Freely-installed metal tube float flowmeter

Abstract

The utility model relates to the technical field of flow meters, and discloses a freely-installed metal tube float flow meter which comprises a measuring tube, taper tubes are fixedly connected to the two ends of the measuring tube, flanges are fixedly connected to the ends, away from each other, of the taper tubes, abutting rings are fixedly connected to the ends, away from each other, of the flanges, and float bodies are connected to the interiors of the taper tubes in a sliding mode. Magnetic steel is slidably connected into the floater body, a spring is arranged outside one side of the magnetic steel in a sleeving mode, one end of the spring is fixedly connected to the magnetic steel, the other end of the spring is fixedly connected to the floater body on one side, and an indicator is installed on one side of the measuring tube through a bolt and a nut. According to the utility model, the flow meter can be freely mounted and dismounted, the working efficiency is effectively improved, and meanwhile, the stability and the sealing performance of the flow meter in the use process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to a free-mounting metal tube float flow meter. Background Technology

[0002] Metal tube float flow meters are a commonly used variable area flow meter in industrial automation process control. They are characterized by their small size, large measurement range, and ease of use. They can measure almost all liquid and gas flow rates, and are particularly suitable for measuring low-velocity, low-flow-rate, high-temperature, and high-pressure media. Due to their excellent performance and extremely high reliability, metal tube float flow meters have been widely used in petroleum, chemical, steel, metallurgical, pharmaceutical, water treatment, and environmental engineering fields.

[0003] The working principle of a flow meter is based on the change of a float within a pipe as the fluid flows. After the fluid enters the metal pipe, the pressure difference between the flow velocity and the fluid pressure causes the float to rise or fall along the pipe axis. When the flow rate increases, the float rises; when the flow rate decreases, the float falls. The height of the float's rise is directly proportional to the flow rate. The position of the float can be read using a scale, thus determining the fluid flow rate. However, existing flow meters have a single installation method, making them unsuitable for different pipeline conditions and unable to meet on-site requirements. Therefore, a free-mounting metal tube float flow meter is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a free-installing metal tube float flow meter, which aims to improve the problem that the existing flow meters have a single installation method and cannot be applied to different pipeline conditions to meet on-site requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a free-mounting metal tube float flowmeter, comprising a measuring tube, both ends of which are fixedly connected to tapered tubes, a flange is welded to the tapered tube at the end furthest from the taper, and a stop ring is fixedly connected to the flange at the end furthest from the taper.

[0006] As a further description of the above technical solution:

[0007] A float body is slidably connected inside the tapered tube, and a magnet is slidably connected inside the float body. A spring is sleeved on one side of the magnet.

[0008] As a further description of the above technical solution:

[0009] One end of the spring is fixedly connected to the magnet, and the other end of the spring is fixedly connected to the float body on one side.

[0010] As a further description of the above technical solution:

[0011] An indicator is mounted on one side of the measuring tube by bolts and nuts.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, when fluid enters the conical tube on one side, the float is subjected to force, causing it to move and create a gap between itself and the conical tube, allowing the fluid to enter the measuring tube. This causes the magnet to move and squeeze the spring, generating a rebound force. The greater the fluid flow rate, the greater the thrust, and the greater the displacement of the float. After the float moves, the annular gap between it and the conical tube also increases, allowing for a larger flow rate. When installed vertically in bottom-in-top-out or top-in-bottom-out configurations, when C=A+B; and when installed horizontally in left-in-right-out or right-in-left-out configurations, when C=A+B+D, the force on the float can reach a balanced state. The float will suspend at a certain position in the measuring tube, allowing it to adapt to different working conditions. Attached Figure Description

[0014] Figure 1 This is a front perspective view of a freely installable metal tube float flowmeter proposed in this utility model;

[0015] Figure 2 This is a side perspective view of a freely installable metal tube float flowmeter proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of the sensor for a freely installable metal tube float flowmeter proposed in this utility model.

