Vortex flowmeter with pressure compensation

Abstract

This utility model discloses a pressure-compensated vortex flow meter, relating to the field of vortex flow meter technology. It includes a vortex flow meter body and two tubes. A first annular plate is fixedly connected to both ends of the vortex flow meter body, and a second annular plate is fixedly connected to one end of each of the two tubes. A rubber seal is provided between each of the two first annular plates and the corresponding second annular plate. Multiple sliding holes are formed on one side of each second annular plate, and a slider is slidably disposed inside each sliding hole. A fixing hole is formed at one end of each slider, and a fixing mechanism is disposed inside each fixing hole. This utility model utilizes a first spring of a rebound mechanism to continuously apply thrust, ensuring that the first and second annular plates always tightly press against the rubber seal. Even if the seal experiences slight wear due to vibration or wear, the elastic potential energy of the spring can immediately compensate for the pressure, ensuring stable pressure on the sealing surface.

Description

Technical Field

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

[0002] Vortex flow meters are mainly used for measuring the flow rate of fluids in industrial pipelines, such as gases, liquids, and steam. They are characterized by low pressure loss, a wide measuring range, and high accuracy. However, when measuring high-temperature fluids, the pipeline being tested and the vortex flow meter should be insulated to ensure the stable and reliable operation of the internal electronic components of the vortex flow meter.

[0003] Among them, a vortex flow meter with announcement number CN220772261U includes a connecting pipe body for connecting the interfaces of two pipes. A protective pipe is installed on the connecting pipe body, and a sleeve is provided inside the protective pipe. One end of the sleeve extends out of the top of the protective pipe and connects with the vortex flow meter, and the other end extends into the inner cavity of the connecting pipe body.

[0004] However, existing vortex flow meters are usually equipped with rubber seals when connected to pipelines. These rubber seals can wear down due to pipeline vibration during daily use, leading to pipeline leaks and affecting the detection performance of the vortex flow meter. Utility Model Content

[0005] In view of the problems existing in the current vortex flow meter, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a vortex flow meter with pressure compensation, which solves the problem that existing vortex flow meters usually install rubber seals when connected to pipelines. However, these rubber seals are worn due to pipeline vibration during daily use, which leads to pipeline leakage and affects the detection effect of the vortex flow meter.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pressure-compensated vortex flow meter includes a vortex flow meter body and two tubes. A first annular plate is fixedly connected to both ends of the vortex flow meter body, and a second annular plate is fixedly connected to one end of each of the two tubes. A rubber seal is provided between each of the two first annular plates and the corresponding second annular plate. Multiple sliding holes are formed on one side of each second annular plate, and a slider is slidably disposed inside each sliding hole. A fixing hole is formed at one end of each slider, and a fixing mechanism is provided inside each fixing hole. Each slider is fixed by a corresponding fixing mechanism. A cavity is formed inside each slider, and a spring-loaded mechanism is provided inside each cavity. Insert rods are fixedly connected to one end of each of the two second annular plates. Multiple insertion holes are formed on one side of each first annular plate, and each insertion rod is inserted into a corresponding insertion hole. A limit mechanism is provided on one side of each insertion hole, and each insertion rod is fixed by a corresponding limit mechanism.

[0009] Preferably, the fixing mechanism includes multiple lead screws, multiple first trapezoidal blocks, multiple second trapezoidal blocks, multiple T-blocks, and multiple knobs. Each fixing hole has an internal threaded hole on one side. Each lead screw is respectively disposed inside the corresponding internal threaded hole. Each second trapezoidal block is slidably disposed inside the corresponding fixing hole. Each second trapezoidal block has a T-slot on its inclined surface. Each T-block is slidably disposed inside the corresponding T-slot. Each first trapezoidal block is fixedly connected between the bottom two T-blocks. Each lead screw is rotatably connected to one side of the corresponding first trapezoidal block.

[0010] Preferably, the rebound mechanism includes multiple stops, multiple first connecting rods, and multiple first springs. Each stop is slidably disposed inside a corresponding cavity. Each first connecting rod is fixedly connected to one side of a corresponding stop. One end of each first connecting rod passes through one side of the cavity and is fixedly connected to one side of the bottom first annular plate. The first spring is slidably sleeved on the rod wall of the first connecting rod.

[0011] Preferably, the limiting mechanism includes multiple trapezoidal limiting blocks, multiple second connecting rods, multiple pull rings, and multiple second springs. Each of the insertion holes has a limiting groove on its side wall. Each trapezoidal limiting block is slidably disposed inside the corresponding limiting groove. One end of each second connecting rod is fixed to one side of the corresponding trapezoidal limiting block. The upper end of each second connecting rod passes through the upper surface of the corresponding limiting groove and is fixedly connected to the corresponding pull ring. Each second spring is slidably sleeved on the tube wall of the corresponding second connecting rod.

