CN218035161U - A Large Diameter Vortex Flowmeter - Google Patents

Abstract

The utility model relates to a large-diameter vortex flowmeter, which includes a test tube, a vortex sounding body is fixedly installed on the inner wall of the test tube, and an opening extending to the right side of the vortex sounding body is provided inside the vortex sounding body. Inner cavity, one side of the vortex street sounding body is provided with a movable measurement assembly, the movable measurement assembly includes a mounting plate, the internal thread of the mounting plate is installed with a mounting rod threadedly connected with the vortex street sounding body, the mounting The inside of the board is movably installed with a movable rod transversely penetrating through the mounting board, and the left end of the movable rod is fixedly mounted with an end plate. The large-diameter vortex flowmeter can flexibly adjust the distance between the detector and the vortex sounding body through the expansion and contraction of the electric push rod, and then pull the end plate and the movable rod to move back and forth, so that the detector and the detection probe can always be in the same position. The most appropriate position avoids the phenomenon of missing pulses as much as possible, and effectively improves the accuracy of measurement.

Description

A Large Diameter Vortex Flowmeter

technical field

The utility model relates to the technical field of vortex flowmeters, in particular to a large-diameter vortex flowmeter.

Background technique

The vortex flowmeter is a flowmeter based on the principle of fluid vibration. In the current vortex flowmeter, the vortex signal sensor is installed vertically on the vortex flowmeter housing, and the axial direction is arranged in parallel behind the vortex signal generator. , the tail of the sensor is arranged parallel to the flow direction of the fluid. When the fluid passes through the vortex signal generator, the vortex generated is transmitted to the vortex signal sensor. The higher the flow rate, the stronger the vortex signal, and the flow of fluid inside the vortex flowmeter The speed is distributed in steps in the vortex flowmeter. The center flow velocity of the vortex flowmeter is the highest, the flow velocity of the inner wall of the vortex flowmeter is zero, the center vortex signal of the flowmeter is the highest, and the inner wall vortex signal of the flowmeter is zero.

Compared with the large-diameter vortex flowmeter, due to the size limitation of the vortex signal sensor, the insertion depth of the vortex signal sensor into the vortex flowmeter casing is limited, and the large-diameter vortex flowmeter often loses pulses during work, resulting in Due to the large instrument error, vortex flowmeters with an inner diameter greater than 300mm sometimes cannot work normally, so this application proposes a large-diameter vortex flowmeter.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a large-diameter vortex flowmeter, which has the advantages of accurate measurement and the like.

In order to achieve the above purpose of accurate measurement, the utility model provides the following technical solutions: a large-diameter vortex flowmeter, including a test tube, the inner wall of the test tube is fixedly installed with a vortex sounding body, the vortex sounding body There is an inner cavity extending to the right side of the vortex sounding body inside, one side of the vortex sounding body is provided with a movable measurement assembly, and the movable measurement assembly includes a mounting plate, and the internal thread of the mounting plate is installed with a vortex The installation rod connected with the sounding body threadedly, the inside of the installation board is installed with a movable rod transversely penetrating through the installation board, the left end of the movable rod is fixedly installed with an end plate, and the inner wall of the inner cavity is fixedly installed with an end plate An electric push rod is fixedly connected, a detector is fixedly installed at the other end of the movable rod, and a detection probe is movably installed on the surface of the detector.

Further, the test tube is a round tube, and the two ends of the test tube are fixedly installed with butt joints, the butt joints are in the shape of "convex", and the surface of the butt joints is equidistantly provided with several butt screw holes, and the surface of the test tube is fixedly installed. There are signal handlers.

Further, the mounting plate is a ring plate, and a sealing ring is fixedly installed on the inner wall of the mounting plate and on the surface of the movable rod. The sealing ring is a corrosion-resistant rubber ring, and the sealing ring is slidably connected with the movable rod.

Further, the movable rod is a hollow rod, one end of the movable rod extends to the inside of the inner cavity, and a wire is movably installed inside the movable rod, and the two ends of the wire are respectively connected to the detector and the signal processor.

Further, a vertical pole is fixedly installed on the inner bottom wall of the test tube and on the right side of the vortex sounding body, and a limit hoop is fixedly installed on the top of the vertical pole.

Further, the limiting hoop is circular, the limiting hoop is covered on the surface of the movable rod, and the movable rod is slidably connected with the limiting hoop.

Compared with the prior art, the utility model provides a large-diameter vortex flowmeter, which has the following

Beneficial effect:

The large-diameter vortex flowmeter can flexibly adjust the distance between the detector and the vortex sounding body through the expansion and contraction of the electric push rod, and then pull the end plate and the movable rod to move back and forth, so that the detector and the detection probe can always be in the same position. The most appropriate position avoids the phenomenon of missing pulses as much as possible, so as to accurately measure the flow rate of the medium and effectively improve the accuracy of measurement. By slidingly installing a device on the surface of the movable rod that is fixedly connected to the inner bottom wall of the test tube The limit hoop effectively ensures the stability of the movable rod during movement.

Description of drawings

Fig. 1 is the utility model top view sectional view;

Fig. 2 is the magnified partial cross-sectional view of the vortex street sounding body of the utility model;

Fig. 3 is a top view of the utility model.

