Automatic metering device for conveying pipeline

Abstract

The utility model discloses an automatic metering device for a conveying pipeline, which relates to the technical field of pipeline metering equipment and comprises a connecting pipe body, a valve seat is fixedly connected to the middle of the upper surface of the connecting pipe body, a dismounting assembly is movably mounted in the valve seat and comprises a valve core rotationally connected to the inner wall of the valve seat, and the valve core is fixedly connected to the inner wall of the valve seat. The bottom end of the valve element extends to the inner wall of the connecting pipe body. According to the utility model, the fastening bolt and the mounting cover are firstly twisted for disassembly, then a right angle of the connecting rod is rotated, the clamping block is rotated to the tail end of the inner wall on one side in the L-shaped groove, then a right angle of the connecting rod is continuously rotated to abut against the valve core to rotate, the axis of the through hole is perpendicular to the inner wall of the pipe body, and flow closing is carried out on the pipeline; the whole connecting pipe body is prevented from being dismantled, the labor amount is reduced, then the connecting rod and the probe are integrally pulled out upwards along the L-shaped groove, rapid dismantling of equipment is achieved, and replacement and overhaul of the probe are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline metering equipment, in particular to an automatic metering device for a conveying pipeline. Background Art

[0002] In fields such as industrial production and energy transportation, accurate measurement of fluids in pipelines is crucial. With the development of industry, the demand for pipeline metering devices is increasing. With the advancement of science and technology, various new pipeline metering devices are constantly emerging. For example, electromagnetic flowmeters use the principle of electromagnetic induction to measure the flow rate of conductive liquids; ultrasonic flowmeters calculate flow rate by the propagation time difference of ultrasonic waves in the fluid. These metering devices play an important role in different application scenarios and provide multiple options for achieving accurate pipeline flow measurement.

[0003] Among them, the vortex meter is a flow measuring instrument developed based on the Karman vortex street principle. When the fluid flows through the bluff body in the pipeline, vortices will be generated alternately on both sides of the bluff body. The frequency of the vortex is related to the flow rate of the fluid and the characteristic size of the probe body (i.e. the bluff body). The frequency of the vortex is transmitted back to the main body of the metering device above (i.e. the multiple components containing the dial) through the bluff body, and the flow rate of the fluid can be calculated. After continuous updates and iterations, the vortex meter is now widely used in the petroleum, chemical, electric power and other industries, and has become an important pipeline flow metering device.

[0004] However, the existing equipment still has certain shortcomings. First of all, when replacing and repairing the metering monitoring probe of the current vortex meter, it is necessary to remove multiple sets of bolts on the flanges on both sides of the equipment and then separate it from the pipeline. Only then can the metering monitoring probe be operated. This is relatively cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide an automatic metering device for a conveying pipeline to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an automatic metering device for a conveying pipeline, comprising a connecting pipe body, a valve seat fixedly connected to the middle position of the upper surface of the connecting pipe body, and a disassembly assembly movably installed inside the valve seat;

[0007] The disassembly and assembly assembly includes a valve core rotatably connected to the inner wall of the valve seat, the bottom end of the valve core extends to the inner wall of the connecting pipe body, two groups of L-grooves are diagonally opened on the inner wall of the valve core, and a through hole is opened on the inner wall of the bottom end of the valve core. The inner wall of the valve core is rotatably connected to a connecting rod, and two groups of blocks are symmetrically fixedly connected to the outer wall of the bottom end of the connecting rod. A limiting ring is fixedly mounted on the outer wall of the connecting rod above the block, and the top of the connecting rod is fixedly connected to the metering device body.

[0008] By adopting the above technical solution, first twist the fastening bolts and the mounting cover for disassembly, then rotate the connecting rod at a right angle. At this time, the block rotates in the L-groove to the end of the inner wall on one side, and then continue to rotate the connecting rod at a right angle to rotate the valve core. At this time, the axis of the through hole is perpendicular to the inner wall of the pipe body. At this time, the pipeline is closed to avoid dismantling the entire connecting pipe body and reduce labor. Then, the connecting rod and the probe are pulled out upward along the L-groove as a whole, realizing quick disassembly of the equipment and facilitating replacement and maintenance of the probe.

