CN111637935B - Vortex street flowmeter - Google Patents
Vortex street flowmeter Download PDFInfo
- Publication number
- CN111637935B CN111637935B CN202010527312.3A CN202010527312A CN111637935B CN 111637935 B CN111637935 B CN 111637935B CN 202010527312 A CN202010527312 A CN 202010527312A CN 111637935 B CN111637935 B CN 111637935B
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- mounting groove
- rubber ring
- damping rubber
- main body
- rotating part
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- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 39
- 238000001816 cooling Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 22
- 238000001125 extrusion Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a vortex shedding flowmeter, which comprises a measuring pipe with a flow passage, a connecting rod arranged on the measuring pipe and a vortex shedding flow transducer arranged on the connecting rod, wherein a detection probe extending into the flow passage is arranged in the measuring pipe, a main mounting groove is formed in the wall of the flow passage, an annular vibration reduction rubber ring is arranged in the main mounting groove, an annular first mounting groove is formed in the inner peripheral wall of the vibration reduction rubber ring, a vortex generator is arranged in the first mounting groove, and an adjusting assembly for adjusting the vibration reduction grade of the vibration reduction rubber ring is arranged on the vibration reduction rubber ring. The invention has the following advantages and effects: the invention can realize vibration prevention, thereby ensuring the accuracy of detection data.
Description
Technical Field
The invention relates to the field of flow meters, in particular to a vortex shedding flow meter.
Background
The vortex street flowmeter is a volume flowmeter for measuring the volume flow of gas, steam or liquid, the volume flow of standard condition or the mass flow of industrial pipeline medium fluid, and is mainly used for measuring the flow of various mediums such as gas, liquid, steam and the like.
The vortex generator of the existing vortex flowmeter is fixedly arranged in the measuring tube, and because the medium fluid can vibrate with the wall of the measuring tube in the high-speed flowing process, and the medium fluid is impacted on the vortex generator to vibrate, the detecting probe positioned in the measuring tube is influenced by double vibration to generate measuring errors, and finally the accuracy of the detecting data is influenced.
Disclosure of Invention
The invention aims to provide a vortex shedding flowmeter which can realize vibration prevention, thereby ensuring the accuracy of detection data.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a vortex street flowmeter, includes the survey buret that has the runner, sets up in the connecting rod of survey buret and set up in the vortex street flow transducer of connecting rod, survey intraductal detection probe that extends into the runner of installing, be equipped with main mounting groove on the runner wall, be equipped with annular damping rubber circle in the main mounting groove, damping rubber circle inner peripheral wall is equipped with annular first mounting groove, be equipped with vortex generator in the first mounting groove, be equipped with the adjusting part who is used for adjusting damping rubber circle damping grade on the damping rubber circle.
Through adopting above-mentioned technical scheme, install vortex generator in first mounting groove, absorb and cushion the impact force that comes from the medium fluid to vortex generator production through the characteristic of shock attenuation rubber circle material itself to reach the purpose of antivibration, ensure the accuracy of detection data. The vibration damping grade of the vibration damping rubber ring can be adjusted according to different flow rates of medium fluid through the adjusting component, so that the vibration damping rubber ring can reach the optimal vibration damping state under different working conditions, and the practicability of the vortex shedding flowmeter is further improved.
Further provided is that: the adjusting component comprises an air inlet pipe connected with the vibration reduction rubber ring and the outside, an opening and closing valve arranged in the air inlet pipe and used for controlling the air inlet pipe, and a pressure adjusting cavity arranged inside the vibration reduction rubber ring and communicated with the air inlet pipe, wherein the pressure adjusting cavity surrounds the circle center of the vibration reduction rubber ring to form an annular shape, the pressure adjusting cavity comprises two extrusion sections and a connecting section connected with the two extrusion sections, and the two extrusion sections are respectively positioned between two side walls of the main mounting groove and two side walls of the first mounting groove.
Through adopting above-mentioned technical scheme, open the start-stop valve, advance air to pressure regulation intracavity through the intake pipe, along with the increase of pressure regulation intracavity pressure, vibration damping rubber circle also outwards takes place the inflation gradually to be fixed in first mounting groove with the better extrusion of vortex generator, realize more stable fixed mounting to the vortex generator. The hardness of the damping rubber ring with gradually increased pressure is also gradually increased, and the damping performance of the damping rubber ring with increased hardness is also gradually reduced, so that the damping grade of the damping rubber ring is adjusted, and the adjusting mode is simple and convenient, and the vortex generator can be stably fixed.
