Vortex shedding flowmeter with probe convenient to replace

Abstract

The utility model relates to the technical field of vortex shedding flowmeters, and discloses a vortex shedding flowmeter with a probe convenient to replace, which comprises a main shell, a flowmeter converter and a vortex generator, two sides of the main shell are fixedly connected with pipelines, one end of each pipeline is fixedly connected with a flange used for connection, and the other end of each pipeline is fixedly connected with a probe. A lower cavity is integrally formed in the bottom of the main shell, a sealing sleeve is arranged in the lower cavity, a guide assembly enabling the sealing sleeve to move vertically is arranged in the lower cavity, and a threaded hole is formed in the bottom of the lower cavity. According to the utility model, the purpose of online replacement of the sensor can be realized, the problem that production is stopped and flow is cut off when a probe is damaged is solved, the normal operation of a user pipeline and unnecessary economic loss are ensured to the greatest extent, and a gap between the sealing sleeve and the lower cavity can be sealed; the sealing problem of the sealing sleeve and the lower cavity in the whole movement process is solved, and position deviation in the upward movement process of the sealing sleeve can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vortex flowmeter technical field more particularly to a vortex flowmeter convenient to replace probe. BACKGROUND

[0002] Vortex flowmeter is a kind of flow measuring instrument based on the principle of karman vortex, also known as vortex flowmeter or karman vortex flowmeter. It is mainly used to measure the volume flow of gas, steam or liquid in various pipelines.

[0003] At present, the existing vortex flowmeter is mostly in the form of opening hole on the pipeline, inserting and fixing the probe, when the probe fails, it cannot be replaced under the condition that the pipeline is full of liquid with certain pressure, otherwise the medium in the pipeline will leak out from the probe hole, especially the high-temperature and high-pressure toxic and harmful medium is not allowed to leak. INVENTION CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a vortex flowmeter convenient to replace probe to solve the problems existing in the above-mentioned background art.

[0005] The utility model provides the following technical scheme: a vortex flowmeter convenient to replace probe, including main casing, flowmeter converter and vortex generator, both sides of main casing are fixedly connected with pipeline, and one end of pipeline is fixedly connected with the flange for connection, the bottom of main casing is integrally formed with lower cavity, and the sealing sleeve is arranged in lower cavity, the guiding assembly that makes sealing sleeve move vertically is arranged in lower cavity, the threaded hole is arranged in the bottom of lower cavity, the jackscrew is connected in threaded hole in screw thread, and jackscrew is in contact with sealing sleeve, the mounting groove of echelon is arranged in the top of sealing sleeve, and O type ring is installed in mounting groove, and vortex generator is arranged in main casing.

[0006] As a further scheme of the utility model, the flowmeter converter includes base, meter head, probe lead and probe body, the base is fixedly connected at the top outer wall of main casing, the base is integrally formed with support sleeve at the top, the heat sink is arranged on the outside of support sleeve, the meter head is integrally formed with meter head locking cap at the bottom, and the meter head locking cap is connected with support sleeve in screw thread, the cable connector is arranged on one side of meter head, the probe body is installed in base through probe pressing piece, the probe body passes through main casing, the probe lead is arranged at the top of probe body, and one end of probe lead is connected with cable connector.

[0007] As a further scheme of the utility model, the top outer wall of main casing is embedded with sealing gasket, and the probe body passes through sealing gasket.

[0008] As a further scheme of the utility model, the bottom inner wall of the sealing sleeve is fixedly connected with a compression spring.

[0009] As a further scheme of the utility model, the circumferential inner wall of the lower cavity is provided with a ring-shaped groove, and a dynamic sealing ring is installed in the ring-shaped groove.

[0010] As a further scheme of the utility model, the guiding assembly comprises two guiding wings, the two guiding wings are symmetrically distributed on the circumferential outer wall of the sealing sleeve through bolts, the circumferential inner wall of the lower cavity is symmetrically provided with two guiding grooves, and the two guiding wings are slidably connected with the two guiding grooves respectively.

[0011] The utility model discloses technical effects and advantages:

[0012] 1. The utility model discloses a top screw, sealing sleeve and O type ring are set up, rotate the top screw, and the top screw pushes sealing sleeve and moves upwards to make the probe body enter the sealing sleeve and wrap the probe and realize the isolation separation of medium and probe, and simultaneously O type ring can seal the gap between sealing sleeve and main casing, then the flowmeter converter is dismantled, thereby realizing the purpose of replacing the sensor on -line, solving the problem that the probe must be stopped and flow -cutting when being damaged, and guaranteeing the normal operation of user pipeline and unnecessary economic loss to the maximum extent.

[0013] 2. The utility model discloses a dynamic sealing ring, and in the process of moving upwards of sealing sleeve, the dynamic sealing ring can seal the gap between sealing sleeve and lower cavity, and the sealing problem of sealing sleeve and lower cavity in the whole movement process is solved.

