Vortex flowmeter for pipeline

Abstract

The utility model discloses a vortex flowmeter for a pipeline, which relates to the technical field of vortex flowmeters, and comprises a connecting pipe, the top of the connecting pipe is detachably connected with a mounting shell through a bolt, and the top of the mounting shell is provided with a flow calculation instrument. When the vortex flowmeter assists a pipeline in daily use, in order to improve the anti-backflow effect of the vortex flowmeter on the pipeline in daily use and improve the precision of flow control data in the pipeline by the flowmeter, when the pressure of a water inlet is smaller than that of a water outlet, the backflow of the pipeline can be prevented under the action of the pressure of water through the reaction of extrusion of a spring, and the backflow of the pipeline can be prevented. According to the vortex flowmeter, the anti-backflow barrel is arranged, so that the blocking sliding block fixedly connected with the telescopic rod slides along the inner wall of the anti-backflow barrel, the connecting ball is driven to be inserted into the inner wall of the circulation opening, the circulation opening is effectively sealed, the circulation opening is continuously sealed under the continuous pressure of water pressure on the spring, and the effect that the vortex flowmeter is used for preventing backflow of a pipeline is improved is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vortex flowmeter technical field, concretely is a kind of vortex flowmeter for pipeline. BACKGROUND

[0002] The vortex flowmeter is widely applied to the measurement of various gas flow in petroleum, chemical industry, electric power, metallurgy, city gas supply and other industries, and is the preferred product for oil field and city natural gas transmission and trade measurement, when fluid passes vortex generator consisting of helical blade, fluid is forced to rotate around the shaft of generating body, and vortex is formed, when fluid enters diffusion section, vortex flow is affected by backflow, and starts secondary rotation, and gyroscopic vortex precession phenomenon is formed, the precession frequency is proportional to the size of flow, is not affected by fluid physical property and density, and the secondary rotation precession frequency of fluid measured by detection element is known.

[0003] In the prior art, the vortex flowmeter is improved, and the threaded groove is simple to install and disassemble, but the vortex flowmeter has the problem that when water flow is transported in the pipeline monitored by the vortex flowmeter, the anti-backflow effect of water flow in the pipeline is not high, so that when the pressure at the water outlet reaches that at the water inlet, backflow of water flow occurs, affecting the precision of flow monitoring data of the vortex flowmeter.

[0004] Therefore, in view of the above problems, the vortex flowmeter for pipeline is improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a vortex flowmeter for pipeline to solve the problem that when water flow is transported in the pipeline monitored by the vortex flowmeter, the anti-backflow effect of water flow in the pipeline is not high.

[0006] To achieve the above object, the utility model provides the following technical scheme: a vortex flowmeter for pipeline, including connecting pipe, the top of connecting pipe is detachably connected with installation shell through bolt, the top of installation shell is provided with flow calculator, the inner wall of connecting pipe is fixedly connected with fixed sleeve, the inner wall of fixed sleeve is threadedly connected with anti -reverse flow cylinder, the outer wall of anti -reverse flow cylinder is fixedly connected with outer spiral, the connecting portion of the inner wall of fixed sleeve and outer spiral is provided with inner spiral, the end of anti -reverse flow cylinder is connected with connecting sector, the other end of anti -reverse flow cylinder is provided with flow passageway, the outer wall of connecting sector is fixedly connected with telescopic link, the outer wall of telescopic link is sleeved with the spring of fixed connection with the outer wall of connecting sector, one end of spring is fixedly connected with the plug -in sliding block of fixed connection with one end of telescopic link, the outer wall of plug -in sliding block is fixedly connected with the connecting ball of one side of flow passageway.

[0007] Further, the anti -reverse flow cylinder is connected between the fixed sleeve through the outer spiral and the inner spiral and forms a dismounting structure.

[0008] Further, the anti -reverse flow cylinder is arranged at one side of the vortex flowmeter inside the vortex flowmeter, and the anti -reverse flow cylinder is provided with two groups, and the two groups of anti -reverse flow cylinders are distributed in the same direction.

