CN111637935A - Vortex street flowmeter - Google Patents
Vortex street flowmeter Download PDFInfo
- Publication number
- CN111637935A CN111637935A CN202010527312.3A CN202010527312A CN111637935A CN 111637935 A CN111637935 A CN 111637935A CN 202010527312 A CN202010527312 A CN 202010527312A CN 111637935 A CN111637935 A CN 111637935A
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- mounting groove
- damping rubber
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- rubber circle
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- 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 discloses a vortex shedding flowmeter which comprises a measuring pipe with a flow channel, a connecting rod arranged on the measuring pipe and a vortex shedding flow converter arranged on the connecting rod, wherein a detection probe extending into the flow channel is installed in the measuring pipe, a main installation groove is formed in the wall of the flow channel, an annular vibration damping rubber ring is arranged in the main installation groove, an annular first installation groove is formed in the inner peripheral wall of the vibration damping rubber ring, a vortex generating body is arranged in the first installation groove, and an adjusting assembly used for adjusting the vibration damping grade of the vibration damping rubber ring is arranged on the vibration damping 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 flowmeters, in particular to a vortex shedding flowmeter.
Background
The vortex shedding flowmeter is a volume flowmeter which is produced according to the Karman vortex shedding principle and is used for measuring the volume flow of gas, steam or liquid, the volume flow or mass flow under standard conditions, is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like, and is characterized by small pressure loss, wide measuring range and high precision, and is hardly influenced by parameters of fluid density, pressure, temperature, viscosity and the like when the volume flow under working conditions is measured.
The vortex generating body of the existing vortex shedding 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 impacts the vibration on the vortex generating body, the detection probe in the measuring tube is influenced by double vibration to generate a measurement error, and the accuracy of detection data is finally influenced.
Disclosure of Invention
The invention aims to provide a vortex shedding flowmeter which can realize vibration prevention so as to ensure the accuracy of detection data.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a vortex flowmeter, includes the survey buret of surveying the buret that has the runner, sets up in the connecting rod of surveying the buret and sets up in the vortex flow converter of connecting rod, install the test probe who extends into the runner in the buret, be equipped with the main mounting groove on the flow path wall, be equipped with annular damping rubber circle in the main mounting groove, damping rubber circle internal perisporium is equipped with annular first mounting groove, it takes place the body to be equipped with the vortex 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, will vortex the generating body and install in first mounting groove, absorb and cushion the impact force that comes from the medium fluid to vortex generating body production through the characteristic of yielding rubber circle material itself to reach the antivibration purpose, ensure the accuracy of detection data. The vibration reduction level of the vibration reduction rubber ring can be adjusted according to different flow rates of the medium fluid through the adjusting component, and the vibration reduction rubber ring can be ensured to reach the best vibration reduction state in different working conditions, so that the practicability of the vortex shedding flowmeter is further improved.
Further setting the following steps: the adjusting part comprises an air inlet pipe, an opening and closing valve and a pressure adjusting cavity, the air inlet pipe is used for controlling the air inlet pipe, the pressure adjusting cavity is arranged in the vibration reduction rubber ring and communicated with the air inlet pipe, 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 for connecting the two extrusion sections, and the two extrusion sections are respectively located between the two side walls of the main mounting groove and the two side walls of the first mounting groove.
Through adopting above-mentioned technical scheme, will open the closed valve, admit air to the pressure regulation intracavity through the intake pipe, along with the increase of pressure in the pressure regulation intracavity, the damping rubber circle also outwards takes place the inflation gradually to in being fixed in first mounting groove with the better extrusion of vortex emergence body, taking place the body to the vortex and realize more stable fixed mounting. And the hardness of the vibration reduction rubber ring with gradually increased pressure is gradually increased, and the vibration reduction performance of the vibration reduction rubber ring with increased hardness is gradually reduced, so that the vibration reduction grade of the vibration reduction rubber ring is adjusted, and the vortex generating body can be more stably fixed in the simple and convenient adjusting mode.