[0014] 3. The utility model discloses a guiding assembly, and in the process of moving upwards of sealing sleeve, the sealing sleeve can vertically move upwards under the action of the guiding assembly, thereby can avoid the position deviation of sealing sleeve in the process of moving upwards. DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the overhead structure schematic diagram of the utility model.

[0017] Figure 3 It is the B-B sectional view of the utility model. Figure 2

[0018] Figure 4 It is the local enlarged view of the utility model. Figure 3

[0019] ​​The reference signs are: 1, flowmeter converter; 2, pipeline; 3, main shell; 4, flange; 5, cable joint; 6, meter head locking cap; 7, radiator; 8, support sleeve; 9, base; 10, sealing sleeve; 11, lower cavity; 12, jackscrew; 13, probe lead; 14, probe pressing sheet; 15, probe body; 16, sealing gasket; 17, vortex generator; 18, O-ring; 19, dynamic sealing ring; 20, compression spring; 21, guide groove; 22, guide wing. DETAILED DESCRIPTION

[0020] The technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and additionally, the forms of the structures recorded in the following embodiments are only examples, and the utility model is not limited to the structures recorded in the following embodiments, and all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0021] Referring to Figures 1-4 The utility model provides a vortex shedding flowmeter convenient for replacing probe, including main shell 3, flowmeter converter 1 and vortex generator 17, the model of vortex generator 17 is LDG20LDG - 20, flowmeter converter 1 includes base 9, meter head, probe lead 13 and probe body 15, base 9 is fixed on the top outer wall of main shell 3 by bolt, and the top of base 9 is integrally formed with support sleeve 8, the outside of support sleeve 8 is equipped with radiator 7, and the model of radiator 7 is GG2030 - GG2180, and the bottom of meter head is integrally formed with meter head locking cap 6, and meter head locking cap 6 is connected with support sleeve 8 in screw thread, and one side of meter head is equipped with cable joint 5, probe body 15 is installed in base 9 through probe pressing sheet 14, probe body 15 passes through main shell 3, and probe body 15 is located just above sealing sleeve 10 and can be inserted with sealing sleeve 10, and probe lead 13 is arranged at the top end of probe body 15, and one end of probe lead 13 is connected with cable joint 5;

[0022] The pipeline 2 is welded on both sides of the main shell 3, and one end of the pipeline 2 is welded with a flange 4 for connection; the bottom of the main shell 3 is integrally formed with a lower cavity 11, the lower cavity 11 is provided with a sealing sleeve 10, the lower cavity 11 is provided with a guide assembly for vertically moving the sealing sleeve 10, the bottom of the lower cavity 11 is provided with a threaded hole, a jackscrew 12 is threadedly connected in the threaded hole and is in contact with the sealing sleeve 10, the top of the sealing sleeve 10 is provided with a stepped mounting groove, and an O-ring 18 is mounted in the mounting groove; a vortex generator 17 is arranged in the main shell 3; when disassembly is needed, the jackscrew 12 is rotated and moves upward through the threaded engagement between the jackscrew 12 and the threaded hole; the jackscrew 12 pushes the sealing sleeve 10 to move upward in the process of moving upward, so that the probe body 15 is inserted into the sealing sleeve 10; the sealing sleeve 10 drives the O-ring 18 to move upward in the process of moving upward; when the O-ring 18 moves upward to be in contact with the main shell 3, the probe body 15 is completely inserted into the sealing sleeve 10, so that the sealing sleeve 10 wraps the probe to realize the isolation and separation of the medium and the probe; the O-ring 18 seals the gap between the sealing sleeve 10 and the main shell 3; then the flowmeter converter 1 is disassembled, so that the purpose of replacing the sensor on line is achieved, the problem that the probe must be damaged to stop production and flow is solved, and the normal operation of the pipeline of the user and unnecessary economic losses are maximally ensured.

[0023] In the utility model, the top outer wall of the main shell 3 is embedded with a sealing gasket 16, and the probe body 15 passes through the sealing gasket 16; the sealing gasket 16 seals the gap between the probe body 15 and the main shell 3, so that the leakage of the medium from the gap between the probe body 15 and the main shell 3 can be avoided; the bottom inner wall of the sealing sleeve 10 is welded with a compression spring 20; when the probe body 15 is inserted into the sealing sleeve 10, the probe body 15 extrudes the compression spring 20; when the base 9 is disassembled from the main shell 3, the compression spring 20 pushes out the probe body 15 under the action of the elastic force of the compression spring 20, so that the probe is conveniently disassembled; the circumferential inner wall of the lower cavity 11 is provided with an annular groove, and a dynamic sealing ring 19 is mounted in the annular groove and is in contact with the sealing sleeve 10; in the process of moving upward of the sealing sleeve 10, the dynamic sealing ring 19 seals the gap between the sealing sleeve 10 and the lower cavity 11, so that the sealing problem of the sealing sleeve 10 and the lower cavity 11 in the whole movement process is solved; the guide assembly comprises two guide wings 22; the two guide wings 22 are symmetrically distributed on the circumferential outer wall of the sealing sleeve 10 through bolts; the circumferential inner wall of the lower cavity 11 is symmetrically provided with two guide grooves 21; the two guide wings 22 are respectively and slidably connected with the two guide grooves 21; in the process of moving upward of the sealing sleeve 10, the guide wings 22 are driven to move along the grooves of the guide grooves 21, so that the sealing sleeve 10 moves vertically upward and the position of the sealing sleeve 10 is prevented from deviating in the process of moving upward.

