CN209857974U

CN209857974U - Vortex street flowmeter

Info

Publication number: CN209857974U
Application number: CN201920996307.XU
Authority: CN
Inventors: 刘仁宏
Original assignee: Shanghai Aiyiaidi Technology Co Ltd Jiangsu Branch; Shanghai Zhangang Technology Group Jiangsu Co Ltd
Current assignee: Shanghai Aiyiaidi Technology Co Ltd Jiangsu Branch; Shanghai Zhangang Technology Group Jiangsu Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2019-12-27
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a vortex flowmeter, including the table body, the ring flange is all installed to the both sides of the table body, the inboard equipartition of ring flange has the flange hole, one side in flange hole is provided with the seal groove, table pole base is installed to the upper end of the table body, locking bolt is installed to the upper end of table pole base, linking bridge is installed to locking bolt's upper end, the instrument is installed to linking bridge's upper end, the hand wheel is installed to one side of table pole base, the gear shaft is installed to the inboard of hand wheel, the gear is installed in the outside of gear shaft one end, the vortex emergence body is installed to one side of gear, the filling block is installed to the lower extreme of the vortex emergence body. The utility model discloses a series of structural design make the device have two-way flow measurement's function, avoided dismantling loaded down with trivial details of adjusting, and the device has the function that dams, has made things convenient for the observation and the control of flow greatly.

Description

Vortex street flowmeter

Technical Field

The invention relates to the technical field of detection instruments, in particular to a vortex shedding flowmeter.

Background

With the rapid development of social economy, the acceleration of industrialization process, more and more detection instruments are applied to production and life, the vortex street flowmeter is a volume flowmeter which is produced according to the Karman vortex street principle and is used for measuring the volume flow of gas, steam or liquid and the volume flow or mass flow of 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, has simple and firm structure, high reliability, very reliable long-term operation, simple installation and very convenient maintenance, a detection sensor is not directly contacted with the measured medium, stable performance, long service life, pulse signals which are in direct proportion to the flow are output, zero drift is avoided, and the precision is high, so the vortex street flowmeter is widely applied.

However, the existing device does not have the function of bidirectional flow detection, needs to be installed again in a complicated way, does not have the function of flow interception, and is inconvenient for observing and controlling the flow; therefore, the existing requirements are not met, and a vortex shedding flowmeter is provided for the requirements.

Disclosure of Invention

The invention aims to provide a vortex shedding flowmeter, which aims to solve the problems that the existing device in the background art does not have the function of bidirectional flow detection, needs to be installed again in a complicated way, does not have the function of flow interception, is inconvenient to observe and control the flow and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a vortex shedding flowmeter comprises a meter body, wherein flange plates are arranged on two sides of the meter body, flange holes are uniformly distributed on the inner sides of the flange plates, a sealing groove is formed in one side of each flange hole, a meter rod base is arranged at the upper end of the meter body, a locking bolt is arranged at the upper end of the meter rod base, a connecting support is arranged at the upper end of the locking bolt, an instrument is arranged at the upper end of the connecting support, a hand wheel is arranged on one side of the meter rod base, a gear shaft is arranged on the inner side of the hand wheel, a gear is arranged on the outer side of one end of the gear shaft, a vortex generating body is arranged on one side of the gear, a filling block is arranged at the lower end of the vortex generating body, a spring is arranged at the lower end of the filling block, a connecting rod is arranged on one side of, the utility model discloses a vortex generator, including vortex generator, graphite gasket, meter body, sealing washer is installed in the outside of connecting rod, piezoelectric stress sensor is installed to one side of vortex generator, graphite gasket is installed in piezoelectric stress sensor's the outside, the inboard of meter body is provided with the flow hole.

Preferably, the diameter of the meter body pipeline is completely equal to the diameter of the inner hole of the flange plate, and the meter body is connected with the flange plate through welding.

Preferably, the outer side of one end of the gear shaft is completely attached to the inner side of the gear, and the gear shaft is connected with the gear through a flat key.

Preferably, one side of the upper end of the vortex generating body is provided with teeth, and the gear is connected with the vortex generating body through meshing.

Preferably, the lower end of the filling block is provided with a groove, and the filling block is connected with the spring through welding.