Further setting the following steps: survey buret including the main part that has the runner, set up in the external breach groove with the runner of main part and intercommunication and set up in the breach groove and have the rotation portion of runner, rotation portion and the articulated confession rotation portion that supplies of main part get into or leave the breach groove, main mounting groove set up in rotation portion, connecting channel has all been seted up to main mounting groove both sides wall, two connecting channel extends to breach groove both sides wall mutually, be equipped with on the yielding rubber circle and extend into the sealed section that connecting channel just offseted with breach groove lateral wall, be equipped with on the yielding rubber circle and extend into sealed section and with the sealed way of extrusion section intercommunication, be equipped with between main part and the rotation portion and be used for fixing a position the locating component who rotates the position in the breach inslot.
Through adopting above-mentioned technical scheme, when vortex emergence body takes place to block up or the impurity of adhesion is too much, realize the unblock to the rotating part through locating component, the breach groove is rolled out to the rotating part after will unblock, and vortex emergence body in the rotating part is washd with regard to the artificial mode of accessible like this. And because the damping rubber circle has elasticity, reduce the extrusion force of damping rubber circle to vortex emergence body through the pressure that reduces pressure and adjust the intracavity, can conveniently take out vortex emergence body from first mounting groove and change.
The rotating portion is rotated into the notch groove, the rotating portion 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 abut against and seal the side wall of the notch groove, sealing between the rotating portion and the main body portion is achieved, the sealing grade can also be adjusted, and therefore the best sealing effect is achieved. And when the rotating part needs to rotate the notch groove, the rotating part can be conveniently separated from the notch groove by reducing the pressure in the pressure adjusting cavity, so that the operation is more convenient.
Further setting the following steps: 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 support ring used for supporting the sealing section is arranged in the sealing section, and the support 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 sealed section through the supporting ring for sealed section can be better in the expanded in-process towards breach groove lateral wall inflation, thereby realize more closely supporting tightly between sealed section and the breach groove, thereby reach better sealed effect.
Further setting the following steps: the position that the main part outer wall corresponds to test probe is equipped with the second mounting groove, be equipped with magnet in the second mounting groove, second mounting groove female connection has magnetism to inhale the bolt.
Through adopting above-mentioned technical scheme, the setting up of magnet prevents that magnetic field from causing the interference to test probe, further promotes the accuracy of measuring data.
Further setting the following steps: the cooling device comprises a main body part, a plurality of cooling sheets and a cooling device, wherein a clamping cavity is formed between the clamping sleeve and the main body part, the wall of the runner is provided with the cooling sheets, the cooling sheets extend along the axis of the runner and are arranged in a surrounding mode around the circle center of the runner, and each cooling sheet is internally provided with a cooling cavity communicated with the clamping cavity.
Through adopting above-mentioned technical scheme, toward pressing from both sides intracavity portion through the low temperature medium, press from both sides intracavity low temperature medium flow and advance cooling chamber to the medium fluid to in the runner cools down, makes vortex flowmeter can detect the medium fluid of high temperature, is applicable to the high temperature operating mode, thereby promotes vortex flowmeter's practicality. And the cooperation between the cooling piece and the cooling cavity increases the contact area with the medium fluid in the flow channel, and the arrangement of the matching clamping cavity can achieve better cooling effect.
Further setting the following steps: when one end face of the support ring close to the side wall of the notch groove is level with the end face of the rotating part, one end face of the support ring close to the main mounting groove is level with the side wall of the main mounting groove.
Through adopting above-mentioned technical scheme, this kind of setting makes the support ring also can support tightly to seal in breach groove lateral wall under the effect of yielding rubber circle to realize multiple sealed, reach better sealed effect, prevent to leak.
In conclusion, 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 structural diagram of an embodiment;
FIG. 2 is a partial cross-sectional view of the embodiment;
FIG. 3 is a partial schematic structural view of an embodiment;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a partial sectional view of another embodiment in another direction.
