channel, the whole vortex shedding flowmeter is not required to be replaced, and the measuring cost and the labor cost are reduced.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is an internal structural view of the present invention.
In the figure: 1. a main body; 11. a first channel; 12. a second channel; 13. positioning clamping grooves; 14. a concave clamping groove;
2. a probe;
3. an integrating box;
4. adjusting the pipe section; 41. a generator; 42. positioning the protruding blocks; 43. limit raised strips; 44. a through hole;
5. a first mounting member; 51. a first seal ring; 6. a second mounting member; 61. a second seal ring; 7. a temperature module; 8. a bolt; 9. a fluid flow path.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the preferred embodiment of the present invention provides a detachable vortex shedding flowmeter comprising a main body 1, a probe 2, an integrating box 3 and an adjusting pipe section 4;
a first passage 11 for fluid flow and a second passage 12 communicating with the first passage 11 are provided in the main body 1;
the probe 2 comprises a measuring end and a connecting end, wherein the measuring end is inserted into the first channel 11 through the second channel 12 to monitor the flow rate of the fluid;
the integrating box 3 is arranged on the main body 1 and is electrically connected with the connecting end of the probe 2, so as to receive and calculate the fluid flow data monitored by the measuring end of the probe 2;
the adjusting pipe section 4 is coaxially arranged in the first channel 11 in a penetrating way, a through hole 44 is formed in the peripheral wall of the adjusting pipe section 4, a generating body 41 for generating vortex is arranged in the adjusting pipe section 4, the measuring end of the probe 2 sequentially penetrates through the second channel 12 and the through hole 44 and stretches into the adjusting pipe section 4, and the adjusting pipe section 4 is detachably connected with the main body 1.
Specifically, two ends of the main body 1 are communicated with a fluid pipeline, the fluid flows through the regulating pipe section 4 in the first channel 11 and generates vortexes under the action of the generating body 41, the vortexes exert influence on the measuring end of the probe 2, and the integrating box 3 calculates the flow of the fluid according to the number and the frequency of the vortexes monitored by the measuring end of the probe 2; where the frequency at which the vortex is generated by the generating body 41 is related to the flow rate of the fluid, when the flow rate of the fluid is too low, the generating body 41 does not generate any vortex, which is a limitation on the measuring range of the vortex shedding flowmeter. According to the vortex street flowmeter, the flow velocity of fluid in the main body 1 is adjusted by disassembling and replacing the adjusting pipe sections 4 with different inner diameters, so that the vortex can be stably generated by the generating body 41, the flow of fluid can be stably obtained by the probe 2 and the integrating box 3, and the measurable range of the vortex street flowmeter is expanded. Further, the spare adjusting tube sections 4 may be provided with a plurality of adjusting tube sections 4, and the outer diameter of each adjusting tube section 4 is matched with the inner diameter of the first channel 11, but the inner diameter of each adjusting tube section 4 may be adjusted by setting the wall thickness of the adjusting tube section 4, so as to adjust the flow velocity change of the fluid when entering the adjusting tube section 4, further, the position and structure of the generating body 41 in each adjusting tube section 4 may be set, so that each adjusting tube section 4 may be suitable for measuring more fluids and more different fluid velocity ranges.
In some embodiments, the main body 1 is provided with a positioning slot 13 at an end surface of the first channel 11 near the fluid inflow direction, and the outer circumferential surface of the adjusting pipe section 4 is provided with a positioning projection 42 protruding along the radial direction thereof and capable of being embedded in the positioning slot 13.
Specifically, the end of the adjusting tube section 4 away from the positioning protrusion 42 is inserted into the first channel 11 via the fluid inflow end of the first channel 11 until the positioning protrusion contacts the positioning slot 13, the positioning slot 13 can limit the position of the adjusting tube section 4 relative to the first channel 11, and by pressing the positioning protrusion 42 in the positioning slot 13, the problem of inaccurate measurement caused by loose offset of the position of the adjusting tube section 4 relative to the first channel 11 in the fluid flow direction when the fluid flows through the main body 1 and the adjusting tube section 4 can be avoided.
