Improved precession vortex flowmeter

Abstract

The utility model relates to the technical field of flow meters, and discloses an improved precession vortex flow meter which comprises a through pipe, a cylinder is installed in the through pipe and is a single-side closed cylinder, a plurality of filtering holes and an installation hole are formed in the outer surface of the cylinder, a defoaming assembly is installed in the installation hole, and the filtering holes are communicated with the installation hole. And the defoaming assembly comprises a rotating shaft, a first bearing, a second bearing, spiral blades and connecting plates, the first bearing is mounted in the mounting hole, the multiple spiral blades are arranged on the outer surface of the rotating shaft, the connecting plates are arranged on the outer surface of the second bearing, and the two connecting plates are fixed and symmetrically arranged. According to the vortex precession flowmeter, the barrel and the defoaming assembly are used in cooperation, media flowing into the through pipe can be filtered firstly, the filtered media are defoamed through the spiral blade and the defoaming needle, the influence on the measurement result of the vortex precession flowmeter due to bubbles existing in the media is reduced, and the vortex precession flowmeter has good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and particularly to an improved swirl flow meter. Background Technique

[0002] The swirl flow meter adopts advanced microprocessing technology and has the advantages of strong functions, wide flow range, simple operation and maintenance, and convenient installation and use. Its working principle is as follows: When the fluid passes through the swirl generator composed of spiral blades, the fluid is forced to rotate violently around the axis of the body, forming a swirl. When the fluid enters the diffuser section, the swirl flow is affected by the backflow and starts to rotate secondly, forming a gyroscopic eddy precession phenomenon. The precession frequency is proportional to the flow rate and is not affected by the physical properties and density of the fluid. The detection element measures the secondary rotation precession frequency of the fluid.

[0003] The utility model patent application document with the publication number of "CN218628445U" discloses a swirl flow meter, which mainly consists of a shell, a flow display instrument, a swirl generator, a swirl eliminator, a filter and a maintenance cover. In this technical solution, a filter groove is also opened inside one end of the shell, and a filter is clamped inside the filter groove, so that gas or liquid can be filtered to prevent large particles from blocking the swirl generator and affecting the swirl generation effect. Moreover, a limit seat is installed at the upper end of the filter groove, and a maintenance cover is installed outside the limit seat, which is convenient for disassembling, installing and positioning the filter, and the disassembly, installation and maintenance are convenient and fast.

[0004] The swirl flow meter disclosed in the above document has the following defects: The swirl flow meter is installed inside the shell. When the passing medium contains bubbles and flows inside the shell, when the bubbles rub against the electrodes of the flow meter, the entire electrodes will be covered, causing the signal input circuit of the flow meter to open instantaneously, resulting in fluctuations in the output signal, thereby affecting the measurement result and causing deviation.

[0005] It can be seen from this that the existing swirl flow meter does not have a structure for eliminating bubbles in the medium, and it is necessary to improve the existing deficiencies to provide an improved swirl flow meter. Content of the Utility Model

[0006] The purpose of the utility model is to provide an improved swirl flow meter to solve the problems put forward in the above background technique.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to an improved swirling vortex flowmeter, which comprises a through pipe. A cylinder body is installed inside the through pipe. The cylinder body is a single-side closed cylinder. A plurality of filter holes and an installation hole are formed on the outer surface of the cylinder body. An anti-foaming component is installed inside the installation hole. The anti-foaming component comprises a rotating shaft, a first bearing, a second bearing, spiral blades and a connecting plate. The first bearing is installed inside the installation hole. A plurality of spiral blades are arranged on the outer surface of the rotating shaft. A connecting plate is arranged on the outer surface of the second bearing. The two connecting plates are fixed and symmetrically arranged. The other end of the connecting plate is installed on the inner surface of the through pipe. The rotating shafts are installed at the axles of the first bearing and the second bearing respectively. A plurality of anti-foaming needles are arranged on the outer surface of the spiral blades.

[0009] Furthermore, a plurality of connecting ear blocks are arranged at both ends of the through pipe. A first bolt is installed inside the connecting ear block. The through pipe is installed with a connecting flange through the first bolt.