Preferably, the lower end of the connecting rod is completely attached to the upper end of the ball valve, and the connecting rod is connected with the ball valve through welding.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention puts the rubber seal ring into the seal groove, inserts the rubber seal ring into the flange hole by using the bolt, connects the two ends of the flange plate with the pipeline to be measured, rotates by operating the hand wheel, because one side of the upper end of the vortex generating body is provided with teeth, the vortex generating body is driven to move up and down by the gear rotation and the engagement of the vortex generating body with the gear rotation, the vortex generating body on one side of the piezoelectric stress sensor on the upper end moves upwards until the lower end of the vortex generating body is flush with the inner wall of the flow hole, simultaneously the spring acts on the filling block to make the upper end of the filling block flush with the inner wall of the flow hole, the hand wheel is operated to make the vortex generating body on the other side of the piezoelectric stress sensor move downwards until the vortex generating body moves to the lowest end, simultaneously the lower end of the vortex generating body acts on the filling block to move to the, the vortex generating body on the left side moves downwards to finish flow detection from left to right, so that the vortex generating bodies on the two sides of the piezoelectric stress sensor can be switched for use to perform bidirectional flow detection, the device has a bidirectional flow detection function, and the trouble of disassembly and adjustment is avoided;

2. when the flow in the flow hole is adjusted, the connecting bracket can be conveniently observed in a short distance, the connecting rod is driven to rotate by operating the operating handle, so that the gap between the inner hole of the ball valve and the flow hole is changed, the medium flowing through the flow hole is adjusted, the effect of intercepting and adjusting is achieved, the device has the function of intercepting, and the observation and the control of the flow are greatly facilitated;

drawings

FIG. 1 is a front view of the overall construction of the present invention;

FIG. 2 is a side view of the overall construction of the present invention;

fig. 3 is a partial structural sectional view of the present invention.

In the figure: 1. a watch body; 2. a flange plate; 3. a flange hole; 4. a sealing groove; 5. a vortex generator; 6. filling blocks; 7. a spring; 8. a gear; 9. a gear shaft; 10. a hand wheel; 11. a gauge stand base; 12. locking the bolt; 13. connecting a bracket; 14. a meter; 15. an operating handle; 16. a connecting rod; 17. a ball valve; 18. a seal ring; 19. a piezoelectric stress sensor; 20. a graphite gasket; 21. a flow orifice.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Piezoelectric stress sensor 19 (model number JY-P300) of the present invention is commercially available or may be obtained from a private order.

Referring to fig. 1 to 3, an embodiment of the present invention includes: a vortex shedding flowmeter comprises a meter body 1, wherein flange plates 2 are respectively installed on two sides of the meter body 1, flange holes 3 are uniformly distributed on the inner side of each flange plate 2, a sealing groove 4 is formed in one side of each flange hole 3, a meter rod base 11 is installed at the upper end of the meter body 1, a locking bolt 12 is installed at the upper end of each meter rod base 11, a connecting support 13 is installed at the upper end of each locking bolt 12, a meter 14 is installed at the upper end of each connecting support 13, a hand wheel 10 is installed on one side of each meter rod base 11, a gear shaft 9 is installed on the inner side of each hand wheel 10, a gear 8 is installed on the outer side of one end of each gear shaft 9, a vortex generator 5 is installed on one side of each gear 8, teeth are arranged on one side of the upper end of each vortex generator 5 and are meshed with the vortex generators 5 through the rotation of the gears 8 to drive the vortex generators, spring 7 is installed to the lower extreme of packing block 6, connecting rod 16 is installed to one side of ring flange 2, operating handle 15 is installed to one side of connecting rod 16 upper end, ball valve 17 is installed to the lower extreme of connecting rod 16, ball valve 17 rotates ninety degrees under the drive of connecting rod 16, make ball valve 17 totally enclosed flow hole 21, resume rotating ninety degrees when ball valve 17, ball valve 17's hole and flow hole 21 complete parallel and level, can not produce the swirl again, sealing washer 18 is installed in the outside of connecting rod 16, piezoelectric stress sensor 19 is installed to one side of vortex generating body 5, graphite gasket 20 is installed in piezoelectric stress sensor 19's the outside, the inboard of table body 1 is provided with flow hole 21.

Further, the size of the diameter of the pipeline of the meter body 1 is completely equal to the size of the diameter of the inner hole of the flange plate 2, and the meter body 1 is connected with the flange plate 2 through welding, so that the meter body 1 is connected with the flange plate 2 into a whole, and the sealing performance of the device is ensured.

Further, the outer side of one end of the gear shaft 9 is completely attached to the inner side of the gear 8, and the gear shaft 9 is connected with the gear 8 through a flat key, so that when the operating hand wheel 10 rotates, the gear shaft 9 drives the gear 8 to synchronously rotate.

Further, one side of vortex shedder 5 upper end is provided with the tooth, and gear 8 is connected through the meshing with vortex shedder 5, rotates through gear 8 and drives vortex shedder 5 with the meshing of vortex shedder and reciprocate for the vortex shedder 5 of piezoelectric stress sensor 19 both sides can change the use.