[0009] Furthermore, a rotation groove is provided at the position where the inner wall of the connecting tube body contacts the valve core, and the cross-sectional shape of the outer wall at the top end of the valve seat is a "convex" shape.

[0010] By adopting the above technical solution, the rotating groove can limit the connecting rod to prevent the connecting rod from shifting. The cross-sectional shape of the top outer wall of the valve seat is a "convex" shape, and the top outer wall is provided with a threaded groove that matches the installation cover, which can facilitate the disassembly and assembly of the installation cover.

[0011] Furthermore, a mounting cover is threadedly connected to the outer wall of the curved surface at the top end of the valve seat, and a through hole matching the connecting rod is provided in the middle of the mounting cover.

[0012] By adopting the above technical solution, the mounting cover is pressed against the inner wall of the slot by the fastening bolts connected by the through-hole internal threads to limit the connecting rod, prevent it from rotating, and ensure the fixing strength of the valve core.

[0013] Furthermore, two sets of sealing rings are symmetrically sleeved on the upper and lower surfaces of the outer wall of the connecting rod, and two sets of slots are symmetrically opened on the outer wall of the connecting rod.

[0014] By adopting the above technical solution, the two sets of sealing rings can fill the gap between the limit ring and the top of the inner wall of the installation cover and the upper surface of the valve core when the connecting rod is installed, thereby playing a sealing role.

[0015] Furthermore, a fastening bolt is threadedly connected to an outer wall of one side of the mounting cover, and the end of the fastening bolt passes through the mounting cover to the inner wall and is tightly pressed against the inner wall of the slot.

[0016] By adopting the above technical solution, the end of the fastening bolt passes through the mounting cover to the inner wall and is pressed against the inner wall of the slot to limit the connecting rod, prevent the connecting rod and the block from rotating, and ensure the fixing strength.

[0017] Furthermore, the size of the block matches the inner wall of the L-groove, and a sealing filler strip is movably installed inside each group of the L-grooves.

[0018] By adopting the above technical solution, the two sets of blocks can rotate in two sets of diagonally arranged L-grooves. When the block hits the inner wall of one end of the L-groove, it drives the valve core as a whole to rotate. The through hole is perpendicular to the axis of the inner wall of the connecting pipe body to block the pipes at both ends, so that the material in the pipe will not leak in large quantities when the probe body is subsequently disassembled.

[0019] Furthermore, a probe body is fixedly mounted on the inner wall of the valve seat at the bottom end of the connecting rod.

[0020] By adopting the above technical solution, the probe body can transmit the frequency of the vortex generated by the fluid inside the pipeline after passing through the probe body back to the metering device body above through the sensor.

[0021] In summary, the present invention has the following beneficial effects:

[0022] The utility model is disassembled by first twisting the fastening bolts and the installation cover, and then rotating the connecting rod at a right angle. At this time, the block rotates in the L groove to the end of the inner wall on one side, and then continues to rotate the connecting rod at a right angle to rotate the valve core. At this time, the axis of the through hole is perpendicular to the inner wall of the pipe body. At this time, the pipeline is closed to avoid dismantling the entire connecting pipe body and reduce labor. Then, the connecting rod and the probe are pulled out upward along the L groove as a whole, so that the equipment can be quickly disassembled and the probe is easy to replace and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main view of the utility model;

[0024] Figure 2 This is a disassembled diagram of the utility model;

[0025] Figure 3 It is a cutaway view of the utility model;

[0026] Figure 4 This is a detailed diagram of the pipe body and valve core structure of the utility model;

[0027] Figure 5 This is a detailed diagram of the disassembly of the pipe body and valve core of the utility model.

[0028] In the figure: 1. Connecting pipe body; 11. Valve seat; 12. Rotating groove; 2. Disassembly and assembly components; 21. Valve core; 211. L-groove; 212. Through hole; 22. Metering device body; 221. Probe body; 23. Connecting rod; 231. Slot; 232. Limiting ring; 233. Block; 24. Sealing ring; 25. Mounting cover; 26. Fastening bolt; 27. Sealing packing strip. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] The following describes an embodiment of the present invention based on its overall structure.

