A new type of high-precision metal tube float flowmeter with high reliability

Abstract

The present invention relates to the technical field of flow monitoring, and discloses a novel high-precision metal tube float flowmeter with high reliability, comprising a flowmeter body, the flowmeter body comprising a float and a measuring tube, the float is movably arranged inside the measuring tube, a T-shaped fixing rod is fixedly arranged inside the measuring tube at the position of the liquid inlet end, the inside of the T-shaped fixing rod is hollow, a liquid inlet hole is opened at the lower end of the T-shaped fixing rod, a piston pad is slidably connected inside the vertical side of the T-shaped fixing rod, and a T-shaped sliding rod is fixedly connected to the upper end of the piston pad. The novel high-precision metal tube float flowmeter with high reliability can make the float fall back and reset quickly and stably through magnetic attraction as the medium stops flowing, the float falls back with high reliability, there is no need to manually return the float to its original position, the use effect is good, and at the same time, the verticality of the measuring tube can be observed during use to ensure normal measurement.

Description

Technical Field

[0001] The invention relates to the technical field of flow monitoring, in particular to a novel high-precision metal tube float flowmeter with high reliability. Background Art

[0002] The float of the metal tube float flowmeter is in the measuring tube. As the flow rate changes, the float moves upward. At a certain position, the buoyancy of the float is balanced with the weight of the float. At this time, the flow annular gap area between the float and the orifice plate (or cone tube) remains constant. The annular gap area is proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the size of the flow rate. The changing position of the float is transmitted to the external indicator by the internal magnet, so that the indicator correctly indicates the flow value at this time.

[0003] At present, when the metal tube float flowmeter is in use, since the float can move along the axis of the pipe in the measuring tube, in actual use, when the medium stops flowing, the float will move down to its original position under the action of gravity. However, the float often fails to fall normally due to friction from impurities, affecting the subsequent flow detection. Therefore, a new type of high-precision metal tube float flowmeter with high reliability is proposed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a novel high-precision metal tube float flowmeter with high reliability. The meter has the advantages that when the medium stops flowing, the float can be quickly and stably reset by magnetic attraction. The reliability of the float falling back is high, there is no need to manually return the float to its original position, and the meter has good use effect. The meter solves the problem that when the medium stops flowing, the float will move down to its original position under the action of gravity, while the float often fails to fall normally due to friction from impurities, thereby affecting the subsequent flow detection.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose that as the medium stops flowing, the float can be quickly and stably reset by magnetic attraction, the float can be reset with high reliability, there is no need to manually reset the float, and the use effect is good, the present invention provides the following technical solutions: a new type of high-precision metal tube float flowmeter with high reliability, including a flowmeter body, the flowmeter body including a float and a measuring tube, the float is movably arranged inside the measuring tube, a T-shaped fixing rod is fixedly arranged at the position of the liquid inlet end inside the measuring tube, the inside of the T-shaped fixing rod is hollow, a liquid inlet hole is opened at the lower end of the T-shaped fixing rod, and a piston is slidably connected to the vertical side of the T-shaped fixing rod. Pad, the upper end of the piston pad is fixedly connected with a T-shaped sliding rod, the lower sides of both ends of the horizontal part of the T-shaped sliding rod are fixedly connected with connecting rods, the lower ends of the horizontal part of the T-shaped fixed rod are fixedly connected with cylinders twice, the two connecting rods are movably connected to the inside of the cylinder on the same side, the lower ends of the two connecting rods and the inner cylinder bottom of the cylinder on the same side are fixedly connected with electrode blocks, the upper end of the T-shaped fixed rod is fixedly inserted with a round cover, the inside of the round cover is fixedly provided with an electromagnet, the two electrode blocks on the upper side are electrically connected to the electromagnet, the two electrode blocks on the lower side are electrically connected to the flowmeter body, and the lower end of the float is fixedly embedded with a round iron block.

[0008] Preferably, the outer tube wall of the measuring tube is fixedly connected with mounting flanges at the feed end and the discharge end, a filter is fixedly provided inside the mounting flange at the feed end of the measuring tube, and mounting bolts are threadedly connected in the mounting holes of the two mounting flanges.

