A spin-on vortex flowmeter

Abstract

The utility model belongs to flowmeter technical field, concretely is a kind of spin into vortex flowmeter, including flowmeter body, the one end of flowmeter body is detachably installed with connecting pipe, and vibrating mechanism is installed on connecting pipe. The utility model utilizes the flow guide block to the gas that enters flowmeter body and carries out flow guide, and the flow direction of gas is filtered plate bottom by the flow guide of flow guide block, utilizes the impurity contained in gas and is filtered by filter plate, and the impact of gas drives the compression deformation of two spring leaves in connecting pipe simultaneously, to make filter plate present oblique shape and filter gas, dust impurities can fall into collecting box, collect dust impurities, prevent dust impurities in gas and enter flowmeter body with fluid and cause damage to it, prolong the service life of flowmeter body.

Description

Technical Field

[0001] This utility model belongs to the field of flow meter technology, specifically a vortex flow meter. Background Technology

[0002] The vortex flow meter is a velocity-type gas flow meter designed based on the vortex separation principle of fluid mechanics. It is mainly used to measure the volumetric flow rate of single-phase gases such as natural gas and liquefied petroleum gas. Its core structure includes a vortex generator detection probe and a signal processing unit. When the fluid flows through the cylindrical vortex generator, it will form alternating rotating Karman vortices downstream, and the vortex frequency is proportional to the fluid velocity. The detection probe is mostly piezoelectric or ultrasonic, which can capture vortex signals and convert them into electrical pulses. After processing by the signal processing unit, the flow data is directly output. It is widely used in gas metering and process control in petrochemical, urban gas, metallurgy and other fields.

[0003] Existing vortex flow meters typically lack a dust filtration mechanism. When measuring dusty gases such as natural gas and metallurgical tail gas, dust impurities in the gas directly enter the flow meter with the fluid, easily adhering to the surface of the vortex generator, altering its original fluid disturbance structure, leading to a decrease in measurement accuracy, and causing continuous wear on the detection probe, thus shortening the flow meter's service life. Summary of the Invention

[0004] The purpose of this invention is to provide a vortex flowmeter to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: A vortex flow meter includes a flow meter body, one end of which is detachably fitted with a connecting pipe.

[0006] A vibration mechanism is installed on the connecting pipe, and a slot is opened through the pipe wall of the connecting pipe. A collection mechanism is provided in the inner cavity of the slot, and a guide block is fixedly connected to the top of the inner cavity of the connecting pipe.

[0007] The vibration mechanism includes a first connecting rod and a second connecting rod rotatably connected to the inner wall of the connecting pipe. The first connecting rod and the second connecting rod are perpendicular to the gas flow direction of the connecting pipe. A filter plate is fixedly connected to one end of the first connecting rod and the other connecting rod close to each other. When the filter plate rotates to a certain angle, the outer ring surface of the filter plate is in contact with the inner wall of the connecting pipe. Fixing blocks are fixedly connected to both sides of the filter plate. The two fixing blocks are located at the top and bottom of the inner cavity of the connecting pipe, respectively. Spring plates are fixedly connected to the surface of the two fixing blocks. Fixing rods are fixedly connected to the ends of the two spring plates away from the fixing blocks. The two fixing rods are fixedly connected to the inner wall of the connecting pipe.

[0008] Preferably, the vibration mechanism further includes a fixed plate fixedly connected to the outer wall of the connecting pipe, a rotating motor fixedly mounted on the surface of the fixed plate, and a cam fixedly connected to the output end of the rotating motor.

[0009] Preferably, one end of the second connecting rod passes through the wall of the connecting pipe and is fixedly connected to an abutment rod, the surface of which movably abuts against the surface of the cam.

[0010] Preferably, the collection mechanism includes a collection box fixedly fitted into the slot, a baffle fixedly connected to the top side of the collection box near the flow meter body, and a base plate movably inserted into the bottom of the collection box.

[0011] Preferably, the filter plate is located between the external thread and the flow guide block.

[0012] Preferably, the bottom end of the filter plate is located above the collection box.

