CN212007349U

CN212007349U - Vortex street flowmeter

Info

Publication number: CN212007349U
Application number: CN202021064749.XU
Authority: CN
Inventors: 范叔卫; 张�廷; 范叔晋; 陈通照; 白帆; 范叔慈
Original assignee: Zhejiang Aoxin Instrument Co Ltd
Current assignee: Zhejiang Aoxin Instrument Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-11-24
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a vortex shedding flowmeter, including surveying buret, set up in the vortex emergence body of survey buret, set up in the connecting rod of surveying buret and set up in the vortex street flow converter of connecting rod, be equipped with the installation cavity that supplies the test probe installation in surveying buret, be equipped with the connection chamber of intercommunication installation cavity in the connecting rod, be equipped with the intercommunication on the connecting rod and connect chamber and external installing port, be equipped with the apron that is used for opening and close the installing port on the connecting rod, it is provided with the slider towards installation cavity reciprocating motion to slide in the connection cavity, be equipped with test probe on the slider, it supports the linkage subassembly of tight seal in the installation cavity with test probe to be equipped with the drive slider when apron seal installation mouth between slider and. The utility model has the advantages of it is following and effect: the utility model discloses can carry out solitary maintenance or change to test probe to reduce cost of maintenance.

Description

Vortex street flowmeter

Technical Field

The utility model relates to a flowmeter field, in particular to 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 detection probe of the existing vortex shedding flowmeter is fixedly arranged in the measuring tube, and the vortex shedding flowmeter is particularly applied to working conditions such as sewage and the like because the medium fluid contains some particle impurities. The particle impurities impact the detection probe under the high-speed driving of the fluid, so that the detection probe is easily damaged, and the existing vortex shedding flowmeter cannot independently maintain the damaged detection probe and needs to be wholly replaced, so that the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vortex flowmeter, this vortex flowmeter can carry out solitary maintenance or change to test probe to reduce cost of maintenance.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a vortex shedding flowmeter, includes survey buret, sets up in the vortex emergence body of survey buret, sets up in the connecting rod of surveying buret and sets up in the vortex flow converter of connecting rod, be equipped with the installation cavity that supplies the test probe installation in surveying buret, be equipped with the connection chamber of intercommunication installation cavity in the connecting rod, be equipped with the intercommunication on the connecting rod and connect chamber and external installing port, be equipped with the apron that is used for opening and close the installing port on the connecting rod, it is provided with the slider towards installation cavity reciprocating motion to slide in the connection cavity, be equipped with test probe on the slider, it supports the link assembly of tight seal in the installation cavity with test probe to be equipped with the drive slider when apron seal installation.

Through adopting above-mentioned technical scheme, when the sealed installation mouth of apron, support tightly sealed in the installation cavity with test probe through linkage assembly drive slider to realize the sealed between test probe and the installation cavity, prevent to take place to leak. When the detection probe needs to be replaced or maintained, the cover plate is opened, the sliding block loses the acting force applied to the sliding block by the cover plate, so that a worker can take out the sliding block with the detection probe through the mounting port, the detection probe is maintained or replaced independently, and the maintenance cost is reduced.

Further setting the following steps: the linkage assembly comprises a top block arranged on the cover plate, a first guide inclined plane arranged on the top block and a second guide inclined plane arranged on the sliding block and matched with the first guide inclined plane.

Through adopting above-mentioned technical scheme, the kicking block is driven to move towards the mounting hole is inside when the mounting hole is located to the apron lid, through the effect of the cooperation change force direction between first guide inclined plane and the second guide inclined plane between the two for the kicking block towards the inside removal of mounting hole can drive the slider and move towards the installation cavity, thereby realize supporting tightly sealed between the two of test probe and installation cavity.

Further setting the following steps: and a spring for driving the sliding block to move towards one side of the connecting cavity is arranged between the sliding block and the mounting cavity, and when the spring is in an initial state, the sliding block corresponds to the mounting opening.