[0009] Preferably, the vertical part of the T-shaped sliding rod is slidably connected to a connecting block, and the connecting block is fixed inside the T-shaped fixed rod. A return spring is fixed between the upper end of the piston pad and the lower end of the connecting block, and the return spring is movably connected to the rod wall of the T-shaped sliding rod.

[0010] Preferably, a plurality of evenly distributed top blocks are fixedly connected to the outer wall of the mounting flange located on the upper side of the measuring tube, the lower end of each of the fixed blocks is fixedly connected to a vertically arranged measuring rod, the lower end of each of the top blocks is fixedly connected to a connecting rope corresponding to the position of the measuring rod on the same side, and the lower end of each of the connecting ropes is fixedly connected to a vertical weight block.

[0011] Preferably, a scraper rod is provided under the filter, and the rod wall of the scraper rod is arranged in contact with the lower end of the filter, and a support plate is fixedly provided at the position of the feed end inside the measuring tube, and the lower end of the support plate is rotatably connected to a rotating shaft, and the shaft wall of the rotating shaft is rotatably connected to the end face of the filter.

[0012] Preferably, an impeller is fixedly sleeved on the shaft wall of the rotating shaft.

[0013] Preferably, a plurality of reinforcing blocks are fixedly connected to the outer tube wall of the measuring tube, and a triangular reinforcing plate is fixedly connected to one end of the end surface of each mounting block facing the two mounting flanges.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a new type of high-precision metal tube float flowmeter with high reliability, which has the following beneficial effects:

[0016] 1. This new type of high-precision metal tube float flowmeter with high reliability can monitor the flow of the medium through the flowmeter body. Through the cooperation of the T-shaped fixed rod, T-shaped sliding rod, piston pad, two connecting rods, two cylinders, four electrode blocks, round cover, electromagnet and round iron block, the float can be quickly and stably returned to its original position by magnetic attraction after the medium stops flowing. The reliability of the float returning is high, and there is no need to manually return the float to its original position, so the use effect is good.

[0017] 2. This new type of high-precision metal tube float flowmeter with high reliability can facilitate the installation and fixation of the measuring tube through the two mounting flanges. The impurities entering can be filtered through the filter to reduce the influence of the impurities on the float. The mutual cooperation of the reset spring and the connecting block can ensure the stable connection of the two electrode blocks on the same side. The mutual cooperation of the multiple top blocks, multiple connecting ropes, multiple vertical weights and multiple measuring rods can facilitate the observation of the verticality of the measuring tube during use to ensure normal measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a new type of high-precision metal tube float flowmeter with high reliability proposed by the present invention;

[0019] Figure 2 The present invention proposes Figure 1 A magnified view of the structure of part A;

[0020] Figure 3 The present invention proposes Figure 1 A magnified view of the structure of part B;

[0021] Figure 4 The present invention proposes Figure 1 Schematic diagram of the structure of the middle filter from above.

[0022] In the figure: 1. flow meter body; 2. float; 3. measuring tube; 4. T-shaped fixing rod; 5. piston pad; 6. T-shaped sliding rod; 7. connecting rod; 8. cylinder; 9. electrode block; 10. round cover; 11. electromagnet; 12. round iron block; 13. mounting flange; 14. filter; 15. mounting bolts; 16. connecting block; 17. reset spring; 18. top block; 19. measuring rod; 20. connecting rope; 21. vertical weight block; 22. scraper rod; 23. support plate; 24. rotating shaft; 25. impeller; 26. reinforcement block; 27. triangular reinforcement plate. DETAILED DESCRIPTION

[0023] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-4 A new type of high-precision metal tube float flowmeter with high reliability includes a flowmeter body 1, the flowmeter body 1 includes a float 2 and a measuring tube 3, the float 2 is movably arranged inside the measuring tube 3, a T-shaped fixing rod 4 is fixedly arranged at the position of the liquid inlet end inside the measuring tube 3, the inside of the T-shaped fixing rod 4 is hollow, a liquid inlet hole is opened at the lower end of the T-shaped fixing rod 4, a piston pad 5 is slidably connected inside the vertical side of the T-shaped fixing rod 4, the upper end of the piston pad 5 is fixedly connected to a T-shaped sliding rod 6, and the lower sides of both ends of the horizontal part of the T-shaped sliding rod 6 are fixedly connected A connecting rod 7 is connected, and the lower end of the horizontal part of the T-shaped fixing rod 4 is fixedly connected to a cylinder 8 twice. The two connecting rods 7 are movably connected to the inside of the cylinder 8 on the same side. The lower ends of the two connecting rods 7 and the inner bottom of the cylinder 8 on the same side are fixedly connected with an electrode block 9. A round cover 10 is fixedly inserted at the upper end of the T-shaped fixing rod 4, and an electromagnet 11 is fixedly arranged inside the round cover 10. The two electrode blocks 9 on the upper side are electrically connected to the electromagnet 11, and the two electrode blocks 9 on the lower side are electrically connected to the flowmeter body 1. A round iron block 12 is fixedly embedded at the lower end of the float 2.