In the figure: 1. a flow channel; 2. a measurement tube; 201. a main body portion; 202. a notch groove; 203. a rotating part; 3. a connecting rod; 4. a vortex street flow converter; 5. detecting a probe; 6. a main mounting groove; 7. a vibration damping rubber ring; 8. a first mounting groove; 9. a vortex generator; 10. an adjustment assembly; 101. an air inlet pipe; 102. opening and closing a valve; 103. an extrusion section; 104. a connecting section; 11. a connecting channel; 12. a sealing section; 13. sealing the road; 14. a positioning assembly; 141. a nut; 142. fixing the bolt; 15. a support ring; 16. a second mounting groove; 17. a magnet; 18. magnetically attracting the bolt; 19. a jacket; 20. a clamp cavity; 21. cooling tablets; 22. 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 comprises a measuring pipe 2 with a flow passage 1, wherein the measuring pipe 2 comprises a main body part 201 with the flow passage 1, a notch groove 202 arranged on the main body part 201 and communicated with the flow passage 1 from the outside, and a rotating part 203 arranged on the notch groove 202 and provided with the flow passage 1, the shape of the rotating part 203 is matched with that of the notch groove 202, and the rotating part 203 is hinged with the main body part 201 to allow the rotating part 203 to enter or leave the notch groove 202. The main body part 201 is fixedly provided with a connecting rod 3, the connecting rod 3 is fixedly provided with a vortex flow converter 4, and the main body part 201 is internally provided with a detection probe 5 extending into the flow channel 1.
Offer on the runner 1 wall of rotation portion 203 around the ring shape main mounting groove 6 in the 1 centre of a circle of runner, be equipped with annular damping rubber circle 7 in the main mounting groove 6, annular first mounting groove 8 of ring shape has been offered to damping rubber circle 7 internal perisporium, is equipped with vortex emergence body 9 in the first mounting groove 8, is equipped with the adjusting part 10 that is used for adjusting damping rubber circle 7 damping level on the damping rubber circle 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 opening and closing valve 102 installed 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 adjusting cavity is arranged around the center of the vibration damping rubber ring 7 to form a ring shape, and the opening and closing 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, and the two extrusion sections 103 are respectively positioned between two side walls of the main installation groove 6 and two side walls of the first installation groove 8. Connecting channel 11 has all been seted up to 6 both sides walls of main mounting groove, and two connecting channel 11 extend to breach groove 202 both sides walls on the back of the body, are equipped with on the yielding rubber circle to extend into connecting channel 11 and with the sealed section 12 that breach groove 202 lateral wall offseted, set up on the yielding rubber circle to extend into sealed section 12 and with the sealed way 13 of extrusion section 103 intercommunication, be equipped with between main part 201 and the rotation part 203 and be used for fixing a position the locating component 14 that rotation part 203 is located breach groove 202.
The positioning assembly 14 comprises a nut 141 and a fixing bolt 142 which sequentially penetrates through the main body part 201 and the rotating part 203 and is in threaded connection with the nut 141, a support ring 15 used for supporting the sealing section 12 is arranged in the sealing section 12, the support ring 15 is coaxially arranged with the flow channel 1, and the support ring 15 is fixedly bonded with the vibration reduction rubber ring 7. The outer wall of the main body part 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 bolt 18 for fixing the magnet 17 is connected with the inner thread of the second mounting groove 16.
