CN215984694U

CN215984694U - Small-flow vortex street flowmeter body

Info

Publication number: CN215984694U
Application number: CN202122258506.0U
Authority: CN
Inventors: 许清华; 阳建新; 许坤阳; 阳逸雄
Original assignee: Shanghai Xinliao Electromechanical Technology Co ltd
Current assignee: Shanghai Xinliao Electromechanical Technology Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-03-08
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to the technical field of vortex shedding flowmeters, in particular to a small-flow vortex shedding flowmeter body which comprises a fluid pipeline and a vortex shedding flowmeter, wherein the fluid pipeline is connected with the vortex shedding flowmeter at the top of the fluid pipeline through bolts, two ends of the fluid pipeline are fixedly connected with sleeve pipes, a conveying pipeline is fixedly connected to the inner wall of the fluid pipeline, a conical drainage pipe is fixedly connected to the inner wall of the fluid pipeline, the bottom wall of the conical drainage pipe is connected with one end, positioned at the inner side, of the conveying pipeline, and a group of drainage holes are formed in the circumference of the outer wall of the conical drainage pipe; the spiral fluid pipe is characterized in that the flow-dispersing strip is arranged on the inner wall of the fluid pipe, the diameter of the front end of the flow-dispersing strip is gradually increased from outside to outside, and the flow speed of the fluid pipe is gradually reduced along with the expansion of the pipe diameter when the fluid flows in from the inlet end.

Description

Small-flow vortex street flowmeter body

Technical Field

The utility model relates to the technical field of vortex shedding flowmeters, in particular to a small-flow vortex shedding flowmeter body.

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, standard condition volume flow or mass flow of gas, steam or liquid. The flow meter is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like. Its advantages are low pressure loss, wide range of measuring range, high precision and no influence from fluid density, pressure, temp and viscosity. No movable mechanical parts are needed, so the reliability is high and the maintenance amount is small. The analog standard signal and the digital pulse signal are output, so that the digital pulse signal measuring instrument is easily matched with a computer and other digital systems, and is an advanced and ideal measuring instrument.

However, the current vortex shedding flowmeter cannot well control the flow speed of fluid in a pipeline, and the high-speed flow of the fluid in the pipeline can cause great impact on a flowmeter main body, so that internal parts of the vortex shedding flowmeter are damaged, and the service life of the vortex shedding flowmeter is influenced.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Aiming at the defects in the prior art, the utility model provides a small-flow vortex shedding flowmeter body, which solves the problems that the vortex shedding flowmeter cannot well control the flow speed of fluid in a pipeline, and the high-speed flow of the fluid in the pipeline can cause large impact on a flowmeter main body, so that internal parts of the vortex shedding flowmeter are damaged, and the service life of the vortex shedding flowmeter is influenced.

Technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a small-flow vortex shedding flowmeter body comprises a fluid pipeline and a vortex flowmeter, wherein the fluid pipeline is connected with the vortex flowmeter at the top of the fluid pipeline through bolts, sleeve pipes are fixedly connected to two ends of the fluid pipeline, a conveying pipeline is fixedly connected to the inner wall of the fluid pipeline, a conical drainage pipe is fixedly connected to the inner wall of the fluid pipeline, the bottom wall of the conical drainage pipe is connected with one end, located on the inner side, of the conveying pipeline, a group of drainage holes are formed in the outer wall of the conical drainage pipe in the circumferential direction, and one end, away from the conveying pipeline, of the conical drainage pipe is fixedly connected with a flow blocking cap through a connecting column; the utility model discloses a fluid pipeline, including telescopic pipe, pipeline groove, pressure piece, pipeline pipe front end pipe diameter from outer by little grow for when fluid flows in from the entering end, the velocity of flow reduces gradually along with the expansion of pipe diameter, thereby reduces the impact of fluid to the fluid pipeline inner wall.