[0013] Preferably, one end of the flow meter body is provided with an internal thread, and one end of the connecting pipe is provided with an external thread, wherein the external thread and the internal thread are threadedly connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a flow guide block, a filter plate, and spring plates. The flow guide block directs the gas entering the flow meter body, guiding it towards the bottom of the filter plate. The filter plate then filters impurities from the gas. Simultaneously, the impact of the gas compresses and deforms two spring plates inside the connecting pipe, causing the filter plate to tilt and filter the gas. Dust and impurities fall into the collection box, preventing them from entering the flow meter body and causing damage, thus extending the flow meter's service life. After gas transmission ends, the spring plates deform and rebound, causing the filter plate to vibrate. This vibration shakes dust off the filter plate surface into the collection box, making it convenient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the vibration mechanism of this utility model; Figure 4 This is a schematic diagram of the collection mechanism of this utility model.

[0016] In the diagram: 1. Flow meter body; 2. Connecting pipe; 3. External thread; 4. Vibration mechanism; 41. Filter plate; 42. First connecting rod; 43. Second connecting rod; 44. Abutment rod; 45. Fixing plate; 46. Rotating motor; 47. Cam; 48. Fixing block; 49. Spring plate; 401. Fixing rod; 5. Collection mechanism; 51. Collection box; 52. Baffle; 53. Base plate; 6. Groove; 7. Guide block. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-4 As shown, a vortex flow meter includes a flow meter body 1. A connecting pipe 2 is detachably installed at one end of the flow meter body 1. A vibration mechanism 4 is installed on the connecting pipe 2. A slot 6 is opened through the wall of the connecting pipe 2. A collecting mechanism 5 is provided in the inner cavity of the slot 6. A guide block 7 is also fixedly connected to the top of the inner cavity of the connecting pipe 2. One end of the flow meter body 1 has an internal thread, and one end of the connecting pipe 2 has an external thread 3. The external thread 3 is threadedly connected to the internal thread. The vibration mechanism 4 includes a first connecting rod 42 and a second connecting rod 43 rotatably connected to the inner wall of the connecting pipe 2. The first connecting rod 42 and the second connecting rod 43 are... A filter plate 41 is fixedly connected to one end of the first connecting rod 42 and the second connecting rod 43, which are close to each other. When the filter plate 41 is rotated to a certain angle, the outer ring surface of the filter plate 41 is in contact with the inner wall of the connecting pipe 2. Fixing blocks 48 are fixedly connected to both sides of the filter plate 41. The two fixing blocks 48 are located at the top and bottom of the inner cavity of the connecting pipe 2, respectively. Spring plates 49 are fixedly connected to the surface of the two fixing blocks 48. Fixing rods 401 are fixedly connected to the ends of the two spring plates 49 away from the fixing blocks 48, and the two fixing rods 401 are fixedly connected to the inner wall of the connecting pipe 2, respectively.

[0019] In practice, the flow guide block 7 is used to guide the gas entering the flow meter body 1. The gas flows to the bottom of the filter plate 41 through the flow guide block 7. The filter plate 41 filters the impurities contained in the gas. At the same time, the impact of the gas causes the upper and lower spring plates 49 in the connecting pipe 2 to compress and deform, so that the filter plate 41 is tilted to filter the gas. Dust and impurities will fall into the collection box 51 for collection. After the gas transfer is completed, the spring plate 49 will deform and rebound, causing the filter plate 41 to vibrate. The vibration shakes the dust on the surface of the filter plate 41 into the collection box 51, making it convenient to use.

[0020] As a technical optimization of this utility model, the vibration mechanism 4 also includes a fixing plate 45 fixedly connected to the outer wall of the connecting pipe 2. A rotating motor 46 is fixedly installed on the surface of the fixing plate 45. A cam 47 is fixedly connected to the output end of the rotating motor 46. One end of the second connecting rod 43 passes through the pipe wall of the connecting pipe 2 and is fixedly connected to an abutment rod 44. The surface of the abutment rod 44 moves and abuts against the surface of the cam 47.

[0021] In practice, the output end of the rotating motor 46 drives the cam 47 to rotate. The rotating cam 47 abuts against the abutting rod 44, thereby driving the filter plate 41 to rotate and compress the spring plate 49. When the cam 47 rotates away from the abutting rod 44, the spring plate 49 rebounds, causing the filter plate 41 to vibrate, thereby cleaning the dust on the filter plate 41 and enhancing the practicality of the device.

