Flow meter with stable flow velocity

Abstract

The utility model relates to a flow meter with stable flow speed, which belongs to the technical field of flow meters and comprises a connecting pipe, an adjusting flow stabilizing mechanism is arranged on the connecting pipe and comprises connecting flanges fixedly mounted at two ends of the connecting pipe, and connecting bolts are in threaded connection with the interiors of the connecting flanges. A mounting seat is fixedly mounted at the top of the connecting pipe, a flowmeter body is mounted in the mounting seat, and a partition plate is fixedly mounted in the connecting pipe. According to the flow meter with the stable flow speed, through the arranged adjusting flow stabilizing mechanism, when the flow meter body detects fluid, the flow speed of the fluid entering the connecting pipe is limited through mutual cooperation of all structures on the connecting pipe, and therefore the flow speed of the fluid flowing through the flow meter body is kept stable; therefore, the loss of the flowmeter body is reduced, the service life of the flowmeter body is prolonged, the maintenance or replacement cost is reduced, and the practical performance of the flowmeter body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a flow meter with a stable flow rate. Background Art

[0002] Simply put, a flow meter is an instrument used to measure the flow of fluid in a pipe or open channel. It can be divided into instantaneous flow and cumulative flow. The instantaneous flow is the amount of fluid flowing through the effective cross-section of a closed pipe or open channel per unit time. The material flowing through can be gas, liquid, or solid; the cumulative flow is the cumulative amount of fluid flowing through the effective cross-section of a closed pipe or open channel within a certain time interval.

[0003] Since the liquid flow rate inside the flow meter for liquid measurement is constant, the pressure change during the process of too fast flow rate causes cavitation inside the flow meter. Therefore, during long-term use, the interior of the flow meter is greatly damaged. The too fast flow rate will cause impact on the measured medium. The strong impact force will cause damage to the components of the flow meter or premature wear, thereby affecting the service life of the flow meter and the practicability of the flow meter. Therefore, a flow meter with a stable flow rate is proposed to solve the above technical problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a flow meter with stable flow rate, which has the advantages of easy adjustment and stable flow rate, and solves the problem that pressure changes during excessive flow rate cause cavitation inside the flow meter. Therefore, during long-term use, the interior of the flow meter is severely damaged. Moreover, excessive flow rate will cause impact on the measured medium, and the strong impact force will cause damage to or premature wear of the components of the flow meter, thereby affecting the service life of the flow meter and the practicability of the flow meter.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow meter with a stable flow rate, comprising a connecting pipe, on which a regulating and stabilizing flow mechanism is provided;

[0006] The regulating and stabilizing flow mechanism comprises connecting flanges fixedly mounted at both ends of the connecting pipe, the internal threads of the connecting flanges are connected with connecting bolts, a mounting seat is fixedly mounted on the top of the connecting pipe, a flow meter body is mounted inside the mounting seat, a partition is fixedly mounted inside the connecting pipe, and a fixing rod is fixedly mounted inside the connecting pipe;

[0007] An adjustment seat is fixedly installed on the top of the connecting pipe, a limit rod is fixedly installed inside the adjusting seat, a movable plate is slidably connected to the outer side of the limit rod and is slidably connected to the inner wall of the adjusting seat, a spring is fixedly installed on the top of the movable plate, and a connecting rod extending to the inside of the connecting pipe is fixedly installed on the bottom of the movable plate.

[0008] Furthermore, the regulating and stabilizing flow mechanism also includes a mounting plate fixedly mounted on the bottom of the connecting rod and slidably connected to the fixing rod, a float is fixedly mounted on the bottom of the mounting plate, and a sealing block that fits the partition is fixedly mounted on the bottom of the mounting plate.

[0009] Furthermore, a threaded hole is provided inside the connecting flange, and the connecting bolt is threadedly connected to the connecting flange through the threaded hole.

[0010] Furthermore, a first sealing hole is opened at the top of the connecting pipe, and the mounting seat is fixedly connected to the top of the connecting pipe through the first sealing hole.

[0011] Furthermore, a plurality of through holes are provided inside the partition plate, and corresponding through holes are also provided inside the sealing block.