[0012] Preferably, two fixing grooves are symmetrically formed on one side of each of the two sliding holes, and each fixing groove is matched with the corresponding first trapezoidal block.

[0013] Preferably, each of the inserts has a triangular groove on its wall, and each triangular groove is matched with a corresponding trapezoidal limiting block.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. In this utility model, the first spring of the rebound mechanism continuously applies a pushing force, so that the first annular plate and the second annular plate always tightly squeeze the rubber seal. Even if the seal is slightly damaged due to vibration or wear, the elastic potential energy of the spring can compensate for the pressure in time, ensuring the pressure on the sealing surface is stable.

[0016] 2. This utility model uses a lead screw to drive a trapezoidal block in linkage, so that the slider and the sliding hole form a rigid lock. The trapezoidal limiting block of the limiting mechanism is embedded in the triangular groove of the insertion rod to achieve dual fixation of "elastic compensation + mechanical locking". Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0020] Figure 3 For the present utility model Figure 2 A three-dimensional diagram showing the connection between the first trapezoidal block, the second trapezoidal block, and the T-shaped block.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Flowmeter body, 2. First annular plate, 3. Second annular plate, 4. Rubber seal, 5. Slider, 6. Stop block, 7. Insert rod, 8. Lead screw, 9. First trapezoidal block, 10. Second trapezoidal block, 11. T-block, 12. Knob, 13. First connecting rod, 14. First spring, 15. Trapezoidal limit block, 16. Second connecting rod, 17. Pull ring, 18. Second spring, 19. Pipe body. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a vortex flow meter with pressure compensation.

[0025] This utility model provides, for example Figure 1-3 The pressure-compensated vortex flowmeter shown includes a vortex flowmeter body 1 and two tubes 19. A first annular plate 2 is fixedly connected to both ends of the vortex flowmeter body 1, and a second annular plate 3 is fixedly connected to one end of each of the two tubes 19. Rubber seals 4 are provided between the two first annular plates 2 and the corresponding second annular plates 3. Multiple sliding holes are opened on one side of each second annular plate 3, and a slider 5 is slidably disposed inside each sliding hole. A fixing hole is opened at one end of each slider 5, and a fixing mechanism is provided inside each fixing hole. Each slider 5 is fixed by a corresponding fixing mechanism. A cavity is opened inside each slider 5, and a spring-loaded mechanism is provided inside each cavity. Insert rods 7 are fixedly connected to one end of each of the two second annular plates 3. Multiple insertion holes are opened on one side of each first annular plate 2, and each insertion rod 7 is inserted into the corresponding insertion hole. A limit mechanism is provided on one side of each insertion hole, and each insertion rod 7 is fixed by a corresponding limit mechanism.

[0026] When the vortex flow meter body 1 is connected to the pipe body 19, the rubber seal 4 between the first annular plate 2 and the second annular plate 3 is squeezed to form an initial seal. When the rubber seal 4 wears, the rebound mechanism can be used to press the rubber seal 4 tight, thereby improving the sealing performance.

[0027] In order to compensate for stress, such as Figure 1-3 As shown, the fixing mechanism includes multiple lead screws 8, multiple first trapezoidal blocks 9, multiple second trapezoidal blocks 10, multiple T-shaped blocks 11, and multiple knobs 12. Each fixing hole has an internal threaded hole on one side. Each lead screw 8 is respectively disposed inside the corresponding internal threaded hole. Each second trapezoidal block 10 is slidably disposed inside the corresponding fixing hole. Each second trapezoidal block 10 has a T-shaped groove on its inclined surface. Each T-shaped block 11 is slidably disposed inside the corresponding T-shaped groove. Each first trapezoidal block 9 is fixedly connected between the two bottom T-shaped blocks 11. Each lead screw 8 is rotatably connected to... The rebound mechanism, attached to one side of the corresponding first trapezoidal block 9, includes multiple stops 6, multiple first connecting rods 13, and multiple first springs 14. Each stop 6 is slidably disposed inside the corresponding cavity. Each first connecting rod 13 is fixedly connected to one side of the corresponding stop 6. One end of each first connecting rod 13 passes through one side of the cavity and is fixedly connected to one side of the bottom first annular plate 2. The first spring 14 is slidably sleeved on the rod wall of the first connecting rod 13. Two fixing grooves are symmetrically opened on one side of each of the two sliding holes, and each fixing groove matches the corresponding first trapezoidal block 9.

[0028] Rotating knob 12 drives lead screw 8 to rotate, and lead screw pushes first trapezoidal block 9 to move. Its inclined surface drives second trapezoidal block 10 to slide along fixed hole through T-shaped block 11, so that first trapezoidal block is embedded in fixed groove of sliding hole and locking slider 5. At this time, first spring 14 of rebound mechanism is in compressed state, and continuous thrust is applied to slider through first connecting rod 13 and stop block 6, driving second annular plate to move closer to first annular plate, so that rubber seal always maintains stable compression, compensating for sealing pressure loss caused by vibration or wear.