Further provided is that: the measuring tube comprises a main body part with a flow channel, a notch groove arranged on the main body part and communicated with the outside and the flow channel, and a rotating part arranged on the notch groove and provided with the flow channel, wherein the rotating part is hinged with the main body part and used for enabling the rotating part to enter or leave the notch groove, the main mounting groove is arranged on the rotating part, connecting channels are formed in two side walls of the main mounting groove, the two connecting channels extend to two side walls of the notch groove in opposite directions, a sealing section which extends into the connecting channels and abuts against the side walls of the notch groove is arranged on the damping rubber ring, a sealing channel which extends into the sealing section and is communicated with the extrusion section is arranged on the damping rubber ring, and a positioning assembly used for positioning the rotating part and located in the notch groove is arranged between the main body part and the rotating part.
Through adopting above-mentioned technical scheme, when the vortex generator takes place to block up or the impurity of adhesion is too much, realize the unblock to rotating the portion through locating component, rotate out the breach groove with the rotating portion after the unblock, just so the artificial mode of accessible washs the vortex generator in the rotating portion. And because the damping rubber ring has elasticity, the extrusion force of the damping rubber ring to the vortex generator is reduced by reducing the pressure in the pressure regulating cavity, and the vortex generator can be conveniently taken out from the first mounting groove for replacement.
The rotating part is rotated into the notch groove, the rotating part is fixed through the positioning assembly, air is introduced into the pressure adjusting cavity through the air inlet pipe, the air in the pressure adjusting cavity enters the sealing channel to drive the sealing section to tightly prop against the side wall of the notch groove, the sealing between the rotating part and the main body part is achieved, and the sealing grade can be adjusted, so that the optimal sealing effect is achieved. And when the rotating part needs to rotate out of the notch groove, the convenient separation of the rotating part and the notch groove can be realized by reducing the pressure intensity in the pressure intensity adjusting cavity, so that the operation is more convenient.
Further provided is that: the positioning assembly comprises a nut and a fixing bolt which sequentially penetrates through the main body part, the rotating part and is in threaded connection with the nut, a supporting ring used for supporting the sealing section is arranged in the sealing section, and the supporting ring is fixedly connected with the vibration reduction rubber ring.
Through adopting above-mentioned technical scheme, the cooperation between fixing bolt and the nut realizes that rotation portion lies in the fixed of breach inslot, supports the seal section through the support ring for the seal section can be better at the in-process inflation of inflation towards breach groove lateral wall, thereby realizes that seal section and breach groove between are inseparabler to support tightly, thereby reaches better sealed effect.
Further provided is that: the outer wall of the main body part is provided with a second mounting groove corresponding to the position of the detection probe, a magnet is arranged in the second mounting groove, and a magnetic attraction bolt is connected in the second mounting groove in a threaded manner.
Through adopting above-mentioned technical scheme, the setting of magnet prevents that the magnetic field from causing the interference to the test probe, further promotes the accuracy of detection data.
Further provided is that: the cooling device comprises a main body part, a cooling plate, a cooling cavity and a cooling plate, wherein the main body part is wrapped with a jacket, a clamping cavity is formed between the jacket and the main body part, the cooling plate is provided with the cooling plate along the axis of the flow passage and surrounds the circle center of the cooling plate, and the cooling plate is internally provided with the cooling cavity communicated with the clamping cavity.
Through adopting above-mentioned technical scheme, through low temperature medium, the interior low temperature medium flow of clamp chamber into cooling chamber to the medium fluid in the runner cools down, makes vortex shedding flowmeter can detect the medium fluid of high temperature, is applicable to high temperature operating mode, thereby promotes vortex shedding flowmeter's practicality. And the cooperation between cooling fin and the cooling chamber has increased the area of contact with medium fluid in the runner, can reach better cooling effect in the setting of cooperation clamp chamber.
Further provided is that: when one end face of the supporting ring, which is close to the side wall of the notch groove, is in level with the end face of the rotating part, one end face of the supporting ring, which is close to the main mounting groove, is in level with the side wall of the main mounting groove.
Through adopting above-mentioned technical scheme, this kind of setting makes the supporting ring also can support tightly to seal in breach groove lateral wall under the effect of shock attenuation rubber circle to realize multiple sealedly, reach better sealed effect, prevent to leak.
In summary, the invention has the following beneficial effects: the invention can realize vibration prevention, thereby ensuring the accuracy of detection data.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a partial cross-sectional view of an embodiment;
FIG. 3 is a schematic view of a partial structure of an embodiment;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a partial cross-sectional view of another direction of the embodiment.