Furthermore, a group of flow dredging strips are circumferentially connected to the inner wall of the conveying pipeline, a group of direct-current strips are circumferentially connected to the inner wall of the conveying pipeline, a gap is reserved between the flow dredging strips and the close ends of the direct-current strips, and fluid flows spirally through the guide of the flow dredging strips and the direct-current strips and is converted into direct current, so that the impact of the fluid on the inner wall of the fluid pipeline is reduced, and the service life of the fluid pipeline is prolonged.

Furthermore, one end of the conical drainage pipe, which is far away from the conveying pipeline, is circumferentially connected with a group of connecting columns, the connecting columns are fixedly connected between the conical drainage pipe and the flow blocking cap, and the flow blocking cap is used for blocking and dispersing the impact force of fluid so as to prevent the fluid from concentrating the impact force to damage the vortex street flowmeter.

Furthermore, the interior of the built-in groove is rotatably connected with a pressing block through a rotating shaft, the two opposite surfaces of the built-in groove and the pressing block which are connected through the rotating shaft are connected through a torsion spring, and the pressing block is locked and fixed with a pipeline which is arranged in the pipeline groove.

Furthermore, a supporting spring is fixedly connected to the top wall of the inner cavity of the built-in groove, the bottom end of the supporting spring is connected with the bottom wall of the front end of the pressing block, and the supporting spring and the torsion spring are matched with each other to apply acting force to the pressing block, so that the pressing block is locked and fixed to a pipeline which is arranged in the pipeline groove.

Furthermore, the top wall and the bottom wall of the front end part of the pipeline groove are fixedly connected with rubber rings, the inner diameter of each rubber ring is from small to large, and the rubber rings are made of corrosion-resistant materials.

Furthermore, the outer sides of the two ends of the fluid pipeline are fixedly connected with flange plates, and the inner circumference of the flange plates is provided with a group of through holes for connecting the vortex shedding flowmeter with other pipelines.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the utility model has the following beneficial effects:

1. the utility model uses the arranged conveying pipeline to dredge the fluid in the fluid pipeline, the pipe diameter of the front end of the conveying pipeline is changed from small to big, so that when the fluid flows in from the inlet end, the flow speed is gradually reduced along with the expansion of the pipe diameter, and then the fluid is guided by the dredging strips and the straight strips to convert the fluid flowing spirally into the straight flow, thereby reducing the impact of the fluid on the inner wall of the fluid pipeline, prolonging the service life of the fluid pipeline and greatly reducing the impact of the fluid flowing at high speed on the flowmeter main body and the inner wall of the fluid pipeline.

2. The conical drainage pipe is used for reducing the damage rate of the vortex shedding flowmeter, when fluid drained through the conveying pipeline passes through the conical drainage pipe, the fluid can disperse and flow out of the drainage hole due to the fact that the diameter of the opening of the conical drainage pipe is from large to small, a small part of the fluid is blocked by the flow blocking cap and disperses the impact force of the fluid, the vortex shedding flowmeter is prevented from being damaged due to the concentrated impact force of the fluid, the large impact of the high-speed flowing fluid on the flowmeter main body is reduced, and the service life of the vortex shedding flowmeter is prolonged.

3. The sleeve pipe is arranged so as to be convenient for connecting other pipelines, when the pipeline is placed in the pipeline groove, the sleeve pipe is abutted against the pressing block, the pressing block can be deflected downwards due to the arc shape of the pressing block, and the supporting spring and the torsion spring are mutually matched to apply acting force to the pressing block, so that the pressing block is locked and fixed on the pipeline placed in the pipeline groove; the rubber ring internal diameter diminishes from outside to inside gradually, can seal between going on pipeline and sleeve pipe and help pressing the briquetting to lock fixedly, has improved vortex flowmeter and pipe connection's efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic perspective view of a vortex shedding flowmeter according to the present invention;

FIG. 2 is a schematic view of a partial volumetric anatomy of a fluid conduit according to the present invention;

FIG. 3 is a perspective anatomical view of a delivery conduit according to the present invention;