Through adopting above-mentioned technical scheme, when will take out test probe, can drive the slider through setting up of spring and drive test probe and move towards the installing port and be close to the installing port, enable the workman like this and make the slider take out more convenient, make the operation more simple and convenient.

Further setting the following steps: the inside of slider is equipped with the mounting hole that runs through the slider along the slider slip direction, be equipped with between mounting hole and the test probe and fasten the test probe in the rubber block of mounting hole.

Through adopting above-mentioned technical scheme, the tight fit between test probe and the mounting hole is realized in the setting of block rubber, convenient dismantlement, and the setting of block rubber also can play certain damping effect, and the setting of mounting hole is conveniently walked the line installation.

Further setting the following steps: the device comprises a connecting part which is arranged on a detection probe and is positioned between the lower end face of a sliding block and an installation cavity, and an insulating sealing gasket is arranged on the wall of the installation cavity.

Through adopting above-mentioned technical scheme, insulating sealed setting up realizes better sealed and plays insulating effect, and slider drive connecting portion support tightly in the installation cavity wall for realize sealed.

Further setting the following steps: a placing groove for placing the spring is formed in the wall of the mounting cavity.

Through adopting above-mentioned technical scheme, the setting of standing groove supplies the spring holding for detection probe can be better support tightly in the installation cavity wall, thereby reaches better sealed effect.

Further setting the following steps: the position of the top block corresponding to the mounting hole is provided with a line hole penetrating through the top block along the sliding direction of the sliding block, and the wall of the line hole penetrates through the top block along one side back to the cover plate to form an opening.

Through adopting above-mentioned technical scheme, the setting in line hole conveniently walks the line installation, and when the kicking block took out the installing port, is used for realizing the separation between kicking block and the wire through the open-ended setting.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses can carry out solitary maintenance or change to test probe to reduce cost of maintenance.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a partial schematic structural view of an embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of the top block in the embodiment.

In the figure: 1. a measurement tube; 2. a vortex generator; 3. a connecting rod; 4. a vortex street flow converter; 5. a mounting cavity; 6. a connecting cavity; 7. an installation port; 8. a cover plate; 9. a slider; 10. detecting a probe; 11. a top block; 12. a first guide ramp; 13. a second guide ramp; 14. a spring; 15. mounting holes; 16. a rubber block; 17. a connecting portion; 18. an insulating gasket; 19. a placement groove; 20. a wire hole; 21. and (4) opening.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a vortex shedding flowmeter includes a measuring pipe 1, a vortex generating body 2 installed in the measuring pipe 1, a connecting rod 3 fixedly disposed above the measuring pipe 1, and a vortex shedding flow converter 4 fixedly disposed above the connecting rod 3. The measuring tube 1 is internally provided with a mounting cavity 5 for mounting the detection probe 10, the connecting cavity 6 communicated with the mounting cavity 5 is internally provided with the connecting rod 3, and the connecting rod 3 is provided with a mounting opening 7 communicated with the connecting cavity 6 and the outside. The connecting rod 3 is provided with a cover plate 8 for opening and closing the mounting opening 7, and the bolt penetrates through the cover plate 8 to be in threaded connection with the connecting rod 3 so as to fix the cover plate 8 on the connecting rod 3.

The fixed insulating sealed 18 that is provided with of installation cavity 5 wall, it is provided with the slider 9 towards installation cavity 5 reciprocating motion to connect the interior cunning of chamber 6, and the mounting hole 15 that runs through slider 9 along slider 9 slip direction is seted up to slider 9's inside, is equipped with test probe 10 in the mounting hole 15, is equipped with between mounting hole 15 and the test probe 10 and fastens test probe 10 in the rubber block 16 of mounting hole 15. The detection probe 10 is integrally provided with a connecting part 17, and the connecting part 17 is positioned right below the lower end surface of the slide block 9.