[0031] An automatic metering device for a conveying pipeline, such as Figure 1 - Figure 5 As shown, it includes a connecting pipe body 1, a valve seat 11 is fixedly connected to the middle position of the upper surface of the connecting pipe body 1, and a disassembly assembly 2 is movably installed inside the valve seat 11;

[0032] The disassembly and assembly component 2 includes a valve core 21 rotatably connected to the inner wall of the valve seat 11, the bottom end of the valve core 21 extends to the inner wall of the connecting tube body 1, two groups of L-grooves 211 are diagonally opened on the inner wall of the valve core 21, and a through hole 212 is opened on the inner wall of the bottom end of the valve core 21. The inner wall of the valve core 21 is rotatably connected to a connecting rod 23, and two groups of blocks 233 are symmetrically fixedly connected to the outer wall of the bottom end of the connecting rod 23. The outer wall of the connecting rod 23 is located above the block 233 and is fixedly sleeved with a limiting ring 232. The top of the connecting rod 23 is fixedly connected to the metering device body 22.

[0033] The utility model is disassembled by first twisting the fastening bolt 26 and the installation cover 25, and then rotating the connecting rod 23 at a right angle. At this time, the block 233 rotates to the end of the inner wall on one side in the L groove 211, and then continues to rotate the connecting rod 23 at a right angle to rotate the valve core 21. At this time, the axis of the through hole 212 is perpendicular to the inner wall of the pipe body. At this time, the pipeline is closed to avoid dismantling the entire connecting pipe body 1 and reduce labor. Then, the connecting rod 23 and the probe are pulled out upward along the L groove 211 as a whole, thereby realizing quick disassembly of the equipment and facilitating replacement and maintenance of the probe.

[0034] See also Figure 1 - Figure 5 A rotation groove 12 is provided at the contact position between the inner wall of the connecting pipe body 1 and the valve core 21, and the cross-sectional shape of the top outer wall of the valve seat 11 is a "convex" shape. By setting the above structure, the utility model can limit the connecting rod 23 by setting the above structure, and prevent the connecting rod 23 from deviating. The cross-sectional shape of the top outer wall of the valve seat 11 is a "convex" shape, and the top outer wall is provided with a threaded groove matching the installation cover 25, which can facilitate the installation cover 25 to be disassembled and assembled.

[0035] See also Figure 2 - Figure 3The top curved outer wall of the valve seat 11 is threadedly connected to a mounting cover 25, and a through-hole matching the connecting rod 23 is opened in the middle position of the mounting cover 25. By setting the above structure, the mounting cover 25 is tightened against the inner wall of the card slot 231 through the fastening bolt 26 connected by the inner thread of the through-hole to limit the connecting rod 23, preventing it from rotating and ensuring the fixing strength of the valve core 21.

[0036] See also Figure 2 - Figure 3 The outer wall of the connecting rod 23 is located on the upper and lower surfaces of the limit ring 232 and is symmetrically sleeved with two sets of sealing rings 24. The outer wall of the connecting rod 23 is symmetrically opened with two sets of card grooves 231. By setting the above structure, the utility model can fill the gap between the limit ring 232 and the top of the inner wall of the installation cover 25 and the upper surface of the valve core 21 when the connecting rod 23 is installed, thereby playing a sealing role.

[0037] See also Figure 2 - Figure 3 The outer wall of one side of the mounting cover 25 is threadedly connected with a fastening bolt 26, and the end of the fastening bolt 26 passes through the mounting cover 25 to the inner wall and is tightly pressed against the inner wall of the card slot 231. By setting the above structure, the end of the fastening bolt 26 passes through the mounting cover 25 to the inner wall and is tightly pressed against the inner wall of the card slot 231, which can limit the connecting rod 23, prevent the connecting rod 23 and the block 233 from rotating, and ensure the fixing strength.