In the figure: 1. a flow passage; 2. a measuring tube; 201. a main body portion; 202. a notch groove; 203. a rotating part; 3. a connecting rod; 4. vortex street flow converter; 5. a detection probe; 6. a main mounting groove; 7. damping rubber rings; 8. a first mounting groove; 9. a vortex generator; 10. an adjustment assembly; 101. an air inlet pipe; 102. opening and closing the valve; 103. an extrusion section; 104. a connection section; 11. a connection channel; 12. a sealing section; 13. sealing the channel; 14. a positioning assembly; 141. a nut; 142. a fixing bolt; 15. a support ring; 16. a second mounting groove; 17. a magnet; 18. a magnetic bolt; 19. a jacket; 20. clamping a cavity; 21. cooling sheets; 22. and a cooling cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, a vortex shedding flowmeter includes a measuring tube 2 with a flow channel 1, the measuring tube 2 includes a main body 201 with the flow channel 1, a notch 202 opened in the main body 201 and communicating the outside with the flow channel 1, and a rotating part 203 provided in the notch 202 and with the flow channel 1, the shape of the rotating part 203 is adapted to the shape of the notch 202, and the rotating part 203 is hinged with the main body 201 to allow the rotating part 203 to enter or leave the notch 202. The main body 201 is fixedly provided with a connecting rod 3, the connecting rod 3 is fixedly provided with a vortex street flow transducer 4, and the main body 201 is internally provided with a detection probe 5 extending into the flow channel 1.
The runner 1 wall of the rotating part 203 is provided with a circular main mounting groove 6 surrounding the center of the runner 1, a circular damping rubber ring 7 is arranged in the main mounting groove 6, the inner peripheral wall of the damping rubber ring 7 is provided with a circular first mounting groove 8, the first mounting groove 8 is internally provided with a vortex generator 9, and the damping rubber ring 7 is provided with an adjusting component 10 for adjusting the damping grade of the damping rubber ring 7. The adjusting assembly 10 comprises an air inlet pipe 101 fixedly arranged on the damping rubber ring 7 and communicated with the outside through a rotating part 203, an on-off valve 102 arranged on the air inlet pipe 101 and used for controlling the air inlet pipe 101, and a pressure adjusting cavity arranged inside the damping rubber ring 7 and communicated with the air inlet pipe 101. The pressure regulating cavity surrounds the center of the vibration damping rubber ring 7 to form a circular ring shape, and the on-off valve 102 is a ball valve.
The pressure adjusting cavity comprises two extrusion sections 103 and a connecting section 104 for connecting the two extrusion sections 103, wherein the two extrusion sections 103 are respectively positioned between two side walls of the main mounting groove 6 and two side walls of the first mounting groove 8. The connecting channels 11 are formed in the two side walls of the main mounting groove 6, the two connecting channels 11 extend to the two side walls of the notch groove 202 in opposite directions, the shock-absorbing rubber ring is provided with the sealing section 12 which extends into the connecting channels 11 and abuts against the side walls of the notch groove 202, the shock-absorbing rubber ring is provided with the sealing channel 13 which extends into the sealing section 12 and is communicated with the extrusion section 103, and the positioning assembly 14 used for positioning the rotating part 203 and located in the notch groove 202 is arranged between the main body part 201 and the rotating part 203.
The positioning assembly 14 comprises a nut 141, a fixing bolt 142 sequentially penetrating through the main body 201 and the rotating part 203 and in threaded connection with the nut 141, and a supporting ring 15 for supporting the sealing section 12 is arranged in the sealing section 12, wherein the supporting ring 15 is coaxially arranged with the runner 1, and the supporting ring 15 is fixedly bonded with the vibration-damping rubber ring 7. The outer wall of the main body 201 is provided with a second mounting groove 16 corresponding to the position of the detection probe 5, a magnet 17 is arranged in the second mounting groove 16, and a magnetic attraction bolt 18 for fixing the magnet 17 is connected in the second mounting groove 16 in a threaded manner.