And a linkage assembly which drives the sliding block 9 to tightly press and seal the detection probe 10 on the insulating sealing gasket 18 when the cover plate 8 seals the mounting opening 7 is arranged between the sliding block 9 and the cover plate 8. The linkage assembly comprises a top block 11 fixedly arranged on the cover plate 8, a first guide inclined surface 12 arranged on the top block 11 and a second guide inclined surface 13 arranged on the sliding block 9 and matched with the first guide inclined surface 12. When the cover plate 8 seals the mounting opening 7, the slide block 9 is driven by the matching between the first guide inclined surface 12 and the second guide inclined surface 13 to tightly seal the connecting part 17 against the insulating sealing gasket 18.

A spring 14 for driving the sliding block 9 to move towards one side of the connecting cavity 6 is arranged between the sliding block 9 and the mounting cavity 5, a placing groove 19 for placing the spring 14 is formed in the wall of the mounting cavity 5, and when the spring 14 is located in the placing groove 19 and is in an initial state, the sliding block 9 corresponds to the mounting opening 7. The top block 11 is provided with a line hole 20 which penetrates through the top block 11 along the sliding direction of the sliding block 9 at the position corresponding to the mounting hole 15, and an opening 21 is formed by the line hole 20 which penetrates through the top block 11 along the side back to the cover plate 8.

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 to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a vortex shedding flowmeter, includes survey buret (1), sets up vortex emergence body (2) in surveying buret (1), sets up in connecting rod (3) of surveying buret (1) and sets up in vortex street flow converter (4) of connecting rod (3), be equipped with installation cavity (5) that supply test probe (10) to install in surveying buret (1), its characterized in that: be equipped with connection chamber (6) of intercommunication installation cavity (5) in connecting rod (3), be equipped with intercommunication connection chamber (6) and external installing port (7) on connecting rod (3), be equipped with apron (8) that are used for opening and close installing port (7) on connecting rod (3), connection chamber (6) internal slipping is provided with slider (9) towards installation cavity (5) reciprocating motion, be equipped with test probe (10) on slider (9), be equipped with between slider (9) and apron (8) and drive slider (9) when apron (8) seal installation mouth (7) and support test probe (10) tightly in the linkage subassembly of installation cavity (5).

2. The vortex shedding flowmeter of claim 1, wherein: the linkage assembly comprises a top block (11) arranged on the cover plate (8), a first guide inclined surface (12) arranged on the top block (11) and a second guide inclined surface (13) arranged on the sliding block (9) and matched with the first guide inclined surface (12).

3. The vortex shedding flowmeter of claim 1, wherein: and a spring (14) for driving the sliding block (9) to move towards one side of the connecting cavity (6) is arranged between the sliding block (9) and the mounting cavity (5), and when the spring (14) is in an initial state, the sliding block (9) corresponds to the mounting opening (7).

4. The vortex shedding flowmeter of claim 2, wherein: the inner part of the sliding block (9) is provided with a mounting hole (15) penetrating through the sliding block (9) along the sliding direction of the sliding block (9), and a rubber block (16) fastening the detection probe (10) in the mounting hole (15) is arranged between the mounting hole (15) and the detection probe (10).

5. The vortex shedding flowmeter of claim 4, wherein: the device comprises a connecting part (17) which is arranged on a detection probe (10) and is positioned between the lower end face of a sliding block (9) and an installation cavity (5), wherein an insulating sealing gasket (18) is arranged on the wall of the installation cavity (5).

6. A vortex shedding flowmeter according to claim 3, wherein: and a placing groove (19) for placing the spring (14) is formed in the wall of the mounting cavity (5).

7. The vortex shedding flowmeter of claim 4, wherein: the position of the top block (11) corresponding to the mounting hole (15) is provided with a line hole (20) which penetrates through the top block (11) along the sliding direction of the sliding block (9), and the wall of the line hole (20) penetrates through the top block (11) along one side back to the cover plate (8) to form an opening (21).