CN218994422U

CN218994422U - Precession vortex flowmeter

Info

Publication number: CN218994422U
Application number: CN202223522361.1U
Authority: CN
Inventors: 俞平权
Original assignee: Boca Measurement And Control Technology Shanghai Co ltd
Current assignee: Boca Measurement And Control Technology Shanghai Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-09
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of flow meters, in particular to a precession vortex flowmeter. Its technical scheme includes gauge outfit, casing and vortex generator, casing upper surface intermediate position department installs the connecting rod, the connecting rod is located the inside one end of casing and is connected with the detection head, connecting rod end-to-end connection has the gauge outfit, vortex generator is installed to inside one side of casing, the casing upper surface is close to vortex generator outside position department welding has a fixed pipe, fixed pipe upper surface welding has a flange, flange upper surface mounting has sealing flange, sealing flange lower surface connection has the connecting rod, connecting rod end-to-end connection has a section of thick bamboo, the section of thick bamboo outside is equipped with the import, surface mounting has lower sealing block under the section of thick bamboo. The utility model can filter out the particle impurities contained in the fluid, reduce the abrasion of the vortex generator and the surface of the detection head, prolong the service life of the flowmeter and ensure the measurement accuracy of the fluid flow.

Description

Precession vortex flowmeter

Technical Field

The utility model relates to the technical field of flowmeters, in particular to a precession vortex flowmeter.

Background

The precession vortex flowmeter adopts advanced micro-processing technology, has the advantages of strong function, wide flow range, simple operation and maintenance, convenient installation and use and the like, and the working principle is as follows: when fluid passes through the vortex generator consisting of the spiral blades, the fluid is forced to rotate around the generator body to form vortex, when the fluid enters the diffusion section, the vortex flow is subjected to the backflow effect to start to rotate for the second time, so that a gyroscopic vortex precession phenomenon is formed, the precession frequency is in direct proportion to the flow, the influence of the physical property and the density of the fluid is avoided, the flow is known by the detection element for measuring the secondary rotational precession frequency of the fluid, and good linearity can be obtained in a wider flow range.

In the use process of the existing precession vortex flowmeter, particle impurities contained in fluid can wear the surfaces of a vortex generator and a detection head in the flowing process, so that the fluid flow detection precision is high, and therefore, the precession vortex flowmeter is provided.

Disclosure of Invention

The utility model aims to provide a precession vortex flowmeter, which has the advantages of filtering out particle impurities contained in fluid, reducing abrasion on the surfaces of a vortex generator and a detection head, prolonging the service life of the flowmeter and guaranteeing the measurement accuracy of fluid flow, and solves the problem that the particle impurities contained in the fluid can abrade the surfaces of the vortex generator and the detection head in the flowing process of the traditional precession vortex flowmeter so as to ensure the detection accuracy of fluid flow.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including gauge outfit, casing and vortex generator, casing upper surface intermediate position department installs the connecting rod, the connecting rod is located the inside one end of casing and is connected with the detection head, connecting rod end-to-end connection has the gauge outfit, vortex generator is installed to inside one side of casing, the casing upper surface is close to vortex generator outside position department welding has a fixed pipe, fixed pipe upper surface welding has a flange, flange upper surface installs sealing flange, sealing flange lower surface is connected with the connecting rod, connecting rod end-to-end connection has a section of thick bamboo, the section of thick bamboo outside is equipped with the import, section of thick bamboo lower surface mounting has down sealing block, section of thick bamboo upper surface mounting has last sealing block.

Preferably, a groove is formed in the bottom of the inner wall of the shell, the lower sealing block is located in the groove, and the groove plays a limiting role on the lower sealing block and the filter cylinder.

Preferably, a conical ring is welded on the inner wall of the shell near the outer side of the filter cylinder, and the conical ring is arranged so that fluid flowing in the shell can enter the filter cylinder from the inlet.

Preferably, the upper surface of the sealing flange is welded with a handle, and the sealing flange is lifted by the handle after the bolts between the sealing flange and the fixing flange are loosened.

Preferably, the fixed pipe both sides are close to upper surface position department symmetry and divide and be equipped with the spout, two the spout is inside all to peg graft has the round pin axle, two the round pin axle surface all is connected with the spring, and two the spring end respectively with fixed pipe surface both sides position department is connected, lower sealing block both sides position department symmetry divide and be equipped with the draw-in groove, stretch out the outside of fixed pipe when the filter cartridge, and lower sealing block is located the inside of fixed pipe, and the round pin axle inserts the inside of draw-in groove to fix lower sealing block.