FIG. 4 is a perspective anatomical representation of a sleeve tube of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

the reference numerals in the drawings denote: 1. a fluid conduit; 2. a vortex flow meter; 3. a quill tube; 4. a pipe chase; 5. a rubber ring; 6. a flange plate; 7. a delivery conduit; 8. a tapered draft tube; 9. a drain hole; 10. connecting columns; 11. a flow blocking cap; 12. flow-dredging strips; 13. a DC bar; 14. a built-in groove; 15. a pressing block; 16. a support spring; 17. a torsion spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

The small flow vortex shedding flowmeter body of the embodiment, as shown in fig. 1, comprises a fluid pipeline 1 and a vortex shedding flowmeter 2, wherein the fluid pipeline 1 is connected with the vortex shedding flowmeter 2 at the top thereof through bolts, two ends of the fluid pipeline 1 are both fixedly connected with sleeve pipes 3, and the inner wall of the fluid pipeline 1 is fixedly connected with a conveying pipeline 7; a group of flow dispersing strips 12 are circumferentially connected to the inner wall of the conveying pipeline 7, a group of direct current strips 13 are circumferentially connected to the inner wall of the conveying pipeline 7, and a space is reserved between the flow dispersing strips 12 and the close ends of the direct current strips 13; the outer sides of the two ends of the fluid pipeline 1 are fixedly connected with flange plates 6, and a group of through holes are formed in the inner circumference of the flange plates 6.

This small flow vortex street flowmeter is used for dredging the fluid in the fluid pipeline 1 through the pipeline 7 that sets up, pipeline 7 front end pipe diameter is from outer little grow, when making the fluid flow into from the entering end, along with the expansion of pipe diameter, the velocity of flow reduces gradually, the fluid that will be spiral flow through the direction of dredging flow strip 12 and direct current strip 13 after then converts the direct current into, thereby reduce the impact of fluid to the fluid pipeline 1 inner wall, the life of fluid pipeline 1 has been improved, the impact force of the fluid of high-speed flow to flowmeter main part and fluid pipeline 1 inner wall has significantly reduced.

As shown in fig. 2 to 3, a conical drain pipe 8 is fixedly connected to the inner wall of the fluid pipeline 1, the bottom wall of the conical drain pipe 8 is connected to the inner end of the conveying pipeline 7, a group of drain holes 9 is circumferentially formed in the outer wall of the conical drain pipe 8, and a flow blocking cap 11 is fixedly connected to one end of the conical drain pipe 8, which is far away from the conveying pipeline 7, through a connecting column 10; one end of the conical drainage pipe 8, which is far away from the conveying pipeline 7, is circumferentially connected with a group of connecting columns 10, and the connecting columns 10 are fixedly connected between the conical drainage pipe 8 and the flow blocking cap 11.

This small flow vortex flowmeter is used for reducing vortex flowmeter's damaged rate through the toper dredging pipe 8 that sets up, when the fluid of dredging through pipeline 7 passes through toper dredging pipe 8, because of toper dredging pipe 8 bore by big to little, the fluid can be followed and dredged the interior dispersion of discharge hole 9 and flowed, little part of fluid is blockked and disperses its impact force by hindering flow cap 11, in order to avoid the fluid to concentrate the impact force and cause the damage to vortex flowmeter, the fluid that has reduced high-speed flow causes great impact to the flowmeter main part, thereby vortex flowmeter's life has been improved.

As shown in fig. 4 to 5, a pipe groove 4 is formed in the sleeve pipe 3, a group of built-in grooves 14 is formed on the circumference of an inner cavity of the pipe groove 4, and a pressing block 15 is movably connected in the built-in grooves 14; the interior of the built-in groove 14 is rotatably connected with a pressing block 15 through a rotating shaft, and the two opposite surfaces of the built-in groove 14 and the pressing block 15 which are connected through the rotating shaft are connected through a torsion spring 17; a supporting spring 16 is fixedly connected to the top wall of the inner cavity of the built-in groove 14, and the bottom end of the supporting spring 16 is connected with the bottom wall of the front end of the pressing block 15; equal fixedly connected with rubber ring 5 on the roof of duct groove 4 front end and the diapire, and the internal diameter specification of rubber ring 5 is by little to big, and what rubber ring 5 adopted is corrosion resistant material.