Further, in some embodiments, the inner wall of the first channel 11 is provided with a concave slot 14, the concave slot 14 extends along the axial direction of the first channel 11 and penetrates through one end of the first channel 11 near the fluid inflow direction, the outer wall of the adjusting pipe section 4 is provided with a limit protruding strip 43 corresponding to the concave slot 14, which can be embedded in the concave slot 14, wherein the limit protruding strip 43 can be provided with a plurality of limit protruding strips on the outer wall of the adjusting pipe section 4. The cooperation of concave draw-in groove 14 and spacing sand grip 43 can further restrict and adjust the pipe section 4 and rotate in first passageway 11, avoids adjusting the pipeline and because self rotation and the inaccurate problem of measurement that brings when the fluid flows through.
In some embodiments, a through hole 44 is provided in the side of the shedder 41 facing away from the positioning projection 42, the through hole 44 corresponding to the second channel 12, so that the measuring end of the probe 2 can be inserted into the adjusting tube section 4.
Specifically, when the adjusting pipe section 4 is arranged in the first channel 11, the fluid passes through the generating body 41 in the adjusting pipe section 4 to generate vortex, and the measuring end of the probe 2 can enter the adjusting pipe section 4 through the second channel 12 and the through hole 44 on the adjusting pipe section 4, so that the fluid can contact the generating body 41 in the adjusting pipe section 4 to generate vortex, and accurate measurement of fluid flow is realized; further, according to different needs, different generating bodies 41 can be arranged, and the position distance between the generating body 41 and the through hole 44 can also be arranged, so that the adjusting pipe section 4 can measure more scenes, and the measuring range of the vortex shedding flowmeter can be expanded by arranging a plurality of replaceable adjusting pipe sections 4.
In some embodiments, the main body 1 is connected with a first mounting piece 5 at the side into which the fluid flows, the main body 1 is connected with a second mounting piece 6 at the side from which the fluid flows, and the first mounting piece 5 and the second mounting piece 6 are used for connecting the main body 1 into a fluid pipeline; the first mount 5 abuts the positioning projection 42 and confines the adjustable pipe segment 4 in the first channel 11.
Specifically, the main body 1 of the vortex shedding flowmeter is connected with a fluid pipeline in series, two ends of the main body 1 are respectively connected with the fluid pipeline through a first mounting piece 5 and a second mounting piece 6, fluid in the fluid pipeline enters a first channel 11 of the main body 1 through the first mounting piece 5 and finally flows out of the fluid pipeline through the second mounting piece 6, the adjusting pipe section 4 is arranged at one end, close to the inflow end of the fluid, of the main body 1, after the adjusting pipe section 4 is arranged in the first channel 11, the first mounting piece 5 is arranged on the main body 1, the adjusting pipe section 4 is fixed in the first channel 11 through the first mounting piece 5, looseness of the adjusting pipe section 4 in the working process is avoided, stability of the adjusting pipe section 4 after replacement is kept, and accuracy of vortex shedding flowmeter measurement after the adjusting pipe section 4 is replaced is further guaranteed.
In some embodiments, a temperature module 7 is provided between the body 1 and the second mount 6. Specifically, the temperature module 7 can monitor the temperature of the fluid in the first channel 11, and after the temperature of the fluid is obtained by monitoring, the temperature module can play a role in temperature-pressure compensation for flow conversion in the integration box 3, and can also provide support for other devices needing to monitor the temperature of the fluid.
In some embodiments, a first sealing ring 51 is provided between the first mounting 5 and the main body 1, and a second sealing ring 61 is provided between the temperature module 7 and the main body 1. Specifically, the sealing ring can play a role in sealing between the first mounting piece 5 and the main body 1 and between the second mounting piece 6 and the main body 1, so that leakage of fluid is avoided; the first sealing ring 51 can also act as a pressure-regulating pipe section 4.
In some embodiments, the main body 1 is fixedly connected with the first mounting member 5, the second mounting member 6 and the temperature module 7 through bolts 8. The main body 1 is fixedly connected with the first mounting piece 5, the second mounting piece 6 and the temperature module 7 through bolts 8, and meanwhile, the main body 1 is also fixed through the clamping structure matched with the bolts 8, so that the stability of the integral structure is further improved, and the service life of the vortex shedding flowmeter is prolonged.