[0010] Furthermore, a connecting pipe is arranged on the outer surface of the through pipe. A connecting seat is arranged at the end of the connecting pipe far away from the through pipe. A second bolt is installed inside the connecting seat. The through pipe is installed with a flow display instrument through the second bolt. The output end of the flow display instrument extends into the through pipe.

[0011] Furthermore, two installation pipes are fixed and symmetrically arranged on the outer surface of the through pipe. A fixing component is arranged inside the installation pipe. A limiting groove is formed on the outer surface of the cylinder body. One end of the limiting groove penetrates through the cylinder body and extends outwards. A limiting hole is formed on the inner surface of the limiting groove. The limiting groove and the limiting hole are both fixed and symmetrically arranged in two.

[0012] Furthermore, the fixing component comprises a pulling block, a connecting rod, a sliding plate, a spring, a limiting block and a limiting post. A connecting rod is arranged at one end of the pulling block. A sliding plate is arranged on the outer surface of the connecting rod. A limiting block is arranged at the end of the connecting rod far away from the pulling block. A limiting post is arranged at the end of the limiting block far away from the connecting rod. A spring is arranged at one end of the sliding plate. The other end of the spring is arranged on the outer surface of the through pipe. The sliding plate is slidably connected inside the installation pipe. The limiting block is installed inside the limiting groove. The limiting post is installed inside the limiting hole.

[0013] Furthermore, a sliding groove is formed on the inner surface of the installation pipe. A sliding block is arranged on the outer surface of the sliding plate. The sliding block is slidably connected inside the sliding groove. External threads are formed on the outer surface of the installation pipe. The installation pipe is installed with a cover body through the external threads. An abutting block is arranged on the lower surface of the cover body. The outer surface of the abutting block abuts against the outer surface of the pulling block. Anti-slip stripes are formed on the outer surface of the pulling block.

[0014] The utility model has the following beneficial effects:

[0015] (1) By the combined use of the cylinder body and the defoaming component provided in the utility model, the medium flowing into the inner part of the through pipe can be filtered first, and the filtered medium is then defoamed by the spiral blades and the defoaming needles, reducing the influence on the measurement result of the swirling vortex flowmeter due to the existence of bubbles in the medium, and having good practicability.

[0016] (2) By the fixed component provided in the utility model, the cylinder body can be fixedly installed inside the through pipe. At the same time, pulling the pull block outward makes the pull block drive the sliding plate to move outward, stretching the spring. Meanwhile, the connecting rod drives the limiting block to disengage from the limiting groove and the limiting hole, separating the cylinder body from the through pipe, which is convenient for cleaning and replacing the cylinder body.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is the exploded view of the overall structure of the utility model;

[0021] Figure 3 It is the sectional view of the overall structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of the structure at A in it;

[0023] Figure 5 It is the schematic diagram of the structure of the cylinder body and the defoaming component of the utility model;

[0024] Figure 6 It is the schematic diagram of the structure of the fixed component of the utility model;

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] In the figure: 1. Through pipe; 101. Connecting ear block; 102. Connecting pipe; 103. Connecting seat; 104. Installation pipe; 10401. Slide groove; 2. Cylinder body; 201. Filter hole; 202. Installation hole; 203. Limit groove; 204. Limit hole; 3. Defoaming component; 301. Rotating shaft; 302. First bearing; 303. Second bearing; 304. Spiral blade; 305. Connecting plate; 4. First bolt; 5. Connecting flange; 6. Fixing component; 601. Pulling block; 602. Connecting rod; 603. Slide plate; 60301. Slide block; 604. Spring; 605. Limit block; 606. Limit post; 7. Second bolt; 8. Flow display instrument; 9. Cover body; 901. Abutting block. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 - Figure 6 As shown in the figure, the present invention is an improved swirl flowmeter, including a through pipe 1. A cylinder body 2 is installed inside the through pipe 1. The cylinder body 2 is a single-sided closed cylinder. A plurality of filter holes 201 and an installation hole 202 are provided on the outer surface of the cylinder body 2. A defoaming component 3 is installed inside the installation hole 202. The defoaming component 3 includes a rotating shaft 301, a first bearing 302, a second bearing 303, a spiral blade 304 and a connecting plate 305. The first bearing 302 is installed inside the installation hole 202. A plurality of spiral blades 304 are provided on the outer surface of the rotating shaft 301. A connecting plate 305 is provided on the outer surface of the second bearing 303. The connecting plates 305 are fixed into two and symmetrically arranged. The other end of the connecting plate 305 is installed on the inner surface of the through pipe 1. The rotating shaft 301 is installed at the center of the first bearing 302 and the second bearing 303. A plurality of defoaming needles are provided on the outer surface of the spiral blade 304.