The outer fixed parcel of main part 201 has the clamp cover 19, forms a clamp chamber 20 between clamp cover 19 and the main part 201, and runner 1 wall is provided with cooling fin 21 in an organic whole corresponding to the position of clamp cover 19, and cooling fin 21 extends along runner 1 axis and encircles and be provided with a plurality ofly around its centre of a circle, has all offered the cooling chamber 22 that communicates clamp chamber 20 in every cooling fin 21. When one end surface of the support ring 15 near the side wall of the notch groove 202 is in flat condition with the end surface of the rotating part 203, one end surface of the support ring 15 near the main mounting groove 6 is in flat condition with the side wall of the main mounting groove 6.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (5)
1. The utility model provides a vortex street flowmeter, includes survey buret (2) that have runner (1), sets up in connecting rod (3) of survey buret (2) and sets up in vortex street flow transducer (4) of connecting rod (3), install in survey buret (2) and extend into test probe (5) of runner (1), its characterized in that: the device is characterized in that a main mounting groove (6) is formed in the wall of the runner (1), an annular vibration damping rubber ring (7) is arranged in the main mounting groove (6), an annular first mounting groove (8) is formed in the inner peripheral wall of the vibration damping rubber ring (7), a vortex generator (9) is arranged in the first mounting groove (8), and an adjusting assembly (10) for adjusting the vibration damping grade of the vibration damping rubber ring (7) is arranged on the vibration damping rubber ring (7);
The adjusting assembly (10) comprises an air inlet pipe (101) connected with the vibration-damping rubber ring (7) and the outside, an opening and closing valve (102) arranged on the air inlet pipe (101) and used for controlling the air inlet pipe (101), and a pressure adjusting cavity arranged inside the vibration-damping rubber ring (7) and communicated with the air inlet pipe (101), wherein the pressure adjusting cavity surrounds the circle center of the vibration-damping rubber ring (7) to form a ring shape, the pressure adjusting cavity comprises two extrusion sections (103) and a connecting section (104) connected with the two extrusion sections (103), and the two extrusion sections (103) are respectively positioned between two side walls of the main mounting groove (6) and two side walls of the first mounting groove (8);
The measuring tube (2) comprises a main body part (201) with a flow channel (1), a notch groove (202) arranged on the main body part (201) and communicated with the outside and the flow channel (1), and a rotating part (203) arranged on the notch groove (202) and provided with the flow channel (1), wherein the rotating part (203) is hinged with the main body part (201) to enable the rotating part (203) to enter or leave the notch groove (202), a main mounting groove (6) is arranged on the rotating part (203), connecting channels (11) are formed in two side walls of the main mounting groove (6), the two connecting channels (11) extend to two side walls of the notch groove (202) in a back mode, sealing sections (12) which extend into the connecting channels (11) and are propped against the side walls of the notch groove (202) are arranged on the damping rubber ring, sealing channels (13) which extend into the sealing sections (12) and are communicated with the extruding sections (103) are arranged on the damping rubber ring, and positioning components (14) used for positioning the rotating part (203) and located in the notch groove (202) are arranged between the main body part (201) and the rotating part (203).
2. The vortex shedding flowmeter of claim 1, wherein: the positioning assembly (14) comprises a nut (141) and a fixing bolt (142) which sequentially penetrates through the main body part (201), the rotating part (203) and is in threaded connection with the nut (141), a supporting ring (15) for supporting the sealing section (12) is arranged in the sealing section (12), and the supporting ring (15) is fixedly connected with the vibration reduction rubber ring (7).
3. The vortex shedding flowmeter of claim 1, wherein: the outer wall of the main body part (201) is provided with a second mounting groove (16) at a position corresponding to the detection probe (5), a magnet (17) is arranged in the second mounting groove (16), and a magnetic attraction bolt (18) is connected with the inner thread of the second mounting groove (16).
4. The vortex shedding flowmeter of claim 1, wherein: the cooling device is characterized in that a jacket (19) is wrapped outside the main body part (201), a clamping cavity (20) is formed between the jacket (19) and the main body part (201), cooling sheets (21) are arranged on the wall of the flow channel (1), the cooling sheets (21) extend along the axis of the flow channel (1) and are arranged around the circle center of the cooling sheets in a surrounding mode, and cooling cavities (22) communicated with the clamping cavity (20) are formed in each cooling sheet (21).
5. The vortex shedding flowmeter of claim 2, wherein: when one end surface of the supporting ring (15) close to the side wall of the notch groove (202) is in level with the end surface of the rotating part (203), one end surface of the supporting ring (15) close to the main mounting groove (6) is in level with the side wall of the main mounting groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527312.3A CN111637935B (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527312.3A CN111637935B (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111637935A CN111637935A (en) | 2020-09-08 |
| CN111637935B true CN111637935B (en) | 2024-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010527312.3A Active CN111637935B (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN111637935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295670B (en) * | 2023-01-29 | 2023-10-31 | 江苏伟屹电子有限公司 | Vortex street flowmeter with composite vortex street generator convenient to install |
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| CN111637935A (en) | 2020-09-08 |
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