[0022] As a technical optimization of this utility model, the collection mechanism 5 includes a collection box 51 fixedly sleeved at the slot 6. A baffle 52 is fixedly connected to the top side of the collection box 51 near the flow meter body 1. A bottom plate 53 is movably inserted into the bottom of the collection box 51. A filter plate 41 is located between the external thread 3 and the flow guide block 7. The bottom end of the filter plate 41 is located above the collection box 51.

[0023] In practice, the dust falling from the filter plate 41 is collected by the collection box 51, and the dust in the collection box 51 is prevented from leaving the collection box 51 by the action of gas by the baffle 52. The dust in the collection box 51 can be discharged by pulling out the bottom plate 53, which is convenient to use.

[0024] In use, the connecting pipe 2 is installed on the flow meter body 1 using the external thread 3 and the internal thread. The other end of the flow meter body 1 and the connecting pipe 2 are installed on the gas transmission pipeline. The flow guide block 7 guides the gas entering the flow meter body 1. The gas flows to the bottom of the filter plate 41 through the flow guide block 7. The filter plate 41 filters the impurities contained in the gas. At the same time, the impact of the gas causes the upper and lower spring plates 49 inside the connecting pipe 2 to compress and deform, so that the filter plate 41 is tilted to filter the gas. Dust and impurities fall into the collection box 51. The spring plates 49 will deform and rebound, causing the filter plate 41 to vibrate. The vibration shakes the dust on the surface of the filter plate 41 into the collection box 51, which is convenient to use.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vortex flow meter, comprising a flow meter body (1), characterized in that, A connecting pipe (2) is detachably installed at one end of the flow meter body (1); A vibration mechanism (4) is installed on the connecting pipe (2). A slot (6) is opened through the pipe wall of the connecting pipe (2). A collection mechanism (5) is provided in the inner cavity of the slot (6). A guide block (7) is also fixedly connected to the top of the inner cavity of the connecting pipe (2). The vibration mechanism (4) includes a first connecting rod (42) and a second connecting rod (43) rotatably connected to the inner wall of the connecting pipe (2). The first connecting rod (42) and the second connecting rod (43) are perpendicular to the gas flow direction of the connecting pipe (2). The ends of the first connecting rod (42) and the second connecting rod (43) that are close to each other are fixedly connected to a filter plate (41). When the filter plate (41) is rotated to a certain angle, the outer ring surface of the filter plate (41) is in contact with the inner wall of the connecting pipe (2). The two side walls of the filter plate (41) are fixedly connected to fixing blocks (48). The two fixing blocks (48) are located at the top and bottom of the inner cavity of the connecting pipe (2). The surfaces of the two fixing blocks (48) are fixedly connected to spring plates (49). The ends of the two spring plates (49) that are away from the fixing blocks (48) are fixedly connected to fixing rods (401). The two fixing rods (401) are fixedly connected to the inner wall of the connecting pipe (2).

2. The vortex flowmeter according to claim 1, characterized in that, The vibration mechanism (4) further includes a fixing plate (45) fixedly connected to the outer wall of the connecting pipe (2), a rotating motor (46) is fixedly installed on the surface of the fixing plate (45), and a cam (47) is fixedly connected to the output end of the rotating motor (46).

3. A vortex flowmeter according to claim 2, characterized in that, One end of the second connecting rod (43) passes through the wall of the connecting pipe (2) and is fixedly connected to an abutment rod (44), the surface of the abutment rod (44) being in contact with the surface of the cam (47).

4. A vortex flowmeter according to claim 1, characterized in that, The collection mechanism (5) includes a collection box (51) fixedly sleeved at the slot (6), a baffle (52) is fixedly connected to the top side of the collection box (51) near the flow meter body (1), and a bottom plate (53) is movably inserted into the bottom of the collection box (51).

5. A vortex flowmeter according to claim 4, characterized in that, The filter plate (41) is located between the external thread (3) and the guide block (7).

6. A vortex flowmeter according to claim 5, characterized in that, The bottom end of the filter plate (41) is located above the collection box (51).

7. A vortex flowmeter according to claim 1, characterized in that, One end of the flow meter body (1) is provided with an internal thread, and one end of the connecting pipe (2) is provided with an external thread (3), and the external thread (3) is threadedly connected to the internal thread.

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