[0009] Further, the outer wall profile of the connecting sector is in the shape of a fan blade.

[0010] Further, the outer wall profile of the plug -in sliding block is greater than the inner wall profile of the flow passageway, and the outer wall profile of the plug -in sliding block is smaller than the inner wall profile of the anti -reverse flow cylinder.

[0011] Further, the outer wall profile of the connecting ball is smaller than the inner wall profile of the flow passageway.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a plug -in sliding block is arranged, when through the vortex flowmeter auxiliary pipeline carries out daily use, in order to improve the anti -reverse flow effect of vortex flowmeter to pipeline under daily use, improve the precision of flowmeter to the data control of the flow in the pipe, when the pressure of inlet is less than the pressure of outlet, under the pressure of water, through the counteraction of spring being extruded, make the plug -in sliding block of fixed connection with telescopic link slide along the inner wall of anti -reverse flow cylinder, and drive the connecting ball to insert into the inner wall of flow passageway, reach the effect of effective sealing to flow passageway, and reach the effect of continuous sealing to flow passageway under the continuous pressure of spring to water pressure, play the role of improving the anti -reverse flow use of vortex flowmeter to pipeline. ACCURACY

[0014] Figure 1 It is the schematic diagram of the three -dimensional structure for vortex flowmeter;

[0015] Figure 2 This is a three-dimensional structural diagram of a vortex flow meter from another direction.

[0016] Figure 3 A schematic diagram of the internal structure of the anti-backflow cylinder;

[0017] Figure 4 This is a schematic diagram showing the positional distribution of the outer and inner spirals.

[0018] In the diagram: 1. Connecting pipe; 2. Mounting shell; 3. Flow meter; 4. Fixing sleeve; 5. Anti-backflow cylinder; 6. Outer spiral; 7. Inner spiral; 8. Connecting fan block; 9. Flow port; 10. Telescopic rod; 11. Blocking slider; 12. Spring; 13. Connecting ball. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] like Figure 1 - Figure 4 As shown, a vortex flow meter for pipelines includes a connecting pipe 1. The top of the connecting pipe 1 is detachably connected to a mounting shell 2 by bolts. A flow meter 3 is installed on the top of the mounting shell 2. A fixing sleeve 4 is fixedly connected to the inner wall of the connecting pipe 1. An anti-backflow cylinder 5 is threadedly connected to the inner wall of the fixing sleeve 4. An outer spiral 6 is fixedly connected to the outer wall of the anti-backflow cylinder 5. An inner spiral 7 is provided at the connection between the inner wall of the fixing sleeve 4 and the outer spiral 6. A connecting sector block 8 is connected to the end of the anti-backflow cylinder 5. A flow port 9 is provided at the other end of the anti-backflow cylinder 5. A telescopic rod 10 is fixedly connected to the outer wall of the connecting sector block 8. A spring 12 is sleeved on the outer wall of the telescopic rod 10 and fixedly connected to the outer wall of the connecting sector block 8. A blocking slider 11 is fixedly connected to one end of the spring 12 and fixedly connected to one end of the telescopic rod 10. A connecting ball 13 located on one side of the flow port 9 is fixedly connected to the outer wall of the blocking slider 11.

[0022] like Figure 4 As shown, the anti-backflow cylinder 5 forms a disassembly structure with the fixed sleeve 4 through the outer spiral 6 and the inner spiral 7, which facilitates the threaded connection of the outer spiral 6 and the inner spiral 7, and enables convenient disassembly and assembly between the anti-backflow cylinder 5 and the fixed sleeve 4, thereby achieving the effect of adding anti-backflow protection to the vortex flowmeter.

[0023] like Figure 2As shown, the anti-backflow cylinder 5 is arranged on one side of the internal vortex flowmeter, and the anti-backflow cylinder 5 is provided with two groups, and the two groups of anti-backflow cylinders 5 are distributed in the same direction, which is beneficial to the anti-backflow effect of the vortex flowmeter.

[0024] As shown in Figure 3 The outer wall profile of the connecting fan block 8 is fan-shaped, which is beneficial to the convenient and smooth conveying effect of the flow.