[0029] In order to fix the first annular plate and the second annular plate, such as Figure 1-2 As shown, the limiting mechanism includes multiple trapezoidal limiting blocks 15, multiple second connecting rods 16, multiple pull rings 17, and multiple second springs 18. Each insertion hole has a limiting groove on its side wall. Each trapezoidal limiting block 15 is slidably disposed inside the corresponding limiting groove. One end of each second connecting rod 16 is fixed to one side of the corresponding trapezoidal limiting block 15. The upper end of each second connecting rod 16 passes through the upper surface of the corresponding limiting groove and is fixedly connected to the corresponding pull ring 17. Each second spring 18 is slidably sleeved on the tube wall of the corresponding second connecting rod 16. Each insertion rod 7 has a triangular groove on its rod wall, and each triangular groove matches the corresponding trapezoidal limiting block 15.

[0030] When the pressure is compensated, each insert rod 7 moves and then squeezes the corresponding trapezoidal limiting block 15. Then, the rebound force of the second spring 18 can move the two trapezoidal limiting blocks 15 into the interior of the corresponding triangular grooves, thereby fixing the insert rod 7, that is, fixing the first annular plate and the second annular plate.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vortex flowmeter with pressure compensation comprising a vortex flowmeter body (1) and two pipe bodies (19), characterized in that Both ends of the vortex flowmeter body (1) are fixedly connected to a first annular plate (2), and one end of each of the two tubes (19) is fixedly connected to a second annular plate (3). A rubber seal (4) is provided between the two first annular plates (2) and the corresponding second annular plates (3). A plurality of sliding holes are provided on one side of the second annular plate (3). A slider (5) is slidably provided inside each sliding hole. A fixing hole is provided at one end of each slider (5). A fixing mechanism is provided inside each fixing hole. Each slider (5) is fixed by a corresponding fixing mechanism. A cavity is provided inside each slider (5). A spring mechanism is provided inside each cavity. A rod (7) is fixedly connected to one end of each of the two second annular plates (3). A plurality of insertion holes are provided on one side of each first annular plate (2). Each rod (7) is inserted into the corresponding insertion hole. A limit mechanism is provided on one side of each insertion hole. Each rod (7) is fixed by a corresponding limit mechanism.

2. The vortex flow meter with pressure compensation according to claim 1, characterized in that, The fixing mechanism includes multiple lead screws (8), multiple first trapezoidal blocks (9), multiple second trapezoidal blocks (10), multiple T-shaped blocks (11), and multiple knobs (12). Each fixing hole has an internal threaded hole on one side. Each lead screw (8) is respectively disposed inside the corresponding internal threaded hole. Each second trapezoidal block (10) is respectively slidably disposed inside the corresponding fixing hole. Each second trapezoidal block (10) has a T-shaped groove on its inclined surface. Each T-shaped block (11) is respectively slidably disposed inside the corresponding T-shaped groove. Each first trapezoidal block (9) is respectively fixedly connected between the two bottom T-shaped blocks (11). Each lead screw (8) is respectively rotatably connected to one side of the corresponding first trapezoidal block (9).

3. The vortex flow meter with pressure compensation according to claim 1, characterized in that, The rebound mechanism includes multiple stops (6), multiple first connecting rods (13) and multiple first springs (14). Each stop (6) is slidably disposed inside the corresponding cavity. Each first connecting rod (13) is fixedly connected to one side of the corresponding stop (6). One end of each first connecting rod (13) passes through one side of the cavity and is fixedly connected to one side of the bottom first annular plate (2). The first spring (14) is slidably sleeved on the rod wall of the first connecting rod (13).

4. The vortex flow meter with pressure compensation according to claim 1, characterized in that, The limiting mechanism includes multiple trapezoidal limiting blocks (15), multiple second connecting rods (16), multiple pull rings (17), and multiple second springs (18). Each of the insertion holes has a limiting groove on its side wall. Each trapezoidal limiting block (15) is slidably disposed inside the corresponding limiting groove. One end of each second connecting rod (16) is fixed to one side of the corresponding trapezoidal limiting block (15). The upper end of each second connecting rod (16) passes through the upper surface of the corresponding limiting groove and is fixedly connected to the corresponding pull ring (17). Each second spring (18) is slidably sleeved on the tube wall of the corresponding second connecting rod (16).

5. The vortex flow meter with pressure compensation according to claim 1, characterized in that, Two fixing grooves are symmetrically opened on one side of each of the two sliding holes, and each fixing groove is matched with the corresponding first trapezoidal block (9).

6. The vortex flow meter with pressure compensation according to claim 1, characterized in that, Each of the inserts (7) has a triangular groove on its wall, and each triangular groove is matched with a corresponding trapezoidal limiting block (15).

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