CN210833687U

CN210833687U - Small-bore vortex shedding flowmeter

Info

Publication number: CN210833687U
Application number: CN201922134074.5U
Authority: CN
Inventors: 于字会
Original assignee: Weihai Weiliu Measurement And Control Instrument Co ltd
Current assignee: Weihai Weiliu Measurement And Control Instrument Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-06-23
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a small-bore vortex flowmeter, including vortex flowmeter and pipeline casing, seted up pipeline in the pipeline casing, pipeline casing both ends are connected with the flange, have seted up the through-hole on the flange, and flange one side is connected with the boss, and has seted up flutedly on the boss, and flange one side block has the sleeve, and the sleeve lateral wall is connected with first projection and second projection, and in telescopic first projection injects the recess on the boss, in the second projection injects the through-hole of flange, the sleeve has fluid pipeline through threaded connection. The utility model discloses in, close soon through the screw thread between fluid pipeline and the sleeve and be connected, the sleeve is pegged graft on the flange, and the recess on the flange is injected to the first projection on the sleeve promptly, and the through-hole is injected to the second projection, and the buckle and the flange lateral wall block that the second projection outside is connected for sleeve and flange are connected inseparabler, can not drop easily, simple structure, the dismouting of being convenient for.

Description

Small-bore vortex shedding flowmeter

Technical Field

The utility model relates to a vortex flowmeter technical field especially relates to a small-bore vortex flowmeter.

Background

The vortex street flowmeter is researched and produced according to the Karman vortex street principle, and 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 instrument parameters can be stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor, has high reliability and can work within the working temperature range of-20 ℃ to +250 ℃. 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.

The existing vortex shedding flowmeter technology tends to be mature, but partial problems are found in analyzing the existing vortex shedding flowmeter, firstly, the installation process of the vortex shedding flowmeter in the prior art is complex and not easy to popularize, and secondly, when the fluid in the existing vortex shedding flowmeter flows at a high speed, the fluid easily generates large impact force on the vortex shedding flowmeter, so that the service life of the vortex shedding flowmeter is greatly reduced.

Disclosure of Invention

The utility model aims to provide a: in order to solve the problems, the invention provides a small-caliber vortex shedding flowmeter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a small-bore vortex flowmeter, including vortex flowmeter and pipeline casing, pipeline has been seted up in the pipeline casing, pipeline casing both ends are connected with the flange, the through-hole has been seted up on the flange, flange one side is connected with the boss, and set up flutedly on the boss, flange one side block has the sleeve, the sleeve lateral wall is connected with first projection and second projection, telescopic first projection injects in the recess on the boss, the second projection injects in the through-hole of flange, the sleeve has fluid pipeline through threaded connection, fluid pipeline passes through connector intercommunication pipeline.

As a further description of the above technical solution:

the side wall of the second convex column is connected with a buckle which is clamped with the side wall of the flange.

As a further description of the above technical solution:

the connector is internally provided with a sealing ring which is connected with the inner wall of the connector through a spring.

As a further description of the above technical solution:

and filter elements are arranged at two ends in the conveying pipeline.

As a further description of the above technical solution:

the vertical section of the conveying pipeline is in a rectangular shape with different sizes.

As a further description of the above technical solution:

the assembly and the vortex generating body are arranged in the conveying pipeline with the largest inner diameter, the detection head of the vortex shedding flowmeter penetrates through the pipeline shell, and the detection head is positioned on one side of the vortex generating body.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, close soon through the screw thread between fluid pipeline and the sleeve and be connected, the sleeve is pegged graft on the flange, and the recess on the flange is injected to the first projection on the sleeve promptly, and the through-hole is injected to the second projection, and the buckle and the flange lateral wall block that the second projection outside is connected for sleeve and flange are connected inseparabler, can not drop easily, simple structure, the dismouting of being convenient for.

2. The utility model discloses in, increase gradually from outside to inside through pipeline both ends pipe diameter for when fluid flowed in from one end, along with the expansion of pipe diameter, the velocity of flow reduces gradually, thereby makes the impact to the pipeline inner wall reduced, simple structure practices thrift the cost.

Drawings

Fig. 1 is a schematic sectional view of a junction of a small-caliber vortex shedding flowmeter according to the present invention;

fig. 2 is a schematic view of an internal structure of a small-caliber vortex shedding flowmeter according to the present invention;

fig. 3 is an enlarged view of a portion a of a small-bore vortex shedding flowmeter according to the present invention;

fig. 4 is a schematic diagram of a-a of the small-bore vortex shedding flowmeter according to the present invention.

Illustration of the drawings:

1. a groove; 2. a flange; 3. a through hole; 4. a delivery conduit; 5. an assembly; 6. a vortex shedding flowmeter; 7. a vortex generating body; 8. a detection head; 9. a filter element; 10. a connecting port; 11. a seal ring; 12. a spring; 13. a fluid conduit; 14. a sleeve; 15. a first convex column; 16. a second convex column; 17. buckling; 18. a duct housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a small-bore vortex flowmeter comprises a vortex flowmeter 6 and a pipeline shell 18, wherein a conveying pipeline 4 is arranged in the pipeline shell 18, two ends of the pipeline shell 18 are connected with flanges 2, through holes 3 are formed in the flanges 2, one side of each flange 2 is connected with a boss, a groove 1 is formed in each boss, a sleeve 14 is clamped on one side of each flange 2, the side wall of each sleeve 14 is connected with a first convex column 15 and a second convex column 16, the first convex column 15 of each sleeve 14 is inserted into the groove 1 in each boss, the second convex column 16 is inserted into the through holes 3 of the flanges 2, the sleeves 14 and the flanges 2 are connected, the side wall of each second convex column 16 is connected with a buckle 17, the buckles 17 are clamped with the side wall of the flanges 2, the buckles 17 can prevent the sleeves 14 from sliding out of the flanges 2, the connection tightness is enhanced, the installation is convenient, the problem of thread failure of thread connection caused by over-time is avoided at the same, the fluid pipeline 13 is communicated with the conveying pipeline 4 through the connecting port 10, the fluid pipeline 13 is communicated with the conveying pipeline 4 through the sleeve 14 and the flange 2, and fluid enters the conveying pipeline 4.