[0025] As shown in Figure 3 The outer wall profile of the blocking sliding block 11 is greater than the inner wall profile of the flow-through port 9, and the outer wall profile of the blocking sliding block 11 is smaller than the inner wall profile of the anti-backflow cylinder 5, which is beneficial to the effective anti-backflow effect of the pipeline.

[0026] As shown in Figure 3 The outer wall profile of the connecting ball 13 is smaller than the inner wall profile of the flow-through port 9, which is beneficial to the effective sealing effect of the flow-through port 9.

[0027] Working principle:

[0028] When using the vortex flowmeter auxiliary pipeline for daily use, in order to improve the anti-backflow effect of the vortex flowmeter on the pipeline during daily use, and improve the accuracy of the flowmeter in controlling the flow data in the pipeline, when the pressure of the inlet is less than the pressure of the outlet, the spring 12 will be squeezed under the action of water pressure, and the blocking sliding block 11 fixedly connected with the telescopic rod 10 will slide along the inner wall of the anti-backflow cylinder 5, and the connecting ball 13 will be inserted into the inner wall of the flow-through port 9, so as to achieve the effect of effectively sealing the flow-through port 9, and under the continuous pressure of the spring 12, the effect of continuously sealing the flow-through port 9 is achieved, which improves the anti-backflow effect of the vortex flowmeter on the pipeline.

[0029] The vortex flowmeter is mainly used to solve the problem that the anti-backflow effect of the water flow in the pipeline is not high when the water flow is conveyed in the vortex flowmeter monitoring pipeline, so that when the pressure of the outlet reaches the inlet, the water flow will backflow, which affects the accuracy of the vortex flowmeter monitoring data in the pipeline.

[0030] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.

Claims

1. A vortex flow meter for pipelines, comprising a connecting pipe (1), a mounting housing (2), and a flow meter (3), characterized in that, The top of the connecting pipe (1) is detachably connected to the mounting shell (2) by bolts. The top of the mounting shell (2) is equipped with a flow meter (3). The inner wall of the connecting pipe (1) is fixedly connected to a fixing sleeve (4). The inner wall of the fixing sleeve (4) is threadedly connected to an anti-backflow cylinder (5). The outer wall of the anti-backflow cylinder (5) is fixedly connected to an outer spiral (6). An inner spiral (7) is provided at the connection between the inner wall of the fixing sleeve (4) and the outer spiral (6). The end of the anti-backflow cylinder (5) is connected to a connecting fan block (8). The other end of the anti-backflow cylinder (5) is provided with a flow port (9).

2. A vortex flow meter for pipelines according to claim 1, characterized in that, A telescopic rod (10) is fixedly connected to the outer wall of the connecting fan block (8). A spring (12) is fixedly connected to the outer wall of the telescopic rod (10). A blocking slider (11) is fixedly connected to one end of the telescopic rod (10). A connecting ball (13) located on one side of the flow port (9) is fixedly connected to the outer wall of the blocking slider (11).

3. A vortex flow meter for pipelines according to claim 1, characterized in that, The anti-backflow cylinder (5) is connected to the fixed sleeve (4) by an outer spiral (6) and an inner spiral (7) to form a disassembly structure.

4. A vortex flow meter for pipelines according to claim 1, characterized in that, The anti-backflow cylinder (5) is installed on one side of the vortex flowmeter's internal vortex initiator. There are two sets of the anti-backflow cylinder (5), and the two sets of the anti-backflow cylinder (5) are distributed in the same direction.

5. A vortex flow meter for pipelines according to claim 1, characterized in that, The outer wall of the connecting fan block (8) has a fan-shaped profile.

6. A vortex flow meter for pipelines according to claim 2, characterized in that, The outer wall profile of the blocking slider (11) is larger than the inner wall profile of the flow port (9), and the outer wall profile of the blocking slider (11) is smaller than the inner wall profile of the anti-backflow cylinder (5).

7. A vortex flow meter for pipelines according to claim 2, characterized in that, The outer wall profile of the connecting ball (13) is smaller than the inner wall profile of the flow port (9).

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