[0012] Furthermore, a limiting groove is provided on the inner wall of the adjustment seat, and the movable plate is slidably connected to the inner wall of the adjustment seat through the limiting groove.

[0013] Furthermore, a second sealing hole is opened at the top of the connecting pipe, and the connecting rod extends through the second sealing hole to the inside of the connecting pipe and is fixedly connected to the mounting plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The flow meter with stable flow rate, through the arranged regulating and stabilizing flow mechanism, when the flow meter body detects the fluid, limits the flow rate of the fluid entering the connecting pipe through the mutual cooperation between the various structures on the connecting pipe, so that the flow rate of the fluid flowing through the flow meter body remains stable, thereby reducing the loss of the flow meter body, increasing the service life of the flow meter body, helping to reduce the maintenance or replacement cost and improving the practical performance of the flow meter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front view of the structure of the utility model;

[0018] Figure 3 It is a partial three-dimensional schematic diagram of the structural connecting pipe of the utility model.

[0019] In the figure: 1. connecting pipe; 2. connecting flange; 3. connecting bolt; 4. mounting seat; 5. flow meter body; 6. partition; 7. fixing rod; 8. adjusting seat; 9. limiting rod; 10. movable plate; 11. spring; 12. connecting rod; 13. mounting plate; 14. floating ball; 15. sealing block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 In this embodiment, a flow meter with a stable flow rate includes a connecting pipe 1, on which a regulating and stabilizing flow mechanism is provided.

[0022] See also Figure 1 , Figure 2 and Figure 3 The regulating and stabilizing flow mechanism includes a connecting flange 2 fixedly installed at both ends of the connecting pipe 1, the internal thread of the connecting flange 2 is connected with a connecting bolt 3, and a threaded hole is opened inside the connecting flange 2. The connecting bolt 3 is threadedly connected to the connecting flange 2 through the threaded hole, so that the connecting bolt 3 can conveniently connect the connecting flange 2 with the pipeline to be monitored through the threaded hole.

[0023] Among them, a mounting seat 4 is fixedly installed on the top of the connecting pipe 1, and a flowmeter body 5 is installed inside the mounting seat 4. A first sealing hole is opened on the top of the connecting pipe 1, and the mounting seat 4 is fixedly connected to the top of the connecting pipe 1 through the first sealing hole, so as to facilitate the installation of the flowmeter body 5 through the first sealing hole and ensure the sealing performance of its installation. A partition 6 is fixedly installed inside the connecting pipe 1, and the water flow inside the connecting pipe 1 is blocked by the partition 6 to prevent the internal fluid from flowing too fast.

[0024] Among them, a fixing rod 7 is fixedly installed inside the connecting tube 1, an adjusting seat 8 is fixedly installed on the top of the connecting tube 1, a limiting rod 9 is fixedly installed inside the adjusting seat 8, and the outer side of the limiting rod 9 is slidably connected to a movable plate 10 that is slidably connected to the inner wall of the adjusting seat 8. A limiting groove is provided on the inner wall of the adjusting seat 8, and the movable plate 10 is slidably connected to the inner wall of the adjusting seat 8 through the limiting groove, so that the movable plate 10 can move smoothly inside the adjusting seat 8 under the multiple effects of the limiting rod 9 and the limiting groove. A spring 11 is fixedly installed on the top of the movable plate 10, and a connecting rod 12 extending to the inside of the connecting tube 1 is fixedly installed on the bottom of the movable plate 10.

[0025] In this embodiment, the regulating and stabilizing flow mechanism also includes a mounting plate 13 fixedly mounted on the bottom of the connecting rod 12 and slidably connected to the fixing rod 7. A second sealing hole is provided at the top of the connecting tube 1. The connecting rod 12 extends through the second sealing hole to the interior of the connecting tube 1 and is fixedly connected to the mounting plate 13, so that the connecting rod 12 can drive the mounting plate 13 to adjust its position through the second sealing hole.

[0026] Among them, a float 14 is fixedly installed at the bottom of the mounting plate 13, and a sealing block 15 that fits with the partition 6 is fixedly installed at the bottom of the mounting plate 13. A plurality of through holes are opened inside the partition 6, and corresponding through holes are also opened inside the sealing block 15, so that the internal fluid of the connecting pipe 1 can flow from the sealing block 15 and the partition 6 through the through holes, and the flow rate of the internal fluid of the connecting pipe 1 can be controlled when the position of the sealing block 15 is adjusted.