Preferably, the two sides of the shell are symmetrically welded with connecting flanges, and the shell is connected into the fluid pipeline through the two connecting flanges.

Preferably, a rectifier is arranged at one side of the inner part of the shell, which is away from the vortex generator, and fluid flowing through the rectifier tends to be stable, so that the influence of the vortex fluid on subsequent detection equipment is prevented.

Preferably, the shell surface is installed with the puigging, and the puigging plays the effect of making an uproar falls.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the fixing pipe, the fixing flange, the sealing flange, the filter cartridge, the upper sealing block and the lower sealing block, particle impurities contained in fluid can be filtered, abrasion of the surfaces of the vortex generator and the detecting head is reduced, the service life of the flowmeter is prolonged, the effect of measuring accuracy of fluid flow is guaranteed, when the fluid flow measuring device is used, the shell is connected into a fluid pipeline through the two connecting flanges, the fluid firstly enters the filter cartridge before flowing through the vortex generator, the particle impurities contained in the fluid are filtered through the filter cartridge, abrasion to the inner wall of the shell, the surface of the vortex generator and the surface of the detecting head is avoided, the fluid passes through the vortex generator and then is detected through the detecting head, the fluid flow is displayed through the gauge head, when the particle impurities of the filter cartridge are cleaned, bolts between the fixing flange and the sealing flange are loosened, the sealing flange is lifted up, the filter cartridge extends out of the fixing pipe, the lower sealing block is positioned in the fixing pipe, normal conveying of the fluid is not affected when cleaning, the filter cartridge is inserted into the shell after cleaning is completed, and the sealing flange and the fixing flange is fixedly connected through bolts.

2. According to the utility model, by arranging the pin hole, the spring and the clamping groove, the effect of fixing the lower sealing block in the fixing pipe when the interior of the filter cylinder is cleaned is achieved, and when the filter cylinder extends out of the fixing pipe, the lower sealing block is positioned in the fixing pipe, and the pin shaft is inserted into the clamping groove, so that the lower sealing block is fixed.

Drawings

FIG. 1 is a schematic diagram of the main sectional structure of the present utility model;

FIG. 2 is a schematic view of a partial main sectional structure of a sealing flange of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Reference numerals: 1. a gauge head; 2. a connecting rod; 3. a housing; 4. a sound insulation layer; 5. a connecting flange; 6. a rectifier; 7. a detection head; 8. a vortex generator; 9. a filter cartridge; 10. a clamping groove; 11. a lower sealing block; 12. a groove; 13. a conical ring; 14. a fixed tube; 15. a sealing flange; 16. a fixed flange; 17. a handle; 18. a connecting rod; 19. an upper sealing block; 20. an inlet; 21. a pin shaft; 22. a chute; 23. and (3) a spring.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

As shown in fig. 1 to 3, the precession vortex flowmeter provided by the utility model comprises a gauge outfit 1, a shell 3 and a vortex generator 8, wherein a connecting rod 2 is arranged at the middle position of the upper surface of the shell 3, one end of the connecting rod 2 positioned in the shell 3 is connected with a detection head 7, the tail end of the connecting rod 2 is connected with the gauge outfit 1, one side of the inner part of the shell 3 is provided with the vortex generator 8, a fixed pipe 14 is welded on the upper surface of the shell 3 near the outer side of the vortex generator 8, sliding grooves 22 are symmetrically arranged on the two sides of the fixed pipe 14 near the upper surface, pin shafts 21 are inserted in the two sliding grooves 22, springs 23 are connected on the outer surfaces of the two pin shafts 21, the tail ends of the two springs 23 are respectively connected with the two sides of the outer surface of the fixed pipe 14, clamping grooves 10 are symmetrically arranged on the two sides of a lower sealing block 11, a fixed flange 16 is welded on the upper surface of the fixed pipe 14, the upper surface of the fixed flange 16 is provided with a sealing flange 15, the sealing flange 15 and the fixed flange 16 are connected through bolts, the upper surface of the sealing flange 15 is welded with a handle 17, after the bolts between the sealing flange 15 and the fixed flange 16 are disassembled, the sealing flange 15 is lifted up through the handle 17, the lower surface of the sealing flange 15 is connected with a connecting rod 18, the tail end of the connecting rod 18 is connected with a filter cylinder 9, the outer side of the filter cylinder 9 is provided with an inlet 20, the position of the inner wall of the shell 3, which is close to the outer side of the filter cylinder 9, is welded with a conical ring 13, the conical ring 13 is arranged so that fluid in the shell 3 enters the filter cylinder 9 from the inlet 20, the lower surface of the filter cylinder 9 is provided with a lower sealing block 11, the bottom of the inner wall of the shell 3 is provided with a groove 12, the lower sealing block 11 is positioned in the groove 12, the groove 12 plays a limiting role on the lower sealing block 11, the upper surface of the filter cylinder 9 is provided with an upper sealing block 19, two sides of the shell 3 are symmetrically welded with connecting flanges 5, the casing 3 enters into the fluid pipeline through two flange 5, and rectifier 6 is installed to the inside one side that deviates from vortex generator 8 of casing 3, and fluid after flowing through rectifier 6 tends to steadily, prevents that the vortex fluid from causing the influence to subsequent check out test set, and casing 3 surface mounting has puigging 4, and puigging 4 plays the effect of making an uproar falls.