The main part 201 is externally fixed with a jacket 19, a clamping cavity 20 is formed between the jacket 19 and the main part 201, cooling fins 21 are integrally arranged on the wall of the flow channel 1 corresponding to the position of the jacket 19, the cooling fins 21 extend along the axis of the flow channel 1 and are arranged in a plurality of circles around the circle center of the flow channel, and a cooling cavity 22 communicated with the clamping cavity 20 is arranged in each cooling fin 21. When an end surface of the support ring 15 adjacent to the side wall of the cutaway groove 202 is flush with the end surface of the rotating portion 203, an end surface of the support ring 15 adjacent to the main installation groove 6 is flush with the side wall of the main installation groove 6.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a vortex shedding flowmeter, including surveying buret (2) that have runner (1), set up in connecting rod (3) of surveying buret (2) and set up in vortex street flow converter (4) of connecting rod (3), install in surveying buret (2) and extend into measuring probe (5) of runner (1), its characterized in that: be equipped with on runner (1) wall main mounting groove (6), be equipped with annular damping rubber circle (7) in main mounting groove (6), damping rubber circle (7) internal perisporium is equipped with annular first mounting groove (8), be equipped with vortex emergence body (9) in first mounting groove (8), be equipped with on damping rubber circle (7) and be used for adjusting regulating damping rubber circle (7) damping level adjusting part (10).
2. The vortex shedding flowmeter of claim 1, wherein: adjusting part (10) including connect damping rubber circle (7) and external intake pipe (101), set up in intake pipe (101) and be used for controlling the open-close valve (102) of intake pipe (101) and set up in damping rubber circle (7) inside and with the pressure of intake pipe (101) intercommunication adjust the chamber, the pressure is adjusted the chamber and is encircleed the setting and form an annular around the centre of a circle in damping rubber circle (7), the pressure adjusts the chamber and includes two extrusion sections (103) and connect linkage segment (104) of two extrusion sections (103), two extrusion section (103) are located respectively between main mounting groove (6) both sides wall and first mounting groove (8) both sides wall.
3. The vortex shedding flowmeter of claim 2, wherein: survey buret (2) including main part (201) that has runner (1), set up in main part (201) and communicate external and breach groove (202) of runner (1) and set up in breach groove (202) and have rotation portion (203) of runner (1), rotation portion (203) and main part (201) are articulated to supply rotation portion (203) to get into or leave breach groove (202), main mounting groove (6) set up in rotation portion (203), connecting channel (11) have all been seted up to main mounting groove (6) both sides wall, two connecting channel (11) extend to breach groove (202) both sides wall on the back, be equipped with on the damping rubber circle and extend into connecting channel (11) and with sealed section (12) that breach groove (202) lateral wall offseted, be equipped with on the damping rubber circle and extend into sealed section (12) and with sealed way (13) that extrude section (103) and communicate, a positioning assembly (14) for positioning the rotating part (203) in the notch groove (202) is arranged between the main body part (201) and the rotating part (203).
4. The vortex shedding flowmeter of claim 3, wherein: the positioning assembly (14) comprises a nut (141) and a fixing bolt (142) which sequentially penetrates through the main body portion (201) and the rotating portion (203) and is in threaded connection with the nut (141), a support ring (15) used for supporting the sealing section (12) is arranged in the sealing section (12), and the support ring (15) is fixedly connected with the vibration reduction rubber ring (7).
5. The vortex shedding flowmeter of claim 3, wherein: the position that main part (201) outer wall corresponds to test probe (5) is equipped with second mounting groove (16), be equipped with magnet (17) in second mounting groove (16), second mounting groove (16) female connection has magnetism to inhale bolt (18).
6. The vortex shedding flowmeter of claim 3, 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), a plurality of 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 flow channel, and a cooling cavity (22) communicated with the clamping cavity (20) is arranged in each cooling sheet (21).
7. The vortex shedding flowmeter of claim 4, wherein: when one end face of the support ring (15), which is close to the side wall of the notch groove (202), is kept flat with the end face of the rotating part (203), one end face of the support ring (15), which is close to the main mounting groove (6), is kept flat with the side wall of the main mounting groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527312.3A CN111637935A (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527312.3A CN111637935A (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111637935A true CN111637935A (en) | 2020-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010527312.3A Pending CN111637935A (en) | 2020-06-11 | 2020-06-11 | Vortex street flowmeter |
Country Status (1)
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| CN (1) | CN111637935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295670A (en) * | 2023-01-29 | 2023-06-23 | 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295670A (en) * | 2023-01-29 | 2023-06-23 | 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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