The small-flow vortex street flowmeter is convenient for connecting other pipelines through the sleeve pipe 3, when the pipelines are placed in the pipeline groove 4, the pipelines abut against the pressing block 15, the pressing block 15 can be deflected downwards due to the arc shape of the pressing block 15, and the supporting spring 16 and the torsion spring 17 are mutually matched to apply acting force to the pressing block 15, so that the pressing block 15 is locked and fixed on the pipelines placed in the pipeline groove 4; the internal diameter of the rubber ring 5 is gradually reduced from outside to inside, so that the sealing and pressing block 15 can be used for locking and fixing between the pipeline and the sleeve pipe 3, and the efficiency of connecting the vortex shedding flowmeter and the pipeline is improved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A small flow vortex shedding flowmeter body, includes fluid pipeline (1) and vortex flowmeter (2), its characterized in that: the fluid pipeline (1) is connected with the vortex flowmeter (2) at the top of the fluid pipeline through bolts, sleeve pipes (3) are fixedly connected to two ends of the fluid pipeline (1), a conveying pipeline (7) is fixedly connected to the inner wall of the fluid pipeline (1), a conical drainage pipe (8) is fixedly connected to the inner wall of the fluid pipeline (1), the bottom wall of the conical drainage pipe (8) is connected with one end, located on the inner side, of the conveying pipeline (7), a group of drainage holes (9) are formed in the outer wall of the conical drainage pipe (8) in the circumferential direction, and one end, far away from the conveying pipeline (7), of the conical drainage pipe (8) is fixedly connected with a flow blocking cap (11) through a connecting column (10); pipeline groove (4) have been seted up to the inside of cover barrel (3), and a set of built-in groove (14) have been seted up to the inner chamber circumference of pipeline groove (4), the inside swing joint of built-in groove (14) has presses according to briquetting (15).

2. The small-flow vortex shedding flowmeter body according to claim 1, wherein a group of flow-dredging strips (12) are circumferentially connected to the inner wall of the conveying pipeline (7), a group of direct-current strips (13) are circumferentially connected to the inner wall of the conveying pipeline (7), and a gap is reserved between the flow-dredging strips (12) and the close ends of the direct-current strips (13).

3. The small-flow vortex shedding flowmeter body according to claim 1, wherein one end of the conical drainage pipe (8) far away from the conveying pipeline (7) is circumferentially connected with a group of connecting columns (10), and the connecting columns (10) are fixedly connected between the conical drainage pipe (8) and the flow blocking cap (11).

4. The small flow vortex shedding flowmeter body according to claim 1, wherein the interior of the built-in groove (14) is rotatably connected with a pressing block (15) through a rotating shaft, and two opposite surfaces of the built-in groove (14) and the pressing block (15) which are connected through the rotating shaft are connected through a torsion spring (17).

5. The small flow vortex street flowmeter body according to claim 1, characterized in that a supporting spring (16) is fixedly connected to the top wall of the inner cavity of the built-in groove (14), and the bottom end of the supporting spring (16) is connected to the bottom wall of the front end of the pressing block (15).

6. The small-flow vortex shedding flowmeter body according to claim 1, wherein rubber rings (5) are fixedly connected to the top wall and the bottom wall of the front end of the pipeline groove (4), the inner diameter of each rubber ring (5) is gradually increased, and the rubber rings (5) are made of corrosion-resistant materials.

7. The small-flow vortex shedding flowmeter body according to claim 1, wherein flanges (6) are fixedly connected to the outer sides of the two ends of the fluid pipeline (1), and a set of through holes are formed in the inner circumference of each flange (6).