[0038] See also Figure 2 - Figure 5 The size of the block 233 matches the inner wall of the L-groove 211, and a sealing filler strip 27 is movably installed inside each group of L-grooves 211. By setting the above structure, the utility model allows the two groups of blocks 233 to rotate in the two groups of diagonally arranged L-grooves 211. When the block 233 hits the inner wall of one end of the L-groove 211, it drives the valve core 21 to rotate as a whole, and uses the through hole 212 to be perpendicular to the axis of the inner wall of the connecting pipe body 1 to block the pipes at both ends, so that the material in the pipe will not leak in large quantities when the probe body 221 is subsequently disassembled.

[0039] See also Figure 2 - Figure 3 The bottom end of the connecting rod 23 is located on the inner wall of the valve seat 11 and a probe body 221 is fixedly installed. By setting the above structure, the probe body 221 can transmit the frequency of the vortex generated after the fluid inside the pipeline passes through the probe body 221 back to the metering device body 22 above through the sensor.

[0040] The working principle of the present invention is as follows: when the probe body 221 needs to be repaired or replaced, first twist the fastening bolt 26 and the mounting cover 25 to disassemble it, then rotate the connecting rod 23 at a right angle, at this time the block 233 rotates to the end of the inner wall on one side in the L groove 211, and then continue to rotate the connecting rod 23 at a right angle to rotate the valve core 21, at this time the axis of the through hole 212 is perpendicular to the inner wall of the pipe body, the pipeline is closed at this time, avoiding the removal of the entire connecting pipe body 1, reducing labor, and then the connecting rod 23 and the probe are pulled out upward along the L groove 211 as a whole, realizing quick disassembly of the equipment and facilitating the replacement and repair of the probe.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic metering device for a conveying pipeline, comprising a connecting pipe body (1), characterized in that: A valve seat (11) is fixedly connected to the middle position of the upper surface of the connecting pipe body (1), and a disassembly assembly (2) is movably installed inside the valve seat (11); The disassembly assembly (2) comprises a valve core (21) rotatably connected to the inner wall of the valve seat (11), the bottom end of the valve core (21) extends to the inner wall of the connecting pipe body (1), two groups of L-grooves (211) are diagonally opened on the inner wall of the valve core (21), a through hole (212) is opened on the inner wall of the bottom end of the valve core (21), the inner wall of the valve core (21) is rotatably connected to a connecting rod (23), the outer wall of the bottom end of the connecting rod (23) is symmetrically fixedly connected to two groups of clamping blocks (233), the outer wall of the connecting rod (23) is located above the clamping block (233) and is fixedly sleeved with a limiting ring (232), and the top end of the connecting rod (23) is fixedly connected to the metering device body (22).

2. The automatic metering device for a conveying pipeline according to claim 1, characterized in that: A rotation groove (12) is provided at the contact position between the inner wall of the connecting pipe body (1) and the valve core (21), and the cross-sectional shape of the outer wall of the top end of the valve seat (11) is a "convex" shape.

3. The automatic metering device for a conveying pipeline according to claim 1, characterized in that: The top curved outer wall of the valve seat (11) is threadedly connected to a mounting cover (25), and a through hole matching the connecting rod (23) is provided in the middle of the mounting cover (25).

4. The automatic metering device for a conveying pipeline according to claim 1, characterized in that: The outer wall of the connecting rod (23) is symmetrically sleeved with two sets of sealing rings (24) on the upper surface and the lower surface of the limiting ring (232), and the outer wall of the connecting rod (23) is symmetrically opened with two sets of card slots (231).

5. The automatic metering device for a conveying pipeline according to claim 3, characterized in that: A fastening bolt (26) is threadedly connected to an outer wall of one side of the mounting cover (25), and the end of the fastening bolt (26) passes through the mounting cover (25) to the inner wall and is tightly pressed against the inner wall of the slot (231).

6. The automatic metering device for a conveying pipeline according to claim 1, characterized in that: The size of the block (233) matches the inner wall of the L-shaped groove (211), and a sealing filler strip (27) is movably installed inside each group of the L-shaped grooves (211).

7. The automatic metering device for a conveying pipeline according to claim 1, characterized in that: The bottom end of the connecting rod (23) is located on the inner wall of the valve seat (11) and a probe body (221) is fixedly mounted thereon.

Images