[0025] The outer tube wall of the measuring tube 3 is fixedly connected with a mounting flange 13 at the feed end and the discharge end. A filter screen 14 is fixedly provided inside the mounting flange 13 located at the feed end of the measuring tube 3. Mounting bolts 15 are threadedly connected in the mounting holes of the two mounting flanges 13. The two mounting flanges 13 and the mounting bolts 15 facilitate the installation and fixation of the measuring tube 3. The filter screen 14 can filter the impurities entering and reduce the influence of the impurities on the float.

[0026] The vertical rod wall of the T-shaped sliding rod 6 is slidably connected with a connecting block 16, which is fixed inside the T-shaped fixed rod 4. A reset spring 17 is fixed between the upper end of the piston pad 5 and the lower end of the connecting block 16. The reset spring 17 is movably sleeved with the rod wall of the T-shaped sliding rod 6. Through the connection block 16 and the reset spring 17, the two connecting rods 7 can automatically move down and reset after the medium stops flowing, ensuring that the electrode blocks 9 are stably connected.

[0027] The outer side wall of the mounting flange 13 located on the upper side of the measuring tube 3 is fixedly connected with a plurality of evenly distributed top blocks 18, the lower end of each fixed block is fixedly connected with a vertically arranged measuring rod 19, the lower end of each top block 18 is fixedly connected with a connecting rope 20 corresponding to the position of the measuring rod 19 on the same side, and the lower end of each connecting rope 20 is fixedly connected with a vertical weight block 21. During installation, the connecting rope 20 is kept in a vertical state by the vertical weight block 21. When the connecting rope 20 is staggered with the measuring rod 19, it can be judged that the measuring tube 3 is skewed. At this time, the measuring tube 3 needs to be readjusted and installed to ensure that the measuring tube 3 is installed vertically.

[0028] A scraper rod 22 is provided below the filter screen 14, and the rod wall of the scraper rod 22 is arranged in contact with the lower end of the filter screen 14. A support plate 23 is fixedly provided at the position of the feed end inside the measuring tube 3, and the lower end of the support plate 23 is rotatably connected with a rotating shaft 24. The shaft wall of the rotating shaft 24 is rotatably connected to the end face of the filter screen 14. The rotation of the scraper rod 22 driven by the rotating shaft 24 can scrape and clean impurities attached to the surface of the filter screen 14 to prevent the surface of the filter screen 14 from being blocked.

[0029] An impeller 25 is fixedly sleeved on the shaft wall of the rotating shaft 24 . When the medium enters the measuring tube 3 and impacts the impeller 25 , the impeller 25 can be rotated, thereby driving the rotating shaft 24 to rotate.

[0030] The outer tube wall of the measuring tube 3 is fixedly connected with a plurality of reinforcing blocks 26, and the end face of each mounting block facing the two mounting flanges 13 is fixedly connected with a triangular reinforcing plate 27. The overall strength of the measuring tube 3 can be improved by using a plurality of reinforcing blocks 26 and a plurality of triangular reinforcing plates 27.

[0031] In summary, the new type of high-precision metal tube float flowmeter with high reliability is used by installing the measuring tube 3 on the pipeline to be measured. When the medium enters the measuring tube 3, the medium impacts the piston pad 5, which can make the piston pad 5 move up, so as to drive the T-shaped sliding rod 6 to move up, so that the two electrode blocks 9 on the upper side can be driven to move up through the two connecting rods 7, so that the two electrode blocks 9 on the same side are separated, so that the electromagnet 11 can be powered off, and the magnetic attraction disappears. At this time, the medium flows, and the flow rate can be measured through the float 2. When the medium measurement is completed, the medium stops flowing. At this time, the T-shaped sliding rod 6 and the piston pad 5 move down, so that the two electrode blocks 9 on the same side can be contacted again, so that the electromagnet 11 is powered on, so that a magnetic attraction can be generated, so that the round iron block 12 can be used to absorb the float 2 to move down and reset, and the float 2 is returned to its original position. It is reliable to use and greatly reduces the possibility that the float 2 cannot fall normally.