[0017] Legend:

[0018] 1. Indicator; 2. Measuring tube; 3. Conical tube; 4. Flange; 5. Float body; 6. Magnet; 7. Spring; 8. Abutment ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-3One embodiment of this utility model provides: a freely installable metal tube float flowmeter, including a measuring tube 2, with tapered tubes 3 fixedly connected to both ends of the measuring tube 2, a flange 4 fixedly connected to the end of the tapered tube 3 away from the flange 3, a stop ring 8 fixedly connected to the end of the flange 4 away from the flange 4, a float body 5 slidably connected inside the tapered tube 3, a magnet 6 slidably connected inside the float body 5, a spring 7 sleeved on one side of the magnet 6, one end of the spring 7 fixedly connected to the magnet 6, and the other end of the spring 7 fixedly connected to the float body 5 on one side; an indicator 1 is installed on one side of the measuring tube 2 by bolts and nuts.

[0021] When installing the flow meter, align flange 4 with flange 4 on the pipe to be installed, and then secure it with bolts. After the flow meter is installed and in use, the fluid pressure on the float 5 causes it to move up and down within the tapered tube 3. The annular area between the float 5 and the tapered tube 3 changes with the displacement of the float 5, driving the magnet 6 to compress the spring 7, generating a rebound force. When the float 5 rises, the annular area increases, the flow velocity decreases, and the upward force on the float 5 decreases. Conversely, when the float 5 falls, the annular area decreases, the flow velocity increases, and the upward force on the float 5 increases. When the upward force equals the weight of the float 5... When the float 5 reaches the equilibrium position, the flow meter can be installed vertically (bottom inlet, top outlet) or horizontally (left inlet, right outlet or right inlet, left outlet). When installed vertically, the float 5 is less affected by gravity and mainly relies on the driving force and buoyancy of the fluid to achieve equilibrium. When installed horizontally, the equilibrium state of the float 5 needs to consider additional torque balance factors. The flow meter reflects the flow rate by detecting the position height of the float 5 in the measuring tube 2, so that it can meet the requirements of selecting the installation method. This allows the flow meter to be installed vertically with bottom inlet and top outlet, or horizontally with top inlet and bottom outlet, achieving free installation of the flow meter according to needs.

[0022] Working principle: When the device needs to be installed, the flange 4 on the external pipe is aligned with the flange 4 at both ends of the flow meter, and then bolted in for installation and fixation. After the flow meter is installed, when the fluid enters the cone tube 3 on one side, the float 5 is subjected to force, causing the float 5 to move and create a gap between itself and the cone tube 3, allowing the fluid to enter the measuring tube 2. This causes the magnet 6 to move and squeeze the spring 7, generating a rebound force. The greater the fluid flow, the greater the thrust, and the greater the displacement of the float 5. After the float 5 is displaced, the circumferential gap between it and the cone tube 3 also increases, thus allowing for a larger flow rate. When installed vertically, in the bottom-in-top-out or top-in-bottom-out configuration, when C=A+B; and when installed horizontally, in the left-in-right-out or right-in-left-out configuration, when C=A+B+D, the force of the float 5 can reach a balanced state. The float 5 will hover at a certain position in the measuring tube 2, allowing it to adapt to different working conditions.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A free standing metal tube float flowmeter comprising a measuring tube (2) characterized by: The measuring tube (2) is fixedly connected to both ends of a tapered tube (3), and a flange (4) is welded to the end of the tapered tube (3) away from the other end. A stop ring (8) is fixedly connected to the end of the flange (4) away from the other end.

2. A free standing metal tube float flowmeter according to claim 1 wherein: The inside of the tapered tube (3) is slidably connected to a float body (5), and the inside of the float body (5) is slidably connected to a magnet (6). A spring (7) is sleeved on one side of the magnet (6).

3. A free standing metal tube float flowmeter according to claim 2 wherein: One end of the spring (7) is fixedly connected to the magnet (6), and the other end of the spring (7) is fixedly connected to the float body (5) on one side.

4. A free standing metal tube float flowmeter according to claim 1 wherein: An indicator (1) is mounted on one side of the measuring tube (2) by bolts and nuts.

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