When the utility model is used, the shell 3 is connected into a fluid pipeline through the two connecting flanges 5, fluid enters the filter cylinder 9 before flowing through the vortex generator 8, particle impurities contained in the fluid are filtered through the filter cylinder 9, so that abrasion to the inner wall of the shell 3, the surface of the vortex generator 8 and the surface of the detection head 7 is avoided, the fluid passes through the vortex generator 8 and then is detected through the detection head 7, the flow rate of the fluid is displayed through the gauge head 1, when the particle impurities of the filter cylinder 9 are cleaned, bolts between the fixing flange 16 and the sealing flange 15 are loosened, the sealing flange 15 is lifted up to enable the filter cylinder 9 to extend out of the fixing pipe 14, the lower sealing block 11 is positioned in the fixing pipe 14, the pin shaft 21 is inserted into the clamping groove 10, and the lower sealing block 11 is fixed, so that normal conveying of the fluid is not influenced when cleaning is finished, the filter cylinder 9 is inserted into the shell 3, and the sealing flange 15 and the fixing flange 16 are fixedly connected through bolts.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. A precession vortex flowmeter comprising a gauge outfit (1), a housing (3) and a vortex generator (8), characterized in that: connecting rod (2) are installed to casing (3) upper surface intermediate position department, connecting rod (2) are located the inside one end of casing (3) and are connected with detection head (7), connecting rod (2) end-to-end connection has gauge outfit (1), vortex generator (8) are installed to casing (3) inside one side, casing (3) upper surface is close to vortex generator (8) outside position department welding has fixed pipe (14), fixed pipe (14) upper surface welding has flange (16), flange (16) upper surface mounting has flange seal (15), flange seal (15) lower surface connection has connecting rod (18), connecting rod (18) end-to-end connection has filter cartridge (9), filter cartridge (9) outside is equipped with import (20), filter cartridge (9) lower surface mounting has lower sealing block (11), filter cartridge (9) upper surface mounting has sealing block (19).

2. A precession vortex flowmeter according to claim 1, wherein: the bottom of the inner wall of the shell (3) is provided with a groove (12), and the lower sealing block (11) is positioned in the groove (12).

3. A precession vortex flowmeter according to claim 1, wherein: a conical ring (13) is welded on the inner wall of the shell (3) at a position close to the outer side of the filter cylinder (9).

4. A precession vortex flowmeter according to claim 1, wherein: the upper surface of the sealing flange (15) is welded with a handle (17).

5. A precession vortex flowmeter according to claim 1, wherein: the two sides of the fixed pipe (14) are symmetrically provided with sliding grooves (22) near the positions of the upper surface, the two sliding grooves (22) are internally inserted with pin shafts (21), the outer surfaces of the pin shafts (21) are connected with springs (23), the tail ends of the springs (23) are respectively connected with the positions of the two sides of the outer surface of the fixed pipe (14), and the positions of the two sides of the lower sealing block (11) are symmetrically provided with clamping grooves (10).

6. A precession vortex flowmeter according to claim 1, wherein: connecting flanges (5) are symmetrically welded on two sides of the shell (3).

7. A precession vortex flowmeter according to claim 1, wherein: a rectifier (6) is arranged at one side of the inner part of the shell (3) away from the vortex generator (8).

8. A precession vortex flowmeter according to claim 1, wherein: an acoustic insulation layer (4) is arranged on the outer surface of the shell (3).