In the figure: 1 test tube, 2 pairs of joints, 3 vortex sounding body, 4 inner cavity, 5 mounting plate, 6 mounting rod, 7 sealing ring, 8 movable rod, 9 end plate, 10 electric push rod, 11 detector, 12 detection probe, 13 limit hoop, 14 signal processor.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-3, a large-diameter vortex flowmeter, including a test tube 1, a vortex sounding body 3 is fixedly installed on the inner wall of the test tube 1, and a vortex sounding body 3 is opened inside the vortex street sounding body 3 to extend to the vortex street. The inner cavity 4 on the right side of the body 3 is used to arrange the wires, and one side of the vortex street sounding body 3 is provided with a movable measuring assembly.

Among them, the test tube 1 is a round tube, and the two ends of the test tube 1 are fixedly installed with a "convex"-shaped butt joint 2 for butt jointing with the pipeline, and a number of butt joint screw holes are provided at equal intervals on the surface of the butt joint 2, A signal processor 14 is fixedly installed on the surface of the test tube 1 for installing the screw rod.

Please refer to Fig. 2, the movable measuring assembly includes an annular mounting plate 5, the internal thread of the mounting plate 5 is installed with the mounting rod 6 threadedly connected with the vortex street sounding body 3, and the internal movement of the mounting plate 5 is installed with a transverse penetrating mounting plate 5, the movable rod 8, the left end of the movable rod 8 is fixedly installed with an end plate 9, the inner wall of the inner cavity 4 is fixedly installed with an electric push rod 10 fixedly connected with the end plate 9, and the other end of the movable rod 8 is fixedly installed with a detector 11, A detection probe 12 is installed on the surface of the detector 11 .

Among them, the inner wall of the mounting plate 5 and the surface of the movable rod 8 are fixedly installed with a sealing ring 7, the sealing ring 7 is a corrosion-resistant rubber ring, which is used to improve the sealing effect and reduce the risk of medium entering the inner cavity (4), and the sealing ring 7 Slidingly connected with movable bar 8.

Secondly, the movable rod 8 adopts a hollow rod, which is convenient for connecting the wires. One end of the movable rod 8 extends to the inside of the inner chamber 4, and the inside of the movable rod 8 is movably equipped with wires, and the two ends of the wires are respectively connected to the detector 11 and the signal processor 14. .

The data measured by the detection probe 12 is transmitted to the signal processor 14 through wires, and then displayed by the signal processor 14 .

On the inner bottom wall of the test tube 1 and on the right side of the vortex sounding body 3, a vertical rod is fixedly installed, and the top of the vertical rod is fixedly installed with a limit hoop 13 that is sleeved on the surface of the movable rod 8 . The limit hoop 13 is circular, and the movable rod 8 is slidably connected with the limit hoop 13 to ensure the stability of the movable rod (8) during the movement.

When this embodiment is in use, start the electric push rod 10, and use the electric push rod 10 to pull the end plate 9 and the movable rod 8 to move back and forth, thereby flexibly adjusting the distance between the detector 11 and the vortex sounding body 3, so that the detector 11 And the detection probe 12 is in the most appropriate position, avoiding the phenomenon of missing pulses as much as possible, so as to accurately measure the flow rate of the medium.

The electrical components appearing in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that can be controlled by a computer, etc., and the existing public power connection technology will not be repeated in the article.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a heavy-calibre vortex flowmeter, includes test tube (1), its characterized in that: a vortex street sounding body (3) is fixedly mounted on the inner wall of the test tube (1), an inner cavity (4) extending to the right side of the vortex street sounding body (3) is formed in the vortex street sounding body (3), and a movable measuring assembly is arranged on one side of the vortex street sounding body (3);

the activity measuring subassembly includes mounting panel (5), the internal thread of mounting panel (5) install with vortex street sounding body (3) threaded connection's installation pole (6), the inside movable mounting of mounting panel (5) has movable rod (8) that transversely runs through mounting panel (5), the left end fixed mounting of movable rod (8) has end plate (9), the inner wall fixed mounting of inner chamber (4) has electric putter (10) with end plate (9) fixed connection, movable rod (8) other end fixed mounting has detector (11), the surface activity mounting of detector (11) has test probe (12).

2. The large-caliber vortex shedding flowmeter according to claim 1, wherein: the testing pipe (1) is the pipe, and the equal fixed mounting in both ends of testing pipe (1) has butt joint (2), and butt joint (2) are "protruding" font, and a plurality of butt joint screw has been seted up to the surface equidistant of butt joint (2), and the fixed surface of testing pipe (1) installs signal processor (14).

3. The large-caliber vortex shedding flowmeter according to claim 1, wherein: mounting panel (5) are the ring plate, and the fixed surface that the inner wall of mounting panel (5) just is located movable rod (8) installs sealing washer (7), and sealing washer (7) are corrosion-resistant rubber circle, sealing washer (7) and movable rod (8) sliding connection.

4. The large-caliber vortex shedding flowmeter according to claim 2, wherein: the movable rod (8) is a hollow rod, one end of the movable rod (8) extends to the inside of the inner cavity (4), a wire is movably arranged inside the movable rod (8), and two ends of the wire are respectively connected with the detector (11) and the signal processor (14).

5. The large-caliber vortex shedding flowmeter according to claim 1, wherein: the inner bottom wall of the test tube (1) is fixedly provided with a vertical rod on the right side of the vortex street sounding body (3), and the top of the vertical rod is fixedly provided with a limiting hoop (13).

6. The large-caliber vortex shedding flowmeter according to claim 5, wherein: the limiting hoop (13) is annular, the limiting hoop (13) is sleeved on the surface of the movable rod (8), and the movable rod (8) is connected with the limiting hoop (13) in a sliding mode.

Images