Specifically, as shown in fig. 1 and 2, a sealing ring 11 is arranged in the connecting port 10, the connecting port 10 is connected with a fluid pipeline 13, the fluid pipeline 13 is attached to the sealing ring 11, the sealing ring 11 is connected with the inner wall of the connecting port 10 through a spring 12, and both the sealing ring 11 and the spring 12 have elasticity, so that the fluid pipeline 13 with different outer diameters can be connected, and the practicability is higher.

Specifically, as shown in fig. 1, the filter elements 9 are installed at two ends in the conveying pipeline 4 to filter impurities mixed in the fluid, so that the conveying pipeline 4 is prevented from being polluted by the impurities, and the detection result is influenced.

Specifically, as shown in fig. 1, the vertical section of the conveying pipeline 4 is a rectangle with different sizes, the conveying pipeline 4 is gradually increased from outside to inside by the pipe diameters of two ends, and when fluid flows in from one end, the flow velocity is gradually reduced along with the expansion of the pipe diameters, so that the impact on the inner wall of the conveying pipeline 4 is reduced.

Specifically, as shown in fig. 1, the assembly 5 and the vortex generator 7 are installed in the conveying pipeline 4 with the largest inner diameter, the detection head 8 of the vortex flowmeter 6 penetrates through the pipeline shell 18, the detection head 8 is located on one side of the vortex generator 7, the vortex generator 7 acts on fluid, after detection is carried out through the detection head 8, a detected signal is transmitted to the vortex flowmeter 6, and finally a detection result is displayed through a digital display screen.

The working principle is as follows: when the fluid pipeline 13 and the conveying pipeline 4 are connected, the fluid pipeline 13 and the sleeve 14 are connected in a screwing way through threads, the sleeve 14 is inserted on the flange 2, namely the first convex column 15 on the sleeve 14 is inserted into the groove 1 on the flange 2, the second convex column 16 is inserted into the through hole 3, the buckle 17 connected with the outer side of the second convex column 16 is clamped with the side wall of the flange 2, so that the sleeve 14 and the flange 2 are connected more tightly and cannot fall off easily, meanwhile, the fluid pipeline 13 is inserted into the connecting port 10 to complete the communication between the fluid pipeline 13 and the conveying pipeline 4, fluid enters the conveying pipeline 4 through the fluid pipeline 13, impurities are filtered through the filter element 9, the flow velocity of the fluid is gradually reduced along with the increase of the pipe diameter of the conveying pipeline 4, the impact of the fluid on the inner wall of the conveying pipeline 4 is reduced, the fluid is detected through the detection head 8 after the action of the vortex generating body 7, the detection head 8 transmits the detected signal to the vortex flow meter, and finally, displaying the detection result through a digital display screen for a user to observe.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A small-caliber vortex shedding flowmeter comprises a vortex shedding flowmeter (6) and a pipeline shell (18), it is characterized in that a conveying pipeline (4) is arranged in the pipeline shell (18), two ends of the pipeline shell (18) are connected with flanges (2), a through hole (3) is arranged on each flange (2), one side of each flange (2) is connected with a boss, a groove (1) is arranged on the lug boss, a sleeve (14) is clamped at one side of the flange (2), the side wall of the sleeve (14) is connected with a first convex column (15) and a second convex column (16), the first convex column (15) of the sleeve (14) is inserted into the groove (1) on the boss, the second convex column (16) is inserted into the through hole (3) of the flange (2), the sleeve (14) is connected with a fluid pipeline (13) through threads, and the fluid pipeline (13) is communicated with the conveying pipeline (4) through a connecting port (10).

2. The small-caliber vortex shedding flowmeter according to claim 1, wherein a buckle (17) is connected to the side wall of the second convex column (16), and the buckle (17) is clamped with the side wall of the flange (2).

3. A small-bore vortex shedding flowmeter according to claim 1, wherein a sealing ring (11) is arranged in the connecting port (10), and the sealing ring (11) is connected with the inner wall of the connecting port (10) through a spring (12).

4. A small-bore vortex shedding flowmeter according to claim 1, wherein the filter elements (9) are mounted at both ends in the conveying pipe (4).

5. A small-bore vortex shedding flowmeter according to claim 1, wherein the vertical cross-section of the conveying pipe (4) is rectangular with different sizes.

6. A small-bore vortex shedding flowmeter according to claim 1, wherein the conveying pipe (4) with the largest inner diameter is provided with a component (5) and a vortex generator (7), the detection head (8) of the vortex shedding flowmeter (6) penetrates through the pipe shell (18), and the detection head (8) is arranged on one side of the vortex generator (7).