[0029] A plurality of connecting ear blocks 101 are provided at both ends of the through pipe 1. A first bolt 4 is installed inside the connecting ear block 101. The through pipe 1 is installed with a connecting flange 5 through the first bolt 4.

[0030] A connecting pipe 102 is provided on the outer surface of the through pipe 1. A connecting seat 103 is provided at the end of the connecting pipe 102 away from the through pipe 1. A second bolt 7 is installed inside the connecting seat 103. The through pipe 1 is installed with a flow display instrument 8 through the second bolt 7. The output end of the flow display instrument 8 extends into the through pipe 1.

[0031] The outer surface of the through pipe 1 is provided with mounting pipes 104. There are two fixed and symmetrically arranged mounting pipes 104. A fixing component 6 is arranged inside the mounting pipe 104. A limiting groove 203 is opened on the outer surface of the cylinder body 2. One end of the limiting groove 203 penetrates through the cylinder body 2 and extends outward. A limiting hole 204 is opened on the inner surface of the limiting groove 203. Both the limiting groove 203 and the limiting hole 204 are fixed in two and symmetrically arranged.

[0032] The fixing component 6 includes a pulling block 601, a connecting rod 602, a sliding plate 603, a spring 604, a limiting block 605 and a limiting post 606. One end of the pulling block 601 is provided with a connecting rod 602. A sliding plate 603 is arranged on the outer surface of the connecting rod 602. One end of the connecting rod 602 away from the pulling block 601 is provided with a limiting block 605. One end of the limiting block 605 away from the connecting rod 602 is provided with a limiting post 606. One end of the sliding plate 603 is provided with a spring 604. The other end of the spring 604 is arranged on the outer surface of the through pipe 1. The sliding plate 603 is slidably connected inside the mounting pipe 104. The limiting block 605 is installed inside the limiting groove 203, and the limiting post 606 is installed inside the limiting hole 204.

[0033] A chute 10401 is opened on the inner surface of the mounting pipe 104. A slider 60301 is arranged on the outer surface of the sliding plate 603. The slider 60301 is slidably connected inside the chute 10401. External threads are opened on the outer surface of the mounting pipe 104. A cover body 9 is installed on the mounting pipe 104 through the external threads. A butting block 901 is arranged on the lower surface of the cover body 9. The outer surface of the butting block 901 abuts against the outer surface of the pulling block 601. Anti-slip stripes are opened on the outer surface of the pulling block 601.

[0034] During use, first install the external water inlet pipe on the connecting flange 5 close to the side of the cylinder body 2, then install the external water outlet pipe on the other connecting flange 5, and then open the water valve. The medium flows into the inside of the through pipe 1 through the water inlet pipe. The medium first passes through the filtering holes 201 opened in the cylinder body 2 for filtering and screening. When the filtered medium passes through the spiral blade 304, it drives the spiral blade 304 to rotate, and at the same time makes the spiral blade 304 and the defoaming needle perform defoaming treatment on the bubbles in the medium. The defoamed medium is discharged through the water outlet pipe, reducing the influence on the measurement result of the swirling vortex flowmeter due to the presence of bubbles in the medium. When it is necessary to replace the cylinder body 2, rotate the cover body 9 counterclockwise to separate the cover body 9 from the mounting pipe 104, and then pull the pulling block 601 outward, so that the pulling block 601 drives the sliding plate 603 to move outward, stretching the spring 604. At the same time, the connecting rod 602 drives the limiting block 605 and the limiting post 606 to disengage from the inside of the limiting groove 203 and the limiting hole 204, separating the cylinder body 2 from the through pipe 1. At this time, the cylinder body 2 can be taken out from the inside of the through pipe 1, facilitating the cleaning and replacement of the cylinder body 2.