Further, the lower extreme of filling block 6 is provided with the recess, and filling block 6 passes through welded connection with spring 7 for spring 7 can be effectual be fixed in the lower extreme of filling block 6, and guaranteed the stability of connecting.

Further, the lower extreme of connecting rod 16 and the upper end of ball valve 17 laminate completely, and connecting rod 16 and ball valve 17 pass through welded connection, and ball valve 17 rotates ninety degrees under the drive of connecting rod 16 for ball valve 17 seals flow hole 21 completely, resumes to rotate ninety degrees when ball valve 17, and ball valve 17's hole and flow hole 21 are complete parallel and level, can not produce the swirl once more.

The working principle is as follows: when in use, firstly checking the condition of each mechanism of the device, after confirming that no special condition exists, inserting bolts into the flange holes 3, connecting two ends of the flange plate 2 with a pipeline to be tested, rotating by operating a hand wheel 10, driving the vortex generating body 5 to move up and down by the rotation of a gear 8 and the meshing of the vortex generating body 5, enabling the vortex generating body 5 at one side of an upper end piezoelectric stress sensor 19 to move upwards until the lower end of the vortex generating body 5 is flush with the inner wall of a flow hole 21, simultaneously enabling the spring 7 to act on the filling block 6, enabling the upper end of the filling block 6 to be flush with the inner wall of the flow hole 21, operating the hand wheel 10 to enable the vortex generating body 5 at the other side of the piezoelectric stress sensor 19 to move downwards until the vortex generating body 5 moves to the lowest end, and enabling the lower end of the vortex generating body 5 to act on the filling block 6 to, can accomplish the flow detection from the right side left, with the vortex shedder 5 upward movement on operation piezoelectricity stress transducer 19 right side, left vortex shedder 5 downward movement, can accomplish the flow detection from the left side right, make the vortex shedder 5 of piezoelectricity stress transducer 19 both sides can change the use, carry out the bidirectional detection flow, when the flow of needs convection current hole 21 inside is adjusted, and conveniently closely observe linking bridge 13, operation operating handle 15 drives connecting rod 16 and rotates, make the hole of ball valve 17 and the clearance in flow hole 21 have the size change, thereby adjust the medium in flow hole 21, reach the effect of damming the regulation.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A vortex shedding flowmeter comprises a meter body (1), and is characterized in that: the vortex generating body is characterized in that the flange plates (2) are mounted on two sides of the meter body (1), flange holes (3) are uniformly distributed on the inner sides of the flange plates (2), a sealing groove (4) is formed in one side of each flange hole (3), a meter rod base (11) is mounted at the upper end of the meter body (1), a locking bolt (12) is mounted at the upper end of the meter rod base (11), a connecting support (13) is mounted at the upper end of the locking bolt (12), an instrument (14) is mounted at the upper end of the connecting support (13), a hand wheel (10) is mounted on one side of the meter rod base (11), a gear shaft (9) is mounted on the inner side of the hand wheel (10), a gear (8) is mounted on the outer side of one end of the gear shaft (9), a vortex generating body (5) is mounted on one side of the gear (8), and, spring (7) are installed to the lower extreme of filling block (6), connecting rod (16) are installed to one side of ring flange (2), operating handle (15) are installed to one side of connecting rod (16) upper end, ball valve (17) are installed to the lower extreme of connecting rod (16), sealing washer (18) are installed in the outside of connecting rod (16), piezoelectric stress sensor (19) are installed to one side of the vortex generating body (5), graphite gasket (20) are installed in the outside of piezoelectric stress sensor (19), the inboard of the table body (1) is provided with flow hole (21).

2. The vortex shedding flowmeter of claim 1, wherein: the size of the diameter of the pipeline of the meter body (1) is completely equal to the diameter of the inner hole of the flange plate (2), and the meter body (1) is connected with the flange plate (2) through welding.

3. The vortex shedding flowmeter of claim 1, wherein: the outer side of one end of the gear shaft (9) is completely attached to the inner side of the gear (8), and the gear shaft (9) is connected with the gear (8) through a flat key.

4. The vortex shedding flowmeter of claim 1, wherein: one side of the upper end of the vortex generating body (5) is provided with teeth, and the gear (8) is connected with the vortex generating body (5) through meshing.

5. The vortex shedding flowmeter of claim 1, wherein: the lower end of the filling block (6) is provided with a groove, and the filling block (6) is connected with the spring (7) through welding.

6. The vortex shedding flowmeter of claim 1, wherein: the lower extreme of connecting rod (16) is laminated completely with the upper end of ball valve (17), connecting rod (16) and ball valve (17) pass through welded connection.