In some embodiments, the first mounting member 5 and the second mounting member 6 each have a fluid flow passage 9 therein, and the first passage 11 has an inner diameter smaller than the inner diameter of the fluid flow passage 9. Specifically, the inner diameter of the first channel 11 is smaller than the inner diameter of the fluid flow channel 9, and the inner diameter of the adjusting pipe section 4 is smaller than the inner diameter of the first channel 11, so that the cross-sectional area of the fluid flow becomes smaller when entering the adjusting pipe section 4, the flow velocity of the fluid becomes faster, and the generating body 41 located in the adjusting pipe section 4 can generate vortex more stably for monitoring by the probe 2.
In summary, the embodiment of the invention provides a detachable vortex shedding flowmeter, wherein a detachable adjusting pipe section 4 is arranged in a first channel 11 of a main body 1 to serve as a reducing section, the speed of fluid passing through the adjusting pipe section 4 is adjusted by detaching and replacing the adjusting pipe section 4 with different inner diameters, meanwhile, the position between a generating body 41 and a through hole 44 is also adjusted, and then the position between the generating body 41 and a probe 2 is adjusted, and the vortex shedding flowmeter is enabled to have a larger measuring range by replacing different adjusting pipe sections 4, so that more measuring requirements can be met without replacing the whole vortex shedding flowmeter.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (10)
1. A removable vortex shedding flowmeter, comprising:
a main body, wherein a first channel for fluid flow and a second channel communicated with the first channel are arranged in the main body;
the probe comprises a measuring end and a connecting end;
the integration box is arranged on the main body and is electrically connected with the connecting end; and
the adjusting pipe section is coaxially arranged in the first channel in a penetrating mode, a through hole is formed in the peripheral wall of the adjusting pipe section, a vortex generating body is arranged in the adjusting pipe section, the measuring end sequentially penetrates through the second channel and the through hole and stretches into the adjusting pipe section, and the adjusting pipe section is detachably connected with the main body.
2. The detachable vortex shedding flowmeter of claim 1, wherein the main body is provided with a positioning clamping groove at one end surface of the first channel, which is close to the fluid inflow direction, and the outer circumferential surface of the adjusting pipe section is provided with a positioning protruding block which protrudes along the radial direction and can be embedded into the positioning clamping groove.
3. The detachable vortex shedding flowmeter of claim 2, wherein the inner wall of the first channel is provided with a concave clamping groove extending along the axial direction of the inner wall and penetrating through an end face close to the inflow direction of the fluid, and the outer wall of the adjusting pipe section is provided with a limit protruding strip capable of being embedded into the concave clamping groove.
4. The detachable vortex shedding flowmeter of claim 3, wherein the outer walls of the radial two ends of the adjusting pipe section are provided with the limit protruding strips.
5. The detachable vortex shedding flowmeter of claim 3, wherein the through hole is provided on a side of the generator facing away from the positioning protrusion, and the through hole corresponds to the second channel.
6. The removable vortex shedding flowmeter of claim 2, wherein the body has a first mounting member attached to a side into which fluid flows, and a second mounting member attached to a side from which fluid flows, the first and second mounting members being configured to couple the body into a fluid conduit; the first mount abuts the positioning tab and defines the adjustment tube segment in the first channel.
7. The removable vortex shedding flowmeter of claim 6, wherein a temperature module is disposed between the body and the second mount.
8. The removable vortex shedding flowmeter of claim 7, wherein a first seal ring is disposed between the first mounting member and the main body, and a second seal ring is disposed between the temperature module and the main body.
9. The removable vortex shedding flowmeter of claim 8, wherein the body is fixedly coupled to the first mount, the second mount, and the temperature module via bolts.
10. The removable vortex shedding flowmeter of claim 6, wherein the first and second mounting members are each provided with a fluid flow passage therein, the first passage having an inner diameter that is less than an inner diameter of the fluid flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836294.7A CN117589247A (en) | 2023-12-28 | 2023-12-28 | Detachable vortex shedding flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836294.7A CN117589247A (en) | 2023-12-28 | 2023-12-28 | Detachable vortex shedding flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117589247A true CN117589247A (en) | 2024-02-23 |
Family
ID=89910124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311836294.7A Pending CN117589247A (en) | 2023-12-28 | 2023-12-28 | Detachable vortex shedding flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117589247A (en) |
-
2023
- 2023-12-28 CN CN202311836294.7A patent/CN117589247A/en active Pending
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