[0027] It should be noted that the flow meter with stable flow rate, through the setting of the regulating and stabilizing flow mechanism, when the flow meter body 5 detects the fluid, the flow rate of the fluid entering the connecting pipe 1 is limited through the mutual cooperation between the various structures on the connecting pipe 1, so that the flow rate of the fluid flowing through the flow meter body 5 remains stable, thereby reducing the loss of the flow meter body 5, increasing the service life of the flow meter body 5, and helping to reduce the maintenance or replacement cost and improve the practical performance of the flow meter body 5.

[0028] The working principle of the above embodiment is:

[0029] When using the flow meter with stable flow rate, first assemble the various structures on the connecting pipe 1 and check its air tightness, then connect and fix the connecting pipe 1 to the pipeline to be tested through the connecting flange 2 with the connecting bolts 3. When the fluid enters the connecting pipe 1, it flows into the right side of the partition 6 through the sealing block 15 and the through holes on the partition 6, and then flows through the flow meter body 5 for detection. When the fluid flows into the connecting pipe 1 at a fast speed and a high pressure, the fluid lifts the float 14 and drives the sealing block 15 at the bottom of the mounting plate 13 to move upward, so that the through holes on the partition 6 are opened once, thereby controlling the flow rate and pressure of the fluid, so that the flow rate inside the connecting pipe 1 remains stable, thereby reducing the loss to the flow meter body 5 and improving the detection quality and efficiency of the flow meter body 5.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] 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 flow meter with a stable flow rate, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is provided with a flow regulating and stabilizing mechanism; The regulating and stabilizing flow mechanism comprises connecting flanges (2) fixedly mounted on both ends of the connecting pipe (1), the connecting flanges (2) are internally threadedly connected with connecting bolts (3), a mounting seat (4) is fixedly mounted on the top of the connecting pipe (1), a flow meter body (5) is mounted inside the mounting seat (4), a partition (6) is fixedly mounted inside the connecting pipe (1), and a fixing rod (7) is fixedly mounted inside the connecting pipe (1); An adjustment seat (8) is fixedly mounted on the top of the connecting tube (1), a limiting rod (9) is fixedly mounted inside the adjusting seat (8), a movable plate (10) is slidably connected to the outer side of the limiting rod (9) and is slidably connected to the inner wall of the adjusting seat (8), a spring (11) is fixedly mounted on the top of the movable plate (10), and a connecting rod (12) extending into the interior of the connecting tube (1) is fixedly mounted on the bottom of the movable plate (10).

2. A flow meter with a stable flow rate according to claim 1, characterized in that: The regulating and stabilizing flow mechanism also includes a mounting plate (13) fixedly mounted on the bottom of the connecting rod (12) and slidably connected to the fixing rod (7), a floating ball (14) fixedly mounted on the bottom of the mounting plate (13), and a sealing block (15) in contact with the partition (6) fixedly mounted on the bottom of the mounting plate (13).

3. A flow meter with a stable flow rate according to claim 1, characterized in that: A threaded hole is provided inside the connection flange (2), and the connection bolt (3) is threadedly connected to the connection flange (2) through the threaded hole.

4. A flow meter with a stable flow rate according to claim 1, characterized in that: A first sealing hole is provided at the top of the connecting pipe (1), and the mounting seat (4) is fixedly connected to the top of the connecting pipe (1) through the first sealing hole.

5. A flow meter with a stable flow rate according to claim 2, characterized in that: A plurality of through holes are provided inside the partition plate (6), and corresponding through holes are also provided inside the sealing block (15).

6. A flow meter with a stable flow rate according to claim 1, characterized in that: A limiting groove is provided on the inner wall of the adjustment seat (8), and the movable plate (10) is slidably connected to the inner wall of the adjustment seat (8) via the limiting groove.

7. A flow meter with a stable flow rate according to claim 2, characterized in that: A second sealing hole is provided at the top of the connecting pipe (1), and the connecting rod (12) extends through the second sealing hole into the interior of the connecting pipe (1) and is fixedly connected to the mounting plate (13).

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