[0024] The utility model discloses a working principle: when need to disassemble, rotate the top silk 12, and the top silk 12 will move upwards through the thread engagement between with the screw hole, and the top silk 12 will push the sealing sleeve 10 and move upwards in the process of moving upwards, thereby make the probe body 15 insert into the sealing sleeve 10, and the sealing sleeve 10 will drive the O ring 18 and move upwards in the process of moving upwards, when the O ring 18 moves upwards and contacts with the main casing 3, the probe body 15 enters the sealing sleeve 10 completely at this moment, make the sealing sleeve 10 wrap the probe and realize the isolation separation of medium and probe, and the O ring 18 will seal the gap between the sealing sleeve 10 and the main casing 3, then will flowmeter converter 1 disassemble, thereby realize the purpose of on -line replacement sensor, solve the problem that the probe damage must stop production and cut off, guarantee the normal operation of user pipeline and unnecessary economic loss to the maximum, and when the probe body 15 inserts into the sealing sleeve 10, the probe body 15 will extrude the compression spring 20, when the base 9 is disassembled from the main casing 3, the compression spring 20 will eject the probe body 15 under the action of the self elasticity at this moment, thereby facilitate the disassembly of the probe.

[0025] The last few points should be explained: in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, can be mechanical connection or electrical connection, can be the communication of two elements inside, can be directly connected, "up", "down", "left", "right" are only used to express relative position relation, when the absolute position of the described object changes, the relative position relation can change;

[0026] The utility model discloses the drawings in the disclosure embodiment, only relate to the structure related to the disclosure embodiment, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiments of the utility model can be combined mutually.

Claims

1. A vortex flowmeter with a probe that is easy to replace, comprising a main housing (3), a flowmeter converter (1) and a vortex generator (17), characterized in that: Both sides of the main shell (3) are fixedly connected with the pipeline (2), one end of the pipeline (2) is fixedly connected with the flange (4) for connection, the bottom of the main shell (3) is integrally formed with the lower cavity (11), the lower cavity (11) is provided with the sealing sleeve (10), the lower cavity (11) is provided with the guide assembly for vertically moving the sealing sleeve (10), the bottom of the lower cavity (11) is provided with the threaded hole, the threaded hole is threadedly connected with the jackscrew (12), and the jackscrew (12) is in contact with the sealing sleeve (10), the top of the sealing sleeve (10) is provided with the stepped mounting groove, the O-shaped ring (18) is mounted in the mounting groove, and the vortex generator (17) is arranged in the main shell (3).

2. A vortex flowmeter with easy probe replacement according to claim 1, characterized in that: The flowmeter converter (1) comprises a base (9), a meter head, a probe lead (13) and a probe body (15), the base (9) is fixedly connected to the top outer wall of the main shell (3), the top of the base (9) is integrally formed with the supporting sleeve (8), the outer side of the supporting sleeve (8) is provided with the radiator (7), the bottom of the meter head is integrally formed with the meter head locking cap (6), and the meter head locking cap (6) is threadedly connected with the supporting sleeve (8), one side of the meter head is provided with the cable connector (5), the probe body (15) is mounted in the base (9) through the probe pressing piece (14), the probe body (15) penetrates through the main shell (3), the probe lead (13) is arranged at the top end of the probe body (15), and one end of the probe lead (13) is connected with the cable connector (5).

3. A vortex flowmeter with easy probe replacement according to claim 2, characterized in that: The top outer wall of the main shell (3) is embedded with the sealing gasket (16), and the probe body (15) penetrates through the sealing gasket (16).

4. A vortex flowmeter with easy probe replacement according to claim 1, characterized in that: The bottom inner wall of the sealing sleeve (10) is fixedly connected with the compression spring (20).

5. A vortex flowmeter with easy probe replacement according to claim 1, characterized in that: The circumferential inner wall of the lower cavity (11) is provided with the annular groove, and the dynamic sealing ring (19) is mounted in the annular groove.

6. A vortex flowmeter with easy probe replacement according to claim 1, characterized in that: The guide assembly comprises two guide wings (22), the two guide wings (22) are symmetrically distributed on the circumferential outer wall of the sealing sleeve (10) through bolts, the circumferential inner wall of the lower cavity (11) is symmetrically provided with two guide grooves (21), and the two guide wings (22) are respectively connected with the two guide grooves (21) in a sliding mode.

Images