[0032] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision metal tube float flowmeter with high reliability, comprising a flowmeter body (1), Features: The flow meter body (1) comprises a float (2) and a measuring tube (3), wherein the float (2) is movably arranged inside the measuring tube (3), a T-shaped fixing rod (4) is fixedly arranged inside the measuring tube (3) at a position at a liquid inlet end, the inside of the T-shaped fixing rod (4) is hollow, a liquid inlet hole is provided at the lower end of the T-shaped fixing rod (4), a piston pad (5) is slidably connected inside the vertical side of the T-shaped fixing rod (4), the upper end of the piston pad (5) is fixedly connected to a T-shaped sliding rod (6), the lower sides of both ends of the horizontal part of the T-shaped sliding rod (6) are fixedly connected to connecting rods (7), and the T-shaped fixing rod (4) is The lower ends of the horizontal parts of the flow meter (4) are both fixedly connected with cylinders (8), the two connecting rods (7) are both movably connected to the inside of the cylinder (8) on the same side, the lower ends of the two connecting rods (7) and the inner bottom of the cylinder (8) on the same side are both fixedly connected with electrode blocks (9), the upper end of the T-shaped fixing rod (4) is fixedly plugged with a round cover (10), the inside of the round cover (10) is fixedly provided with an electromagnet (11), the two electrode blocks (9) on the upper side are both electrically connected to the electromagnet (11), the two electrode blocks (9) on the lower side are both electrically connected to the flow meter body (1), and the lower end of the float (2) is fixedly embedded with a round iron block (12).

2. A high-precision metal tube float flowmeter with high reliability according to claim 1, Features: The outer tube wall of the measuring tube (3) is fixedly connected to mounting flanges (13) at the feed end and the discharge end, a filter screen (14) is fixedly provided inside the mounting flange (13) at the feed end of the measuring tube (3), and mounting bolts (15) are threadedly connected in the mounting holes of the two mounting flanges (13).

3. A high-precision metal tube float flowmeter with high reliability according to claim 1, Features: A connecting block (16) is slidably connected to the rod wall of the vertical portion of the T-shaped sliding rod (6); the connecting block (16) is fixedly arranged inside the T-shaped fixed rod (4); a return spring (17) is fixedly arranged between the upper end of the piston pad (5) and the lower end of the connecting block (16); the return spring (17) is movably sleeved with the rod wall of the T-shaped sliding rod (6).

4. A high-precision metal tube float flowmeter with high reliability according to claim 1, Features: A plurality of evenly distributed top blocks (18) are fixedly connected to the outer wall of the mounting flange (13) located on the upper side of the measuring tube (3); the lower end of each top block is fixedly connected to a vertically arranged measuring rod (19); the lower end of each top block (18) is fixedly connected to a connecting rope (20) corresponding to the position of the measuring rod (19) on the same side; and the lower end of each connecting rope (20) is fixedly connected to a vertical weight block (21).

5. A high-precision metal tube float flowmeter with high reliability according to claim 2, Features: A scraper rod (22) is provided below the filter screen (14), and a rod wall of the scraper rod (22) is arranged in contact with the lower end of the filter screen (14). A support plate (23) is fixedly provided at a position located at the feed end inside the measuring tube (3), and a rotating shaft (24) is rotatably connected to the lower end of the support plate (23), and a shaft wall of the rotating shaft (24) is rotatably connected to the end face of the filter screen (14).

6. A high-precision metal tube float flowmeter with high reliability according to claim 5, Features: An impeller (25) is fixedly sleeved on the shaft wall of the rotating shaft (24).

7. A high-precision metal tube float flowmeter with high reliability according to claim 1, Features: A plurality of reinforcement blocks (26) are fixedly connected to the outer tube wall of the measuring tube (3), and a triangular reinforcement plate (27) is fixedly connected to one end of the end surface of each reinforcement block facing the two mounting flanges (13).

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