[0035] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An improved swirl flowmeter, comprising a through pipe (1), characterized in that: Inside the through pipe (1), a cylinder body (2) is installed. The cylinder body (2) is a single-sided closed cylinder. A number of filter holes (201) and an installation hole (202) are formed on the outer surface of the cylinder body (2). An anti-foaming component (3) is installed inside the installation hole (202). The anti-foaming component (3) includes a rotating shaft (301), a first bearing (302), a second bearing (303), a spiral blade (304) and a connecting plate (305). The first bearing (302) is installed inside the installation hole (202). A number of spiral blades (304) are provided on the outer surface of the rotating shaft (301). A connecting plate (305) is provided on the outer surface of the second bearing (303). The connecting plates (305) are fixed into two and are symmetrically arranged. The other end of the connecting plate (305) is installed on the inner surface of the through pipe (1). The rotating shaft (301) is installed at the axis of both the first bearing (302) and the second bearing (303). A number of anti-foaming needles are provided on the outer surface of the spiral blade (304).

2. The improved swirl flowmeter according to claim 1, wherein: A number of connecting ear blocks (101) are provided at both ends of the through pipe (1). A first bolt (4) is installed inside the connecting ear block (101). The through pipe (1) is installed with a connecting flange (5) through the first bolt (4).

3. An improved swirl flowmeter according to claim 1, characterized in that: A connecting pipe (102) is provided on the outer surface of the through pipe (1). A connecting seat (103) is provided at the end of the connecting pipe (102) away from the through pipe (1). A second bolt (7) is installed inside the connecting seat (103). The through pipe (1) is installed with a flow display instrument (8) through the second bolt (7). The output end of the flow display instrument (8) extends into the through pipe (1).

4. An improved precession vortex flowmeter according to claim 1, characterized in that: An installation pipe (104) is provided on the outer surface of the through pipe (1). The installation pipes (104) are fixed into two and are symmetrically arranged. A fixing component (6) is arranged inside the installation pipe (104). A limiting groove (203) is formed on the outer surface of the cylinder body (2). One end of the limiting groove (203) penetrates through the cylinder body (2) and extends outwards. A limiting hole (204) is formed on the inner surface of the limiting groove (203). The limiting grooves (203) and the limiting holes (204) are both fixed into two and are symmetrically arranged.

5. An improved precession vortex flowmeter according to claim 4, characterized in that: The fixing component (6) includes a pulling block (601), a connecting rod (602), a sliding plate (603), a spring (604), a limiting block (605) and a limiting post (606). One end of the pulling block (601) is provided with a connecting rod (602). The outer surface of the connecting rod (602) is provided with a sliding plate (603). One end of the connecting rod (602) away from the pulling block (601) is provided with a limiting block (605). One end of the limiting block (605) away from the connecting rod (602) is provided with a limiting post (606). One end of the sliding plate (603) is provided with a spring (604). The other end of the spring (604) is arranged on the outer surface of the through pipe (1). The sliding plate (603) is slidably connected to the inside of the installation pipe (104). The limiting block (605) is installed inside the limiting groove (203). The limiting post (606) is installed inside the limiting hole (204).

6. An improved swirl flowmeter according to claim 5, characterized in that: A sliding groove (10401) is formed on the inner surface of the installation pipe (104). A sliding block (60301) is arranged on the outer surface of the sliding plate (603). The sliding block (60301) is slidably connected to the inside of the sliding groove (10401). External threads are formed on the outer surface of the installation pipe (104). A cover body (9) is installed on the installation pipe (104) through the external threads. A butting block (901) is arranged on the lower surface of the cover body (9). The outer surface of the butting block (901) abuts against the outer surface of the pulling block (601). Anti-slip stripes are formed on the outer surface of the pulling block (601).

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